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HomeMy WebLinkAboutWOODSPRING SUITES - PDP190006 - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORTCity of Fort Collins Wood Spring Suites (847 South East Frontage Road) Preliminary Drainage Report MARCH 2019 | VERSION 1 Prepared By: 4582 South Ulster Street, Suite 1500 Denver, CO 80237 Erin L. Griffin Registered Professional Engineer State of Colorado No. 42694 2 INTRODUCTION The proposed 847 SE Frontage Road Project is located within the Northwest Quarter of Section 15, Township 7 North, Range 68 West of the Sixth Principal Meridian, City of Fort Collins, County of Larimer, Colorado. The site is bound by an existing Vehicle Emissions Testing Station to the northeast, I-25 to the northwest, and the frontage road to the south. • North: Interstate 25 (“I-25”) • East: Vehicle Emissions Testing Facility • South: Frontage Road • West: Interstate 25 (“I-25”) A vicinity map is provided below. PROPOSED DEVELOPMENT This project will be developed on a platted tract located in Lot 1 of the northeast quarter of Section 15, Township 7 North, Range 69 West of the 6th PM. The site is approximately 2.79 acres and is an existing vacant site. The proposed site includes one building with four stories and associated parking, landscape, and sidewalk improvements. The soil on the site is 100% Nunn loam (73), which is classified as Hydrologic Soil Group C The soil Classification Map can be found in Appendix A. The site is currently zoned C-G (General Commercial). The proposed land uses for this site will consist of a four-story hotel and surrounding site and utility improvements. Preliminary Drainage Report 847 South East Frontage Road – Fort Collins, Colorado 3 HISTORIC DRAINAGE The existing Site is relativity flat with slopes ranging from 0.5% to 3%. There are currently no existing on- site water quality or detention improvements. The majority of the site currently slopes to the southwest, conveying water into the frontage road. The site and surrounding area currently drain to a swale south of the Frontage Road conveyed into Boxelder Creek south of the swale. Once the Project takes over control of the Site, the existing topography is anticipated to be fairly flat and consist of the following: The majority of existing flows for this site are conveyed into an existing inlet at the northwest corner of the site which flows into a vegetated swale until it is intercepted by Spring Creek. Once the Project takes over control of the Site, the existing topography is anticipated to be fairly flat and consist of the following: • Highest Elevation: 4931 • Lowest Elevation: 4926 • Average Slopes: ±3% The site is located within City of Fort Collins Federal Emergency Management Agency (FEMA) Flood Insurance Rate Map Number 08069C1003, and a LOMR/CLOMR was revised and effective February 21, 2019 and is designated as an area outside of the 100-year floodplain. The updated LOMR/CLOMR study is included in Appendix B. DESIGN CRITERIA The City of Fort Collins “Amendments to the Urban Drainage and Flood Control District Criteria Manual,” (Criteria Manual) and the “Urban Drainage and Flood Control District Urban Storm Drainage Criteria Manual” Volumes 1, 2, and 3 (Drainage Manual), with latest revisions, were used to prepare the storm calculations. Weighted impervious values were calculated and used for the site area in accordance with the Criteria Manual and Drainage Manual. Hydrologic Criteria The proposed imperviousness of the site was determined in order to evaluate the Project’s potential impacts on stormwater runoff. This was compared to the existing drainage master plan that exists for the area. No storm sewer adjacent to the site is available to service the site because of existing depths of service lines. A topographic survey and knowledge of the Site was utilized for this analysis. The existing report used the C values to determine the site’s allowable runoff. Additional analysis was needed to compare the existing report to the proposed condition due to a change in rainfall, impervious values, and area assumed. This analysis is and site-specific calculations are Appendix C. A drainage area map representing the proposed conditions has been included in Appendix D. The existing drainage report has been included within Appendix E. The 2-year, 10-year and 100-year storm events were used in determining rainfall and runoff for the proposed site. The existing report uses the minor storm as 10 year, which is why both the 2-year and the 10-year calculations were includedTable RA-7 of the Criteria Manual was used to determine rainfall data for the storm events and has been included in Appendix C. The C value of the site was originally planned for .75, and this is decreasing with the site. 4 The off-site storm system has been sized to obtain the proposed project site. This site is designed to flow offsite through the curb and gutter system and into two existing inlets downstream within South East Frontage road, per the master drainage report. With the existing report and the site’s ultimate outfall into Boxelder creek, no detention is required on site and no water quality is being required for the site either. This is due to the master plan taking care of both water quality and detention downstream. Hydraulic Criteria The design will include a site that gravity flows through proposed swales and curb cuts to the south into the existing curb and gutter system within the South East Frontage Road. The existing master plan, street gutter capacity, and storm sewer and inlets have been previously designed to provide for the 100-year event. With the final report, calculations for the curb chases and the swale are anticipated to be provided. Water Quality Treatment Criteria Water quality has not been provided with this site. Per the existing master drainage report, the swale downstream takes care of the water quality for the entire area. Additionally, no adjacent storm sewer systems exist to connect a pond or water quality system into for the site. DRAINAGE PLAN GENERAL CONCEPT The site was divided into seven onsite sub-basins which are described in greater detail in the following section. BMPs were selected utilizing the four step process outlined in Volume 3, Chapter 1, Section 4 of the Drainage Manual: 1. Employ runoff reduction practices - The redevelopment on an urban site provides limited opportunities to employ runoff reduction practices. Site has been developed to install landscaping wherever pavement (or building) is not required. 2. Implement BMPs that provide a water quality capture volume with a slow release – part of the site will be treated with a swale (Basin A). Other water quality options are limited due to the existing adjacent master planned storm system being only 2.5’ of depth downstream at the exsiting inlets. 3. Stabilize streams – Not applicable. This development is not adjacent to a stream, nor directly impact the downstream water body (Boxelder). 4. Implement site specific and other source control BMPs –Trash containers, recycling containers, and the majority of vehicular parking will be located inside a fence to reduce potential for contamination discharges. Runoff generated by the majority of these drainage basins will be conveyed into the existing curb and gutter along South East Frontage Road and conveyed to the east to the existing storm sewer inlets and will be treated by a WQ BMP before being released into Elderbox Creek. No detention was previously provided due to the site’s proximity to Boxelder Creek. A proposed drainage area map which shows the limits of these sub-basins has been provided in Appendix D. Calculations related to the preliminary sizing of the basin runoff have been included in Appendix C. Preliminary Drainage Report 847 South East Frontage Road – Fort Collins, Colorado 5 SPECIFIC DETAILS Sub-basin A Sub-basin A is 0.11 acres and consists of parking lot area that drains into a grass swale. Runoff within this sub-basin will collect in the curb and gutter system to the south along South East Frontage Road. The runoff coefficients for this sub-basin are 0.86 and 0.91 for the 2-year and 100-year storm, respectively. Sub-basin B Sub-basin B is 0.52 acres and consists of parking, sidewalk and landscaped areas. Runoff within this sub- basin will enter the road to the south via on site curb and gutter systems. This sub-basin receives flows from Sub-Basin B-1, which is upstream and detailed below. The runoff coefficients for this sub-basin are 0.69 and 0.74 for the 2-year and 100-year storm, respectively. Sub-basin B1 Sub-basin B1 is 0.21 acres and consists of parking, sidewalk and landscaped areas. Runoff within this sub-basin will enter design Point B1, which is a sidewalk chase. The runoff from this basin flows through the sidewalk chase and into the 4’ gutter pan at the end of the parking stalls within Sub-basin B. The runoff coefficients for this sub-basin are 0.92 and 0.97 for the 2-year and 100-year storm, respectively. Sub-basin C Sub-basin C is 0.15 acres and consists of parking, sidewalk and landscaped areas. Runoff within this sub- basin will enter design Point C, which is a sidewalk chase. The runoff from this basin flows through the sidewalk chase and into the curb and gutter into the existing South East Frontage road. The runoff coefficients for this sub-basin are 0.81 and 0.86 for the 2-year and 100-year storm, respectively. Sub-basin D Sub-basin D is 0.48 acres and consists of parking, sidewalk and landscaped areas. Runoff within this sub- basin will enter design Point D, which is a sidewalk chase that flows from on site into the Southeast Frontage Road. The runoff coefficients for this sub-basin are 0.85 and 0.90 for the 2-year and 100-year storm, respectively. Sub-basin D1 Sub-basin D1 is 0.18 acres and consists of parking, sidewalk and landscaped areas. Runoff within this sub-basin will enter design Point D1, which is a sidewalk chase. The runoff from this basin flows through the sidewalk chase and into the curb and gutter system at the north end of the site within Sub-basin D. The runoff coefficients for this sub-basin are 0.91 and 0.96 for the 2-year and 100-year storm, respectively. Sub-basin E Sub-basin E is 0.07 acres and consists of the mostly landscape area that runs offsite. Runoff within this sub-basin will flow to the east and the north of the site and will enter into existing drainage systems. The runoff coefficients for this sub-basin are 0.20 and 0.25 for the 2-year and 100-year storm, respectively. 6 Sub-basin R Sub-basin R is 0.29 acres and consists of the roof area. Runoff within this sub-basin will be detailed at a later date through roof drains and is anticipated to surface flow through sidewalk chases. The runoff coefficients for this sub-basin are 0.95 and 1.00 for the 2-year and 100-year storm, respectively. Sub-basin OS1 Sub-basin OS1 is 0.80 acres and consists of the mostly landscape area that runs offsite to the north. Runoff within this sub-basin will flow to the east and the north of the site and will enter into existing drainage systems along the Interstate 25 Highway. Due to a requirement for berms in this area, runoff is routed to the northwest of the site. The runoff coefficients for this sub-basin are 0.20 and 0.25 for the 2-year and 100- year storm, respectively. IMPLEMENTATION AND PHASING The Project will disturb over 10,000 square feet of stabilized ground; therefore, a Stormwater Management Plan is required. Construction will be implemented in one phase due to the size of the project and types of improvements required for the Project. The Stormwater Management Plans and Details will be provided in the Project Construction Documents, and a separate StormWater Management Plan and Report have been included with this submittal. CONCLUSIONS COMPLIANCE WITH STANDARDS The 847 South East Frontage Road project is in compliance with City of Fort Collins criteria for storm drainage design as it is in compliance with the Master Drainage Plan for the Area developed by Northern Engineering Services, Inc dated April 13, 2001. The “Fort Collins Amendments to the Urban Drainage and Flood Control District Criteria Manual” and the Urban Drainage Flood Control District “Urban Storm Drainage Criteria Manual Volumes 1, 2, and 3 have been utilized for reference. SUMMARY OF CONCEPT The onsite drainage basins use curb and gutter along with one grass swale and two sidewalk chases to collect and convey runoff from the site to the south into the existing road (South East Frontage Road) generated within the project site to an existing storm sewer system to the east. This design complies with the master drainage report referenced above. REFERENCES Fort Collins Amendments to the Urban Drainage and Flood Control District, City of Fort Collins. Urban Storm Drainage Criteria Manual, Volume 1-3, Urban Drainage and Flood Control District, Denver, CO; January 2016, with latest revisions. Preliminary Drainage Report 847 South East Frontage Road – Fort Collins, Colorado 7 APPENDICES A. NRCS Data B. FEMA Firm Map C. CIA Calculations D. Proposed Drainage Map E. Existing Drainage Report 8 APPENDIX A 6 Custom Soil Resource Report Soil Map 4491860 4491890 4491920 4491950 4491980 4492010 4492040 4492070 4492100 4491860 4491890 4491920 4491950 4491980 4492010 4492040 4492070 4492100 499900 499930 499960 499990 500020 500050 500080 499900 499930 499960 499990 500020 500050 500080 40° 34' 47'' N 105° 0' 4'' W 40° 34' 47'' N 104° 59' 56'' W 40° 34' 38'' N 105° 0' 4'' W 40° 34' 38'' N 104° 59' 56'' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 0 50 100 200 300 Feet 0 15 30 60 90 Meters Map Scale: 1:1,320 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 73 Nunn clay loam, 0 to 1 percent slopes 3.2 93.6% 74 Nunn clay loam, 1 to 3 percent slopes 0.2 6.4% Totals for Area of Interest 3.4 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, Custom Soil Resource Report 8 onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. Custom Soil Resource Report 9 Larimer County Area, Colorado 73—Nunn clay loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2tlng Elevation: 4,100 to 5,700 feet Mean annual precipitation: 14 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost-free period: 135 to 152 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 6 inches: clay loam Bt1 - 6 to 10 inches: clay loam Bt2 - 10 to 26 inches: clay loam Btk - 26 to 31 inches: clay loam Bk1 - 31 to 47 inches: loam Bk2 - 47 to 80 inches: loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 7 percent Salinity, maximum in profile: Nonsaline (0.1 to 1.0 mmhos/cm) Sodium adsorption ratio, maximum in profile: 0.5 Available water storage in profile: High (about 9.1 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: Clayey Plains (R067BY042CO) Hydric soil rating: No Custom Soil Resource Report 10 Minor Components Heldt Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Ecological site: Clayey Plains (R067BY042CO) Hydric soil rating: No Wages Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Ecological site: Loamy Plains (R067BY002CO) Hydric soil rating: No 74—Nunn clay loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: 2tlpl Elevation: 3,900 to 5,840 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 50 to 54 degrees F Frost-free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Parent material: Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 9 inches: clay loam Bt - 9 to 13 inches: clay loam Btk - 13 to 25 inches: clay loam Bk1 - 25 to 38 inches: clay loam Bk2 - 38 to 80 inches: clay loam Custom Soil Resource Report 11 Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 7 percent Salinity, maximum in profile: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum in profile: 0.5 Available water storage in profile: High (about 9.9 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: Clayey Plains (R067BY042CO) Hydric soil rating: No Minor Components Heldt Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Ecological site: Clayey Plains (R067BY042CO) Hydric soil rating: No Satanta Percent of map unit: 5 percent Landform: Terraces Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Ecological site: Loamy Plains (R067BY002CO) Hydric soil rating: No Custom Soil Resource Report 12 Soil Information for All Uses Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables) containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report (table) is included. Soil Chemical Properties This folder contains a collection of tabular reports that present soil chemical properties. The reports (tables) include all selected map units and components for each map unit. Soil chemical properties are measured or inferred from direct observations in the field or laboratory. Examples of soil chemical properties include pH, cation exchange capacity, calcium carbonate, gypsum, and electrical conductivity. Chemical Soil Properties (WoodSpring Suites) This table shows estimates of some chemical characteristics and features that affect soil behavior. These estimates are given for the layers of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Cation-exchange capacity is the total amount of extractable cations that can be held by the soil, expressed in terms of milliequivalents per 100 grams of soil at neutrality (pH 7.0) or at some other stated pH value. Soils having a low cation-exchange capacity hold fewer cations and may require more frequent applications of fertilizer than soils having a high cation-exchange capacity. The ability to retain cations reduces the hazard of ground-water pollution. Effective cation-exchange capacity refers to the sum of extractable cations plus aluminum expressed in terms of milliequivalents per 100 grams of soil. It is determined for soils that have pH of less than 5.5. 13 Soil reaction is a measure of acidity or alkalinity. It is important in selecting crops and other plants, in evaluating soil amendments for fertility and stabilization, and in determining the risk of corrosion. Calcium carbonate equivalent is the percent of carbonates, by weight, in the fraction of the soil less than 2 millimeters in size. The availability of plant nutrients is influenced by the amount of carbonates in the soil. Gypsum is expressed as a percent, by weight, of hydrated calcium sulfates in the fraction of the soil less than 20 millimeters in size. Gypsum is partially soluble in water. Soils that have a high content of gypsum may collapse if the gypsum is removed by percolating water. Salinity is a measure of soluble salts in the soil at saturation. It is expressed as the electrical conductivity of the saturation extract, in millimhos per centimeter at 25 degrees C. Estimates are based on field and laboratory measurements at representative sites of nonirrigated soils. The salinity of irrigated soils is affected by the quality of the irrigation water and by the frequency of water application. Hence, the salinity of soils in individual fields can differ greatly from the value given in the table. Salinity affects the suitability of a soil for crop production, the stability of soil if used as construction material, and the potential of the soil to corrode metal and concrete. Sodium adsorption ratio (SAR) is a measure of the amount of sodium (Na) relative to calcium (Ca) and magnesium (Mg) in the water extract from saturated soil paste. It is the ratio of the Na concentration divided by the square root of one-half of the Ca + Mg concentration. Soils that have SAR values of 13 or more may be characterized by an increased dispersion of organic matter and clay particles, reduced saturated hydraulic conductivity and aeration, and a general degradation of soil structure. Custom Soil Resource Report 14 Chemical Soil Properties–Larimer County Area, Colorado Map symbol and soil name Depth Cation- exchange capacity Effective cation- exchange capacity Soil reaction Calcium carbonate Gypsum Salinity Sodium adsorption ratio In meq/100g meq/100g pH Pct Pct mmhos/cm 73—Nunn clay loam, 0 to 1 percent slopes Nunn 0-6 21-29 — 6.6-7.8 0-1 0 0.0-1.0 0 6-10 27-33 — 6.6-7.8 0-1 0 0.0-1.0 0 10-26 27-33 — 6.6-7.8 0-1 0 0.0-1.0 0 26-31 16-25 — 7.4-8.5 1-5 0 0.1-1.0 0 31-47 14-20 — 7.9-8.6 2-5 0 0.1-1.0 0-1 47-80 11-18 — 7.4-8.6 2-7 0 0.0-1.0 0-1 74—Nunn clay loam, 1 to 3 percent slopes Nunn 0-9 22-29 — 6.6-7.8 0-1 0 0.1-2.0 0 9-13 27-33 — 6.6-7.8 0-1 0 0.1-2.0 0 13-25 26-31 — 7.4-8.5 0-5 0 0.1-2.0 0 25-38 14-24 — 7.9-8.6 2-5 0 0.1-2.0 0-1 38-80 11-24 — 7.4-8.6 2-7 0 0.1-2.0 0-1 Custom Soil Resource Report 15 Soil Physical Properties This folder contains a collection of tabular reports that present soil physical properties. The reports (tables) include all selected map units and components for each map unit. Soil physical properties are measured or inferred from direct observations in the field or laboratory. Examples of soil physical properties include percent clay, organic matter, saturated hydraulic conductivity, available water capacity, and bulk density. Engineering Properties (WoodSpring Suites) This table gives the engineering classifications and the range of engineering properties for the layers of each soil in the survey area. Hydrologic soil group is a group of soils having similar runoff potential under similar storm and cover conditions. The criteria for determining Hydrologic soil group is found in the National Engineering Handbook, Chapter 7 issued May 2007(http:// directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=17757.wba). Listing HSGs by soil map unit component and not by soil series is a new concept for the engineers. Past engineering references contained lists of HSGs by soil series. Soil series are continually being defined and redefined, and the list of soil series names changes so frequently as to make the task of maintaining a single national list virtually impossible. Therefore, the criteria is now used to calculate the HSG using the component soil properties and no such national series lists will be maintained. All such references are obsolete and their use should be discontinued. Soil properties that influence runoff potential are those that influence the minimum rate of infiltration for a bare soil after prolonged wetting and when not frozen. These properties are depth to a seasonal high water table, saturated hydraulic conductivity after prolonged wetting, and depth to a layer with a very slow water transmission rate. Changes in soil properties caused by land management or climate changes also cause the hydrologic soil group to change. The influence of ground cover is treated independently. There are four hydrologic soil groups, A, B, C, and D, and three dual groups, A/D, B/D, and C/D. In the dual groups, the first letter is for drained areas and the second letter is for undrained areas. The four hydrologic soil groups are described in the following paragraphs: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell Custom Soil Resource Report 16 potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. Depth to the upper and lower boundaries of each layer is indicated. Texture is given in the standard terms used by the U.S. Department of Agriculture. These terms are defined according to percentages of sand, silt, and clay in the fraction of the soil that is less than 2 millimeters in diameter. "Loam," for example, is soil that is 7 to 27 percent clay, 28 to 50 percent silt, and less than 52 percent sand. If the content of particles coarser than sand is 15 percent or more, an appropriate modifier is added, for example, "gravelly." Classification of the soils is determined according to the Unified soil classification system (ASTM, 2005) and the system adopted by the American Association of State Highway and Transportation Officials (AASHTO, 2004). The Unified system classifies soils according to properties that affect their use as construction material. Soils are classified according to particle-size distribution of the fraction less than 3 inches in diameter and according to plasticity index, liquid limit, and organic matter content. Sandy and gravelly soils are identified as GW, GP, GM, GC, SW, SP, SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH, and OH; and highly organic soils as PT. Soils exhibiting engineering properties of two groups can have a dual classification, for example, CL-ML. The AASHTO system classifies soils according to those properties that affect roadway construction and maintenance. In this system, the fraction of a mineral soil that is less than 3 inches in diameter is classified in one of seven groups from A-1 through A-7 on the basis of particle-size distribution, liquid limit, and plasticity index. Soils in group A-1 are coarse grained and low in content of fines (silt and clay). At the other extreme, soils in group A-7 are fine grained. Highly organic soils are classified in group A-8 on the basis of visual inspection. If laboratory data are available, the A-1, A-2, and A-7 groups are further classified as A-1-a, A-1-b, A-2-4, A-2-5, A-2-6, A-2-7, A-7-5, or A-7-6. As an additional refinement, the suitability of a soil as subgrade material can be indicated by a group index number. Group index numbers range from 0 for the best subgrade material to 20 or higher for the poorest. Percentage of rock fragments larger than 10 inches in diameter and 3 to 10 inches in diameter are indicated as a percentage of the total soil on a dry-weight basis. The percentages are estimates determined mainly by converting volume percentage in the field to weight percentage. Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). Percentage (of soil particles) passing designated sieves is the percentage of the soil fraction less than 3 inches in diameter based on an ovendry weight. The sieves, numbers 4, 10, 40, and 200 (USA Standard Series), have openings of 4.76, 2.00, 0.420, and 0.074 millimeters, respectively. Estimates are based on laboratory tests of soils sampled in the survey area and in nearby areas and on estimates made in the field. Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). Liquid limit and plasticity index (Atterberg limits) indicate the plasticity characteristics of a soil. The estimates are based on test data from the survey area or from nearby areas and on field examination. Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). References: Custom Soil Resource Report 17 American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Custom Soil Resource Report 18 Absence of an entry indicates that the data were not estimated. The asterisk '*' denotes the representative texture; other possible textures follow the dash. The criteria for determining the hydrologic soil group for individual soil components is found in the National Engineering Handbook, Chapter 7 issued May 2007(http://directives.sc.egov.usda.gov/ OpenNonWebContent.aspx?content=17757.wba). Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). Engineering Properties–Larimer County Area, Colorado Map unit symbol and soil name Pct. of map unit Hydrolo gic group Depth USDA texture Classification Pct Fragments Percentage passing sieve number— Liquid limit Plasticit y index Unified AASHTO >10 inches 3-10 inches 4 10 40 200 In L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H 73—Nunn clay loam, 0 to 1 percent slopes Nunn 85 C 0-6 Clay loam CL A-7-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 93-96-1 00 62-68- 74 39-44 -52 19-22-2 7 6-10 Clay loam, clay CH A-7-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 90-95-1 00 69-76- 83 47-51 -59 24-27-3 3 10-26 Clay loam, clay CH A-7-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 90-95-1 00 69-76- 83 47-51 -59 Engineering Properties–Larimer County Area, Colorado Map unit symbol and soil name Pct. of map unit Hydrolo gic group Depth USDA texture Classification Pct Fragments Percentage passing sieve number— Liquid limit Plasticit y index Unified AASHTO >10 inches 3-10 inches 4 10 40 200 In L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H L-R-H 74—Nunn clay loam, 1 to 3 percent slopes Nunn 85 C 0-9 Clay loam CL A-7-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 91-94- 98 62-68- 74 39-44 -52 18-21-2 7 9-13 Clay loam, clay CH A-7-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 90-95-1 00 69-76- 82 47-51 -59 24-27-3 3 13-25 Clay loam, clay CL A-7-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 90-95-1 00 69-76- 82 45-49 -57 24-27-3 3 25-38 Sandy clay loam, loam, clay loam CL A-6 0- 0- 0 0- 0- 0 100-100 Physical Soil Properties (WoodSpring Suites) This table shows estimates of some physical characteristics and features that affect soil behavior. These estimates are given for the layers of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Particle size is the effective diameter of a soil particle as measured by sedimentation, sieving, or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits. The broad classes are sand, silt, and clay, ranging from the larger to the smaller. Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2 millimeters in diameter. In this table, the estimated sand content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 millimeter in diameter. In this table, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Clay as a soil separate consists of mineral soil particles that are less than 0.002 millimeter in diameter. In this table, the estimated clay content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of sand, silt, and clay affects the physical behavior of a soil. Particle size is important for engineering and agronomic interpretations, for determination of soil hydrologic qualities, and for soil classification. The amount and kind of clay affect the fertility and physical condition of the soil and the ability of the soil to adsorb cations and to retain moisture. They influence shrink- swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil dispersion, and other soil properties. The amount and kind of clay in a soil also affect tillage and earthmoving operations. Moist bulk density is the weight of soil (ovendry) per unit volume. Volume is measured when the soil is at field moisture capacity, that is, the moisture content at 1/3- or 1/10-bar (33kPa or 10kPa) moisture tension. Weight is determined after the soil is dried at 105 degrees C. In the table, the estimated moist bulk density of each soil horizon is expressed in grams per cubic centimeter of soil material that is less than 2 millimeters in diameter. Bulk density data are used to compute linear extensibility, shrink-swell potential, available water capacity, total pore space, and other soil properties. The moist bulk density of a soil indicates the pore space available for water and roots. Depending on soil texture, a bulk density of more than 1.4 can restrict water storage and root penetration. Moist bulk density is influenced by texture, kind of clay, content of organic matter, and soil structure. Saturated hydraulic conductivity (Ksat) refers to the ease with which pores in a saturated soil transmit water. The estimates in the table are expressed in terms of micrometers per second. They are based on soil characteristics observed in the field, particularly structure, porosity, and texture. Saturated hydraulic conductivity (Ksat) is considered in the design of soil drainage systems and septic tank absorption fields. Custom Soil Resource Report 21 Available water capacity refers to the quantity of water that the soil is capable of storing for use by plants. The capacity for water storage is given in inches of water per inch of soil for each soil layer. The capacity varies, depending on soil properties that affect retention of water. The most important properties are the content of organic matter, soil texture, bulk density, and soil structure. Available water capacity is an important factor in the choice of plants or crops to be grown and in the design and management of irrigation systems. Available water capacity is not an estimate of the quantity of water actually available to plants at any given time. Linear extensibility refers to the change in length of an unconfined clod as moisture content is decreased from a moist to a dry state. It is an expression of the volume change between the water content of the clod at 1/3- or 1/10-bar tension (33kPa or 10kPa tension) and oven dryness. The volume change is reported in the table as percent change for the whole soil. The amount and type of clay minerals in the soil influence volume change. Linear extensibility is used to determine the shrink-swell potential of soils. The shrink-swell potential is low if the soil has a linear extensibility of less than 3 percent; moderate if 3 to 6 percent; high if 6 to 9 percent; and very high if more than 9 percent. If the linear extensibility is more than 3, shrinking and swelling can cause damage to buildings, roads, and other structures and to plant roots. Special design commonly is needed. Organic matter is the plant and animal residue in the soil at various stages of decomposition. In this table, the estimated content of organic matter is expressed as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of organic matter in a soil can be maintained by returning crop residue to the soil. Organic matter has a positive effect on available water capacity, water infiltration, soil organism activity, and tilth. It is a source of nitrogen and other nutrients for crops and soil organisms. Erosion factors are shown in the table as the K factor (Kw and Kf) and the T factor. Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by water. Factor K is one of six factors used in the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) to predict the average annual rate of soil loss by sheet and rill erosion in tons per acre per year. The estimates are based primarily on percentage of silt, sand, and organic matter and on soil structure and Ksat. Values of K range from 0.02 to 0.69. Other factors being equal, the higher the value, the more susceptible the soil is to sheet and rill erosion by water. Erosion factor Kw indicates the erodibility of the whole soil. The estimates are modified by the presence of rock fragments. Erosion factor Kf indicates the erodibility of the fine-earth fraction, or the material less than 2 millimeters in size. Erosion factor T is an estimate of the maximum average annual rate of soil erosion by wind and/or water that can occur without affecting crop productivity over a sustained period. The rate is in tons per acre per year. Wind erodibility groups are made up of soils that have similar properties affecting their susceptibility to wind erosion in cultivated areas. The soils assigned to group 1 are the most susceptible to wind erosion, and those assigned to group 8 are the least susceptible. The groups are described in the "National Soil Survey Handbook." Custom Soil Resource Report 22 Wind erodibility index is a numerical value indicating the susceptibility of soil to wind erosion, or the tons per acre per year that can be expected to be lost to wind erosion. There is a close correlation between wind erosion and the texture of the surface layer, the size and durability of surface clods, rock fragments, organic matter, and a calcareous reaction. Soil moisture and frozen soil layers also influence wind erosion. Reference: United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. (http://soils.usda.gov) Custom Soil Resource Report 23 Three values are provided to identify the expected Low (L), Representative Value (R), and High (H). Physical Soil Properties–Larimer County Area, Colorado Map symbol and soil name Depth Sand Silt Clay Moist bulk density Saturated hydraulic conductivity Available water capacity Linear extensibility Organic matter Erosion factors Wind erodibility group Wind erodibility index Kw Kf T In Pct Pct Pct g/cc micro m/sec In/In Pct Pct 73—Nunn clay loam, 0 to 1 percent slopes Nunn 0-6 36-43- 45 17-26- 37 27-31- 38 1.39-1.41- 1.43 1.00-1.41-4.23 0.16-0.16-0.1 7 3.4- 4.2- 6.8 1.0- 1.5- 2.0 .32 .32 5 6 48 6-10 25-32- 39 16-30- 40 35-38- 45 1.32-1.37- 1.42 0.42-0.92-1.41 0.14-0.15-0.1 6 5.8- 6.8- 8.4 1.0- 1.5- 2.0 .28 .28 10-26 25-32- 39 16-30- 40 35-38- 45 1.32-1.37- 1.42 0.42-0.92-1.41 0.14-0.15-0.1 6 5.8- 6.8- 8.4 1.0- 1.5- 2.0 .28 .28 26-31 41-42- 64 15-26- 39 20-32- 35 1.40-1.46- 1.52 1.41-2.82-14.11 0.12-0.15-0.1 6 1.7- 4.0- 5.7 0.5- 0.8- 1.0 .32 .32 31-47 35-47- 65 5-32- 45 20-21- 30 1.42-1.52- 9 APPENDIX B Follows Conditional Case No.: 15-08-0329R Page 1 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: LOMR-APP 17-08-1354P Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT COMMUNITY AND REVISION INFORMATION PROJECT DESCRIPTION COMMUNITY APPROXIMATE LATITUDE & LONGITUDE: 40.580, -105.010 SOURCE: USGS QUADRANGLE DATUM: NAD 83 Larimer County Colorado (Unincorporated Areas) COMMUNITY NO.: 080101 BASIS OF REQUEST IDENTIFIER BRIDGE CHANNELIZATION CULVERT DETENTION BASIN SIPHON CANAL WEIR BASE MAP CHANGES FLOODWAY HYDRAULIC ANALYSIS HYDROLOGIC ANALYSIS UPDATED TOPOGRAPHIC DATA ESDF/ Boxelder Creek ANNOTATED MAPPING ENCLOSURES ANNOTATED STUDY ENCLOSURES DATE: December 19, 2006 DATE: December 19, 2006 DATE: December 19, 2006 DATE: May 2, 2012 DATE: May 2, 2012 DATE: December 19, 2006 DATE: May 2, 2012 DATE: December 19, 2006 DATE: December 19, 2006 DATE: December 19, 2006 DATE: December 19, 2006 NO.: 08069C0769F NO.: 08069C0788F NO.: 08069C0982F NO.: 08069C0984H NO.: 08069C0992G NO.: 08069C1001F NO.: 08069C1003G NO.: 08069C1011F NO.: 08069C1013F NO.: 08069C1014F NO.: 08069C1202F TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* Page 2 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: 17-08-1354P LOMR-APP Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER FLOODING SOURCES AFFECTED BY THIS REVISION FLOODING SOURCES AND REVISED REACHES Boxelder Creek - from the confluence with Cache La Poudre River to approximately 80 feet upstream of County Road 54 Boxelder Creek I-25 Split - from the confluence with Cache La Poudre River to the divergence from Boxelder Creek Boxelder Creek I-25 Split Overflow - from the confluence with Boxelder Creek I-25 Split to the divergence from Boxelder Creek I-25 Split Boxelder Creek Overflow Downstream - from the confluence with Boxelder Creek to approximately 990 feet upstream of Frontage Road Northeast Boxelder Creek Overflow Upstream - from the upstream side of Larimer and Weld Canal to the divergence from Boxelder Creek Boxelder Creek Overflow West - from the confluence with Boxelder Creek to the divergence from Boxelder Creek Overflow Downstream Business Park Denrose - from the confluence with Business Park West to the divergence from Boxelder Creek Overflow Downstream Business Park Middle - from the confluence with Boxelder Creek to approximately 140 feet upstream of the confluence of Business Park South Business Park South - from the confluence with Business Park Middle to the divergence from Business Park Denrose Business Park West - from the confluence with Boxelder Creek to the divergence from Boxelder Creek Overflow Downstream Cache La Poudre River Split R Path - from the confluence with Cache La Poudre River to the divergence from Boxelder Creek Cooper Slough - from approximately 730 feet downstream of Mulberry Street to the downstream side of Larimer and Weld Canal Cooper Slough Overflow - from the confluence with Boxelder Creek to the divergence from Cooper Slough Sherry Drive Overflow - from Cache La Poudre Reservoir Inlet to the downstream side of Lake Canal This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Page 3 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: 17-08-1354P LOMR-APP Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases Boxelder Creek Zone X (shaded) Zone X (unshaded) NONE YES Boxelder Creek I-25 Split Zone AE Zone X (unshaded) NONE YES BFEs* No BFEs NONE YES Floodway No Floodway NONE YES Zone X (shaded) Zone X (unshaded) NONE YES Boxelder Creek I-25 Split Overflow Zone AE Zone X (unshaded) NONE YES BFEs No BFEs NONE YES YES Boxelder Creek Overflow Upstream Floodway No Floodway NONE Zone AE Zone AE YES YES BFEs BFEs YES YES YES Boxelder Creek Overflow Downstream Floodway Floodway YES Zone X (shaded) Zone X (unshaded) NONE YES Zone AE Zone X (unshaded) NONE YES BFEs No BFEs NONE YES YES Boxelder Creek Overflow West Floodway No Floodway NONE Zone AE Zone X (unshaded) NONE YES YES Business Park Denrose BFEs No BFEs NONE Zone AE Zone AE NONE YES YES YES BFEs No BFEs NONE Business Park Middle Zone AE Zone X (unshaded) NONE YES YES YES BFEs No BFEs NONE YES Business Park South Zone AE Zone X (unshaded) NONE YES BFEs No BFEs NONE YES Zone AO Zone X (unshaded) NONE YES Business Park West Zone AE Zone X (unshaded) NONE YES BFEs No BFES NONE YES Cache La Poudre River Split R Path Zone AE Zone AE YES YES BFEs BFEs YES YES Floodway Floodway YES YES Cooper Slough Zone AE Zone AE YES YES BFEs BFEs YES Page 4 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: 17-08-1354P LOMR-APP Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) OTHER COMMUNITIES AFFECTED BY THIS REVISION CID Number: 080005 Name: Town of Timnath, Colorado AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT TYPE: FIRM* NO REVISIONS TO THE FLOOD INSURANCE STUDY REPORT TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* NO.: 08069C1011F NO.: 08069C1012F NO.: 08069C1013F NO.: 08069C1014F NO.: 08069C1202F DATE: December 19, 2006 DATE: December 19, 2006 DATE: December 19, 2006 DATE: December 19, 2006 DATE: December 19, 2006 CID Number: 080102 Name: City of Fort Collins, Colorado AFFECTED MAP PANELS AFFECTED PORTIONS OF THE FLOOD INSURANCE STUDY REPORT DATE OF EFFECTIVE FLOOD INSURANCE STUDY PROFILES: 110P-114P, 121P-122P, 147P-151P (removed), 156P-158P (removed), 160P, 182P, 198P (removed), 199P-200P 209P-213P, 288P FLOODWAY DATA TABLE: 4 SUMMARY OF DISCHARGES TABLE: 2 TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* NO.: 08069C0769F NO.: 08069C0982F NO.: 08069C0984H NO.: 08069C0992G NO.: 08069C1001F NO.: 08069C1003G DATE: December 19, 2006 DATE: December 19, 2006 DATE: May 2, 2012 DATE: May 2, 2012 DATE: December 19, 2006 DATE: December 19, 2006 : February 6, 2013 This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Page 5 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: 17-08-1354P LOMR-APP Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) COMMUNITY INFORMATION APPLICABLE NFIP REGULATIONS/COMMUNITY OBLIGATION We have made this determination pursuant to Section 206 of the Flood Disaster Protection Act of 1973 (P.L. 93-234) and in accordance with the National Flood Insurance Act of 1968, as amended (Title XIII of the Housing and Urban Development Act of 1968, P.L. 90-448), 42 U.S.C. 4001-4128, and 44 CFR Part 65. Pursuant to Section 1361 of the National Flood Insurance Act of 1968, as amended, communities participating in the NFIP are required to adopt and enforce floodplain management regulations that meet or exceed NFIP criteria. These criteria, including adoption of the FIS report and FIRM, and the modifications made by this LOMR, are the minimum requirements for continued NFIP participation and do not supersede more stringent State/Commonwealth or local requirements to which the regulations apply. We provide the floodway designation to your community as a tool to regulate floodplain development. Therefore, the floodway revision we have described in this letter, while acceptable to us, must also be acceptable to your community and adopted by appropriate community action, as specified in Paragraph 60.3(d) of the NFIP regulations. NFIP regulations Subparagraph 60.3(b)(7) requires communities to ensure that the flood-carrying capacity within the altered or relocated portion of any watercourse is maintained. This provision is incorporated into your community’s existing floodplain management ordinances; therefore, responsibility for maintenance of the altered or relocated watercourse, including any related appurtenances such as bridges, culverts, and other drainage structures, rests with your community. We may request that your community submit a description and schedule of maintenance activities necessary to ensure this requirement. COMMUNITY REMINDERS We based this determination on the 1-percent-annual-chance discharges computed in the submitted hydrologic model. Future development of projects upstream could cause increased discharges, which could cause increased flood hazards. A comprehensive restudy of your community’s flood hazards would consider the cumulative effects of development on discharges and could, therefore, indicate that greater flood hazards exist in this area. Your community must regulate all proposed floodplain development and ensure that permits required by Federal and/or State/Commonwealth law have been obtained. State/Commonwealth or community officials, based on knowledge of local conditions and in the interest of safety, may set higher standards for construction or may limit development in floodplain areas. If your State/Commonwealth or community has adopted more restrictive or comprehensive floodplain management criteria, those criteria take precedence over the minimum NFIP requirements. We will not print and distribute this LOMR to primary users, such as local insurance agents or mortgage lenders; instead, the community will serve as a repository for the new data. We encourage you to disseminate the information in this LOMR by preparing a news release for publication in your community's newspaper that describes the revision and explains how your community will provide the data and help interpret the NFIP maps. In that way, interested persons, such as property owners, insurance agents, and mortgage lenders, can benefit from the information. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Page 6 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: 17-08-1354P LOMR-APP Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) We have designated a Consultation Coordination Officer (CCO) to assist your community. The CCO will be the primary liaison between your community and FEMA. For information regarding your CCO, please contact: Ms. Jeanine D. Petterson Director, Mitigation Division Federal Emergency Management Agency, Region VIII Denver Federal Center, Building 710 P.O. Box 25267 Denver, CO 80225-0267 (303) 235-4830 STATUS OF THE COMMUNITY NFIP MAPS We will not physically revise and republish the FIRM and FIS report for your community to reflect the modifications made by this LOMR at this time. When changes to the previously cited FIRM panel(s) and FIS report warrant physical revision and republication in the future, we will incorporate the modifications made by this LOMR at that time. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Page 7 of 7 Issue Date: October 9, 2018 Effective Date: February 21, 2019 Case No.: 17-08-1354P LOMR-APP Washington, D.C. 20472 Federal Emergency Management Agency LETTER OF MAP REVISION DETERMINATION DOCUMENT (CONTINUED) PUBLIC NOTIFICATION OF REVISION A notice of changes will be published in the Federal Register. This information also will be published in your local newspaper on or about the dates listed below, and through FEMA’s Flood Hazard Mapping website at https://www.floodmaps.fema.gov/fhm/bfe_status/bfe_main.asp LOCAL NEWSPAPER Name: The Fort Collins Coloradoan Dates: October 17, 2018 and October 24, 2018 Within 90 days of the second publication in the local newspaper, any interested party may request that we reconsider this determination. Any request for reconsideration must be based on scientific or technical data. Therefore, this letter will be effective only after the 90-day appeal period has elapsed and we have resolved any appeals that we receive during this appeal period. Until this LOMR is effective, the revised flood hazard determination presented in this LOMR may be changed. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Table 2 - Summary of Discharges Peak Discharges (cfs) Drainage Area 10-Percent 2-Percent 1-Percent 0.2-Percent Flooding Source and Location (Square Miles) Annual Chance Annual Chance Annual Chance Annual Chance Big Thompson River At Larimer-Weld County Line 595 3,600 7,600 10,000 18,500 At Interstate 25 515 4,300 8,800 11,500 21,000 At County Road 9E 515 4,700 12,300 19,000 44,000 At Railroad Avenue 515 4,700 12,300 19,000 44,000 At Mouth of Canyon (Drake Gage) 535 4,700 12,300 19,000 44,000 At Drake Below North Fork 274 3,700 7,850 10,400 19,200 At Drake Above North Fork 191 2,750 5,700 7,500 13,600 At Lake Estes Below Dry Gulch 156 2,250 3,800 4,700 7,200 At Lake Estes 137.5 1,510 11,990 2,180 2,600 At St. Vrain Avenue 136.9 1,510 11,990 2,180 2,600 At Confluence with Fall River 87.1 980 1,340 1,460 1,760 At Crags Drive in Estes Park 87 980 1,340 1,460 1,760 Black Canyon Creek At Confluence with Big Thompson River 10 130 200 230 310 At Estes Park Corporate Limits 9.3 120 190 210 290 Bobcat Gulch At Confluence with North Fork Big Thompson River 2.73 1,000 1,700 2,050 3,000 Boxelder Creek At Confluence with Cache La Poudre River 102.8 475 801 951 --1 Upstream of Prospect Road 102.3 893 2,418 3,378 --1 At Interstate 25 73.6 543 2,163 2,782 --1 Downstream of Burlington Northern Railroad 72.5 495 2,025 2,617 --1 Upstream of Burlington Northern Railroad 72.4 480 1,944 2,513 --1 Upstream of Larimer and Weld Canal 70.9 669 2,064 2,622 --1 Upstream of County Road 50 70.7 671 3,433 6,646 --1 At County Road 52 67.6 301 602 960 --1 Upstream of divergence of Boxelder Creek 66.8 663 3,411 6,607 --1 Overflow Upstream 1Not Determined REVISED DATA REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 Table 2 - Summary of Discharges (Continued) Peak Discharges (cfs) Drainage Area 10-Percent 2-Percent 1-Percent 0.2-Percent Flooding Source and Location (Square Miles) Annual Chance Annual Chance Annual Chance Annual Chance Boxelder Creek (Continued) At County Road 54 --1 952 3,958 6,978 --1 Downstream of I-25 Near Wellington 24.46 900 1,670 2,140 3,100 Upstream of I-25 Near Wellington 13.86 480 920 1,170 1,690 Upstream of C&S Railroad 12.68 480 900 1,140 1,640 Upstream of Windsor Ditch 10.84 470 850 1,080 1,530 Boxelder Creek Overflow Upstream At Confluence with Boxelder Creek --1 349 2,914 6,047 --1 At County Road 52 --1 351 2,763 5,578 --1 At Divergence from Boxelder Creek --1 358 2,554 4,821 --1 Buckhorn Creek At Confluence with Big Thompson River 142.90 6,844 15,090 20,244 36,000 At Masonville Below Redstone Creek 122.50 6,321 13,593 18,059 32,000 At Masonville Above Redstone Creek 92.00 4,674 10,321 13,862 24,000 Cache La Poudre Lowflow Channel Upstream of Convergence with Cache La Poudre River --1 --1 --1 1,309 --1 At Fossil Creek Ditch Diversion Dam --1 --1 --1 12,071 --1 Cache La Poudre LPath Upstream of Convergence with Cache La Poudre River --1 --1 1,142 3,983 16,015 Cache La Poudre River Downstream of Confluence with Boxelder Creek 1,537 6,750 13,200 17,400 32,400 Upstream of Confluence with Boxelder Creek 1,537 5,820 11,400 15,000 27,900 Downstream of Confluence with Dry Creek --1 6,700 12,700 16,600 30,100 Upstream of Confluence with Dry Creek --1 5,370 10,200 13,300 24,100 1Not Determined REVISED DATA REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 Table 2 - Summary of Discharges (Continued) Peak Discharges (cfs) Drainage Area 10-Percent 2-Percent 1-Percent 0.2-Percent Flooding Source and Location (Square Miles) Annual Chance Annual Chance Annual Chance Annual Chance Cedar Creek At Confluence with Big Thompson River 19.75 2,460 6,530 9,400 20,000 Coal Creek At Town of Wellington 10.6 230 600 830 1,300 Cooper Slough Downstream of Mulberry Street 27.4 127 215 280 --1 Upstream of Mulberry Street 27.2 39 463 767 --1 Downstream of Vine Drive 26.7 45 387 777 --1 Upstream of Vine Drive 26.5 26 351 745 --1 Cooper Slough Overflow At Confluence with Lake Canal --1 568 987 1,267 --1 Dark Gulch At Confluence with Big Thompson River 1.10 560 950 1,250 1,850 Devils Gulch At Confluence with West Creek 0.91 540 900 1,200 1,800 Dickson Gulch At Confluence with Big Thompson River 2.10 970 1,600 1,900 2,650 Dry Creek - BTR At Confluence with Big Thompson River 33.0 3,020 7,465 10,090 17,135 Dry Creek (North of Canal) At Confluence with Larimer and Weld Canal 58.6 221 721 1,098 --1 Dry Creek (South of Canal) At Confluence with Cache La Poudre River 63.3 381 805 1,195 --1 1Not Determined REVISED DATA REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 Table 2 - Summary of Discharges (Continued) Peak Discharges (cfs) Drainage Area 10-Percent 2-Percent 1-Percent 0.2-Percent Flooding Source and Location (Square Miles) Annual Chance Annual Chance Annual Chance Annual Chance Noel’s Draw At Confluence with Big Thompson River 3.41 1,050 1,800 2,200 3,400 North Fork Big Thompson River At Drake Road 83.00 1,500 4,100 6,100 14,100 At Glen Haven Below Devils Gulch 51.00 1,450 3,400 4,400 11,500 Old Dry Creek (Historic Channel) At Confluence with Cache La Poudre River --1 --1 --1 939 --1 Quillan Gulch At Confluence with Big Thompson River 3.01 1,050 1,750 2,100 3,200 Rabbit Gulch At Confluence with Big Thompson River 3.45 1,050 1,800 2,200 3,400 Redstone Creek At Confluence with Buckhorn Creek 30.50 4,187 9,217 12,370 22,500 Sherry Drive Overflow Upstream of Cache La Poudre Reservoir Inlet --1 45 180 282 --1 Cache La Poudre River Split R Path At Confluence with Cache La Poudre River --1 418 1,617 2,427 --1 1Not Determined REVISED DATA REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK A 299 339 902 1.1 4870.0 2 4,868.5 4,868.8 0.3 B 518 175 349 2.7 4870.0 2 4,868.9 4,869.1 0.2 C 907 134 244 3.9 4,870.3 4,870.3 4,870.7 0.4 D 1,125 185 311 3.1 4,874.3 4,874.3 4,874.3 0.0 E 1,633 72 139 6.8 4,875.3 4,875.3 4,875.7 0.4 F 2,068 109 272 3.5 4,878.1 4,878.1 4,878.5 0.4 G 2,724 104 475 2.0 4,880.2 4,880.2 4,880.3 0.1 H 3,375 37 139 6.9 4,883.9 4,883.9 4,884.3 0.4 I 3,670 42 174 5.5 4,885.9 4,885.9 4,885.9 0.0 J 4,179 36 135 7.0 4,888.1 4,888.1 4,888.1 0.0 K 4,639 45 140 6.8 4,891.2 4,891.2 4,891.2 0.0 L 4,984 37 179 5.3 4,892.9 4,892.9 4,892.9 0.0 M 5,756 80 181 5.3 4,896.1 4,896.1 4,896.1 0.0 N 6,329 74 308 3.1 4,898.1 4,898.1 4,898.1 0.0 O 6,477 63 263 3.6 4,898.4 4,898.4 4,898.4 0.0 P 6,592 67 169 5.6 4,898.6 4,898.6 4,898.6 0.0 Q 6,938 30 140 6.8 4,900.5 4,900.5 4,900.6 0.1 R 7,342 259 479 2.0 4,903.7 4,903.7 4,903.7 0.0 S 7,749 212 548 6.2 4,905.2 4,905.2 4,905.4 0.2 T 8,765 220 749 4.5 4,909.7 4,909.7 4,910.0 0.3 U 10,230 242 1,074 3.1 4,913.0 4,913.0 4,913.2 0.2 V 11,055 267 907 3.6 4,913.6 4,913.6 4,914.0 0.4 1 Feet above confleunce with Cache La Poudre River 2 Area controlled by backwater from Cache La Poudre River FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK T A B L E 10 TABLE 4 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK OVERFLOW UPSTREAM A 525 579 3,351 1.8 5,012.9 5,012.9 5,012.9 0.0 B 1,359 272 1,867 3.2 5,013.2 5,013.2 5,013.2 0.0 C 3,007 219 911 6.1 5,015.3 5,015.3 5,015.3 0.0 D 4,066 847 3,389 1.7 5,023.9 5,023.9 5,023.9 0.0 E 4,455 775 1,503 3.7 5,024.0 5,024.0 5,024.0 0.0 F 4,999 407 941 5.9 5,026.5 5,026.5 5,026.8 0.3 G 5,499 620 968 5.0 5,028.6 5,028.6 5,028.7 0.1 H 6,388 350 914 5.3 5,033.5 5,033.5 5,033.9 0.4 I 6,830 880 946 5.1 5,037.9 5,037.9 5,038.0 0.1 1 Feet above confluence with Boxelder Creek FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK OVERFLOW UPSTREAM T A B L E 10 TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK W 11,456 215 1,326 3.5 4,914.3 4,914.3 4,914.8 0.5 X 11,615 370 1,082 9.7 4,916.9 4,916.9 4,916.9 0.0 Y 11,885 542 2,364 5.8 4,919.9 4,919.9 4,919.9 0.0 Z 12,614 423 1,920 1.9 4,920.7 4,920.7 4,920.7 0.0 AA 13,788 185 779 3.6 4,923.0 4,923.0 4,923.0 0.0 AB 14,240 124 398 7.0 4,924.9 4,924.9 4,925.0 0.1 AC 14,654 265 1,128 2.5 4,926.5 4,926.5 4,926.8 0.3 AD 15,197 223 1,445 1.9 4,926.7 4,926.7 4,927.0 0.3 AE 16,719 259 897 3.1 4,929.6 4,929.6 4,929.6 0.0 AF 17,843 130 440 6.3 4,932.1 4,932.1 4,932.1 0.0 AG 18,215 186 740 3.8 4,934.2 4,934.2 4,934.2 0.0 AH 18,626 98 379 7.3 4,935.1 4,935.1 4,935.1 0.0 AI 19,700 293 908 3.1 4,939.1 4,939.1 4,939.6 0.5 AJ 20,841 145 599 4.4 4,940.6 4,940.6 4,940.8 0.2 AK 21,361 122 648 4.0 4,943.0 4,943.0 4,943.3 0.3 AL 22,209 160 733 3.6 4,944.8 4,944.8 4,945.1 0.3 AM 23,323 202 1,521 1.7 4,952.5 4,952.5 4,952.5 0.0 AN 24,074 214 1,392 1.8 4,952.6 4,952.6 4,952.6 0.0 AO 24,499 163 803 3.1 4,952.6 4,952.6 4,952.7 0.1 AP 24,994 58 443 5.7 4,959.1 4,959.1 4,959.6 0.5 AQ 25,692 79 432 5.8 4,962.7 4,962.7 4,962.9 0.2 AR 26,517 128 618 4.1 4,964.3 4,964.3 4,964.7 0.4 1 Feet above confleunce with Cache La Poudre River FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK AS 27,390 115 489 5.1 4,967.4 4,967.4 4,967.8 0.4 AT 28,458 440 1,110 2.3 4,969.7 4,969.7 4,970.0 0.3 AU 28,521 340 1,345 1.9 4,971.9 4,971.9 4,972.3 0.4 AV 28,941 129 652 3.9 4,972.0 4,972.0 4,972.5 0.5 AW 29,436 142 550 4.6 4,972.8 4,972.8 4,973.2 0.4 AX 29,694 107 455 5.5 4,973.3 4,973.3 4,973.6 0.3 AY 31,128 1,154 1,248 2.0 4,976.8 4,976.8 4,977.0 0.2 AZ 31,202 266 384 6.8 4,977.7 4,977.7 4,978.1 0.4 BA 31,785 317 908 2.9 4,979.9 4,979.9 4,980.2 0.3 BB 32,785 344 1,399 2.5 4,981.9 4,981.9 4,982.3 0.4 BC 33,485 135 385 6.8 4,985.4 4,985.4 4,985.6 0.2 BD 33,985 210 640 4.1 4,987.5 4,987.5 4,987.9 0.4 BE 35,585 251 688 3.8 4,990.8 4,990.8 4,991.3 0.5 BF 35,735 114 1,222 5.6 4,990.8 4,990.8 4,991.3 0.5 BG 36,225 1,569 17,398 0.2 5,012.8 5,012.8 5,012.8 0.0 BH 36,372 975 15,404 0.4 5,012.8 5,012.8 5,012.8 0.0 BI 36,947 652 10,547 0.6 5,012.8 5,012.8 5,012.8 0.0 BJ 37,295 807 11,935 0.6 5,012.8 5,012.8 5,012.8 0.0 BK 37,340 862 12,548 0.5 5,012.8 5,012.8 5,012.8 0.0 BL 38,368 1,272 17,597 0.4 5,012.8 5,012.8 5,012.8 0.0 BM 38,806 1,156 15,414 0.4 5,012.8 5,012.8 5,012.8 0.0 BN 39,280 1,015 9,025 0.7 5,012.8 5,012.8 5,012.8 0.0 1 Feet above confleunce with Cache La Poudre River FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) CACHE LA POUDRE RIVER SPLIT RPATH A 940 299 1,147 2.1 4882.2 2 4,880.0 4,880.0 0.0 B 2,032 137 483 5.0 4,892.9 4,892.9 4,893.4 0.5 C 2,452 165 816 3.0 4,895.7 4,895.7 4,896.1 0.4 D 3,025 161 600 4.0 4,897.1 4,897.1 4,897.2 0.1 E 3,714 111 493 5.7 4,900.9 4,900.9 4,900.9 0.0 F 4,013 115 434 5.6 4,902.3 4,902.3 4,902.3 0.0 1 Feet above Gravel Pit Access Road 2 Area controlled by backwater from Cache La Poudre River FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA CACHE LA POUDRE RIVER SPLIT RPATH T A B L E 10 TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) COOPER SLOUGH A 18 116 97 4.2 4,921.3 4,921.3 4,921.4 0.1 B 348 70 107 2.6 4,923.1 4,923.1 4,923.6 0.5 C 598 38 74 3.8 4,924.8 4,924.8 4,924.8 0.0 D 1,748 183 707 1.1 4,930.5 4,930.5 4,930.8 0.3 E 2,198 90 230 3.3 4,930.7 4,930.7 4,930.9 0.2 F 3,088 290 904 0.9 4,937.7 4,937.7 4,938.2 0.5 G 3,397 329 515 1.5 4,939.1 4,939.1 4,939.2 0.1 H 4,090 733 291 2.6 4,940.0 4,940.0 4,940.1 0.1 I 4,688 492 469 1.6 4,942.0 4,942.0 4,942.2 0.2 J 4,743 591 1,903 0.4 4,945.6 4,945.6 4,945.8 0.2 K 5,347 136 307 2.5 4,945.7 4,945.7 4,945.9 0.2 L 7,112 262 290 2.7 4,953.6 4,953.6 4,954.0 0.4 M 7,724 79 125 6.2 4,956.9 4,956.9 4,957.0 0.1 N 7,842 298 755 1.0 4,960.2 4,960.2 4,960.7 0.5 O 9,342 90 177 4.2 4,962.1 4,962.1 4,962.6 0.5 P 10,142 102 182 4.1 4,969.1 4,969.1 4,969.3 0.2 Q 10,382 48 97 7.7 4,972.2 4,972.2 4,972.3 0.1 R 10,454 168 686 1.1 4,975.5 4,975.5 4,975.6 0.1 S 10,742 346 1,274 0.6 4,975.5 4,975.5 4,975.7 0.2 1 Feet above confluence with Lake Canal FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA COOPER SLOUGH T A B L E 10 TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) SHERRY DRIVE OVERFLOW A 0 103 63 4.5 4,916.9 4,916.9 4,916.9 0.0 B 557 54 52 5.5 4,917.5 4,917.5 4,918.0 0.5 C 832 446 91 3.1 4,920.5 4,920.5 4,920.6 0.1 1 Feet above Cache La Poudre Reservior Inlet Ditch FLOODWAY DATA SHERRY DRIVE OVERFLOW FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS T A B L E 10 TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) COOPER SLOUGH OVERFLOW A 155 282 248 5.1 4,916.9 4,916.9 4,917.1 0.2 B 585 362 474 3.0 4,918.9 4,918.9 4,919.4 0.5 C 1,289 463 418 3.3 4,920.6 4,920.6 4,921.1 0.5 D 1,885 161 493 6.2 4,923.6 4,923.6 4,924.0 0.4 E 2,573 568 311 4.1 4,928.3 4,928.3 4,928.3 0.0 1 Feet above confluence with Lake Canal FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA COOPER SLOUGH OVERFLOW T A B L E 10 TABLE 4 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK I-25 SPLIT A 500 254 784 5.4 4,874.7 4,874.7 4,875.0 0.3 B 1,500 639 2,012 2.1 4,876.4 4,876.4 4,876.9 0.5 C 3,100 1,340 2,141 2.0 4,880.2 4,880.2 4,880.5 0.3 D 4,714 1,700 2,335 1.8 4,886.3 4,886.3 4,886.7 0.4 E 5,956 1,420 1,545 2.7 4,888.6 4,888.6 4,888.9 0.3 F 6,799 1,174 2,116 2.0 4,890.5 4,890.5 4,890.6 0.1 G 7,794 450 1,222 3.3 4,893.6 4,893.6 4,893.8 0.2 H 8,790 525 1,501 2.7 4,896.2 4,896.2 4,896.7 0.5 I 9,854 378 1,093 3.7 4,899.4 4,899.4 4,899.8 0.4 J 10,347 169 388 7.1 4,904.5 4,904.5 4,904.5 0.0 K 11,181 981 4,990 0.7 4,905.8 4,905.8 4,905.8 0.0 L 11,845 695 1,115 3.8 4,905.8 4,905.8 4,905.8 0.0 M 12,589 200 807 5.2 4,906.8 4,906.8 4,907.3 0.5 N 13,410 250 520 8.1 4,911.3 4,911.3 4,911.6 0.3 O 13,977 830 1,835 2.3 4,912.7 4,912.7 4,913.2 0.5 P 14,426 550 677 6.2 4,913.9 4,913.9 4,914.2 0.3 Q 15,782 1,227 2,426 1.7 4,918.2 4,918.2 4,918.7 0.5 R 16,452 446 635 6.6 4,920.9 4,920.9 4,920.9 0.0 1Feet above Larimer County Road 5 TABLE 4 FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK I-25 SPLIT REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK I-25 SPLIT OVERFLOW A 544 547 947 1.6 4,900.3 4,900.3 4,900.8 0.5 B 1,504 155 145 5.5 4,904.1 4,904.1 4,904.1 0.0 1Feet above confluence with Boxelder Creek I-25 Split TABLE 4 FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK I-25 SPLIT OVERFLOW REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 FLOODING SOURCE FLOODWAY 1-PERCENT ANNUAL CHANCE FLOOD WATER SURFACE ELEVATION CROSS SECTION DISTANCE1 WIDTH (FEET) SECTION AREA (SQUARE FEET) MEAN VELOCITY (FEET PER SECOND) REGULATORY (FEET NAVD) WITHOUT FLOODWAY (FEET NAVD) WITH FLOODWAY (FEET NAVD) INCREASE (FEET) BOXELDER CREEK OVERFLOW - DOWNSTREAM A 982 134 78 4.3 4,936.8 4,936.8 4,936.9 0.1 B 2,141 529 311 4.3 4,938.3 4,938.3 4,938.3 0.0 C 3,994 675 2,704 0.7 4,938.6 4,938.6 4,938.6 0.0 D 4,996 200 400 5.0 4,943.0 4,943.0 4,943.1 0.1 E 6,014 308 1,112 2.1 4,950.3 4,950.3 4,950.8 0.5 F 6,993 254 553 4.2 4,956.7 4,956.7 4,957.2 0.5 G 7,924 195 513 3.6 4,961.1 4,961.1 4,961.6 0.5 H 8,482 452 385 4.8 4,970.2 4,970.2 4,970.2 0.0 I 10,558 308 1,163 2.1 4,973.5 4,973.5 4,974.0 0.5 J 11,263 484 841 2.9 4,974.6 4,974.6 4,974.9 0.3 1Feet above confluence with Boxelder Creek TABLE 4 FEDERAL EMERGENCY MANAGEMENT AGENCY LARIMER COUNTY, CO AND INCORPORATED AREAS FLOODWAY DATA BOXELDER CREEK OVERFLOW - DOWNSTREAM REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 163P 289P (a) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 319P REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 320P REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 321P REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 322P REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 JOINS PANEL 0982 105°00'00" JOINS PANEL 0788 40°37'30" ¦¨§25 INTERSTATE 25 FRONTAGE RD 4498000mN Unincorporated Larimer County Areas 080101 27 28 REVISED AREA City of 080102 Fort Collins FLOODING EFFECTS FROM BOXELDER CREEK OVERFLOW UPSTREAM ZONE AE NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 8 NORTH, RANGE 68 WEST. %, D 5023.9 LARIMER and Incorporated COUNTY, Areas COLORADO 1.1.1.0 08069C0769F DECEMBER 19, 2006 FORT LARIMEROF COLLINS, COUNTY CITY 008800110012 00776699 FF 769 1420 FEMA National Flood Insurance Program Without Zone A, V, A99 Base Flood Elevation (BFE) With BFE or Depth Zone AE, AO, AH, VE, AR SPECIAL FLOOD Regulatory Floodway HAZARD AREAS 0.of 2 1% % annual Annual chance Chance flood Flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Zone X Future Chance Conditions Flood Hazard 1% Annual Zone X Area See Notes. with Reduced Zone X Flood Risk due to Levee OTHER FLOOD AREAS HAZARD OF NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP Panel Contains: FEMA COMMUNITY NUMBER PANEL SUFFIX PANEL OF VERSION NUMBER MAP NUMBER 0 62.5 125 250 Meters SCALMaEp Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 0 250 500 1,000 Feet 1 inch = 500 feet 1:6,000 EFFECTIVE DATE REVISED TO ) ) ) ) ZONE AE ZONE AE Boxelder Creek ZONE AE ZONE AE JOINS PANEL 1001 501000mE 1475000 FT JOINS PANEL 0769 COUNTY ROAD 54 5026.6 5032.5 5024.3 5036.7 5037.7 5050.7 5044.7 5050.0 5043.2 5047.4 5038.9 %, BU %, BV %, BT %,BW %, BX %, CD %, CA %, CC %, BZ %, CB %, BY Larimer County Ditch Boxelder Creek UOpvsetrrfeloawm Boxelder Creek 105°00'00" NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 8 NORTH, RANGE 68 WEST. 40°37'30" Unincorporated Larimer County Areas 080101 27 22 REVISED AREA PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER EFFECTIVE DATE 1.1.1.0 08069C0982F DECEMBER 19, 2006 NOTES TO USERS FEMA National Flood Insurance Program FEMA FORT LARIMER COLLINS, COUNTY CITY OF County Name SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080102 080101 0982 0982 FF Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins 8 9 32 4 27 3 33 10 29 28 5 34 GLENLYON CT CULLEN CT DRIVE COURT ELGIN PL VINE DRIVE GLENBARR C ITY OF FORT COLLINS LOCHSIDE LANE PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER EFFECTIVE DATE 1.1.1.0 08069C0984H MAY 2, 2012 NOTES TO USERS FEMA National Flood Insurance Program FEMA LARIMER FORT COLLINS, COUNTY CITY OF County Name SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080101 080102 0984 0984 HH ) ) ) ) ) ) ) ) ) ) ) ) Larimer County Unincorporated 080101 Areas Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins City of 080102 Fort Collins City of 080102 Fort Collins City of 080102 Fort Collins 22 8 9 20 16 17 10 15 21 COUNTRYSIDE DR GREENBRIAR ANNABEL AVE PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER MAP REVISED 1.1.1.0 08069C0992G MAY 2, 2012 NOTES TO USERS FEMA National Flood Insurance Program FEMA LARIMER FORT COLLINS, COUNTY CITY OF County Name SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080101 080102 0992 0992 GG ) ) ) ) ZONE AE ZONE A ZONE A ZONE AE ZONE AE ZONE AE ZONE AE ZONE AE ZONE AE 105°00'00" 40°33'45.0" 4490000mN ZONE AE ZONE AE 4489000mN RIVERBEND CT LANE %, AQ GRAND 499000mE DRIVE 1440000 FT BRYCE DRIVE CUSTER DRIVE %, AP ANIKA DRIVE HALFLINGER DR SWANSTONE DR JEWELSTONE CT CANTON CT 105°01'52.5" PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER EFFECTIVE DATE 1.1.1.0 08069C1001F DECEMBER 19, 2006 NOTES TO USERS FEMA National Flood Insurance Program FEMA FORT LARIMER COLLINS, COUNTY CITY OF County Name SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080102 080101 1001 1001 FF Unincorporated Larimer County Areas 080101 TRAIL POINT ELK RANCH LN Unincorporated Larimer County Areas 080101 SALMON RUN FRONTAGE INTERSTATE ROAD 25 JAYHAWK DRIVE COHO RUN TRAPPERS POINT COUNTY ROAD 5 COUNTY ROAD 52 COUNTY ROAD 50 NOTE: MAP RANGE AREA SHOWN 68 WEST ON AND THIS TOWNSHIP PANEL IS LOCATED 8 NORTH, RANGE WITHIN TOWNSHIP 68 WEST. 7 NORTH, C OUNTY ROAD 48 11 2 27 3 26 10 34 35 Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins North Reservoir Gray Bo x el d e r C PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER MAP REVISED 1.1.1.0 08069C1003G MAY 2, 2012 NOTES TO USERS FEMA National Flood Insurance Program FEMA LARIMER FORT COLLINS, COUNTY CITY OF County Name SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080101 080102 1003 1003 GG Unincorporated Larimer County Areas 080101 Unincorporated Larimer Cunty Areas 080101 City Collins of Fort 080102 City of 080102 Fort Collins 22 11 23 10 15 14 3140000 FT Unincorporated Larimer Cunty Areas 080101 ASPEN CIRCLE PINON CIRCLE RACHEL COURT FRONTAGE ROAD REBECCA COURT SOL CT L A NE CAREFREE DRIVE 500000mE FORELOCK DRIVE PALLAANMEINO C O A CHM A N L PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER EFFECTIVE DATE 1.1.1.0 08069C1011F DECEMBER 19, 2006 NOTES TO USERS FEMA National Flood Insurance Program FEMA FORT LARIMER COLLINS, COUNTY CITY OF County Name TIMNATH, TOWN OF SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080102 080101 080005 1011 1011 1011 FF F ¦¨§25 %,AR REVISED AREA ZONE AE Timnath Reservoir %, AL NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 7 NORTH, RANGE 68 WEST. ZONE AE ZONE AE Unincorporated Larimer County Areas 080101 40°31'52.5" 4490000mN 40°33'45" 4488000mN 3145000 FT CAREFREE DRIVE ENCHDARNIVTEMENT 4489000mN FIFTH AVENUE AREA EFFECTIVE: REVISED JUNE BY 18, LOMR 2012 A RBEE LANE BRIDLE DRIVE STABLE LANE MAIN STREET COUNTY ROAD 42E ¤£87 104°58'07.5" MCLAUGHLIN LN ZONE AE ZONE AE ZONE AE NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 6 NORTH, RANGE 68 WEST AND TOWNSHIP 7 NORTH, RANGE 68 WEST. JOINS PANEL 1014 4486000mN THIRD AVE 104°58'07.5" LARIMER COUNTY DIXON STREET COUNTY ROAD 3F 40°31'52.5" MAIN STREET/COUNTY ROAD 5 FOURTH AVENUE COUNTY ROAD 38 BURLINGTON NORTHERN RAILROAD AREA LOMR REVISED EFFECTIVE: BY JUNE 18, 2012 T.6 N. AREA LOMR REVISED EFFECTIVE: BY NOVEMBER 14, 2008 TOWN OF TIMNATH T.7 N. LARIMER COUNTY %, AA %, Z %, AH %, AG %, AF %, AE %, AC %, AD %, AB Poudre Cache River La TOWN OF TIMNATH 4841 4844 4843 4835 4832 4831 4833 4835 4834 4843 4836 4837 4839 PANEL LOCATOR NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP LARIMER COUNTY, COLORADO Panel Contains: COMMUNITY NUMBER PANEL SUFFIX VERSION NUMBER MAP NUMBER EFFECTIVE DATE 1.1.1.0 08069C1014F DECEMBER 19, 2006 NOTES TO USERS FEMA National Flood Insurance Program FEMA LARIMER TIMNATH, COUNTY TOWN OF County Name SCALE Map Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 FLOOD HAZARD INFORMATION 080101 080005 1014 1014 FF ZONE AE 104°58'07.5" Poudre Cache River La 1430000 FT 4485000mN FAOVEUNRUTEH 4486000mN Unincorporated Larimer County Areas 080101 40°31'52.5" 40°30'00" 40°31'52.5" 3150000 FT 104°56'15" 3155000 FT BURLINGTON NORTHERN RAILROAD 1435000 FT Unincorporated Larimer County Areas 080101 Town 080005 of Timnath 503000mE504000mE %, T %, P %, R Poudre Cache River La NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 6 NORTH, RANGE 68 WEST AND TOWNSHIP 7 NORTH, RANGE 68 WEST. Greeley Canal Number 2 P RIVATE DRIVE REVISED AREA C ZONE AE TOWN OF TIMNATH WELD COUNTY JOINS PANEL 1014 104°56'15" JOINS PANEL 1206 PRIVATE DRIVE %, L Greeley Number 2 Canal R.68 W. 4483000mN 40°30'00" 4482000mN 3155000 FT 4805 4806 4804 Town 080005 of Timnath Unincorporated Larimer County Areas 080101 13 12 REVISED AREA LARIMER COUNTY LARIMER COUNTY LIMIT OF DETAILED STUDY NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 6 NORTH, RANGE 68 WEST. FLOODING EFFECTS FROM CACHE LA POUDRE RIVER LARIMER and Incorporated COUNTY, Areas COLORADO 1.1.1.0 08069C1202F DECEMBER 19, 2006 LARIMER TIMINATH,COUNTY TOWN OF WINDSOR, TOWN OF 008800010051 080264 11220022 1202 FF F 1202 1420 FEMA National Flood Insurance Program Without Zone A, V, A99 Base Flood Elevation (BFE) With BFE or Depth Zone AE, AO, AH, VE, AR SPECIAL FLOOD Regulatory Floodway HAZARD AREAS 0.of 2 1% % annual Annual chance Chance flood Flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Zone X Future Chance Conditions Flood Hazard 1% Annual Zone X Area See Notes. with Reduced Zone X Flood Risk due to Levee OTHER FLOOD AREAS HAZARD OF NATIONAL FLOOD INSURANCE PROGRAM 10 APPENDIX C 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Rainfall Intensity TIME 2 YR 10 YR 100 YR 5 2.85 4.87 9.95 6 2.67 4.56 9.31 7 2.52 4.31 8.80 8 2.40 4.10 8.38 9 2.30 3.93 8.03 10 2.21 3.78 7.72 11 2.13 3.63 7.42 12 2.05 3.50 7.16 13 1.98 3.39 6.92 14 1.92 3.29 6.71 15 1.87 3.19 6.52 20 1.61 2.74 5.60 25 1.43 2.44 4.98 30 1.30 2.21 4.52 40 1.07 1.83 3.74 50 0.92 1.58 3.23 60 0.82 1.40 2.86 120 0.49 0.86 1.84 Note: Time Intensity Frequency Tabulation Intensity values from the City of Fort Collins Intensity-Duration-Frequency Tables; Chapter 5, Section 3.4 of the Fort Collins Stormwater Criteria Manual, 2018 Edition. K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Imperviousness and Runoff Coefficient Calculations Basin A Area (sf) Basin % I C2 C 10 C100 Landscaped Area 551 11% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 0 0% 90% 0.95 0.95 1.00 Streets (Paved) 4,286 89% 100% 0.95 0.95 1.00 4,837 100% 89% 0.86 0.86 0.91 Basin B Area (sf) Basin % I C2 C 10 C100 Landscaped Area 7,791 34% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 4,115 18% 90% 0.95 0.95 1.00 Streets (Paved) 10,857 48% 100% 0.95 0.95 1.00 22,763 100% 65% 0.69 0.69 0.74 Basin B1 Area (sf) Basin % I C2 C 10 C100 Landscaped Area 317 3% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 1,324 14% 90% 0.95 0.95 1.00 Streets (Paved) 7,689 82% 100% 0.95 0.95 1.00 9,330 100% 95% 0.92 0.92 0.97 Basin C Area (sf) Basin % I C2 C 10 C100 Landscaped Area 1,172 18% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 611 9% 90% 0.95 0.95 1.00 Streets (Paved) 4,698 72% 100% 0.95 0.95 1.00 6,481 100% 81% 0.81 0.81 0.86 Basin D Area (sf) Basin % I C2 C 10 C100 Landscaped Area 2,705 13% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 1,904 9% 90% 0.95 0.95 1.00 Streets (Paved) 16,293 78% 100% 0.95 0.95 1.00 20,902 100% 86% 0.85 0.85 0.90 Basin D1 Area (sf) Basin % I C2 C 10 C100 Landscaped Area 427 5% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 1,283 16% 90% 0.95 0.95 1.00 Streets (Paved) 6,269 79% 100% 0.95 0.95 1.00 7,979 100% 93% 0.91 0.91 0.96 Basin E Area (sf) Basin % I C2 C 10 C100 Landscaped Area 3,090 100% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 0 0% 90% 0.95 0.95 1.00 Streets (Paved) 0 0% 100% 0.95 0.95 1.00 3,090 100% 2% 0.20 0.20 0.25 Basin R1 Area (sf) Basin % I C2 C 10 C100 Landscaped Area 0 0% 2% 0.20 0.20 0.25 Roofs 12,590 100% 90% 0.95 0.95 1.00 Drive and Walks 0 0% 90% 0.95 0.95 1.00 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF 34,945 100% 2% 0.20 0.20 0.25 Notes: 1. Imperviousness, I, values per UDFCD Criteria Manual Volume 1, Table 6-3 2. Runoff Coefficient values are from the City of Fort Collins Runoff Coefficient Tables 3.2-2 and 3.2-3; Chapter 5, Section 3.2 of the Fort Collins Stormwater Criteria Manual, 2018 Edition. K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Time of Concentration (2-Year and 10-Year Design Storms) A A 4,837 0.11 89% 0.86 51 2.3% 11.1 66 1.7% 0.195 5.0 0.2 11.3 117 10.7 10.7 B B 22,763 0.52 65% 0.69 46 3.6% 15.6 382 0.7% 0.195 3.3 1.9 17.5 428 12.4 12.4 B1 B1 9,330 0.21 95% 0.92 45 2.7% 7.3 144 0.6% 0.195 2.9 0.8 8.1 189 11.1 8.1 C C 6,481 0.15 81% 0.81 70 2.6% 15.2 63 1.5% 0.195 4.7 0.2 15.4 133 10.7 10.7 D D 20,902 0.48 86% 0.85 50 3.2% 10.3 325 0.7% 0.195 3.2 1.7 12.0 375 12.1 12.0 D1 D1 7,979 0.18 93% 0.91 45 2.7% 7.9 135 0.6% 0.195 2.9 0.8 8.7 180 11.0 8.7 E E 3,090 0.07 2% 0.20 26 10.4% 18.3 0 0.0% 0.195 0.0 0.0 18.3 26 10.1 10.1 R1 R1 12,590 0.29 90% 0.95 0 0.0% 0.0 0 0.0% 0.195 0.0 0.0 5.0 0 10.0 5.0 OS1 OS1 34,945 0.80 2% 0.20 50 10.4% 25.3 0 0.0% 0.195 0.0 0.0 25.3 50 10.3 10.3 TOTAL 122,917 2.82 DESIGN TC (2-YR) INITIAL / OVERLAND TIME TI Velocity (FPS) TT T C LENGTH (FT) L/180+10 TRAVEL TIME TT URBANIZED BASIN CHECK TC LENGTH (FT) Slope (%) TI LENGTH (FT) Slope (%) R C2/10 SUB-BASIN DATA DESIGN POINT DRAIN BASIN AREA (SF) AREA (AC) RUNOFF COEFFICIENT I (%) 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Time of Concentration (2-Year and 10-Year Design Storms) A A 4,837 0.11 89% 0.91 51 2.3% 8.7 66 1.7% 0.195 5.0 0.2 8.9 117 10.7 8.9 B B 22,763 0.52 65% 0.74 46 3.6% 13.7 382 0.7% 0.195 3.3 1.9 15.6 428 12.4 12.4 B1 B1 9,330 0.21 95% 0.97 45 2.7% 5.2 144 0.6% 0.195 2.9 0.8 6.0 189 11.1 6.0 C C 6,481 0.15 81% 0.86 70 2.6% 12.5 63 1.5% 0.195 4.7 0.2 12.7 133 10.7 10.7 D D 20,902 0.48 86% 0.90 50 3.2% 8.2 325 0.7% 0.195 3.2 1.7 9.9 375 12.1 9.9 D1 D1 7,979 0.18 93% 0.96 45 2.7% 5.8 135 0.6% 0.195 2.9 0.8 6.6 180 11.0 6.6 E E 3,090 0.07 2% 0.25 26 10.4% 17.2 0 0.0% 0.195 0.0 0.0 17.2 26 10.1 10.1 R1 R1 12,590 0.29 90% 1.00 0 0.0% 0.0 0 0.0% 0.195 0.0 0.0 5.0 0 10.0 5.0 OS1 OS1 34,945 0.80 2% 0.25 50 10.4% 23.9 0 0.0% 0.195 0.0 0.0 23.9 50 10.3 10.3 TOTAL 122,917 2.82 Slope L/180+10 (%) R Velocity (FPS) TT T C LENGTH (FT) I (%) C100 LENGTH (FT) Slope (%) TI LENGTH (FT) SUB-BASIN DATA RUNOFF COEFFICIENT INITIAL / OVERLAND TIME TI TRAVEL TIME TT URBANIZED BASIN CHECK TC DESIGN DESIGN TC (2-YR) POINT DRAIN BASIN AREA (SF) AREA (AC) 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Runoff Calculations 2-Year Design Storm Runoff Calculations (Rational Method Procedure) A A 0.11 0.86 10.7 0.10 2.15 0.21 B B 0.52 0.69 12.4 0.36 2.02 0.73 B1 B1 0.21 0.92 8.1 0.20 2.39 0.47 C C 0.15 0.81 10.7 0.12 2.15 0.26 D D 0.48 0.85 12.0 0.41 2.05 0.84 D1 D1 0.18 0.91 8.7 0.17 2.33 0.39 E E 0.07 0.20 10.1 0.01 2.20 0.03 R1 R1 0.29 0.95 5.0 0.27 2.85 0.78 OS1 OS1 0.80 0.20 10.3 0.16 2.19 0.35 TOTAL 2.82 4.06 REMARKS BASIN INFORMATON TOTAL RUNOFF DESIGN POINT DIRECT RUNOFF I (IN/HR) ∑ C*A C2 TC DRAIN BASIN Q (CFS) I (IN/HR) ∑ C*A TC Q (CFS) AREA (AC) K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Runoff Calculations 10-Year Design Storm Runoff Calculations (Rational Method Procedure) A A 0.11 0.86 10.7 0.10 3.68 0.35 B B 0.52 0.69 12.4 0.36 3.46 1.25 B1 B1 0.21 0.92 8.1 0.20 4.08 0.81 C C 0.15 0.81 10.7 0.12 3.68 0.45 D D 0.48 0.85 12.0 0.41 3.50 1.43 D1 D1 0.18 0.91 8.7 0.17 3.98 0.66 E E 0.07 0.20 10.1 0.01 3.77 0.05 R1 R1 0.29 0.95 5.0 0.27 4.87 1.34 OS1 OS1 0.80 0.20 10.3 0.16 3.74 0.60 TOTAL 2.82 6.94 I (IN/HR) ∑ C*A I (IN/HR) Q (CFS) TC ∑ C*A DIRECT RUNOFF Q (CFS) BASIN INFORMATON TOTAL RUNOFF DESIGN REMARKS POINT DRAIN BASIN AREA (AC) C10 TC K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Runoff Calculations 100-Year Design Storm Runoff Calculations (Rational Method Procedure) A A 0.11 0.91 8.9 0.10 8.06 0.82 B B 0.52 0.74 12.4 0.39 7.06 2.74 B1 B1 0.21 0.97 6.0 0.21 9.29 1.94 C C 0.15 0.86 10.7 0.13 7.51 0.97 D D 0.48 0.90 9.9 0.43 7.76 3.36 D1 D1 0.18 0.96 6.6 0.18 9.02 1.59 E E 0.07 0.25 10.1 0.02 7.69 0.14 R1 R1 0.29 1.00 5.0 0.29 9.95 2.88 OS1 OS1 0.80 0.25 10.3 0.20 7.63 1.53 TOTAL 2.82 0.69 15.97 I (IN/HR) ∑ C*A I (IN/HR) Q (CFS) TC ∑ C*A DIRECT RUNOFF Q (CFS) BASIN INFORMATON TOTAL RUNOFF DESIGN REMARKS POINT DRAIN BASIN AREA (AC) C100 TC K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 0969813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Imperviousness and Runoff Coefficient Summary A A 0.11 4% 89% 3.5% 0.10 0.86 0.86 0.91 B B 0.52 19% 65% 12.0% 0.34 0.69 0.69 0.74 B1 B1 0.21 8% 95% 7.2% 0.20 0.92 0.92 0.97 C C 0.15 5% 81% 4.3% 0.12 0.81 0.81 0.86 D D 0.48 17% 86% 14.7% 0.41 0.85 0.85 0.90 D1 D1 0.18 6% 93% 6.0% 0.17 0.91 0.91 0.96 E E 0.07 3% 2% 0.1% 0.00 0.20 0.20 0.25 R1 R1 0.29 10% 90% 9.2% 0.26 0.95 0.95 1.00 OS1 OS1 0.80 28% 2% 0.6% 0.02 0.20 0.20 0.25 2.82 100% 57.6% 1.62 I (%) WEIGHTED (%) TOTAL Impervious Area (Ac) C2 C 10 C100 DESIGN POINT DRAIN BASIN AREA (AC) % of Site (%) K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 096813000 Woodsprings Suites Fort Collins, CO 3/26/2019 Prepared By: MBW Checked By: EPF Proposed Direct Runoff Summary A A 0.11 0.21 0.35 0.82 B B 0.52 0.73 1.25 2.74 B1 B1 0.21 0.47 0.81 1.94 C C 0.15 0.26 0.45 0.97 D D 0.48 0.84 1.43 3.36 D1 D1 0.18 0.39 0.66 1.59 E E 0.07 0.03 0.05 0.14 R1 R1 0.29 0.78 1.34 2.88 OS1 OS1 0.80 0.35 0.60 1.53 2.82 4.06 6.94 15.97 Standard Rational Method Q100 (CFS) Q2 (CFS) DESIGN POINT DRAIN BASIN AREA (AC) Q10 (CFS) K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls 11 APPENDIX D FORT COLLINS, COLORADO 847 SE FRONTAGE ROAD WOODSPRINGS SUITES FOR REVIEW ONLY NOT FOR Kimley-Horn and Associates, Inc. CONSTRUCTION OF 13 LEGEND PROPOSED DIRECT RUNOFF SUMMARY 6 DRAINAGE PLAN NORTH SOUTHEAST FRONTAGE ROAD (PRIVATE) INTERSTATE 1-25 12 APPENDIX E Streets (Paved) 0 0% 100% 0.95 0.95 1.00 12,590 100% 90% 0.95 0.95 1.00 Basin OS1 Area (sf) Basin % I C2 C 10 C100 Landscaped Area 34,945 100% 2% 0.20 0.20 0.25 Roofs 0 0% 90% 0.95 0.95 1.00 Drive and Walks 0 0% 90% 0.95 0.95 1.00 Streets (Paved) 0 0% 100% 0.95 0.95 1.00 K:\DEN_Civil\096813000_WoodSprings FoCo\_Project Files\Eng\Drainage\Calcs\CIA Calculations-096813000.xls FLOOD INSURANCE RATE MAP Panel Contains: FEMA COMMUNITY NUMBER PANEL SUFFIX PANEL OF VERSION NUMBER MAP NUMBER 0 60 120 240 Meters SCALMaEp Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 0 250 500 1,000 Feet 1 inch = 500 feet 1:6,000 EFFECTIVE DATE REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 OUNTY LINE ROAD 104°58'07.5" Unincorporated Larimer County Areas 080101 4817 4818 4820 4819 Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 Town 080005 of Timnath Town 080005 of Timnath Town 080005 of Timnath Unincorporated Larimer County Areas 080101 2 11 12 35 36 1 REVISED AREA 505000mE 104°56'15" 40°30'00" WELD COUNTY LARIMER COUNTY R.68 W. LARIMER COUNTY TOWN OF TIMNATH LARIMER COUNTY TOWN OF TIMNATH TOWN OF TIMNATH WELD COUNTY R.68 W. TOWN OF TIMNATH LARIMER COUNTY 4484000mN T.7 N. T.6 N. %, Q 4821 %, S 0 125 250 500 PANEL 1014 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 1202 1011 1201 1012 1013 1014 *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 Unincorporated Larimer County Areas 080101 Town 080005 of Timnath Unincorporated Larimer County Areas 080101 2 3 35 34 REVISED AREA M STREET AIN J OINS PANEL 1011 LARIMER and Incorporated COUNTY, Areas COLORADO 1.1.1.0 08069C1013F DECEMBER 19, 2006 FORT LARIMEROF COLLINS, COUNTY CITY TIMNATH, TOWN OF 008800110012 080005 11001133 1013 FF F 1013 1420 FEMA National Flood Insurance Program Without Zone A, V, A99 Base Flood Elevation (BFE) With BFE or Depth Zone AE, AO, AH, VE, AR SPECIAL FLOOD Regulatory Floodway HAZARD AREAS 0.of 2 1% % annual Annual chance Chance flood Flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Zone X Future Chance Conditions Flood Hazard 1% Annual Zone X Area See Notes. with Reduced Zone X Flood Risk due to Levee OTHER FLOOD AREAS HAZARD OF NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP Panel Contains: FEMA COMMUNITY NUMBER PANEL SUFFIX PANEL OF VERSION NUMBER MAP NUMBER 0 60 120 240 Meters SCALMaEp Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 0 250 500 1,000 Feet 1 inch = 500 feet 1:6,000 EFFECTIVE DATE REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 COUNTY ROAD 5 COUNTY ROAD 3E FRONTAGE ROAD COUNTY ROAD 40 4487000mN COUNTY ROAD 5 BURLINGTON NORTHERN RAILROAD LARIMER COUNTY Unincorporated Larimer County Areas 080101 Timnath Town of 080005 COUNTY ROAD 40 Poudre Cache River La % , AO TOWN OF TIMNATH %, AJ %, AM %, AK %, AQ %, AP %, AN Lake Canal I-25 Boxelder Split Overflow Creek Poudre Cache River La Cache La Poudre Reservoir Inlet Cache La Poudre River Lake Canal 4854 4861 4852 4866 4845 4864 4847 4861 4860 4865 4859 4858 4849 4857 4855 4856 Unincorporated Larimer County Areas 080101 Town 080005 of Timnath Unincorporated Larimer County Areas 080101 City Collins of Fort 080102 City of 080102 Fort Collins 22 27 35 23 26 34 REVISED AREA 105°00'00"501000mE502000mE 104°58'07.5" 40°31'52.5" 1440000 FT 1455000 FT 40°33'45" 105°00'00" 3140000 FT 0 125 250 500 PANEL 1011 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 0994 1014 0992 1012 1013 0984 1003 1011 LCaoruimnetyr *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 N BOULDER AVE I-25 FRONTAGE ROAD 105°00'00" LOMA LINDA DR 104°58'07.5" S H E T L A ND HESSEN DRIVE BOXELDER STREET NORIKER DRIVE PLEASURE DRIVE FRISIAN DRIVE SPRUCE LANE 40°33'45.0" SIERRA VISTA DRIVE ESPIRIT DRIVE BRUMBY LANE 40°35'37.5" RUIDOSA DRIVE WITHERS DR JUTLAND LANE MESSARA DRIVE VITALA DRIVE SOLARIS DRIVE 40°35'37.5" 105°00'00" MAPLE LANE COTTONWOOD LANE LOCUST LANE BIRCH LANE ENCHANTMENT DRIVE LINDEN DRIVE VIEW CARRIAGE ROAD WILLOW LANE MCLAUGHLIN LANE COUNTY ROAD 3E MULBERRY STREET BRENTON DR SPRINGER DRIVE CLOVERLEAF WAY COUNTY ROAD 5 40°33'45.0" B O U L D E R C I R C LE CAR R IA G E P K WY SUNCHASE DR MEADOWAIRE DRIVE CAMINO REAL ROAD KITCHELL WAY 1450000 FT CAMINO MUNDO DEL ROAD ORILLA DEL LAGO ROAD COUNTY ROAD 44 COUNTY ROAD 5 Cache La Poudre Reservoir Inlet BURLINGTON NORTHERN RAILROAD REVISED AREA 4 959.1 4940.6 4943.0 4935.1 4944.8 4929.6 4962.7 4934.2 4926.5 4932.1 4920.7 4939.1 4952.6 4952.5 4952.6 %, AP %, AJ %, AK %, AH %, AL %, AE %,AQ %, AG %, AC %, AF %, Z %, AI %, AO %, AM %, AN 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT BoCxreeledker Kitchell Lake BoCxreeledker Larimer And Weld Canal Lake Canal Boxelder Creek Cache La Poudre Reservoir Inlet Baker Lake Boxelder Creek 502000mE ZONE AE 1455000 FT ZONE AE 4492000mN ZONE AE ZONE AE NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 7NORTH, RANGE 68 WEST. 4491000mN ZONE AE BURLINGTON NORTHERN RAILROAD 4493000mN 501000mE 104°58'07.5" 3145000 FT ZONE AE Larimer and Weld Canal Culvert %, AD 4926.7 %,AB 4924.9 0 125 250 500 PANEL 1003 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 1001 1011 0982 0992 1012 0984 1003 LCaoruimnetyr *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 r ee k Larimer County Canal South Gray Reservoir Gray Reservoir Trappers Lake Larimer and Weld Canal 40°37'30" 105°00'00" 1470000 FT 3140000 FT 3145000 FT 104°58'07.5" 40°37'30" 4497000mN 449600mN 4495000mN 4494000mN 501000mE502000mE 104°58'07.40°35'37.5" 5" 40°35'37.105°00'00"5" 1460000 FT 1465000 FT T. 8 N. T. 7 N. T. 8 N. T. 7 N. CITY OF FORT COLLINS LARIMER COUNTY Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins City of 080102 Fort Collins 5 013.0 5014.5 5012.9 4964.3 4967.4 4976.8 4979.9 4990.8 4987.5 5012.8 4973.3 4985.4 5012.8 4972.0 5016.7 4969.7 4971.9 4981.9 4972.8 5012.8 4977.7 5012.8 5012.8 5024.3 5012.8 5012.8 %, BC %, BP %, BQ %, BO %,AR %, AS %, AY %, BA %, BE %, BD %, BN %, AX %,BM %, AV %, BR %, AT %, AU %, BB %,AW %,BL %, AZ %, BJ %, BK %, BS %,BI %,BH 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN STRUCTURE Overflow Boxelder Upstream Creek ZONE AE BoCxreeledker ZONE AE ZONE AE ZONE AE ZONE AE Boxelder Creek Boxelder Creek ZONE AE REVISED AREA 5023.4 5023.9 %, D 5015.3 %, C Culvert %,B 5013.2 %,A 5012.9 %,BG 5012.8 %,BF 4990.8 Culvert Culvert Culvert 0 125 250 500 PANEL 1001 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 0982 0769 0788 0984 1003 1001 LCaoruimnetyr *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 40°31'52.5" AVENUE ROAD WATERSTONE CT 498000mE 105°00'00" COBB DR LITTLE BEAR CT MONARCH CT 105°01'52.5" TARPAN LN SLADE ST MAROON CT SHAVANO CT P E R C H E RO N DR RED CLOUD CT 40°31'52.5" NOTE: THIS AREA IS SHOWN AS BEING PROTECTED FROM THE 1-PERCENT-ANNUAL-CHANCE OR GREATER FLOOD HAZARD BY A LEVEE SYSTEM. OVERTOPPING OR FAILURE OF ANY LEVEE SYSTEM IS POSSIBLE. FOR ADDITIONAL INFORMATION, SEE THE "ACCREDITED LEVEE NOTE" IN NOTES TO USERS. PARKFRONT CHERRCYTSTONE JOSEPH DES MOINES LIMON DR 40°33'45.0" STRATFORD CT NAN C Y G R A Y A VE RED MOUNTAIN CT NEWGATE CT REDBURN DR TOPEK A LANE BL A C K ST O NE CT HACKNEY NITE CT DRIVE SUNSTONE WAY APPLETON CT RE D MO U NT A IN WHITWORTH DR BLACKSTONE DR WAPITI RD MICHELLE LN PADDINGTON RD ROCKFORD DR C A R R I C K R D CHARLIE LN CARIBOU WETTERHORN DR COAL BANK DRIVE E N V I R O NME N TAL DRIVE ROCHDALE DR BISON SHARP POINT DR CANYON ST BROMLEY DR CARRIN G T O N RD ASHMOUNT DR CREEKSTONE DR MIDPOINT DRIVE MESA VERDE ST STOCKBURY DRIVE KENTFORD RD DRIVE EX M O O R LANE WILLOW CREEK DR ANNELISE WAY RIGDEN PKWY MILES HOUSE CANBY WAY Unincorporated Larimer County Areas 080101 COFFEY PKWY STONEHAVEN DR COUNTY ROAD 7 DRAKE ROAD ZIEGLER ROAD 4488000mN MCLAUGHLIN LANE FI E LD S TO N E DR DE N VE R D R IVE SUNSTONE DRIVE ANTELOPE RD FRONTAGE ROAD KINGSLEY DR ¦¨§25 CHASE DR 1445000 FT COUNTY ROAD 9 DRIVE E HORSETOOTH ROAD COUNTY ROAD 9 BURLINGTON NORTHERN RAILROAD 4888.1 4878.1 4875.3 4891.2 4892.9 4885.9 4870.3 4874.3 4880.2 4883.9 4487000mN %, AN 4870.0 4870.0 Poudre Cache River La L Path 3135000 FT Poudre Cache River La BoCxreeledker City of 080102 Fort Collins R AILROAD Poudre Cache River La Split R Path %, C %,J %, F %, E %,K %,L %,I %, D %, C %, BF %, D %,G %,H %, C %, AO %, BB %, B %, A %, BC %, A %, B %, BE %,AZ %, B %, AY %, BD %, BA %, AX %, A %, AR %, AU %, AV %, AW %, AT %, AS Boxelder Ditch Poudre Cache River La Reservoir Fossil Inlet Creek Canal Poudre Cache River La LCohwanflnoewl BoCxreeledker Levee Fossil DitchCreek Diversion Dam 4869 4868 4880 4892 4865 4882 4879 4881 4858 4881 4880 4882 4890 4881 4893 4882 4869 4857 4880 4892 4892 4873 4890 4888 4886 4883 4889 4874 4885 4866 4872 4879 4859 4884 4880 4881 4856 4882 4872 4873 4891 4871 4869 4874 4860 4867 4868 4869 4883 4861 4877 4868 4866 4875 4876 4872 4878 4870 4865 4863 4864 City of 080102 Fort Collins Unincorporated Larimer County Areas 080101 Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins 22 33 20 27 29 28 21 34 32 REVISED AREA NOTE: WITHINGLOCATED MAP TOWNSHIP AREA SHOWN 7 NORTH, ON THIS RANGE PANEL 68 WEST. IS % , A 4882.2 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT Bridge DRAKE RD D R I V E WAT E R STO N E C O U RT DRAKE RD FLOODING EFFECTS FROM CACHE LA POUDRE RIVER SPLIT R PATH 0 125 250 500 PANEL 992 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 0994 1011 0983 1013 0984 1003 0992 LCaoruimnetyr *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 Unincorporated Larimer County Areas 080101 DARREN DRIVE Sherry OverfDlorwive I NTE R STA T E 2 5 F R O N TA G E R O AD FRONTAGE ROAD N FRONTAGE ROAD S COUNTRYSIDE DELDORZIER K ENWOOD DR MARCH CT JOHN DEERE DRIVE JAY DR JENNIE DR TANA DR TRACEY PKWY HARVESTER CT EAST PROSPECT ROAD COLLINS AIRE LN INTERNATIONAL BOULEVARD D O N E L LA CT A N D R E A ST JOANNE ST SURREY LANE GREENFIELDS CT SUMMIT CT DELOZIER DR SUMMIT VIEW DRIVE SUNRISE AVE VERDE AVE GREENBRIAR DR CENTRO WAY HORIZON AVENUE CLIFFORD AVENUE HARVESTER STREET TI M B ERLI N E R O A D LINCOLN AVE RENE DRIVE BOX ELDER DRIVE KIMBERLY DR WEICKER DRIVE BUCKEYE ST REDMAN DRIVE STOACVKETON ALAN ST JOHN DEERE DR DAWN AVENUE RIVERBEND DR GREENFIELD SHERRY DR CHERLY ST Larimer County Unincorporated 080101 Areas S HARP POINT DR CANAL DR SMITHFIELD DR PLEASANT ACRES LOCUST ST FRONTAGE ROAD INTERSTATE 25 FRONTAGE ROAD FR O N T A G E R O AD PLEASANT ACRES DR Sherry OverfDlorwive BODXREILVDEER SUMMIT VIEW DRIVE MULBERRY ST MULBERRY STREET DRIVE RAILROAD RIVERBEND CT. 40°33'45.0" 105°01'52.5" 498000mE 499000mE 105°00'00" 40°33'45.0" 4491000mN 4492000mN 4493000mN 105°00'00" 40°35'37.5" 105°01'52.5" 3135000 FT 40°35'37.5" 1455000 FT 1450000 FT ¦¨§25 RAILROAD NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 7 NORTH, RANGE 68 WEST. REVISED AREA 4 896.1 4923.0 4898.6 4898.1 4920.7 4898.4 4913.0 4923.1 4913.6 4909.7 4905.2 FLOODING EFFECTS FROM CACHE LA POUDRE RIVER SPLIT R PATH 4919.9 4921.3 4916.9 4940.0 4917.5 Poudre Cache River La 4924.8 % , BG 4939.1 4920.5 FLOODWAY CONTAINED IN CULVERT 4916.9 %, BF 4903.7 STREET 4923.6 4918.9 4916.9 4945.7 Cache River La L Poudre Path 4930.5 4914.3 4942.0 4930.7 4945.6 4937.7 % , Z %, T %, S %, BH %, D %, M %, BJ %, BK %, P %, N %, O %, U %,B %, V %, Y %, A %, X %, H %,B %, C %, G %, D %, C %, M %, E %, BI %, A %, F %, G %, R %, L %, N %, C %, B %, K %, A %, K %, J %, I %, W %, I %, E %, H %, J %, F 4890 4887 4884 4892 4891 4886 4892 4902 4903 Bridge Diversion Boxelder Ditch Dam 4904 4905 4904 4893 4906 4908 4893 4901 4884 4885 4899 4909 4898 4894 4904 4895 4896 4897 4891 4897 4900 4896 4892 4894 4895 Cache La Poudre River L Path Boxelder Creek Boxelder Creek Cache RiveProudre La Lake Canal Cache La Poudre Reservoir Inlet Boxelder Creek Cooper Slough % , BL ZONE AE SCprreienkg ZONE AE ZONE AE (ZONE DEPTH AO 2) Cache Reservoir La Poudre Inlet ZONE AE ZONE AE ZONE A City of 080102 Fort Collins ZONE AE ZONE AE %, A ZONE AE ZONE AE Cache SplitRiver La Poudre R Path BoCxreeledker ZONE AE ZONE AE ZONE AE DRIVE %,AA ZONE AE 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT ZONE AE Cooper Slough C OURT ZONE AE ZONE AE ZONE AE ZONE AE (ZONE DEPTH AO 2) ZONE AE ZONE AE ZONE AE F IELDRIDGE AVE 4949.2 4930.5 4920.6 %,D 4928.3 %, E 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT 4902.3 %, F %, E 4900.9 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT Bridge 4900.5 %, Q 4897.1 %, D 4895.7 %, C 4892.9 %, B Bridge Cooper Overflow Slough Culvert Culvert Culvert 0 125 250 500 PANEL 984 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 1001 1011 0981 0982 0992 0983 0984 1003 LCaoruimnetyr *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 GLENLOCH COURT CELTIC LANE BERWICK LN BRACADALE 105°00'52" 1470000 FT 105°00'00" VINE DRIVE TORRIDON LN DRIVE SCOTSMOORE N OTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 7 NORTH, RANGE 68 WEST AND TOWNSHIP 8 NORTH, RANGE 68 WEST. THORNHILL PL GARGANEY DR 3135000 FT 40°37'30" BONNEYMOORE RANNOCH ST LOCHMORE PL GLENWALL DRIVE FENWICK DRIVE 105°00'52" 499000mE 4494000mN 40°35'37.5" WATERGLEN DRIVE BERWICK COURT TIMBERLINE ROAD LARIMER COUNTY TIMBERLINE ROAD ¤£87 GARDENWALL COURT 498000mE 40°37'30" GLENARBOR LN ¦¨§25 WATERGLEN PL MOUNTAIN VISTA DRIVE PLACE Cooper Slough C AMPFIRE DRIVE ¦¨§25 ELGIN COURT THOREAU DRIVE FRONTAGE ROAD NE GIDDINGS ROAD 1460000 FT 1465000 FT BURLINGTON NORTHERN RAILROAD BUSCH DRIVE RICHARDS LAKE ROAD RICHARDS LAKE ROAD MOUNTAIN VISTA DRIVE VINE DRIVE ¤£87 BURLINGTON NORTHERN RAILROAD REVISED AREA 4 969.1 4962.1 4975.5 4972.2 4975.5 4956.9 4960.2 4953.6 %, O %, L %, P %,S %, Q %, R %, M %, N Larimer and Weld Canal No. 8 Outlet Irrigation Ditch No. 8 Outlet Irrigation Ditch Larimer and Weld Canal Cooper Slough ZONE AE ZONE AE ZONE AE T.8 N. ZONE AE T.7 N. ZONE AE C ITY OF FORT COLLINS LARIMER COUNTY BURLINGTON NORTHERN RAILROAD Unincorporated Larimer County Areas 080101 City of 080102 Fort Collins Unincorporated Larimer County Areas 080101 105°00'00"40°35'37.5" 4495000mN 4496000mN 4497000mN CITY OF FORT COLLINS LARIMER COUNTY FLOODING EFFECTS FROM BOXELDER CREEK UPSTREAM T. 8 N. T. 7 N. 4960.6 5023.4 4979.5 Culvert Culvert 1%-ANNUAL-CHANCE FLOOD DISCHARGE CONTAINED IN CULVERT 0 125 250 500 PANEL 982 OF 1420 Meters 0 500 1,000 2,000 Feet 1 inch = 500 feet 1:6,000 1001 0981 0983 0769 0788 0984 1003 0982 LCaoruimnetyr *PANEL NOT PRINTED SPECIAL HAZARD AREAS FLOOD OTHER FLOOD AREAS HAZARD OF AREAS OTHER STRUCTURES GENERAL Without Base Flood Elevation (BFE) With BFE or Depth Regulatory Floodway Area of Undetermined Flood Hazard Area of Minimal Flood Hazard Zone A,V, A99 Zone AE, AO, AH, VE, AR Zone X Zone D HTTP://MSC.FEMA.GOV DOCUMENTATION THE INFORMATION ARE DEPICTED ALSO AVAILABLE ON THIS MAP IN DIGITAL AND SUPPORTING FORMAT AT SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Cross Water Sections Surface Elevation with 1% Annual Chance Coastal Transect FEATURES OTHER Profile Hydrographic Baseline Feature Base Flood Elevation Line (BFE) Limit Jurisdiction of Study Boundary Coastal Transect Baseline 17.5 0.of 2% 1% Annual annual Chance chance Flood flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Future Chance Conditions Flood Hazard 1% Annual Area See Notes. with Reduced Flood Risk due to Levee Zone X Zone X Zone X !(8 %,E 18.2 NO SCREEN Levee, Dike, or Floodwall Channel, Culvert, or Storm Sewer Area with Flood Risk due to Levee Zone D This is not map available includes approximate within CBRS boundaries areas of for the structures CBRS for informational that are newly purposes built or substantially only. Flood insurance improved see http://www.on fws.or gov/after cbra, the the date(FIS s) Report, indicated or on call the the U.map. S. Fish For and more Wildlife information Service Customer Service Center at 1-800-344-WILD. CBRS Area Otherwise Protected Area For information and questions about this Flood Insurance Rate Map (FIRM), available products associated with this FIRM, including historic versions, the current map date for each FIRM panel, how to order products, or the National Flood Insurance Program (NFIP) in general, please call the FEMA Map Information eXchange at 1-877-FEMA-MAP (1-877-336-2627) or visit the FEMA Flood Map Service Center website at http://msc.fema.gov. Available products may include previously issued Letters of Map Change, a Flood Insurance Study Report, and/or digital versions of this map. Many of these products can be ordered or obtained directly from the website. Communities annexing land on adjacent FIRM panels must obtain a current copy of the adjacent panel as well as the current FIRM Index. These may be ordered directly from the Flood Map Service Center at the number listed above. For community and countywide map dates refer to the Flood Insurance Study Report for this jurisdiction. To determine if flood insurance is available in this community, contact your Insurance agent or call the National Flood Insurance Program at 1-800-638-6620. Base map information shown on this FIRM was derived from U.S. Census Bureau TIGER files, dated 2010, and digital data provided by Flood County Geospatial Coordinator, dated 2010. Local vertical monuments were used to create this map. To obtain current monument information, please contact the [community contact information, phone number] or visit the website at [website address]. ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent-annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. PROVISIONALLY ACCREDITED LEVEE: Check with your local community to obtain more information, such as the estimated level of protection provided (which may exceed the 1-percent- annual-chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection for areas on this panel. To maintain accreditation, the levee owner or community is required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations by (_____, _____). If the community or owner does not provide the necessary data and documentation or if the data and documentation provided indicate the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood hazard and risk information for this area to reflect de-accreditation of the levee system. To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing or other protective measures. For more information on flood insurance, interested parties should visit http://www.fema.gov/national-flood-insurance-program. LIMIT OF MODERATE WAVE ACTION: Zone AE has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate landward limit of the 1.5-foot breaking wave. The effects of wave hazards between the Zone VE and the LiMWA (or between the shoreline and the LiMWA for areas where Zone VE is not identified) will be similar to, but less severe than, those in the Zone VE. and Incorporated Areas COASTAL BARRIER RESOURCES SYSTEM (CBRS) # # Limit of Moderate Wave Action (LiMWA) REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 %, 5037.9 I 5033.5 %, H 5028.6 %, G 5026.5 %, F 5024.0 %,E 5054 Bridge BASE FLOOD ELEVATIONS (BFES) NORTH OF HIGHWAY 54 FOR BOXELDER CREEK ARE BASED ON A PREVIOUS HYDROLOGIC ANALYSES AND ARE NOT CONSISTENT WITH THE ANALYSIS SOUTH OF HIGHWAY 54. THESE BFES WILL BE UPDATED IN THE NEAR FUTURE. LARIMER and Incorporated COUNTY, Areas COLORADO 1.1.1.0 08069C0788F DECEMBER 19, 2006 LARIMER COUNTY 080101 0788 F 788 1420 FEMA National Flood Insurance Program Without Zone A, V, A99 Base Flood Elevation (BFE) With BFE or Depth Zone AE, AO, AH, VE, AR SPECIAL FLOOD Regulatory Floodway HAZARD AREAS 0.of 2 1% % annual Annual chance Chance flood Flood with Hazard, average Areas depth areas of less less than than one one foot square or with mile drainage Zone X Future Chance Conditions Flood Hazard 1% Annual Zone X Area See Notes. with Reduced Zone X Flood Risk due to Levee OTHER FLOOD AREAS HAZARD OF NATIONAL FLOOD INSURANCE PROGRAM FLOOD INSURANCE RATE MAP Panel Contains: FEMA COMMUNITY NUMBER PANEL SUFFIX PANEL OF VERSION NUMBER MAP NUMBER 0 62.5 125 250 Meters SCALMaEp Universal Projection:Transverse MercatorNAD 1983 UTM Zone 13N Western Hemisphere; Vertical Datum: NAVD 88 0 250 500 1,000 Feet 1 inch = 500 feet 1:6,000 EFFECTIVE DATE REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 REFLECT LOMR EFFECTIVE: February 21, 2019 REVISED TO REFLECT LOMR EFFECTIVE: February 21, 2019 YES Floodway Floodway YES NONE Cooper Slough Overflow Zone AO Zone X (unshaded) NONE YES Zone AE Zone AE YES YES Floodway Floodway YES YES Sherry Drive Overflow Zone AE Zone AE YES YES YES YES YES This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration Zone AE Zone AO BFEs Floodway Zone AO YES YES Zone X (shaded) Zone AO Zone X (shaded) Zone X (unshaded) YES YES BFEs Floodway Floodway YES YES BFEs BFEs YES YES TYPE: FIRM* TYPE: FIRM* TYPE: FIRM* DATE OF EFFECTIVE FLOOD INSURANCE STUDY: PROFILES: 110P, 112P, 114P-128P, 144P-149P (removed), 151P (removed), 155P-157P (removed),159P-162P, 163P (removed), 163P(a) (removed), 182P, 199P, 200P, 208P- 210P, 213P, 214P, 288P, 319P-322P (removed) FLOODWAY DATA TABLE: 4 SUMMARY OF DISCHARGES TABLE: 2 February 06, 2013 Enclosures reflect changes to flooding sources affected by this revision. * FIRM - Flood Insurance Rate Map; FLOODING SOURCE AND REVISED REACH See Page 2 for Additional Flooding Sources Boxelder Creek - from the confluence with Cache La Poudre River to approximately 80 feet upstream of County Road 54 SUMMARY OF REVISIONS Flooding Source Effective Flooding Revised Flooding Increases Decreases Boxelder Creek Zone AE Zone AE YES YES BFEs* BFEs YES YES Floodway Floodway YES YES Zone AO Zone AE NONE YES * BFEs - Base Flood Elevations DETERMINATION This document provides the determination from the Department of Homeland Security's Federal Emergency Management Agency (FEMA) regarding a request for a Letter of Map Revision (LOMR) for the area described above. Using the information submitted, we have determined that a revision to the flood hazards depicted in the Flood Insurance Study (FIS) report and/or National Flood Insurance Program (NFIP) map is warranted. This document revises the effective NFIP map, as indicated in the attached documentation. Please use the enclosed annotated map panels revised by this LOMR for floodplain management purposes and for all flood insurance policies and renewals in your community. This determination is based on the flood data presently available. The enclosed documents provide additional information regarding this determination. If you have any questions about this document, please contact the FEMA Map Information eXchange toll free at 1-877-336-2627 (1-877-FEMA MAP) or by letter addressed to the LOMC Clearinghouse, 3601 Eisenhower Avenue, Suite 500, Alexandria, VA 22304-6426. Additional Information about the NFIP is available on our website at https://www.fema.gov/national-flood-insurance-program. 17-08-1354P 102-I-A-C Patrick “Rick” F. Sacbibit, P.E., Branch Chief Engineering Services Branch Federal Insurance and Mitigation Administration 1.61 1.41-9.17-14.11 0.12-0.14-0.1 5 1.5- 2.1- 3.5 0.0- 0.3- 0.9 .37 .37 47-80 37-48- 72 2-28- 48 15-24- 26 1.44-1.54- 1.65 4.23-9.17-42.34 0.11-0.17-0.1 7 0.9- 2.6- 2.9 0.0- 0.3- 0.9 .37 .37 74—Nunn clay loam, 1 to 3 percent slopes Nunn 0-9 36-43- 45 17-26- 37 27-31- 38 1.39-1.41- 1.43 0.42-2.82-4.23 0.16-0.16-0.1 7 3.3- 4.3- 6.8 1.0- 1.5- 2.0 .28 .28 5 6 48 9-13 25-32- 39 16-30- 40 35-38- 45 1.32-1.37- 1.42 0.42-0.92-1.41 0.14-0.16-0.1 6 5.8- 6.6- 8.4 1.0- 1.5- 2.0 .28 .28 13-25 25-32- 39 16-30- 40 35-38- 45 1.43-1.46- 1.48 0.42-0.92-1.41 0.14-0.16-0.1 6 5.6- 6.2- 8.2 0.5- 0.8- 1.0 .32 .32 25-38 35-41- 65 2-30- 45 20-29- 33 1.42-1.49- 1.56 1.41-2.82-14.11 0.12-0.17-0.1 7 1.8- 3.5- 4.4 0.0- 0.3- 0.9 .37 .37 38-80 37-41- 65 2-29- 48 15-30- 33 1.44-1.50- 1.56 1.41-2.82-42.34 0.10-0.17-0.1 7 1.1- 3.7- 4.5 0.0- 0.3- 0.9 .32 .32 Custom Soil Resource Report 24 -100 100-100 -100 86-94-1 00 57-69- 85 29-39 -44 12-19-2 3 38-80 Sandy clay loam, sandy loam, loam, clay loam CL A-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 84-94-1 00 53-69- 77 25-40 -44 9-20-23 Custom Soil Resource Report 20 24-27-3 3 26-31 Clay loam, loam, sandy clay loam CL A-7-6, A-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 87-94-1 00 58-68- 74 30-42 -47 12-22-2 5 31-47 Loam, clay loam, sandy clay loam CL A-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 88-96-1 00 55-65- 80 29-31 -41 12-14-2 0 47-80 Sandy clay loam, sandy loam, loam CL A-6 0- 0- 0 0- 0- 0 100-100 -100 100-100 -100 86-96-1 00 49-64- 75 24-34 -38 7-16-18 Custom Soil Resource Report 19 accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Larimer County Area, Colorado Survey Area Data: Version 13, Sep 10, 2018 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Sep 20, 2015—Oct 21, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 7