HomeMy WebLinkAboutPOWERHOUSE 2 - FDP220015 - SUBMITTAL DOCUMENTS - ROUND 3 - STORMWATER MANAGEMENT PLAN
STORMWATER MANAGEMENT PLAN (SWMP)
POWERHOUSE 2
Fort Collins, CO
April 19, 2023
Prepared for:
City of Fort Collins
Stormwater Utility
700 Wood Street
Fort Collins, CO 80521
Prepared by:
301 North Howes Street, Suite 100
Fort Collins, Colorado 80521
Phone: 970.221.4158 Fax: 970.221.4159
www.northernengineering.com
Project Number: 207-030
This Drainage Report is consciously provided as a PDF.
Please consider the environment before printing this document in its entirety. When a
hard copy is absolutely necessary, we recommend double-sided printing.
April 19, 2023
City of Fort Collins
Stormwater Utility
700 Wood Street
Fort Collins, CO 80521
RE: Stormwater Management Plan
Powerhouse 2
To Whom It May Concern:
Northern Engineering Services, Inc. is pleased to submit this Stormwater Management Plan for the
Powerhouse 2 project. This report outlines Best Management Practices (BMPs) to be implemented with
the proposed construction in order to minimize potential pollutants in stormwater discharges.
We have prepared this report to accompany the Colorado Department of Public Health and
Environment General Permit for Stormwater Discharge Associated with Construction Activities (aka,
Stormwater Discharge Permit or SDP). The General Permit No. for this SDP is (to be filled-in by
permittee) and the Certification No. for this SDP is (to be filled-in by permittee). The Permit Certification
is Effective beginning (to be filled-in by permittee), and initial certification expires (to be filled-in by
permittee). A copy of the issuance cover letter can be found in the Appendix D of this document (to be
provided by permittee).
Please note: this Stormwater Management plan (including the Site Maps) is not a static document. It is
a dynamic device that should be kept current and logged as construction takes place. As such, this
version was prepared to facilitate initial plan approvals and permitting, but does not necessarily reflect
the final version, or the transitions throughout the construction process. As the site develops and
changes, the Contractor is expected and encouraged to make changes to what is contained herein so
that the SWMP works as effectively and efficiently as possible. It shall be the responsibility of the SWMP
Administrator and/or the permit holder (or applicant thereof) to ensure the plan is properly maintained
and followed.
If you should have any questions or comments as you review this report, please feel free to contact us at
your convenience.
Sincerely,
NORTHERN ENGINEERING SERVICES, INC.
Carlos Ortiz García Nick Haws, PE
Project Engineer Project Manager
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan
TABLE OF CONTENTS
Vicinity Map
1.0 Project Descriptions and Nature of Construction ........................................................................ 1
1.1 Existing Site Description .................................................................................................................... 1
1.2 Nature of Construction Activity ........................................................................................................ 1
1.3 Site Disturbance ................................................................................................................................ 1
1.4 Existing Topographic and Soil Data ................................................................................................... 1
1.5 Receiving Waters .............................................................................................................................. 1
1.6 Existing Site Conditions and Vegetation ........................................................................................... 1
1.7 Distance from riparian or sensitive areas ......................................................................................... 2
1.8 Existing Groundwater........................................................................................................................ 2
1.9 Existing Ground Contamination ........................................................................................................ 2
1.10 Construction Activity ......................................................................................................................... 2
2.0 Proposed Construction Activities ................................................................................................ 2
2.1 Sequence of Major Activities ............................................................................................................ 2
3.0 General Requirements ................................................................................................................ 3
3.1 Objectives.......................................................................................................................................... 3
3.2 SMWP Availability ............................................................................................................................. 3
3.3 Definitions ......................................................................................................................................... 3
3.4 Additional Permitting ........................................................................................................................ 3
4.0 Potential Pollution Sources ........................................................................................................ 4
4.1 Disturbed and Stored Soils – YES ...................................................................................................... 4
4.2 Vehicle Tracking of Sediment – YES .................................................................................................. 4
4.3 Management of Contaminated Soils – NO ....................................................................................... 5
4.4 Loading and Unloading Operations – YES ........................................................................................ 5
4.5 Outdoor Storage of Construction Site Materials, Building Materials, Chemicals etc. – YES ............ 5
4.6 Bulk Storage of Materials – NO ........................................................................................................ 6
4.7 Vehicle and Equipment Maintenance and fueling – YES .................................................................. 6
4.8 Significant Dust or Particulate Generating Processes – YES ............................................................. 6
4.9 Routing Maintenance Activities involving Fertilizer, Pesticides, Detergents, Fuels, Solvents, Oils –
YES 6
4.10 On-Site Waste Management Practices – YES ................................................................................... 7
4.11 Concrete Truck/Equipment Washing – YES ...................................................................................... 7
4.12 Dedicated Asphalt and Concrete Batch Plants – NO ........................................................................ 8
4.13 Non-Industrial Waste Sources such as Worker Trash and Portable Toilets – YES ........................... 8
4.14 Sawcutting and Grinding – YES ........................................................................................................ 8
4.15 Material Handling and Spill Prevention – NO ................................................................................... 9
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan
4.16 Other non-Stormwater Discharges including construction dewatering not covered under the
Construction Dewatering Discharges general permit and wash water that may contribute to pollutants to the
MS4 – NO 9
5.0 Stormwater Management Control Measures ........................................................................... 10
5.1 SWMP Administrator ...................................................................................................................... 10
5.2 Best Management Practices (BMP’s) for Stormwater Pollution Prevention .................................. 10
5.3 Structural Practices for Erosion and Sediment Control .................................................................. 11
5.4 Non-Structural Practices for Erosion and Sediment Control........................................................... 13
5.5 Phased BMP Installation ................................................................................................................. 15
5.6 BMP Inspection ............................................................................................................................... 16
5.7 BMP Maintenance ........................................................................................................................... 16
5.8 Record Keeping ............................................................................................................................... 17
6.0 Final Stabilization and Long-Term Stormwater Management ................................................... 18
6.1 Final Stabilization ............................................................................................................................ 18
6.2 Long-Term Stormwater Management ............................................................................................ 18
7.0 Additional SWMP and BMP Resources ..................................................................................... 20
References 21
LIST OF TABLES:
Table 1 – Preliminary Permit and Construction Schedule .......................................................................... 16
APPENDICES:
APPENDIX A – Site Maps
APPENDIX B – Erosion Control Details
APPENDIX C – Landscape Plan
APPENDIX D – Copies of Permits/Applications
APPENDIX E – Inspection Logs
APPENDIX F – Contractor Inserts (as needed)
APPENDIX G – Contractor Inserts (as needed)
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 1
1.0 Project Descriptions and Nature of Construction
1.1 Existing Site Description
The project is located in the Southwest ¼ of Section 1, Township 7 North, Range 69 West of the 6th
Principal Meridian, City of Fort Collins, County of Larimer, State of Colorado. It is generally bound to the
north by Lake Canal, the east by Jerome Street, the south by East Vine Drive, and the west by North
College Avenue.
1.2 Nature of Construction Activity
The proposed project site plan is one building, parking areas, and open spaces. Associated site work that
will be constructed with this project include sidewalk, water service, fire sprinkler line, and sanitary
sewer service. Current City Low-Impact Design (LID) requirements will be implemented with the project
and will consist of four rain gardens.
1.3 Site Disturbance
The site disturbance will occur across roughly 4.73 acres. It is recommended that existing site condition
photos be taken prior to the demolition.
1.4 Existing Topographic and Soil Data
In order to complete the associated construction plans, a topographical survey of the site was
completed. This survey consisted of field measurements made by the Northern Engineering in October
2019.
A NRCS Custom Soil Resource Report indicates that the soil on site is composed of Table Mountain loam
considered well drained hydrologic Soil Group B, Nunn clay loam considered well drained hydrologic Soil
Group C, and Paoli fine sandy loam considered well drained in hydrologic Soil Group A.
NRCS indicates a wind erodibility rating of 5 (of a scale of 1 to 8, 1 is most susceptible to erosion). As
such this site has a moderate potential for wind erosion. NRCS indicates an erosion factor, K, of 0.37
(range of 0.02-0.69, 0.69 being more susceptible to sheet and rill erosion). As such, this site has a
moderate susceptibility to sheet and rill erosion.
The subject property is a partially developed parcel with concrete, asphalt pavement, gravel, dirt, and
native and non-native ground cover. The existing ground generally slopes at mild to moderate grades
(0.5%–2%) overland through the interior to the south and E. Vine Drive. There are existing structures on
the site.
1.5 Receiving Waters
Stormwater runoff from the project area will generally sheet flow across the site and be capture by
drainage swales, rain gardens, and the detention pond. The drainage continues from the detention
pond through outfall pipes to the Poudre River Whitewater Park and on to the Cache la Poudre River.
This drainage pattern follows the historic drainage course.
1.6 Existing Site Conditions and Vegetation
The existing site 69% gravel with vegetation consisting primarily of native and non-native grasses. These
non-native grasses naturally grow in clumps, which inevitably leads to some bare areas. In general, the
existing site has approximately 5% vegetative cover with a composite percent of impervious of 54%. It is
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 2
highly recommended that pre-construction photos be taken to clearly document vegetative
conditions prior any disturbance activities.
1.7 Distance from riparian or sensitive areas
This north side of the site is adjacent to Lake Canal. There is 5,800 square feet of grading within the 30’
wide Lake Canal easement. There are no on-site wetlands.
1.8 Existing Groundwater
CTL Thompson, INC. performed Bore Tests in March of 2022 and groundwater was measured at 8 to 11
feet during drilling on site.
1.9 Existing Ground Contamination
No existing ground contamination has been identified at this time.
1.10 Construction Activity
Description Estimated
Quantity Units
Total Disturbed Project Area 5.6 Acre
Total "Onsite" Area of Disturbance 4.73 Acre
Total "Offsite" Area of Disturbance 0.87 Acre
Total Storage/Staging Area 1 Acre
Total Haul Roads Area N/A
Construction vehicle traffic Area N/A
Est. Percent of Project Area Exposed 100 %
Est. Percent Vegetation Cover 5 %
Existing Soil Type B
Table Mountain loam, 0 to 1%
slopes
Groundwater Depth 8 Feet
Number of Phases w/Project N/A
Total volume of imported (+) / exported (-)
materials 8,900 Cubic Yds.
Total area of stockpiling of fill or borrow areas
off site 0 Sq. feet
Steepest Slope 8:1 H:V
Distance from riparian area or sensitive area 0 Feet
2.0 Proposed Construction Activities
2.1 Sequence of Major Activities
To complete the project, many basic categories of construction activity will take place. The first part will
be the removal of existing improvements, topsoil, and native grasses that are currently on-site, followed
by overlot grading. Next, utility installation and foundation excavation will begin. Vertical construction of
the building will commence after foundation and underground work is complete. New curb/gutter,
paving, and sidewalks are expected to begin after the storm drain is in place. The final stages of site
construction will be fine grading of the areas around the building, and the installation of landscaping
throughout the project. The aforementioned sequencing is an initial best guess and is subject to change
at the Contractor’s discretion.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 3
This project is proposed to be built in one phase.
Earthwork stockpiling and export from the site is expected.
3.0 General Requirements
3.1 Objectives
The objective of a Stormwater Management Plan (SWMP) is to identify all potential sources of pollution
likely to occur as a result of construction activity associated with the site construction, and to describe
the practices that will be used to reduce the pollutants in stormwater discharges from the site. The
SWMP must be completed and implemented at the time the project breaks ground and revised as
necessary as construction proceeds to accurately reflect the conditions and practices at the site.
This report summarizes the Stormwater Management Plan for the construction activity that will occur
with Powerhouse 2 in Fort Collins, CO. This plan has been prepared according to regulations of the
Colorado Department of Public Health and Environment (CDPHE), Water Quality Control Division. This
report has been provided to meet the requirements of the City of Fort Collins Municipal Code §26-498
on water quality control.
3.2 SMWP Availability
This report is intended to remain on the aforementioned construction site to allow for maintenance and
inspection updates, and for review during inspection.
3.3 Definitions
BMP – Best Management Practice encompassing a wide range of erosion and sediment control
practices, both structural and non-structural in nature, which are intended to reduce or eliminate any
possible water quality impacts from stormwater leaving a construction site.
Erosion Control BMPs – Practices that PREVENT the erosion of soil, such as minimizing the amount of
disturbed area through phasing, temporary stabilization, and preserving existing vegetation.
Sediment Control BMP’s – Practices to REMOVE sediment from runoff, such as sediment basins, silt
fence, or inlet protection.
Non-structural BMP’s – The implementation of methods, practices, and procedures to minimize water
quality impacts, such as the preservation of natural vegetation, preventive maintenance and spill
response procedures.
Structural BMP’s – Physical devices that prevent or minimize water quality impacts, such as sediment
basins, inlet protection, or silt fence.
3.4 Additional Permitting
As mentioned above, this Stormwater Management Plan is associated with the Colorado Department of
Public Health and Environment Stormwater Permit that is issued by the Water Quality Control Division
of the CDPHE. Additional Environmental permitting not described in this report may be required as a
part of this project. An example is the Construction Dewatering Permit for groundwater. Another
example is the Air Pollution Emission Notice (APEN). The CDPHE website contains links to both permits,
as well as many other potential permits. The Contractor is responsible for ensuring the proper permits
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 4
are acquired.
4.0 Potential Pollution Sources
As is typical with most construction sites, there are a number of potential pollution sources which could
affect water quality. It is not possible for this report to identify all materials that will be used or stored
on the construction site. It is the sole responsibility of the Contractor to identify and properly handle all
materials that are potential pollution sources. Likely pollution sources are marked “YES”, unlikely
pollution sources are marked “NO” below and in the Table of Contents. The following are some common
examples of potential pollution sources:
· YES - Disturbed and stored soils
· YES - Vehicle tracking of soils and sediment
· NO - Management of contaminated soils
· YES - Loading and unloading operations
· YES - Outdoor storage of construction site materials, building materials, fertilizers, chemicals, etc.
· NO - Bulk Storage of Materials
· YES - Vehicle and equipment maintenance and fueling
· YES - Significant dust or particulate generating processes
· YES - Routine maintenance activities involving fertilizers, pesticides, detergents, fuels, solvents, oils,
etc.
· YES - On-site waste management practices (waste piles, dumpsters, etc.)
· YES - Concrete truck/equipment washing
· NO - Dedicated asphalt and concrete batch plants
· YES - Non-industrial waste sources, such as worker trash and portable toilets
· YES - Saw Cutting and Grinding
· NO - Material Handling and Spill Prevention
· NO - Other non-stormwater discharges including construction dewatering not covered under the
Construction Dewatering Discharges general permit and wash water that may contribute pollutants
to the MS4
4.1 Disturbed and Stored Soils – YES
Approximately 4.73 acres of the site will be disturbed with the Construction Activities. Once soils
have been disturbed, they do not retain the same compaction as in their native state, therefore
surface runoff can cause more soil erosion than was historically observed. In the event these erosion
control practices do not keep sediment on site, a structural barrier (silt fence) will be used and is
called out for on the perimeter. If soil manages to migrate from the disturbed areas onto the hard
surfaces, it will be swept or scraped (street sweeping) to prevent the migration of sediment. In case
that sediment is washed away too quickly the curb inlets will need protection (rock sock style inlet
protection).
4.2 Vehicle Tracking of Sediment – YES
Vehicle tracking of sediment may occur throughout the construction process and along all areas
where the pavement meets the disturbed dirt. This occurs most often after any melt off or rain
conditions when mud collects on vehicles tires and is tracked out onto the road consequently
leaving site. This increases the possibility of sediment discharging to the storm system. To prevent
tracking, access to the site will be limited to construction entrances (vehicle tracking pads to be
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 5
installed) on the south and east sides of the site. Vehicle access will be limited on muddy days (site
management control), in this case parking will be kept to the street. The tracking pad will be
monitored visually every day and if track-out becomes a significant problem a larger or more robust
tracking pad may be installed. Otherwise, all track-out that reaches the street will be scraped and
swept (street sweeping). Secondary controls at the closest affected inlets will have protection (inlet
protection) to capture sediment not swept up in a timely manner.
Additional measures can be taken to minimize and control sediment discharges from the site due to
vehicle tracking. These measures can include fencing around the site to control access points. The
use of gravel parking areas and wash racks can also be implemented to ensure minimal vehicle
tracking from the site.
4.3 Management of Contaminated Soils – NO
All data about the site shows that there is no known contamination on the site. If encountered, the
contractor will have the material stored in a covered area (materials management control) as to not
mix with the stormwater until the material can be identified and proper classification and disposal
methods can be determined in accordance with the various waste laws and with good construction
safety and practices.
4.4 Loading and Unloading Operations – YES
There is anticipated to be a significant amount of export leaving the site. Depending on the final
destination of the export, the Contractor could exit the site using the E. Vine Drive access or the
Jerome Street access to E. Vine Drive, then head west to N. College Avenue or head east.
During this project there will be a diverse amount of loading and unloading. The foundation workers
will have to deliver forms to the site and deliver premixed concrete. Building materials will have to
be staged around the site and landscapers will have to pile the materials on site to complete the
landscape work. Though the loading and loading vehicles will be contributing to the track out of
materials, depending on the material being delivered to the site they may have a significant spill
potential. Where the trailers must access the site, an attempt will be made to keep the vehicle on
the VTC or other stabilized storage areas. When loading and unloading is occurring, depending on
the materials, there may be an increased problem of containers being dropped, punctured, or
broken. These off-loading activities will be located away from storm drains and will have nearby spill
kits accessible. Spills on site will be addressed using spill prevention and response procedures.
4.5 Outdoor Storage of Construction Site Materials, Building Materials, Chemicals etc. – YES
It is anticipated that inert material like wood, shingles, tiles, siding insulation and stone will be
stored on site and outside in the elements. It is also anticipated that materials that do not weather
well (cement, mortar, etc.) will also be located outside. Chemicals are not anticipated to be left
outside. As the inert materials have a lower potential to leave the site, they will be monitored during
inspection to make sure they are not being impacted by the exposure to the elements (site
management control). The materials that will need added attention are the cements and mortars as
they quickly mix with water and cause pollution issues. These materials, when not stored inside, will
be placed on pallets to get above potential surface runoff and covered with tarps or plastic to
prevent mixing with stormwater (materials management control). Very small quantities of chemical
are needed to contaminate stormwater so the fertilizers, paints, form oils, petroleum products, and
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 6
other typical chemicals, will be stored in the construction Conex boxes, trailers, vehicles, or the like
out of contact with precipitation (materials management control). If not stored in a location as
described, secondary containment will be required. The contractor shall clearly designate site areas
for staging and storage of building materials.
4.6 Bulk Storage of Materials – NO
This site is not expected to store bulk liquid chemicals of more than 55-gallon drums. If this site
does have the need to store liquid chemicals the following procedure should be followed.
These materials should be stored in an area that if a rupture would occur, it would be contained.
The area will need to be located away from the drainage areas and area inlets (site management /
materials management). The containers will be stored in secondary containment area with a fence
so that if a spill were to happen, it would pool in the bottom of the area and be contained.
4.7 Vehicle and Equipment Maintenance and fueling – YES
Based on the size of the site and the short window of activities vehicle fueling and vehicle
maintenance is highly unlikely. As fueling and equipment maintenance usually result in small spills of
petroleum products it is important to monitor these activities carefully. (site management control)
Some grading companies will employ a fuel truck to fill the heavy equipment on site or require the
maintenance of a broken machine. In those cases where the vehicle is not able to be maintained off
site, these activities will be done in the least detrimental way possible. The maintenance and fueling
will be located as far from stormwater features as possible and at least 50 feet from a stormwater
feature (site management/materials management). The fueling activity will have spill materials
nearby and a bucket or other container and shovel located nearby to hang a hose after filling to
catch drips, and to scoop up any dirt that inadvertently mixed with the soil (materials management).
That container will have a lid and be disposed of when the activity is completed. The maintenance
work will be done on a tarp or other material to prevent the residual oils and greases from mixing
with the dirt (materials management). A clearly designated on-site fueling and maintenance area is
suggested
4.8 Significant Dust or Particulate Generating Processes – YES
This project will result in earth moving activities, street sweeping, and track-out and carry-out, bulk
materials transport, and saw cutting. As these activities will result in offsite transport of atmospheric
pollution reasonable precautions shall be taken. The project will follow all required “BMPs”
articulated in the Fugitive Dust Manual and at least one additional BMP included during each of the
identified activities in accordance with City Ordinance No. 044 2016. Also, a copy of the Dust Control
Manual will be kept in the trailer during construction for reference. Such activities will include but
not be limited to watering the site, covering trucks, slower site speeds and vehicle tracking
mentioned above.
4.9 Routing Maintenance Activities involving Fertilizer, Pesticides, Detergents, Fuels, Solvents, Oils –
YES
Fertilizers and Pesticides will be used during the later phases of the project when trying to establish
a healthy vegetation. These chemicals are highly water soluble and are easily and unnoticeably
carried in the stormwater. Proper application rates and recommended timing of application will be
strictly followed and not on days, or the next day, where the weather is calling for precipitation
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 7
(materials management control). As most of these types of chemicals will be brought on by the
landscaper, they will be required to keep these products in their vehicles until time of application
and not be allowed to leave these materials on the site (site management control). If these materials
are stored on site, they shall be kept inside or outside covered and above the ground to prevent the
materials from mixing with water and runoff (materials management control). Detergents, paints,
acids, cement, grout, and solvents will be prevalent in the interior work of the building (materials
management). These materials also are typically easily mixed with water yet are typically noticeable
by discolored, cloudy, or sudsy water. As such, the contractor will always keep an eye out for these
types of differences in water around the site (site management control). However, these materials
are to be handled, operated, and cleaned up all within the inside of the structure, where external
use is concerned these materials will be stored in the construction Conex box, trailers, vehicles, or
the like out of contact with precipitation (materials management). If not stored in a location as
described, secondary containment will be required (materials management). Fuels and oils might be
associated with the smaller equipment used on site, chainsaws, pumps, generators, etc. As
petroleum products are easily suspended in water and are spread across the top of the water
surface. These products, when located in water, have rainbow sheen on them. They are also
monitored during construction (site management controls). These products will be stored in the
construction Conex box, trailers, vehicles, or similar structure that will minimize contact with
precipitation (materials maintenance controls). If not stored in a location as described, secondary
containment will be required (materials maintenance). Any untreated runoff from these activities
can be detrimental to wildlife if not cleaned up.
4.10 On-Site Waste Management Practices – YES
All large and heavy weighted waste piles (concrete chunks, excavated pipes, etc.) will be kept in a
neatly grouped pile until the material can be disposed of properly. These piles will only be stored the
shortest duration possible and will be kept a minimum of 50 feet from any drainage course or inlet
(Administrative Control). All dry wastes will be maintained through dumpsters and monthly hauler
removal (hauler will be notified if dumpster becomes full and hauled off as needed). Where
available by the hauling company, the dumpster will be covered. If not practical or available by the
haul company, an increased removal schedule will be followed and the “Max fill line” on the
dumpster will be strictly followed. Corners of the dumpsters will be monitored for “Dumpster Juice”
leaking into the soil in dry conditions and rain/melt off conditions looking for it mixing with the
runoff. Dumpsters, like the waste piles, will be located at least 50 feet from any drainage course or
inlet. Workers will be sent around at the end of the day to collect trash to prevent trash being left
out overnight. No construction debris (including broken concrete) will be buried on site.
4.11 Concrete Truck/Equipment Washing – YES
Concrete will be a portion of this project. It is anticipated that it will be used with the joints around
the manholes, pour in place inlets, curb and gutter installation, sidewalks, and foundations. Pre-
mixed concrete trucks will be used in this process and will be delivered to the site and when pouring
the foundation. Washing of the concrete equipment will be required to maintain the concrete
equipment. This concrete wash water has a high alkaline content which is hazardous material to
terrestrial and aquatic wildlife. A section of dirt near the entrances will be excavated and compacted
around the sides formed to retain the concrete wash water on site (as an acceptable practice by the
State) so long as the wash water is kept in the washout (concrete washout). There will be a rock pad
for the truck to park on while washing as to prevent tracking from this washout (VTC). The
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 8
placement of this washout will be located at least 50 feet from any drainage course or inlet. Later in
the project, after the parking lots curb and gutter has been poured, the use of a mobile washout
facility will be used on site in a similar location and after the ground has been leveled (concrete
washout – mobile). The contractor (including all masonry and concrete tradesmen) shall clean out
equipment within the washout area so that the runoff is not allowed to leave the washout. The only
exception would be for them to wash in the next day’s pour location. All concrete workers will be
made aware of the where they are to wash (site management controls & education). If there is a
significant amount of spillage when the transfer from concrete truck to pump truck occurs, a tarp or
other ground cloth should be used to collect spillage. (ground cover control).
4.12 Dedicated Asphalt and Concrete Batch Plants – NO
There will be no dedicated asphalt or concrete batch plants erected onsite for this project. Pre-
mixed concrete and paving materials will be delivered to the site and placed.
In the event that a plant is needed, the Contractor should be aware that additional permitting will
be required. In particular, an Air Pollutant Emission Notice (APEN) will need to be obtained from the
CDPHE.
4.13 Non-Industrial Waste Sources such as Worker Trash and Portable Toilets – YES
Since facilities are not located nearby for workers to use, trash and sanitary facilities will be required
on the site.
Worker trash will be co-mingled with the industrial trash and will follow the same controls with the
caveat that a trashcan will be located near the entrance of the site as the contractor will need to
dump their trash from lunch, etc. and this will be emptied weekly or more frequently, if needed.
There will be designated trash and bulk waste collection areas on-site. Dumpsters should be located
near site entrances to minimize traffic on disturbed soils, and they should be placed on a level soil
surface. When possible, materials should be recycled. Hazardous material waste should be
segregated from other solid waste.
If tipped over and when being cleaned, portable toilet facilities become a potential discharge if not
cleaned up. If human waste is spilled, it will need to be treated as a biological hazard of untreated
sewage and will need to be cleaned up in accordance with Larimer County Health Department
Guidance. The portable toilets should be staked in a way to prevent tipping on a dirt surface and
located at least 50 feet from a drainage course or inlet. If the site cannot accommodate a portable
toilet on dirt, a containment pan or other secondary containment will be provided. The secondary
containment should also be anchored to prevent tipping. All materials shall be properly disposed of
in accordance with the law.
4.14 Sawcutting and Grinding – YES
The trench work will require cutting into the City street requiring the use of hardened saws. These
saws generate a significant amount of dust. Watering the cutting surface to prevent airborne
particulates (BMP in the City’s Fugitive Dust Manual) is required. The cutting slurry has a high
content of fine particulates (Silica Dust, Metals, etc.) that is not allowed to discharge as runoff from
the site. To prevent slurry from discharging offsite, contractors will use the minimum amount of
water needed to prevent dust and blades from overheating (site management control). Cutting
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 9
slurry will be collected via vacuum or allowed to dry out and be scraped and swept up after the
cutting has finished (saw cutting).
The following protocol is recommended to prevent dust and slurry from asphalt and concrete saw
cutting activities from migrating into the existing storm drain system.
· Slurry and cuttings shall be vacuumed during cutting and surfacing operations
· Slurry and cuttings shall not remain on permanent concrete or asphalt pavement overnight
· Slurry and cuttings shall not drain to any natural or constructed drainage conveyance
· Collected slurry and cuttings shall be disposed of in a manner that does not violate groundwater
or surface water standards
4.15 Material Handling and Spill Prevention – NO
Potential pollution sources, as discussed in earlier sections, are to be to be identified by the
Contractor. Spill prevention procedures are to be determined and put in place prior to construction
by the Contractor. A spill and flooding response procedure must also be determined and put in place
prior to construction by the Contractor. Additionally, steps should be taken to reduce the potential
for leaks and spills to come in contact with stormwater runoff, such as storing and handling toxic
materials in covered areas or by storing chemicals within berms or other secondary containment
devices.
A notification procedure must be put in place by the Contractor, by which workers would first notify
the site construction superintendent, who would then notify the SWMP Administrator. Depending
on the severity of the spill, the site construction superintendent and SWMP Administrator would
possibly notify the Colorado Department of Public Health and Environment - Water Quality Control
Division, downstream water users, or other appropriate agencies. The release of any chemical, oil,
petroleum product, sewage, etc., which enter waters of the State of Colorado (which include
surface water, ground water, and dry gullies or storm sewers leading to surface water) must be
reported immediately to the Division’s emergency spill reporting line at (877) 518-5608. All spills
that will require cleanup, even if the spill is minor and does not need to be reported to the state,
should still be reported to the City of Fort Collins Utilities office at 970-221-6700.
While not expected with this project, it will be the responsibility of the Contractor to designate a
fueling area and take the necessary precautions to ensure that no stormwater pollution occurs in
the event that a fueling area is needed. Fueling areas shall be located a minimum 100 feet from all
drainage courses. A 12-inch-high compacted earthen ridge capable of retaining potential spills shall
enclose fueling areas. Other secondary containment devices can be used instead of the earthen
ridge. The area shall be covered with a non-porous lining to prevent soil contamination. Printed
instructions for cleanup procedures shall be posted in the fueling area and appropriate fuel
absorbents shall be available along with containers for used absorbents within the fueling area.
4.16 Other non-Stormwater Discharges including construction dewatering not covered under the
Construction Dewatering Discharges general permit and wash water that may contribute to
pollutants to the MS4 – NO
The Stormwater Construction Permit only covers discharges composed entirely of stormwater. The
discharge of pumped stormwater ONLY from excavations, ponds, depressions, etc. to surface
waters, or to a municipal storm sewer system is allowed by the Stormwater Construction Permit, as
long as the dewatering activity and associated BMPs are identified in the Stormwater Management
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 10
Plan (SWMP) and are implemented in accordance with the SWMP.
Aside from the exceptions noted above, non-stormwater discharges must be addressed in a
separate permit issued for that discharge. If groundwater is encountered, and dewatering is
required, a Construction Dewatering Permit must be acquired from the Colorado Department of
Public Health and Environment.
Based upon the geotechnical data, ground water levels indicate that it will be significantly lower
(about 5 feet) than the bottom of the deepest excavation. However, if encountered, dewatering
activities may be required. Groundwater has in most excavations, mixed with the dirt and as they
are pumped, they will add an increased velocity coming out of the out-flow end contributing to
erosion and speeding the transport of the suspended sediment particles. Also, construction
dewatering activities must be identified in the Erosion Control Report if they are to be infiltrated on
site. If the material is anticipated to be pumped to a stormwater conveyance the proper
Construction Dewatering Permit must be pulled from the State of Colorado. If pumping activities are
to occur on the site, the use of rock packs on the intake end of the pump will be used and a silt bag
will be used on the outflow end of the pump to reduce the silt and sediment from leaving the
activity (dewatering Control Measure). If this will be under a Dewatering Permit water samples will
be collected in accordance with that permit.
5.0 Stormwater Management Control Measures
5.1 SWMP Administrator
A SWMP Administrator must be designated in conjunction with the Stormwater Permit. This person shall
be responsible for developing, implementing, maintaining, and revising the SWMP. The SWMP
Administrator will also be the contact for all SWMP-related issues and will be the person responsible for
the accuracy, completeness, and implementation of the SWMP. The Administrator should be a person
with authority to adequately manage and direct day-to-day stormwater quality management activities
at the site.
The SWMP Administrator for this site is:
Name: (to be filled-in by permittee)
Company: (to be filled-in by permittee)
Phone: (to be filled-in by permittee)
E-mail: (to be filled-in by permittee)
5.2 Best Management Practices (BMP’s) for Stormwater Pollution Prevention
Beginning from mobilization, and throughout the entire construction of the project, erosion control
devices shall be installed to ensure minimal pollutant migration. These erosion control devices may be
installed in phases, or not at all, depending on actual conditions encountered at the site. It is the
responsibility of the Contractor to make the determination as to what practices should be employed and
when. In the event that a review agency deems BMPs to be insufficient, it shall be the responsibility of
the contractor to implement modifications as directed.
Best Management Practices (BMPs) are loosely defined as a method, activity, maintenance procedure,
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 11
or other management practice for reducing the amount of pollution entering a water body. The term
originated from rules and regulations in Section 208 of the Clean Water Act.
Details for Structural and Non-Structural BMPs have been included in Appendix B. These details should
be used for additional information on installation and maintenance of BMPs specified in this report. It is
also intended to serve as a resource for additional BMPs that may be appropriate for the site that have
not specifically been mentioned in the report.
5.3 Structural Practices for Erosion and Sediment Control
Structural BMPs are physical devices that are implemented to prevent erosion from happening or to
limit erosion once it occurs. These devices can be temporary or permanent, and installation of individual
components will vary depending on the stage of construction.
A table depicting construction sequence and BMP application/removal has been placed on the “Dynamic
Site Plan” to help document the implementation of these BMPs. Refer to the Stormwater Management
Plan Static Site Plan in the Appendix for the assumed location of all BMPs. Construction Details for
Temporary BMPs are located in the Appendix for reference.
Again, the final determination for which BMP’s will be installed, where they will be located, and when
they will be installed shall be made by the Contractor, along with all documentation throughout the
construction process.
Silt Fencing (Phase I)
Silt fencing shall be provided to prevent migration of sediment off-site or into adjacent properties. All
silt fencing shall be installed prior to any land disturbing activity (demolition, stockpiling, stripping,
grading, etc.). Silt fencing is to be installed prior to site excavation or earthwork activities.
Inspections of the silt fence should identify tears or holes in the material and should check for slumping
fence or undercut areas that allow flows to bypass the fencing. Damaged sections of the silt fence
should be removed to maintain BMP effectiveness, typically before it reaches a depth of 6 inches.
It is suggested that silt fencing be located along the entire project boundary except at the entrance to
the site off E. Vine Drive and Jerome Street. Refer to the Erosion Control Plan (Sheet EC1) for additional
clarification.
Sediment Control Log – aka “Straw Wattles” (Phase I)
A Sediment Control Log is a linear roll made of natural materials, such as straw, coconut fiber, or other
fibrous material trenched into the ground and held with a wooden stake. Sediment Control Logs can be
used in many instances. Examples include perimeter control for stockpiles, as part of inlet protection
designs, as check dams in small drainage ways, on disturbed slopes to shorten flow lengths, or in lieu of
silt fencing (where appropriate).
Sediment Control Logs should be inspected for excess sediment accumulation. Sediment should be
removed prior to reaching half the height of the log.
At a minimum, Sediment Control Logs should be used around soil stockpiles (including landscape
material). There are swales within the project site that should have several straw wattles. Refer to the
Erosion Control Plan (EROS1) for additional clarification.
Vehicle Tracking Control Pads (Phase I)
Vehicle tracking control pads shall be provided to minimize tracking of mud and sediment onto paved
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 12
surfaces and neighboring roadways. All vehicle tracking control pads shall be installed prior to any land
disturbing activity (demolition – as necessary, stockpiling, stripping, grading, etc.). Location of vehicle
tracking control pads will be located at any and all existing and future vehicle accesses being used during
any of the construction phases, except for the emergency access to N. College Avenue. These locations
will primarily be dictated by openings in the temporary construction fencing that is expected to be
installed. Vehicle tracking control pads are to be installed prior to demolition (as appropriate), site
excavation or earthwork activities.
Vehicle tracking pads should be inspected for degradation and aggregate material should be replaced as
needed. If the area becomes clogged with water, excess sediment should be removed. Aggregate
material should remain rough, and at no point should aggregate be allowed to compact in a manner that
causes the tracking pad to stop working as intended.
Suggested location for vehicle tracking pad is at the designated entrance into the site off E. Vine Drive
and Jerome Street.
Inlet Protection (Phase I & II)
Inlet protection shall be provided for existing inlets to prevent sediment transport from adjacent
earthwork disturbance. Installation of these filters shall occur before adjacent earth disturbing activities
(Phase I implementation). Wattle type filters are to be implemented for new and existing inlets where
asphalt does not exist. For these inlets, if pavement is constructed adjacent to the structure or if the
area adjacent to the inlet is changed such that the wattle type filter is no longer effective, it shall be the
responsibility of the Contractor to ensure that an appropriate method is used instead. For example, the
wattle filter could be reused, or a gravel-block inlet filter may be installed. It will be left to the discretion
of the Contractor as to whether replacement of any inlet filter is necessary.
Inlet protection should be inspected regularly for tears that can result in sediment entering an inlet.
Inlet protection should also be inspected for sediment accumulation upstream of the inlet, and
sediment should be removed when the less than half of the capacity is available, or per manufacturer
specifications.
All proposed Nyloplast Inlets need inlet protection after installation to protect the storm lines and
downstream infrastructure. There are existing curb inlets along N. College Avenue and E. Vine Drive that
will need to be protected via Inlet Protection. Refer to the Erosion Control Plan (Sheet EC1 & EC2) for
additional clarification.
Erosion Control Blankets (Phase II)
A temporary degradable rolled erosion control product composed of natural flexible fibers shall be used
on all seeded slopes 3:1 and greater (excluding mulched shrub bed areas). Erosion control blankets
should be utilized to provide erosion control and to facilitate vegetation establishment. During
installation, it is important to ensure that no gaps or voids exist under the material and that all corners
of the material are secured using stakes and trenching. Stakes should be made of materials that are
biodegradable. Continuous contact between the product and the soil is necessary to avoid failure.
Erosion Control Blankets should be inspected regularly for signs of erosion, including beneath the mat. If
voids are apparent, they should be filled with suitable soil. Inspections should also identify loose or
damaged stakes, as well as loose portions of the blanket. If deficiencies are found, they should be
repaired or replaced. There are no slopes greater than 3:1 on this project.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 13
Concrete Washout Area (Phase II)
A concrete washout should be provided on the site. The washout can be lined or unlined excavated pits
in the ground, commercially manufactured prefabricated containers, or aboveground holding areas. The
concrete washout must be located a minimum of 400 feet from any natural drainage way or body of
water, and at least 1000 feet from any wells or drinking water sources. Washout areas should not be
located in an area where shallow groundwater may be present. Contractor shall clearly show the desired
location and access to the Concrete Washout Area on the Stormwater Management Plan - Dynamic Site
Plan. Contractor shall place a Vehicle Tracking Pad if the selected location for the Concrete Washout
Area is detached from pavement. Clear signage identifying the concrete washout should also be
provided.
The Concrete Washout Area should be inspected regularly. Particular attention should be paid to
signage to ensure that the area is clearly marked. Confirmation that the washout is being used should
also be noted to ensure that other undesignated areas of the site are not being used incorrectly as a
concrete washout.
It is suggested the Contractor build a concrete wash out pit for this project near the vehicle tracking
pads. Refer to the Erosion Control Plan (Sheet EC2) for additional clarification.
Permanent/Established Vegetation (Phase IV)
Permanent or established vegetation and landscaping is considered a permanent form of sediment and
erosion control for common open spaces, steep slopes and areas not exposed to prolonged scour
velocities, or acute incipient motion bed shear stresses that will create soil erosion, rill formation and
subsequent sediment transport. Areas where the previous conditions apply will contain sufficient
permanent BMPs, such as riprap or cobble mulch. Permanent vegetation shall conform to the approved
Landscape Plan prepared by BHA Design, Inc. Permanent/Established vegetation and hardscape defines
Phase IV of development.
5.4 Non-Structural Practices for Erosion and Sediment Control
Non-Structural BMPs are practices or activities that are implemented to prevent erosion from
happening or to limit erosion once it occurs. These BMPs can be a practice resulting in physical change
to the site, such as mulching or slope stabilization. They can also result in behavioral changes on the site,
such as changes to construction phasing to minimize exposure to weather elements, or increased
employee awareness gained through training.
Protection of Existing Vegetation (Phases I-IV)
Protection of existing vegetation on a construction site can be accomplished through installation of a
construction fence around the area requiring protection. In cases where up-gradient areas are
disturbed, it may also be necessary to install perimeter controls to minimize sediment loading to
sensitive areas, such as wetlands.
Trees that are to remain after construction is complete must be protected. Most tree roots grow within
the top 12”-18” of soil, and soil compaction is a significant threat to tree health. As such, particular care
should be taken to avoid activities within the drip-line of the tree. Direct equipment damage should also
be prevented. The most effective way to ensure the health of trees is to establish a protection zone at
the drip-line of the tree to prevent unintended activity in the area directly surrounding the tree.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 14
Fencing should be inspected and repaired when needed. If damage occurs to a tree, an arborist should
be consulted on how to care for the tree. If a tree is damage beyond repair, the City Forester should be
consulted on remediation measures.
At a minimum, protection to all trees identified for retention on the plans by The City of Fort Collins
Stockpile Management (Phases I-III)
Stockpile management should be utilized to minimize erosion and sediment transport from soil
stockpiles. In general, soil stockpiles should be located a minimum of 100 feet from any drainage way
and 50 feet from any storm sewer inlets. Where practical, choose a stockpile location that will remain
undisturbed for the longest period of time as the phases of construction progress. Sediment control
BMPs should be placed around the perimeter of the stockpile, and a designated access point on the
upstream side of the stockpile should be identified. BMPs such as surface roughening, temporary
seeding, mulching, erosion control blankets, or soil binders should be used to stabilize the stockpile
surface.
As a part of stockpile management, regular inspections of the perimeter controls should be completed.
If BMPs have been utilized to stabilize the surface of the stockpile, they should be inspected and
repaired as needed.
While soil stockpiles are not expected with this project, it is possible that foundation excavation or the
delivery landscaping material may generate temporary stockpiles. The location of any such stockpiles
shall be the responsibility of the SWMP Administrator.
Mulching (Phase I-III)
Mulching helps reduce erosion by protecting bare soil from rainfall impact, increasing infiltration, and
reducing runoff. Although often applied in conjunction with temporary or permanent seeding, it can also
be used for temporary stabilization of areas that cannot be reseeded due to seasonal constraints. The
most common type of mulch used is hay or grass that is crimped into the soil to keep it secure. However,
crimping may not be practical on slopes steeper than three to one (3H:1V). The Contractor shall mulch
all planted areas within twenty-four (24) hours after planting. Only weed-free and seed-free straw
mulch may be used. Straw mulch should be applied at two (2) tons per acre, and shall be adequately
secured by crimping, tackifier, netting or blankets. Hydraulic mulching may also be used on steep slopes
or where access is limited. In the case that hydraulic mulching is utilized, the Contractor shall use wood
cellulose fibers mixed with water at two thousand to two thousand five hundred (2,000-2,500) pounds
per acre and organic tackifier at one hundred to four hundred (100-400) pounds per acre.
The Contractor is responsible in applying wood chip mulch to all planted trees and shrubs as shown on
the Landscape Plan prepared by BHA Design, Inc.
Wind Erosion/Dust Control (Phase I-IV)
Wind Erosion and Dust Control BMP’s help to keep soil particles from entering the air as a result of land
disturbing construction activities. Attached at the end of the Appendix B is the Fort Collins Dust
Prevention and Control Manual. The purpose of this manual is to establish minimum requirements
consistent with nationally recognize BMP’s for controlling fugitive dust emissions and to describe
applicable best management practices to prevent, minimize, and mitigate off-property transport or off-
vehicle transport of fugitive dust emissions pursuant to Chapter 12, Article X of the Fort Collins City Code
(§12-150 et. seq) for specific dust generating activities and sources. Examples include use of a water
truck or irrigation/sprinkler system to wet the top layer of disturbed soil, seeding and mulching, soil
binders, or wind fences.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 15
Please refer to the last three pages of Appendix B for the Dust Control Plan. A Dust Control Plan is
required for all development projects or construction sites with greater than five (5) acres in size. This
project is less than five acres in size.
Street Sweeping (Phases I -IV)
Street sweeping should be used to remove sediment that has been tracked onto adjacent roadways.
Roadways should be inspected at least once a day, and sediment should be removed as needed. A check
of the area inlet protection should be completed after sweeping to ensure nothing was displaced during
sweeping operations. Street sweeping can reduce the sediment washed into the existing storm drain
system. Street sweeping may be necessary on the existing hardscape areas which receive runoff from
the disturbed areas.
Good Housekeeping Practices (All phases)
Good housekeeping practices that will prevent pollution associated with solid, liquid, and hazardous
construction-related materials and wastes should be implemented throughout the project. Examples of
good housekeeping include providing an appropriate location for waste management containers,
establishing proper building material staging areas, designating paint and concrete washout areas,
establishing proper equipment/vehicle fueling and maintenance practices. Development of a spill
prevention and response plan is another example of Good Housekeeping practices that should be used
on the project. The following items are detailed examples of some of the good housekeeping practices
that should be utilized throughout the project. It should be noted that a complete list of practices and
detailed discussion regarding good housekeeping has been included within the Potential Pollution
Sources section of this report.
5.5 Phased BMP Installation
It is important to recognize the four (4) major Development Phases as defined by the State of Colorado’s
Stormwater Discharge Permit (SDP). These four development phases (referred to as Sequencing by the
City of Fort Collins) have been distinguished to aid in the appropriate timing of
installation/implementation of BMPs at different stages of the construction process. These phases are
described as follows:
Phase I – Grading Stage; BMPs for initial installation of perimeter controls
Phase II – Infrastructure Stage; BMPs for utility, paving and curb installation
Phase III – Vertical Construction Stage; BMPs for individual building construction.
Phase IV – Permanent BMPs and final site stabilization.
The following is a rough estimate of the anticipated construction sequence for site improvements. The
schedule outlined below is subject to change as the project progresses and as determined by the
General Contractor.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 16
Table 1 – Preliminary Permit and Construction Schedule
TASK BEGINNING
DATE ENDING DATE "BMP-PHASE OF
DEVELOPMENT"
Development Construction
Permit Issued by City of Fort
Collins
July 2023 July 2023 I
Overlot Grading (Demolition) July 2023 July 2023 I
Utility Installation July 2023 August 2023 II
Building Construction August 2023 April 2024 III
Final Stabilization March 2024 April 2024 IV
Included in the back map pockets are two Site Plans: a “Static” Site Plan and a “Dynamic” Site Plan. The
“Static” plan serves to display the overall management plan all at once. However, proper
implementation of BMPs does not occur at once, and certain BMPs may move location in the
construction process; therefore, the “Dynamic” Site Plan is intended for the Contractor to write in the
BMP symbols to document the location and time the BMPs are installed and maintained throughout the
entire construction process.
5.6 BMP Inspection
All temporary erosion control facilities shall be inspected at a minimum of once every two (2) weeks and
after each significant storm event or snowmelt. Repairs or reconstruction of BMPs, as necessary, shall
occur as soon as possible in order to ensure the continued performance of their intended function. It is
the responsibility of the SWMP Administrator to conduct bi-weekly inspections, maintain BMPs if
needed, to keep records of site conditions and inspections, and to update the SWMP as necessary.
The construction site perimeter, disturbed areas, all applicable/installed erosion and sediment control
measures, and areas used for material storage that are exposed to precipitation shall be inspected for
evidence of, or the potential for, pollutants entering the drainage system. Erosion and sediment control
measures identified in the SWMP shall be observed to ensure that they are operating correctly.
Attention should be paid to areas that have a significant potential for stormwater pollution, such as
demolition areas, concrete washout locations, and vehicle entries to the site. The inspection must be
documented to ensure compliance with the permit requirements.
5.7 BMP Maintenance
Any BMP’s not operating in accordance with the SWMP must be addressed as soon as possible,
immediately in most cases, to prevent the discharge of pollutants. If modifications are necessary, such
modifications shall be documented so that the SWMP accurately reflects on-site conditions. The SWMP
needs to accurately represent field conditions at all times.
Uncontrolled releases of mud, muddy water, or measurable amounts of sediment found off-site will be
recorded with a brief explanation of the measures taken to clean-up the sediment that has left the site,
as well as the measures taken to prevent future releases. This record shall be made available to the
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 17
appropriate public agencies (Colorado Department of Public Health and Environment, Water Quality
Control Division; Environmental Protection Agency; City of Fort Collins; etc.) upon request.
Preventative maintenance of all temporary and permanent erosion control BMPs shall be provided in
order to ensure the continued performance of their intended function. Temporary erosion control
measures are to be removed after the site has been sufficiently stabilized as determined by the City of
Fort Collins. Maintenance activities and actions to correct problems shall be noted and recorded during
inspections.
Inspection and maintenance procedures specific to each BMP identified with this SWMP are discussed in
Section 3. Details have also been included with Appendix B.
5.8 Record Keeping
Documentation of site inspections must be maintained. The following items are to be recorded and kept
with the SWMP:
· Date of Inspection
· Name(s) and title(s) of personnel making the inspection
· Location(s) of sediment discharges or other pollutants from the site
· Location(s) of BMP’s that need to be maintained
· Location(s) of BMP’s that failed to operate as designed or proved inadequate
· Locations(s) where additional BMPs are needed that were not in place at the time of inspection
· Deviations from the minimum inspection schedule
· Descriptions of corrective action taken to remedy deficiencies that have been identified
· The report shall contain a signed statement indicating the site is in compliance with the permit to the best of
the signer’s knowledge and belief after corrective actions have been taken.
Provided within Appendix E of this SWMP is an Example Inspection Log to aid in the record keeping of
BMP inspections and maintenance. Photographs, field notebooks, drawings and maps should be
included by the SWMP Administrator when appropriate.
In addition to the Inspection Log, records should be kept documenting:
· BMP maintenance and operation
· Stormwater contamination
· Contacts with suppliers
· Notes on the need for and performance of preventive maintenance and other repairs
· Implementation of specific items in the SWMP
· Training events (given or attended)
· Events involving materials handling and storage
· Contacts with regulatory agencies and personnel
· Notes of employee activities, contact, notifications, etc.
Records of spills, leaks, or overflows that result in the discharge of pollutants must be documented and
maintained. A record of other spills that are responded to, even if they do not result in a discharge of
pollutants, should be made. Information that should be recorded for all occurrences includes the time
and date, weather conditions, reasons for the spill, etc. Some spills may need to be reported to
authorities immediately. Specifically, a release of any chemical, oil, petroleum product, sewage, etc.,
which may enter waters of the State of Colorado (which include surface water, ground water and dry
gullies or storm sewers leading to surface water) must be reported to the CDPHE.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 18
Additionally, the “Dynamic Site Plan” is intended to be a “living” document where the SWMP
Administrator can hand write the location of BMPs as they are installed to appropriately reflect the
current site conditions. Included on the “Dynamic Site Plan” is a “Table of Construction Sequence and
BMP Application/Removal” that the SWMP Administrator can use to document when BMPs were
installed or removed in conjunction with construction activities. These items have been included as an
aid to the SWMP Administrator, and other methods of record keeping are at his or her discretion.
This Stormwater Management Plan (both the text and map) is not a static document. It is a
dynamic device intended to be kept current and logged as construction takes place. It shall be
the responsibility of the SWMP Administrator and/or the permit holder (or applicant thereof)
to ensure the plan is properly maintained and followed. Diligent administration is critical,
including processing the Notice to Proceed and noting on the Stormwater Management Plan
the dates that various construction activities occur and respective BMPs are installed and/or
removed.
6.0 Final Stabilization and Long-Term Stormwater Management
6.1 Final Stabilization
Final stabilization of the site will mostly be achieved through hardscape and landscape. Native seed is
proposed in the detention areas. Landscaped areas are shown to be irrigated turf and rain garden seed
mix.
All disturbed areas will be seeded, crimped and mulched within 24 hours of seeding per the FCDCM
Chapter 2 Section 6.1.4.9. Seeding shall be drilled to a depth of soil amendments such as compost, peat,
aged manure, or other similar materials, shall also be utilized. Soil amendments shall be tilled into the
soil to a minimum depth of 6” and should comply with the requirements found in City Code Section 12-
132 (refer also to Land Use Code 3.8.21).
Native seed shall be installed per the Landscape plan seed mix and installation instructions. In the case
that a seed mix is not specified, a Fort Collins approved seed mix shall be used. Seed shall be drill seeded
to a depth as specified by the manufacturer. Please see the approved landscape plans for additional
details.
Non-seed stabilization is expected to be completed soon after hardscape construction is complete.
Seeded area will require more time to establish and will be irrigated as necessary to establish growth.
As defined by the Colorado Department of Public Health and Environment (CDPHE) in the General
Permit Application for Stormwater Discharges, “Final stabilization is reached when all soil disturbing
activities at the site have been completed, and uniform vegetative cover has been established with a
density of at least 70 percent of pre-disturbance levels or equivalent permanent, physical erosion
reduction methods have been employed.” Establishment of 70 percent is required for a determination
for project closure by the City of Fort Collins.
6.2 Long-Term Stormwater Management
The primary method of long-term stormwater management will be the use of bio-retention basins. The
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 19
bio-retention basins will remove suspended sediment and pollutants from developed runoff prior to
entering drainage facilities downstream of the site.
After stabilization, prior to project closure, all sediment shall be removed from storm piping per FCDCM
Chapter 2 Section 6.1.4.9.
All disturbed areas will receive permanent paving or will be vegetated per the Landscape Plan. Bio-
retention treatment will provide significant water quality enhancement and will serve the long-term
stormwater management goals for this project.
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 20
7.0 Additional SWMP and BMP Resources
Mile High Flood District
Urban Storm Drainage Criteria Manual - Volume 3 “Best Management Practices”
Colorado Department of Transportation
Erosion Control and Stormwater Quality Guide
BMP Field Academy
EPA Menu of BMP’s
Construction Site Storm Water Runoff Control
International Stormwater Best Management (BMP) Database
Rocky Mountain Education Center
Rocky Mountain Education Center
Red Rocks Community College, Lakewood
Keep It Clean Partnership
Boulder
ADDRESS:
200 S. College Ave. Suite 10
Fort Collins, CO 80524
PHONE: 970.221.4158
FAX: 970.221.4159
WEBSITE:
www.northernengineering.com
Powerhouse 2
Stormwater Management Plan 21
References
1. Final Drainage Report and Erosion Control Report for Powerhouse 2, Northern Engineering,
March 14, 2023 (NE Project No. 207-030)
2. Soil Resource Report for Larimer County Area, Colorado, Natural Resources Conservation
Service, United States Department of Agriculture.
3. Urban Storm Drainage Criteria Manual, Volumes 1-3, Mile High Flood Control District,
Wright-McLaughlin Engineers, Denver, Colorado, Revised April 2008.
APPENDIX A
SITE MAPS
S
S
S
S
SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SS SSSSSS SSSSSSSSSSSSSSS
VAULT
ELEC
GGGSSSSSSSS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS SSSSSSSSSSVAULT
ELEC
VAULT
ELEC
VAULT
ELEC
VAULT
ELEC
ELEC
T
VAULT
F.O.F.O.
D
CONTROL
IRR
CONTROL
IRR
GAS
ELEC
BRKR
T SGGGGGGGG
GGGGGGGGGGGGGGGXS
SSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSOHUOHUD FE
SGGGG
G/ / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / /
/
/
// / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / /FE
S
FE
S
FE
SST
STST
STST
STFESFESFES
VAULT
ELEC
GASSSSS
/ / / / / / / /S
D GCTV CTV CTV CTV CTV
G G G G G
CTV CTV CTV CTV CTV CTV CTV
CTV
VAULT
CABLE
CONTROL
IRR
CONTROL
IRR
CONTROL
IRR
CONTROL
IRR SSSFSFSFSFSFSFSF SF SF SF SF SF SF SF SF SF SF SF SF SF SF SF SFSFSFSFSFCF
CF
CF
CF CF
CF
CF
CF
C
F
CF CF
CF
CF
CF
CF
CF
CF
CF
CF
EAST VINE DRIVECOLLEGE AVENUEJEROME STREETLAKE
C
A
N
A
L
JEROME STREET LLC,
216 E OAK ST
JEROME STREET STATION LLC,
742 N COLLEGE AVE
LMC VENTURES LLC,
742 N COLLEGE AVE
CITY OF FORT COLLINS
405 N COLLEGE AVE
MORAK KAREN LLC
622 N COLLEGE AVE
CITY OF FORT COLLINS,
740 N COLLEGE AVE
SF
SF
SF
SF
SF
SF
SF
SF
SF
SFCF
CF
CF
CF
CF
CF
SF
SFLODLODLODLODLOD LOD
LOD LOD LOD LOD
LODLOD LOD LOD LOD LOD LOD LOD LOD LOD
LODLODLOD LOD LOD
LODLOD LODLOD LOD LODLODLODLODLODLODLODLODLODLODLODLOD
LOD
LOD
LOD
LOD LOD
LOD
LOD
LO
D
L
O
D
LOD LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
NORTH
( IN FEET )
0
1 INCH = 40 FEET
40 40 80 120
PROPOSED CONTOUR
PROPOSED STORM SEWER
PROPOSED SWALE
EXISTING CONTOUR
PROPOSED CURB & GUTTER
LEGEND:
SheetPOWERHOUSE 2These drawings areinstruments of serviceprovided by NorthernEngineering Services, Inc.and are not to be used forany type of constructionunless signed and sealed bya Professional Engineer inthe employ of NorthernEngineering Services, Inc.NOT FOR CONSTRUCTIONREVIEW SETof 37
EC1INITIAL EROSION CONTROL PLAN31
CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU
DIG, GRADE, OR EXCAVATE FOR THE MARKING OF
UNDERGROUND MEMBER UTILITIES.
CALL UTILITY NOTIFICATION CENTER OF
COLORADO
Know what'sbelow.
before you dig.Call
R
TABLE OF CONSTRUCTION SEQUENCE AND BMP APPLICATION
Project: POWERHOUSE 2
CONSTRUCTION PHASE MOBILIZATION DEMOLITION GRADING
BEST MANAGEMENT PRACTICES (BMPS)
STRUCTURAL "INSTALLATION"
Silt Fence Barriers *
Flow Barriers (Wattles) *
Inlet Filter Bags *
Vegetative
Temporary Seeding Planting
Mulching / Sealant
Permanent Seeding Planting
Sod Installation
Rolled Products : Netting / Blankets / Mats
Contour Furrows (Ripping / Disking)
Rock Bags *
UTILITIES
INSTALLATION
FLAT WORK
INSTALLATION
VERTICAL
INSTALLATION LANDSCAPE DEMOBILIZATION
Vehicle Tracking Pad *
* All Temporary BMPs to be Removed once Construction is Complete
Any prior inlets that
could use protecting
Anytime the site will sit dormant longer than 30 Days
Anytime the site will sit dormant longer than 30 Days
Anytime the site will sit dormant longer than 30 Days
Riprap
Construction Fence*
EROSION CONTROL NOTES:
1.IT SHOULD BE NOTED THAT ANY EROSION CONTROL PLAN SERVES ONLY AS A GUIDELINE TO THE CONTRACTOR.
STAGING AND/OR PHASING OF BEST MANAGEMENT PRACTICES (BMPs) IS EXPECTED. ADDITIONAL AND/OR DIFFERENT
BMPs FROM THOSE ORIGINALLY DEPICTED MAY BE NECESSARY DURING CONSTRUCTION DUE TO CHANGING SITE
CONDITIONS OR AS REQUIRED BY LOCAL AUTHORITIES.
2.THIS EROSION CONTROL PLAN IS SCHEMATIC IN NATURE. AS SUCH, GRAPHICAL SYMBOLS MAY NOT BE TO SCALE, NOR
ARE THEY NECESSARILY SHOWN IN THEIR EXACT LOCATION.
3.THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL PERMITTING (CITY, STATE DISCHARGE PERMIT, ETC.) AND
COMPLIANCE WITH GOVERNING AUTHORITIES. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR (OR PERMIT
HOLDER) TO ENSURE EROSION CONTROL MEASURES ARE PROPERLY MAINTAINED AND FOLLOWED.
4.CONTRACTOR SHALL IMPLEMENT THE APPROPRIATE EROSION CONTROL MEASURES ACCORDING THE THE
CONSTRUCTION SEQUENCING AND LEVEL OF SITE STABILIZATION.
5.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR ALL STORM DRAINS, SWALES, UNTIL SITE IS
FULLY STABILIZED.
6.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR DOWNSPOUT CONNECTIONS, TO THE STORM
DRAIN SYSTEM, UNTIL CONNECTION IS ESTABLISHED WITH DOWNSPOUT.
7.INLET PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPE AND CONDITION (i.e.,
STAKE-DRIVEN WATTLES FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)
8.CONTRACTOR IS RESPONSIBLE FOR STABILIZING ALL SLOPES, PARTICULARLY THOSE STEEPER THAN 6:1. CRIMP
MULCHING, HYDRO MULCHING, EROSION MATS, TEMPORARY IRRIGATION, AND ADDITIONAL WATTLES OR SILT FENCING
MAY BE NECESSARY TO ESTABLISH VEGETATIVE COVER AND STABILIZE THE SLOPE.
9.CONTRACTOR IS RESPONSIBLE FOR PREVENTING SEDIMENT FROM UNSTABILIZED LANDSCAPE AREAS FROM
MIGRATING ONTO AND ENTERING THE RAIN GARDEN SYSTEMS UNTIL UPGRADIENT TRIBUTARY AREAS ARE FULLY
STABILIZED.
10.ADDITIONAL WATTLES, SILT FENCE, OR OTHER MEASURES, MAY BE NECESSARY TO ENSURE THE BUILDING PAD IS
STABILIZED THROUGHOUT CONSTRUCTION. WATTLES SHALL BE PROVIDED AROUND THE BUILDING PAD SIDES TO
ENSURE AT NO TIME SHALL SEDIMENT BE ALLOWED TO CROSS THE PUBLIC SIDEWALKS.
11.CONTRACTOR SHALL IMPLEMENT APPROPRIATE PERIMETER PROTECTION FOR AREAS DIRECTING DRAINAGE OFFSITE.
PERIMETER PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPE AND CONDITION
(i.e., STAKE-DRIVEN SEDIMENT CONTROL LOGS OR SILT FENCE FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)
12.FUELING FACILITIES SHALL BE LOCATED AT LEAST ONE HUNDRED (100) FEET FROM NATURAL BODY OF WATER,
WETLAND, NATURAL DRAINAGE WAY OR MANMADE DRAINAGE WAY. THE FUEL TANKS AND FUELING AREA MUST BE SET
IN A CONTAINMENT AREA THAT WILL NOT ALLOW A FUEL SPILL TO DIRECTLY FLOW, SEEP, RUN OFF, OR BE WASHED
INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY.
13.CONSTRUCTION WASTE STORAGE (DUMPSTERS) AND PORTABLE SANITATION UNITS (CONSTRUCTION TOILETS) SHALL
BE LOCATED AT LEAST FIFTY (50) FEET FROM ANY STORMWATER INLET, WETLAND, OR DRAINAGE WAY. SAID FACILITIES
MUST BE SET IN A CONTAINMENT AREA THAT WILL NOT ALLOW POLLUTANTS TO DIRECTLY FLOW, SEEP, RUN OFF, OR
BE WASHED INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY. DUMPSTERS SHALL BE LOCATED ON FLAT, STABLE
GROUND, AND CONSTRUCTION TOILETS SHALL BE STAKED DOWN.
14.THE CONTRACTOR AND ALL SUBCONTRACTORS WILL COOPERATE WITH THE CITY'S CONSTRUCTION INSPECTORS BY
CEASING OPERATIONS WHEN WINDS ARE OF SUFFICIENT VELOCITY TO CREATE BLOWING DUST WHICH, IN THE
INSPECTOR'S OPINION, IS HAZARDOUS TO THE PUBLIC HEALTH AND WELFARE.
15.WHERE SEASONAL CONSTRAINTS (E.G., DURING SUMMER AND WINTER MONTHS) INHIBIT PERMANENT SEEDING
OPERATIONS, DISTURBED AREAS WILL BE TREATED WITH MULCH AND MULCH TACKIFIER OR OTHER MATERIALS
APPROVED BY EROSION CONTROL STAFF TO PREVENT EROSION.
16.SEE LANDSCAPE PLANS FOR ADDITIONAL INFORMATION ON PLANTING, REVEGETATION, HARDSCAPE AND OTHER
PERMANENT SITE STABILIZATION METHODS.
17.DIRT AND DEBRIS FROM CONSTRUCTION ACTIVITIES TRACKED ON CITY STREETS SHALL BE KEPT TO A MINIMUM AND
CLEANED IMMEDIATELY OR AT THE SUGGESTION OF THE CITY'S EROSION CONTROL INSPECTOR.
18.CONTRACTOR SHALL KEEP CONSTRUCTION VEHICLES ENTERING AND EXITING SITE TO A MINIMUM.
19.THE CONTRACTOR SHALL, AT ALL TIMES DURING AND AFTER SYSTEM INSTALLATION, PREVENT SEDIMENT, DEBRIS, AND
DIRT FROM ANY SOURCE FROM ENTERING THE RAIN GARDEN SYSTEM. LOOSE MATERIALS SHALL NOT BE STORED ON
THE RAIN GARDEN AREA. MUD AND SEDIMENT-LADEN RUNOFF SHOULD BE KEPT AWAY FROM THE RAIN GARDEN AREA.
TEMPORARILY DIVERT RUNOFF OR INSTALL SEDIMENT CONTROL MEASURES AS NECESSARY TO REDUCE THE AMOUNT
OF SEDIMENT RUN-ON TO THE RAIN GARDEN.
LIMITS OF DISTURBANCE
ROCK SOCK
SCOUR-STOP
WATTLE DIKE
CONCRETE WASH AREA
BALE OUTLET PROTECTION
INLET PROTECTION
VEHICLE TRACKING CONTROL PAD
LOD
AREA INLET PROTECTION
CONSTRUCTION FENCE CF
STAGING AREA
BENCHMARK/BASIS OF BEARING:
1.CONTRACTOR SHALL IMMEDIATELY STABILIZE ALL DISTURBED SLOPES BY
CRIMP MULCHING OR SIMILAR METHODS.
2.SWMP ADMINISTRATOR:
Contact ________________________________
Company ________________________________
Address ________________________________
Phone ________________________________
3.CONTRACTOR TO PROVIDE VEHICLE TRACKING CONTROL FOR CONCRETE
WASHOUT AREA IF ACCESS IS OFF PAVEMENT.
4.REFER TO THE FINAL DRAINAGE REPORT BY NORTHERN ENGINEERING FOR
ADDITIONAL INFORMATION.
5.THE NATURAL HABITAT BUFFER ZONE IS INTENDED TO BE MAINTAINED IN A
NATIVE LANDSCAPE. PLEASE SEE SECTION 3.4.1 OF THE LAND USE CODE
FOR ALLOWABLE USES WITHIN THE NATURAL HABITAT BUFFER ZONE.
GENERAL NOTES:
PROJECT DATUM: NAVD88
City of Fort Collins Benchmark 1-0
On a catch basin at the southeast corner of Vine Dr. and College Ave.
ELEV.=4968.74
City of Fort Collins Benchmark 3-13
Approx. 40 ft south of the Linden St. bridge over the Poudre River, on
the west side of Linden St. , on a storm inlet.
ELEV.=4962.27
Please note: this plan set is using NAVD88 for a vertical datum.
surrounding developments have used NGVD29 unadjusted datum (prior
city of Fort Collins datum) for their vertical datums.
If NGVD29 unadjusted datum (prior city of Fort Collins datum) is required
for any purpose, the following equation should be used:
NGVD29 unadjusted datum (prior city of Fort Collins datum) = NAVD88 -
3.18'
Basis of Bearings
The Basis of Bearings is the West line line of the Southwest Quarter of
Section 1-7-69 as bearing South 00° 38' 34" West (assumed bearing)
and monumented as shown on Plat.
IRRIGATED TURF
NATIVE SEED
SILT FENCE SF
G UGEUGE UGE UGE
UGES UD
UD
UD
UD UD
UD UDUDUDUD
UD
UD
UD
UD
UD
UD
UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGEVAULT
ELEC
GGGVAULT
ELEC
VAULT
ELEC
VAULT
ELEC
VAULT
ELEC
ELEC
T
VAULT
F.O.F.O.
D
CONTROL
IRR
CONTROL
IRR
GAS
ELEC
BRKR
T SGGGGGGGG
GGGGGGGGGGGGGGGXOHUOHUD FE
SGGGG
G/ / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / /
/
/
// / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / /FE
S
FE
S
FE
SST
STST
STST
STFESFESFES
VAULT
ELEC
GAS
/ / / / / / / /D GCTV CTV CTV CTV CTV
G G G G G
CTV CTV CTV CTV CTV CTV CTV
CTV
VAULT
CABLE
CONTROL
IRR
CONTROL
IRR
CONTROL
IRR
CONTROL
IRR
EM
GMTFTF
SF SF SF SF SF SF SF SFSFSFEAST VINE DRIVECOLLEGE AVENUEJEROME STREETLAKE
C
A
N
A
L
JEROME STREET LLC,
216 E OAK ST
JEROME STREET STATION LLC,
742 N COLLEGE AVE
LMC VENTURES LLC,
742 N COLLEGE AVE
CITY OF FORT COLLINS
405 N COLLEGE AVE
MORAK KAREN LLC
622 N COLLEGE AVE
CITY OF FORT COLLINS,
740 N COLLEGE AVE
DETENTION
POND
25:16:18:127:142:138:166:145:135:173:174:177:
1
29:1
48:149:14:16:122:124:1
17:1
21:1 11:16:11
1
2
:
15:165:152:1SF
SFRAIN GARDEN 1
SEE SHEET RG1
SOUTH RAIN GARDEN 1
SEE SHEET RG2
SOUTH RAIN GARDEN 2
SEE SHEET RG2
SOUTH RAIN GARDEN 3
SEE SHEET RG2
CF
CF
CF
CF CF
CF
CF
CF
C
F
CF CF
CF
CF
CF
CF
CF
CF
CF
CF
SF
SF
SF
SF
SF
SF
SF
SF
SF
SFCF
CF
CF
CF
CF
CF
OFF-SITE SANITARY SEWER NOTES:
1.CONTRACTOR TO COORDINATE WITH JEROME
STREET STATION OWNER/DEVELOPER FOR
CONSTRUCTION OF THE MAIN (970-267-7721)
2.IT WILL BE THE RESPONSIBILITY OF
WHOMEVER CONSTRUCTS THE SEWER MAIN
TO STABILIZE THE EXCAVATION AREA.SFSFSFSFSFSFSFSFSF SF SF SF SF SF SF SF SF LODLODLODLODLOD LOD
LOD LOD LOD LOD
LODLOD LOD LOD LOD LOD LOD LOD LOD LOD
LODLODLOD LOD LOD
LODLOD LODLOD LOD LODLODLODLODLODLODLODLODLODLODLODLOD
LOD
LOD
LOD
LOD LOD
LOD
LOD
LO
D
L
O
D
LOD LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
NORTH
( IN FEET )
0
1 INCH = 40 FEET
40 40 80 120
PROPOSED CONTOUR
PROPOSED STORM SEWER
PROPOSED SWALE
EXISTING CONTOUR
PROPOSED CURB & GUTTER
ROCK SOCK
SCOUR-STOP
WATTLE DIKE
CONCRETE WASH AREA
BALE OUTLET PROTECTION
LEGEND:
INLET PROTECTION
VEHICLE TRACKING CONTROL PAD
SheetPOWERHOUSE 2These drawings areinstruments of serviceprovided by NorthernEngineering Services, Inc.and are not to be used forany type of constructionunless signed and sealed bya Professional Engineer inthe employ of NorthernEngineering Services, Inc.NOT FOR CONSTRUCTIONREVIEW SETof 37
EC2INTERIM EROSION CONTROL PLAN32
CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU
DIG, GRADE, OR EXCAVATE FOR THE MARKING OF
UNDERGROUND MEMBER UTILITIES.
CALL UTILITY NOTIFICATION CENTER OF
COLORADO
Know what'sbelow.
before you dig.Call
R
AREA INLET PROTECTION
TABLE OF CONSTRUCTION SEQUENCE AND BMP APPLICATION
Project: POWERHOUSE 2
CONSTRUCTION PHASE MOBILIZATION DEMOLITION GRADING
BEST MANAGEMENT PRACTICES (BMPS)
STRUCTURAL "INSTALLATION"
Silt Fence Barriers *
Flow Barriers (Wattles) *
Inlet Filter Bags *
Vegetative
Temporary Seeding Planting
Mulching / Sealant
Permanent Seeding Planting
Sod Installation
Rolled Products : Netting / Blankets / Mats
Contour Furrows (Ripping / Disking)
Rock Bags *
UTILITIES
INSTALLATION
FLAT WORK
INSTALLATION
VERTICAL
INSTALLATION LANDSCAPE DEMOBILIZATION
Vehicle Tracking Pad *
* All Temporary BMPs to be Removed once Construction is Complete
Any prior inlets that
could use protecting
Anytime the site will sit dormant longer than 30 Days
Anytime the site will sit dormant longer than 30 Days
Anytime the site will sit dormant longer than 30 Days
Riprap
Construction Fence*
EROSION CONTROL NOTES:
1.IT SHOULD BE NOTED THAT ANY EROSION CONTROL PLAN SERVES ONLY AS A GUIDELINE TO THE CONTRACTOR.
STAGING AND/OR PHASING OF BEST MANAGEMENT PRACTICES (BMPs) IS EXPECTED. ADDITIONAL AND/OR DIFFERENT
BMPs FROM THOSE ORIGINALLY DEPICTED MAY BE NECESSARY DURING CONSTRUCTION DUE TO CHANGING SITE
CONDITIONS OR AS REQUIRED BY LOCAL AUTHORITIES.
2.THIS EROSION CONTROL PLAN IS SCHEMATIC IN NATURE. AS SUCH, GRAPHICAL SYMBOLS MAY NOT BE TO SCALE, NOR
ARE THEY NECESSARILY SHOWN IN THEIR EXACT LOCATION.
3.THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL PERMITTING (CITY, STATE DISCHARGE PERMIT, ETC.) AND
COMPLIANCE WITH GOVERNING AUTHORITIES. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR (OR PERMIT
HOLDER) TO ENSURE EROSION CONTROL MEASURES ARE PROPERLY MAINTAINED AND FOLLOWED.
4.CONTRACTOR SHALL IMPLEMENT THE APPROPRIATE EROSION CONTROL MEASURES ACCORDING THE THE
CONSTRUCTION SEQUENCING AND LEVEL OF SITE STABILIZATION.
5.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR ALL STORM DRAINS, SWALES, UNTIL SITE IS
FULLY STABILIZED.
6.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR DOWNSPOUT CONNECTIONS, TO THE STORM
DRAIN SYSTEM, UNTIL CONNECTION IS ESTABLISHED WITH DOWNSPOUT.
7.INLET PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPE AND CONDITION (i.e.,
STAKE-DRIVEN WATTLES FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)
8.CONTRACTOR IS RESPONSIBLE FOR STABILIZING ALL SLOPES, PARTICULARLY THOSE STEEPER THAN 6:1. CRIMP
MULCHING, HYDRO MULCHING, EROSION MATS, TEMPORARY IRRIGATION, AND ADDITIONAL WATTLES OR SILT FENCING
MAY BE NECESSARY TO ESTABLISH VEGETATIVE COVER AND STABILIZE THE SLOPE.
9.CONTRACTOR IS RESPONSIBLE FOR PREVENTING SEDIMENT FROM UNSTABILIZED LANDSCAPE AREAS FROM
MIGRATING ONTO AND ENTERING THE RAIN GARDEN SYSTEMS UNTIL UPGRADIENT TRIBUTARY AREAS ARE FULLY
STABILIZED.
10.ADDITIONAL WATTLES, SILT FENCE, OR OTHER MEASURES, MAY BE NECESSARY TO ENSURE THE BUILDING PAD IS
STABILIZED THROUGHOUT CONSTRUCTION. WATTLES SHALL BE PROVIDED AROUND THE BUILDING PAD SIDES TO
ENSURE AT NO TIME SHALL SEDIMENT BE ALLOWED TO CROSS THE PUBLIC SIDEWALKS.
11.CONTRACTOR SHALL IMPLEMENT APPROPRIATE PERIMETER PROTECTION FOR AREAS DIRECTING DRAINAGE OFFSITE.
PERIMETER PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPE AND CONDITION
(i.e., STAKE-DRIVEN SEDIMENT CONTROL LOGS OR SILT FENCE FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)
12.FUELING FACILITIES SHALL BE LOCATED AT LEAST ONE HUNDRED (100) FEET FROM NATURAL BODY OF WATER,
WETLAND, NATURAL DRAINAGE WAY OR MANMADE DRAINAGE WAY. THE FUEL TANKS AND FUELING AREA MUST BE SET
IN A CONTAINMENT AREA THAT WILL NOT ALLOW A FUEL SPILL TO DIRECTLY FLOW, SEEP, RUN OFF, OR BE WASHED
INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY.
13.CONSTRUCTION WASTE STORAGE (DUMPSTERS) AND PORTABLE SANITATION UNITS (CONSTRUCTION TOILETS) SHALL
BE LOCATED AT LEAST FIFTY (50) FEET FROM ANY STORMWATER INLET, WETLAND, OR DRAINAGE WAY. SAID FACILITIES
MUST BE SET IN A CONTAINMENT AREA THAT WILL NOT ALLOW POLLUTANTS TO DIRECTLY FLOW, SEEP, RUN OFF, OR
BE WASHED INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY. DUMPSTERS SHALL BE LOCATED ON FLAT, STABLE
GROUND, AND CONSTRUCTION TOILETS SHALL BE STAKED DOWN.
14.THE CONTRACTOR AND ALL SUBCONTRACTORS WILL COOPERATE WITH THE CITY'S CONSTRUCTION INSPECTORS BY
CEASING OPERATIONS WHEN WINDS ARE OF SUFFICIENT VELOCITY TO CREATE BLOWING DUST WHICH, IN THE
INSPECTOR'S OPINION, IS HAZARDOUS TO THE PUBLIC HEALTH AND WELFARE.
15.WHERE SEASONAL CONSTRAINTS (E.G., DURING SUMMER AND WINTER MONTHS) INHIBIT PERMANENT SEEDING
OPERATIONS, DISTURBED AREAS WILL BE TREATED WITH MULCH AND MULCH TACKIFIER OR OTHER MATERIALS
APPROVED BY EROSION CONTROL STAFF TO PREVENT EROSION.
16.SEE LANDSCAPE PLANS FOR ADDITIONAL INFORMATION ON PLANTING, REVEGETATION, HARDSCAPE AND OTHER
PERMANENT SITE STABILIZATION METHODS.
17.DIRT AND DEBRIS FROM CONSTRUCTION ACTIVITIES TRACKED ON CITY STREETS SHALL BE KEPT TO A MINIMUM AND
CLEANED IMMEDIATELY OR AT THE SUGGESTION OF THE CITY'S EROSION CONTROL INSPECTOR.
18.CONTRACTOR SHALL KEEP CONSTRUCTION VEHICLES ENTERING AND EXITING SITE TO A MINIMUM.
19.THE CONTRACTOR SHALL, AT ALL TIMES DURING AND AFTER SYSTEM INSTALLATION, PREVENT SEDIMENT, DEBRIS, AND
DIRT FROM ANY SOURCE FROM ENTERING THE RAIN GARDEN SYSTEM. LOOSE MATERIALS SHALL NOT BE STORED ON
THE RAIN GARDEN AREA. MUD AND SEDIMENT-LADEN RUNOFF SHOULD BE KEPT AWAY FROM THE RAIN GARDEN AREA.
TEMPORARILY DIVERT RUNOFF OR INSTALL SEDIMENT CONTROL MEASURES AS NECESSARY TO REDUCE THE AMOUNT
OF SEDIMENT RUN-ON TO THE RAIN GARDEN.
CONSTRUCTION FENCE CF
STAGING AREA
BENCHMARK/BASIS OF BEARING:
1.CONTRACTOR SHALL IMMEDIATELY STABILIZE ALL DISTURBED SLOPES BY
CRIMP MULCHING OR SIMILAR METHODS.
2.SWMP ADMINISTRATOR:
Contact ________________________________
Company ________________________________
Address ________________________________
Phone ________________________________
3.CONTRACTOR TO PROVIDE VEHICLE TRACKING CONTROL FOR CONCRETE
WASHOUT AREA IF ACCESS IS OFF PAVEMENT.
4.REFER TO THE FINAL DRAINAGE REPORT BY NORTHERN ENGINEERING FOR
ADDITIONAL INFORMATION.
5.THE NATURAL HABITAT BUFFER ZONE IS INTENDED TO BE MAINTAINED IN A
NATIVE LANDSCAPE. PLEASE SEE SECTION 3.4.1 OF THE LAND USE CODE
FOR ALLOWABLE USES WITHIN THE NATURAL HABITAT BUFFER ZONE.
6.REFER TO LANDSCAPE PLANS FOR SEED MIXES.
GENERAL NOTES:
IRRIGATED TURF
NATIVE SEED
LIMITS OF DISTURBANCE LOD
SILT FENCE SF
PROJECT DATUM: NAVD88
City of Fort Collins Benchmark 1-0
On a catch basin at the southeast corner of Vine Dr. and College Ave.
ELEV.=4968.74
City of Fort Collins Benchmark 3-13
Approx. 40 ft south of the Linden St. bridge over the Poudre River, on
the west side of Linden St. , on a storm inlet.
ELEV.=4962.27
Please note: this plan set is using NAVD88 for a vertical datum.
surrounding developments have used NGVD29 unadjusted datum (prior
city of Fort Collins datum) for their vertical datums.
If NGVD29 unadjusted datum (prior city of Fort Collins datum) is required
for any purpose, the following equation should be used:
NGVD29 unadjusted datum (prior city of Fort Collins datum) = NAVD88 -
3.18'
Basis of Bearings
The Basis of Bearings is the West line line of the Southwest Quarter of
Section 1-7-69 as bearing South 00° 38' 34" West (assumed bearing)
and monumented as shown on Plat.
G UGEUGE UGE UGE
UGES UD
UD
UD
UD UD
UD UDUDUDUD
UD
UD
UD
UD
UD
UD
UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGE UGEVAULT
ELEC
GGGVAULT
ELEC
VAULT
ELEC
VAULT
ELEC
VAULT
ELEC
ELEC
T
VAULT
F.O.F.O.
D
CONTROL
IRR
CONTROL
IRR
GAS
ELEC
BRKR
T SGGGGGGGG
GGGGGGGGGGGGGGGXOHUOHUD FE
SGGGG
G/ / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / /
/
/
// / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / /FE
S
FE
S
FE
SST
STST
STST
STFESFESFES
VAULT
ELEC
GAS
/ / / / / / / /D GCTV CTV CTV CTV CTV
G G G G G
CTV CTV CTV CTV CTV CTV CTV
CTV
VAULT
CABLE
CONTROL
IRR
CONTROL
IRR
CONTROL
IRR
CONTROL
IRR
EM
GMTFTF
EAST VINE DRIVECOLLEGE AVENUEJEROME STREETLAKE
C
A
N
A
L
JEROME STREET LLC,
216 E OAK ST
JEROME STREET STATION LLC,
742 N COLLEGE AVE
LMC VENTURES LLC,
742 N COLLEGE AVE
CITY OF FORT COLLINS
405 N COLLEGE AVE
MORAK KAREN LLC
622 N COLLEGE AVE
CITY OF FORT COLLINS,
740 N COLLEGE AVE
24:1 9:16:131:19:129:144:138:1122:157:153:144:155:16
8
:
174:136:1
65
:
1
46:15:120:124:1
87:15
0
:
1
19:15:15:111:1
24:1
17:1
21:1
12:1 5:16:11
1
2
:
1
POND OUTLET
STRUCTURE A
TYPE D INLET
TYPE R INLET
COMBINATION INLET
RAIN GARDEN
EMERGENCY SPILLWAY
RAIN GARDEN
EMERGENCY SPILLWAY
RAIN GARDEN
EMERGENCY SPILLWAYRAIN GARDEN
EMERGENCY SPILLWAY LODLODLODLODLOD LOD
LOD LOD LOD LOD
LODLOD LOD LOD LOD LOD LOD LOD LOD LOD
LODLODLOD LOD LOD
LODLOD LODLOD LOD LODLODLODLODLODLODLODLODLODLODLODLOD
LOD
LOD
LOD
LOD LOD
LOD
LOD
LO
D
L
O
D
LOD LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
LOD
DETENTION
POND
RAIN GARDEN 1
SEE SHEET RG1
SOUTH RAIN GARDEN 1
SEE SHEET RG2
SOUTH RAIN GARDEN 2
SEE SHEET RG2
SOUTH RAIN GARDEN 3
SEE SHEET RG2
NORTH
( IN FEET )
0
1 INCH = 40 FEET
40 40 80 120
PROPOSED CONTOUR
PROPOSED STORM SEWER
PROPOSED SWALE
EXISTING CONTOUR
PROPOSED CURB & GUTTER
LEGEND:
SheetPOWERHOUSE 2These drawings areinstruments of serviceprovided by NorthernEngineering Services, Inc.and are not to be used forany type of constructionunless signed and sealed bya Professional Engineer inthe employ of NorthernEngineering Services, Inc.NOT FOR CONSTRUCTIONREVIEW SETof 37
EC3FINAL EROSION CONTROL PLAN33
CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU
DIG, GRADE, OR EXCAVATE FOR THE MARKING OF
UNDERGROUND MEMBER UTILITIES.
CALL UTILITY NOTIFICATION CENTER OF
COLORADO
Know what'sbelow.
before you dig.Call
R
TABLE OF CONSTRUCTION SEQUENCE AND BMP APPLICATION
Project: POWERHOUSE 2
CONSTRUCTION PHASE MOBILIZATION DEMOLITION GRADING
BEST MANAGEMENT PRACTICES (BMPS)
STRUCTURAL "INSTALLATION"
Silt Fence Barriers *
Flow Barriers (Wattles) *
Inlet Filter Bags *
Vegetative
Temporary Seeding Planting
Mulching / Sealant
Permanent Seeding Planting
Sod Installation
Rolled Products : Netting / Blankets / Mats
Contour Furrows (Ripping / Disking)
Rock Bags *
UTILITIES
INSTALLATION
FLAT WORK
INSTALLATION
VERTICAL
INSTALLATION LANDSCAPE DEMOBILIZATION
Vehicle Tracking Pad *
* All Temporary BMPs to be Removed once Construction is Complete
Any prior inlets that
could use protecting
Anytime the site will sit dormant longer than 30 Days
Anytime the site will sit dormant longer than 30 Days
Anytime the site will sit dormant longer than 30 Days
Riprap
Construction Fence*
EROSION CONTROL NOTES:
1.IT SHOULD BE NOTED THAT ANY EROSION CONTROL PLAN SERVES ONLY AS A GUIDELINE TO THE CONTRACTOR.
STAGING AND/OR PHASING OF BEST MANAGEMENT PRACTICES (BMPs) IS EXPECTED. ADDITIONAL AND/OR DIFFERENT
BMPs FROM THOSE ORIGINALLY DEPICTED MAY BE NECESSARY DURING CONSTRUCTION DUE TO CHANGING SITE
CONDITIONS OR AS REQUIRED BY LOCAL AUTHORITIES.
2.THIS EROSION CONTROL PLAN IS SCHEMATIC IN NATURE. AS SUCH, GRAPHICAL SYMBOLS MAY NOT BE TO SCALE, NOR
ARE THEY NECESSARILY SHOWN IN THEIR EXACT LOCATION.
3.THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL PERMITTING (CITY, STATE DISCHARGE PERMIT, ETC.) AND
COMPLIANCE WITH GOVERNING AUTHORITIES. IT SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR (OR PERMIT
HOLDER) TO ENSURE EROSION CONTROL MEASURES ARE PROPERLY MAINTAINED AND FOLLOWED.
4.CONTRACTOR SHALL IMPLEMENT THE APPROPRIATE EROSION CONTROL MEASURES ACCORDING THE THE
CONSTRUCTION SEQUENCING AND LEVEL OF SITE STABILIZATION.
5.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR ALL STORM DRAINS, SWALES, UNTIL SITE IS
FULLY STABILIZED.
6.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR DOWNSPOUT CONNECTIONS, TO THE STORM
DRAIN SYSTEM, UNTIL CONNECTION IS ESTABLISHED WITH DOWNSPOUT.
7.INLET PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPE AND CONDITION (i.e.,
STAKE-DRIVEN WATTLES FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)
8.CONTRACTOR IS RESPONSIBLE FOR STABILIZING ALL SLOPES, PARTICULARLY THOSE STEEPER THAN 6:1. CRIMP
MULCHING, HYDRO MULCHING, EROSION MATS, TEMPORARY IRRIGATION, AND ADDITIONAL WATTLES OR SILT FENCING
MAY BE NECESSARY TO ESTABLISH VEGETATIVE COVER AND STABILIZE THE SLOPE.
9.CONTRACTOR IS RESPONSIBLE FOR PREVENTING SEDIMENT FROM UNSTABILIZED LANDSCAPE AREAS FROM
MIGRATING ONTO AND ENTERING THE RAIN GARDEN SYSTEMS UNTIL UPGRADIENT TRIBUTARY AREAS ARE FULLY
STABILIZED.
10.ADDITIONAL WATTLES, SILT FENCE, OR OTHER MEASURES, MAY BE NECESSARY TO ENSURE THE BUILDING PAD IS
STABILIZED THROUGHOUT CONSTRUCTION. WATTLES SHALL BE PROVIDED AROUND THE BUILDING PAD SIDES TO
ENSURE AT NO TIME SHALL SEDIMENT BE ALLOWED TO CROSS THE PUBLIC SIDEWALKS.
11.CONTRACTOR SHALL IMPLEMENT APPROPRIATE PERIMETER PROTECTION FOR AREAS DIRECTING DRAINAGE OFFSITE.
PERIMETER PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPE AND CONDITION
(i.e., STAKE-DRIVEN SEDIMENT CONTROL LOGS OR SILT FENCE FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)
12.FUELING FACILITIES SHALL BE LOCATED AT LEAST ONE HUNDRED (100) FEET FROM NATURAL BODY OF WATER,
WETLAND, NATURAL DRAINAGE WAY OR MANMADE DRAINAGE WAY. THE FUEL TANKS AND FUELING AREA MUST BE SET
IN A CONTAINMENT AREA THAT WILL NOT ALLOW A FUEL SPILL TO DIRECTLY FLOW, SEEP, RUN OFF, OR BE WASHED
INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY.
13.CONSTRUCTION WASTE STORAGE (DUMPSTERS) AND PORTABLE SANITATION UNITS (CONSTRUCTION TOILETS) SHALL
BE LOCATED AT LEAST FIFTY (50) FEET FROM ANY STORMWATER INLET, WETLAND, OR DRAINAGE WAY. SAID FACILITIES
MUST BE SET IN A CONTAINMENT AREA THAT WILL NOT ALLOW POLLUTANTS TO DIRECTLY FLOW, SEEP, RUN OFF, OR
BE WASHED INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY. DUMPSTERS SHALL BE LOCATED ON FLAT, STABLE
GROUND, AND CONSTRUCTION TOILETS SHALL BE STAKED DOWN.
14.THE CONTRACTOR AND ALL SUBCONTRACTORS WILL COOPERATE WITH THE CITY'S CONSTRUCTION INSPECTORS BY
CEASING OPERATIONS WHEN WINDS ARE OF SUFFICIENT VELOCITY TO CREATE BLOWING DUST WHICH, IN THE
INSPECTOR'S OPINION, IS HAZARDOUS TO THE PUBLIC HEALTH AND WELFARE.
15.WHERE SEASONAL CONSTRAINTS (E.G., DURING SUMMER AND WINTER MONTHS) INHIBIT PERMANENT SEEDING
OPERATIONS, DISTURBED AREAS WILL BE TREATED WITH MULCH AND MULCH TACKIFIER OR OTHER MATERIALS
APPROVED BY EROSION CONTROL STAFF TO PREVENT EROSION.
16.SEE LANDSCAPE PLANS FOR ADDITIONAL INFORMATION ON PLANTING, REVEGETATION, HARDSCAPE AND OTHER
PERMANENT SITE STABILIZATION METHODS.
17.DIRT AND DEBRIS FROM CONSTRUCTION ACTIVITIES TRACKED ON CITY STREETS SHALL BE KEPT TO A MINIMUM AND
CLEANED IMMEDIATELY OR AT THE SUGGESTION OF THE CITY'S EROSION CONTROL INSPECTOR.
18.CONTRACTOR SHALL KEEP CONSTRUCTION VEHICLES ENTERING AND EXITING SITE TO A MINIMUM.
19.THE CONTRACTOR SHALL, AT ALL TIMES DURING AND AFTER SYSTEM INSTALLATION, PREVENT SEDIMENT, DEBRIS, AND
DIRT FROM ANY SOURCE FROM ENTERING THE RAIN GARDEN SYSTEM. LOOSE MATERIALS SHALL NOT BE STORED ON
THE RAIN GARDEN AREA. MUD AND SEDIMENT-LADEN RUNOFF SHOULD BE KEPT AWAY FROM THE RAIN GARDEN AREA.
TEMPORARILY DIVERT RUNOFF OR INSTALL SEDIMENT CONTROL MEASURES AS NECESSARY TO REDUCE THE AMOUNT
OF SEDIMENT RUN-ON TO THE RAIN GARDEN.
ROCK SOCK
SCOUR-STOP
WATTLE DIKE
CONCRETE WASH AREA
BALE OUTLET PROTECTION
INLET PROTECTION
VEHICLE TRACKING CONTROL PAD
AREA INLET PROTECTION
CONSTRUCTION FENCE CF
STAGING AREA
BENCHMARK/BASIS OF BEARING:
1.CONTRACTOR SHALL IMMEDIATELY STABILIZE ALL DISTURBED SLOPES BY
CRIMP MULCHING OR SIMILAR METHODS.
2.SWMP ADMINISTRATOR:
Contact ________________________________
Company ________________________________
Address ________________________________
Phone ________________________________
3.CONTRACTOR TO PROVIDE VEHICLE TRACKING CONTROL FOR CONCRETE
WASHOUT AREA IF ACCESS IS OFF PAVEMENT.
4.REFER TO THE FINAL DRAINAGE REPORT BY NORTHERN ENGINEERING FOR
ADDITIONAL INFORMATION.
5.THE NATURAL HABITAT BUFFER ZONE IS INTENDED TO BE MAINTAINED IN A
NATIVE LANDSCAPE. PLEASE SEE SECTION 3.4.1 OF THE LAND USE CODE
FOR ALLOWABLE USES WITHIN THE NATURAL HABITAT BUFFER ZONE.
GENERAL NOTES:
IRRIGATED TURF
NATIVE SEED
LIMITS OF DISTURBANCE LOD
SILT FENCE SF
PROJECT DATUM: NAVD88
City of Fort Collins Benchmark 1-0
On a catch basin at the southeast corner of Vine Dr. and College Ave.
ELEV.=4968.74
City of Fort Collins Benchmark 3-13
Approx. 40 ft south of the Linden St. bridge over the Poudre River, on
the west side of Linden St. , on a storm inlet.
ELEV.=4962.27
Please note: this plan set is using NAVD88 for a vertical datum.
surrounding developments have used NGVD29 unadjusted datum (prior
city of Fort Collins datum) for their vertical datums.
If NGVD29 unadjusted datum (prior city of Fort Collins datum) is required
for any purpose, the following equation should be used:
NGVD29 unadjusted datum (prior city of Fort Collins datum) = NAVD88 -
3.18'
Basis of Bearings
The Basis of Bearings is the West line line of the Southwest Quarter of
Section 1-7-69 as bearing South 00° 38' 34" West (assumed bearing)
and monumented as shown on Plat.
GUGE UGEUGEUGEUGESUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGE VAULTELECG
G
GVAULTELECVAULTELECVAULTELECVAULTELECELECTVAULTF.O.F.O.DCONTROLIRRCONTROLIRRGASELECBRKRT SGGGGGGGGGG G G G G G GGGGGGGG
XOHU OHUD
FESG
G
G
GG/ / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / /FESF
ESF
ESSTSTSTSTSTSTFESF
ESFESVAULTELECGAS/ / / / / / / /DGCTVCTVCTVCTVCTVGGGGGCTVCTVCTVCTVCTVCTVCTVCTVVAULTCABLECONTROLIRRCONTROLIRRCONTROLIRRCONTROLIRREMGM TFTFEAST VINE DRIVECOLLEGE AVENUE
JEROME STREET LAKE CANALJEROME STREET LLC,216 E OAK STJEROME STREET STATION LLC,742 N COLLEGE AVELMC VENTURES LLC,742 N COLLEGE AVECITY OF FORT COLLINS405 N COLLEGE AVEMORAK KAREN LLC622 N COLLEGE AVECITY OF FORT COLLINS,740 N COLLEGE AVESheetPOWERHOUSE 2
NOT FOR CO
N
S
T
R
U
C
T
I
O
N
REVIEW SE
T
of 37DYN1EROSION CONTROL PLAN (DYNAMIC)##NORTH( IN FEET )01 INCH = 40 FEET404080120CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOUDIG, GRADE, OR EXCAVATE FOR THE MARKING OFUNDERGROUND MEMBER UTILITIES.CALL UTILITY NOTIFICATION CENTER OFCOLORADOKnow what'sbelow.before you dig.CallREROSION CONTROL NOTES:1.IT SHOULD BE NOTED THAT ANY EROSION CONTROL PLAN SERVES ONLY AS A GUIDELINE TOTHE CONTRACTOR. STAGING AND/OR PHASING OF BEST MANAGEMENT PRACTICES (BMPs) ISEXPECTED. ADDITIONAL AND/OR DIFFERENT BMPs FROM THOSE ORIGINALLY DEPICTED MAY BENECESSARY DURING CONSTRUCTION DUE TO CHANGING SITE CONDITIONS OR AS REQUIRED BYLOCAL AUTHORITIES.2.THIS EROSION CONTROL PLAN IS SCHEMATIC IN NATURE. AS SUCH, GRAPHICAL SYMBOLS MAYNOT BE TO SCALE, NOR ARE THEY NECESSARILY SHOWN IN THEIR EXACT LOCATION.3.THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL PERMITTING (CITY, STATE DISCHARGEPERMIT, ETC.) AND COMPLIANCE WITH GOVERNING AUTHORITIES. IT SHALL BE THERESPONSIBILITY OF THE CONTRACTOR (OR PERMIT HOLDER) TO ENSURE EROSION CONTROLMEASURES ARE PROPERLY MAINTAINED AND FOLLOWED.4.CONTRACTOR SHALL IMPLEMENT THE APPROPRIATE EROSION CONTROL MEASURESACCORDING THE THE CONSTRUCTION SEQUENCING AND LEVEL OF SITE STABILIZATION.5.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR ALL STORM DRAINS,SWALES, UNTIL SITE IS FULLY STABILIZED.6.CONTRACTOR SHALL IMPLEMENT APPROPRIATE INLET PROTECTION FOR DOWNSPOUTCONNECTIONS, TO THE STORM DRAIN SYSTEM, UNTIL CONNECTION IS ESTABLISHED WITHDOWNSPOUT.7.INLET PROTECTION SHALL BE ADAPTED, AS NECESSARY, TO THE SURROUNDING SURFACE TYPEAND CONDITION (i.e., STAKE-DRIVEN WATTLES FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT,ETC.)8.CONTRACTOR IS RESPONSIBLE FOR STABILIZING ALL SLOPES, PARTICULARLY THOSE STEEPERTHAN 6:1. CRIMP MULCHING, HYDRO MULCHING, EROSION MATS, TEMPORARY IRRIGATION, ANDADDITIONAL WATTLES OR SILT FENCING MAY BE NECESSARY TO ESTABLISH VEGETATIVE COVERAND STABILIZE THE SLOPE.9.CONTRACTOR IS RESPONSIBLE FOR PREVENTING SEDIMENT FROM UNSTABILIZED LANDSCAPEAREAS FROM MIGRATING ONTO AND ENTERING THE PERMEABLE PAVER SYSTEMS UNTILUPGRADIENT TRIBUTARY AREAS ARE FULLY STABILIZED.10.ADDITIONAL WATTLES, SILT FENCE, OR OTHER MEASURES, MAY BE NECESSARY TO ENSURETHAT EACH BUILDING PAD IS STABILIZED THROUGHOUT CONSTRUCTION. WATTLES SHALL BEPROVIDED AROUND BUILDING PAD SIDES TO ENSURE AT NO TIME SHALL SEDIMENT BE ALLOWEDTO CROSS THE PUBLIC SIDEWALKS.11.CONTRACTOR SHALL IMPLEMENT APPROPRIATE PERIMETER PROTECTION FOR AREASDIRECTING DRAINAGE OFFSITE. PERIMETER PROTECTION SHALL BE ADAPTED, AS NECESSARY,TO THE SURROUNDING SURFACE TYPE AND CONDITION (i.e., STAKE-DRIVEN SEDIMENT CONTROLLOGS OR SILT FENCE FOR BARE SOIL, GRAVEL SOCKS FOR PAVEMENT, ETC.)12.FUELING FACILITIES SHALL BE LOCATED AT LEAST ONE HUNDRED (100) FEET FROM NATURALBODY OF WATER, WETLAND, NATURAL DRAINAGE WAY OR MANMADE DRAINAGE WAY. THE FUELTANKS AND FUELING AREA MUST BE SET IN A CONTAINMENT AREA THAT WILL NOT ALLOW AFUEL SPILL TO DIRECTLY FLOW, SEEP, RUN OFF, OR BE WASHED INTO A BODY OF WATER,WETLAND OR DRAINAGE WAY.13.CONSTRUCTION WASTE STORAGE (DUMPSTERS) AND PORTABLE SANITATION UNITS(CONSTRUCTION TOILETS) SHALL BE LOCATED AT LEAST FIFTY (50) FEET FROM ANYSTORMWATER INLET, WETLAND, OR DRAINAGE WAY. SAID FACILITIES MUST BE SET IN ACONTAINMENT AREA THAT WILL NOT ALLOW POLLUTANTS TO DIRECTLY FLOW, SEEP, RUN OFF,OR BE WASHED INTO A BODY OF WATER, WETLAND OR DRAINAGE WAY. DUMPSTERS SHALL BELOCATED ON FLAT, STABLE GROUND, AND CONSTRUCTION TOILETS SHALL BE STAKED DOWN.14.THE CONTRACTOR AND ALL SUBCONTRACTORS WILL COOPERATE WITH THE CITY'SCONSTRUCTION INSPECTORS BY CEASING OPERATIONS WHEN WINDS ARE OF SUFFICIENTVELOCITY TO CREATE BLOWING DUST WHICH, IN THE INSPECTOR'S OPINION, IS HAZARDOUS TOTHE PUBLIC HEALTH AND WELFARE.15.WHERE SEASONAL CONSTRAINTS (E.G., DURING SUMMER AND WINTER MONTHS) INHIBITPERMANENT SEEDING OPERATIONS, DISTURBED AREAS WILL BE TREATED WITH MULCH ANDMULCH TACKIFIER OR OTHER MATERIALS APPROVED BY EROSION CONTROL STAFF TO PREVENTEROSION.16.SEE LANDSCAPE PLANS FOR ADDITIONAL INFORMATION ON PLANTING, REVEGETATION,HARDSCAPE AND OTHER PERMANENT SITE STABILIZATION METHODS.17.DIRT AND DEBRIS FROM CONSTRUCTION ACTIVITIES TRACKED ON CITY STREETS SHALL BE KEPTTO A MINIMUM AND CLEANED IMMEDIATELY OR AT THE SUGGESTION OF THE CITY'S EROSIONCONTROL INSPECTOR.18.CONTRACTOR SHALL KEEP CONSTRUCTION VEHICLES ENTERING AND EXITING SITE TO AMINIMUM.19.THE CONTRACTOR SHALL, AT ALL TIMES DURING AND AFTER SYSTEM INSTALLATION, PREVENTSEDIMENT, DEBRIS, AND DIRT FROM ANY SOURCE FROM ENTERING THE PERMEABLE PAVEMENTSYSTEM. LOOSE MATERIALS SHALL NOT BE STORED ON THE PERMEABLE PAVEMENT AREA. MUDAND SEDIMENT-LADEN RUNOFF SHOULD BE KEPT AWAY FROM THE PAVEMENT AREA.TEMPORARILY DIVERT RUNOFF OR INSTALL SEDIMENT CONTROL MEASURES AS NECESSARY TOREDUCE THE AMOUNT OF SEDIMENT RUN-ON TO THE PAVEMENT. SURFACE PROTECTION COULDINCLUDE COVERING AREAS OF THE PAVEMENT, PROVIDING ALTERNATIVE CONSTRUCTIONVEHICLE ACCESS, AND PROVIDING EDUCATION TO ALL PARTIES WORKING ONSITE.TABLE OF CONSTRUCTION SEQUENCE AND BMP APPLICATIONProject: POWERHOUSE 2CONSTRUCTION PHASEMOBILIZATIONDEMOLITIONGRADINGBEST MANAGEMENT PRACTICES (BMPS)STRUCTURAL "INSTALLATION"Silt Fence Barriers * Flow Barriers (Wattles) * Inlet Filter Bags *Vegetative Temporary Seeding Planting Mulching / Sealant Permanent Seeding Planting Sod Installation Rolled Products : Netting / Blankets / Mats Contour Furrows (Ripping / Disking) Rock Bags *UTILITIESINSTALLATIONFLAT WORKINSTALLATIONVERTICALINSTALLATIONLANDSCAPEDEMOBILIZATION Vehicle Tracking Pad * * All Temporary BMPs to be Removed once Construction is CompleteAny prior inlets thatcould use protectingAnytime the site will sit dormant longer than 30 DaysAnytime the site will sit dormant longer than 30 DaysAnytime the site will sit dormant longer than 30 DaysRiprapPROPOSED CONTOURPROPOSED STORM SEWERPROPOSED SWALEEXISTING CONTOURPROPOSED CURB & GUTTERLEGEND:LIMITS OF DISTURBANCEROCK SOCKSCOUR-STOP WATTLE DIKECONCRETE WASH AREABALE OUTLET PROTECTIONINLET PROTECTIONVEHICLE TRACKING CONTROL PADLODAREA INLET PROTECTIONCONSTRUCTION FENCECFSTAGING AREABENCHMARK/BASIS OF BEARING:1.CONTRACTOR SHALL IMMEDIATELY STABILIZE ALL DISTURBED SLOPES BYCRIMP MULCHING OR SIMILAR METHODS.2.SWMP ADMINISTRATOR:Contact________________________________Company________________________________Address________________________________Phone________________________________3.CONTRACTOR TO PROVIDE VEHICLE TRACKING CONTROL FOR CONCRETEWASHOUT AREA IF ACCESS IS OFF PAVEMENT.4.REFER TO THE FINAL DRAINAGE REPORT BY NORTHERN ENGINEERING FORADDITIONAL INFORMATION.5.THE NATURAL HABITAT BUFFER ZONE IS INTENDED TO BE MAINTAINED IN ANATIVE LANDSCAPE. PLEASE SEE SECTION 3.4.1 OF THE LAND USE CODE FOR ALLOWABLE USES WITHIN THE NATURAL HABITAT BUFFER ZONE.GENERAL NOTES:BENCHMARK: #1CITY OF FORT COLLINS BENCHMARK 1-00Elevation=4968.74BENCHMARK: #2CITY OF FORT COLLINS BENCHMARK 3-13Elevation=4962.27Basis of BearingsThe Basis of Bearings is the West line line of the Southwest Quarter ofSection 1-7-69 as bearing South 00° 38' 34" West (assumed bearing)and monumented as shown on Plat.IRRIGATED TURFNATIVE SEEDSILT FENCESF
APPENDIX B
EROSION CONTROL DETAILS
SheetPOWERHOUSE 2These drawings areinstruments of serviceprovided by NorthernEngineering Services, Inc.and are not to be used forany type of constructionunless signed and sealed bya Professional Engineer inthe employ of NorthernEngineering Services, Inc.NOT FOR CONSTRUCTIONREVIEW SETof 37
EC4EROSION CONTROL DETAILS34
VTC
ROCK SOCK SECTION ROCK SOCK PLAN
ROCK SOCK JOINTING
GRADATION TABLE
SIEVE SIZE
MASS PERCENT
PASSING SQUARE
MESH SIEVES
NO. 4
2"100
1-1/2"90-100
1"20-55
3/4"0-15
3/8"0-5
MATCHES SPECIFICATIONS FOR NO. 4 COARSE AGGREGATE FOR
CONCRETE PER AASHTO M43. ALL ROCK SHALL BE FRACTURED FACE,
ALL SIDES
RS
001 CONCRETE WASHOUT AREA 002 ROCK SOCK 003 VEHICLE TRACKING PAD
004 SILT FENCE
SF
CWA
005 CURB INLET PROTECTION
IP
POSTS
PREASSEMBLED SILT FENCE POSTS SHALL OVERLAP
AT JOINTS SO THAT NO
GAPS EXIST IN SILT FENCE.
NOTE:
THICKNESS OF GEOTEXTILE
HAS BEEN EXAGGERATED.POST SHALL BE JOINED AS SHOWN, THEN
ROTATED 180° IN DIRECTION SHOWN AND
DRIVEN INTO THE GROUND.
SILT FENCE JOINTS
DRIVE POSTS VERTICALLY INTO THE GROUND TO A MINIMUM DEPTH OF 18".
EXCAVATE A TRENCH APPROXIMATELY 4" WIDE AND 4" DEEP ALONG THE
LINE OF POSTS AND UPSLOPE FROM THE BARRIER.
ANCHOR TRENCH SHALL BE EXCAVATED BY HAND, WITH TRENCHER, OR
WITH SILT FENCE INSTALLATION MACHINE. NO ROAD GRADERS, BACKHOES,
ETC. SHALL BE USED.
NOT LESS THAN THE BOTTOM 1' OF THE SILT FENCE FABRIC SHALL BE
BURIED IN THE TRENCH.
THE TRENCH SHALL BE COMPACTED BY HAND, WITH "JUMPING JACK" OR BY
WHEEL ROLLING. COMPACTION SHALL BE SUCH THAT THE SILT FENCE
RESISTS BEING PULLED OUT OF ANCHOR TRENCH BY HAND.
SILT FENCE INDICATED IN THE PLANS SHALL BE INSTALLED PRIOR TO ANY
LAND-DISTURBING ACTIVITIES.
USE WOOD POSTS OR OTHER MATERIAL AS ACCEPTED BY THE CITY.
INSTALLATION NOTES:
1.
2.
3.
4.
5.
6.
7.
THE CONTRACTOR SHALL INSPECT SILT FENCE EVERY TWO WEEKS AND
AFTER SIGNIFICANT STORM EVENTS AND MAKE REPAIRS OR CLEAN OUT
UPSTREAM SEDIMENT AS NECESSARY.
SEDIMENT ACCUMULATED UPSTREAM OF SILT FENCE SHALL BE REMOVED
WHEN THE UPSTREAM SEDIMENT REACHES A DEPTH OF 6".
SILT FENCE SHALL BE REMOVED WHEN THE UPSTREAM DISTURBED AREA IS
STABILIZED AND GRASS COVER IS ACCEPTED BY THE CITY. IF ANY
DISTURBED AREA EXISTS AFTER REMOVAL, IT SHALL BE SEEDED AND
MULCHED OR OTHERWISE STABILIZED IN A MANNER ACCEPTED BY THE CITY.
MAINTENANCE NOTES:
1.
2.
3.
4" MIN.
4" MIN.
1 12" x 1 12" WOODEN FENCE POSTS
SF
006 SWALE WATTLE DIKE 007
CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU
DIG, GRADE, OR EXCAVATE FOR THE MARKING OF
UNDERGROUND MEMBER UTILITIES.
CALL UTILITY NOTIFICATION CENTER OF
COLORADO
Know what'sbelow.
before you dig.Call
R
WITH NO GAPS (TYP.)
TIGHTLY ABUTTING
ENTRENCH 3"FLOWFLOWNOTE:
ENTRENCH WATTLE 3" INTO
NATURAL GROUND AT THE OUTSIDE
EDGE OF CONCRETE APRON
WATTLE
WATTLE
OR
NOTE:
INSTALLATION OF WATTLE STAKES
MAY VARY
(10" MIN. DIAMETER)
IPA
DROP INLET WATTLE FILTER
008 CALCULATION TABLE PER FCSCM CH. 2, SEC. 6.1.3.1
Description Estimated Quantity Units
Total Disturbed Project Area 5.6 Acre
Total "Onsite" Area of Disturbance 4.73 Acre
Total "Offsite" Area of Disturbance 0.87 Acre
Total Storage/Staging Area 1 Acre
Total Haul Roads Area N/A
Construction vehicle traffic Area N/A
Est. Percent of Project Area Exposed 100 %
Est. Percent Vegetation Cover 5 %
Existing Soil Type B Table Mountain loam, 0 to 1% slopes
Groundwater Depth 8 Feet
Number of Phases w/Project N/A
Total volume of imported (+) / exported (-) materials 8,900 Cubic Yds.
Total area of stockpilling of fill or borrow areas off site 0 Sq. feet
Steepest Slope 8:1 H:V
Distance from riparian area or sensitive area 0 Feet
SheetPOWERHOUSE 2These drawings areinstruments of serviceprovided by NorthernEngineering Services, Inc.and are not to be used forany type of constructionunless signed and sealed bya Professional Engineer inthe employ of NorthernEngineering Services, Inc.NOT FOR CONSTRUCTIONREVIEW SETof 37
EC5EROSION CONTROL DETAILS35
001
CALL 2 BUSINESS DAYS IN ADVANCE BEFORE YOU
DIG, GRADE, OR EXCAVATE FOR THE MARKING OF
UNDERGROUND MEMBER UTILITIES.
CALL UTILITY NOTIFICATION CENTER OF
COLORADO
Know what'sbelow.
before you dig.Call
R
SECTION G-G
G
PLAN
G
BOP
BALE OUTLET PROTECTION
APPENDIX C
LANDSCAPE PLAN
EMGM TFTFGGUGE UGE UGEUGEUGEUGEUGESIR FWUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUDUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGEUGE UGES SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS SS
SSSSSSSSSSSSSSSSSSSSSSSVAULTELECG
G SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SS
SS
SS
SSVAULTELECVAULTELECVAULTELECVAULTELECHYDELECTVAULTF.O.F.O.DCONTROLIRRCONTROLIRRGASELECBRKRT SWWWWWWWWWWWWWWWWWWWWWWWWEEEEEEEEEEEEEEEEEEEEEEEEEE E E EEEEEEEFOFO FOFOFOFOFOFOFOFOFOFOFOFO FO FO FO FO FO FO FO FO FO FOGGGGGGGGGGGGWWWWWWWWWWWWFOFOFOFOFOFOFOFOFO
FOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTW W W W W W W WWWWWWWWWWWWWWWWWWWWWWWWWWWWFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOFOGGGGGGGG GWEEEEEEFOFOFOFOFOFOGGGGGGGGG
XEW W WSW
OSS
SS
SS
SS
SS
SSDFESG
G
GGEEEEE/ / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / // / / / / / / /F
ESF
ESFESSTSTSTSTSTSTF
ESFESFESSTSTSTVAULTELECGASSS
SDGCTVCTVCTVCTVCTVCTVGGGGGGCTVCTVCTVCTVCTVCTVCTVCTVCTVCTVCTVCTVCTVCTVVAULTCABLECONTROLIRRIRRW W W
W
W W
SSN. COLLEGE AVENUEARTERIAL 4-LANE
JEROME STREET
COLLECTOR 2-LANEE. VINE DRIVEARTERIAL 2-LANEPOWERHOUSE 2 CLIMATE SOLUTIONS CAMPUSPROPOSED BUILDING FOOTPRINTNATURAL HABITATBUFFER ZONENON-CONTIGUOUSNATURAL HABITATBUFFER ZONEDRIP LINE OF EXISTINGTREES LAKE CANALMORAK KAREN, LLCZONING: DOWNTOWN DISTRICTPOUDRE RIVER WHITEWATER PARKZONING: DOWNTOWN DISTRICTPROPOSEDSTREET LIGHTRELOCATEDSTREET LIGHTPROPOSED STREET LIGHTPROPOSED POLE LIGHT, TYPRE: LIGHTING PLANLAKE CANALDITCH ESMT100 YRFLOODPLAIN500 YRFLOODPLAINJERMONE ST LLCZONING: COMMUNITY COMMERCIALFIRST CASH FINANCIALSERVICESZONING: SERVICECOMMERCIAL DISTRICTMMMMMMMMMMMMMMMMMMMMMLAKE CANAL DITCH ESMTRRFB PEDESTRIANCROSSING SIGNAL,RE: CIVIL1 PO AN2 PR AM2 PR AM2 CA SP2 PI PO1 BE OC1 BE OC1 AM AB1 BE OC2 BE OC2 AM AB2 PL AC3 CA SP1 AC NE1 AC NE3 PL AC1 QU SH1 QU SH3 CO CO3 QU SH1 AC NE1 AC NE7 CR AM3 AC GI1 FA SY2 FA SY2 CE CA1 CE CA1 CE CA2 FA SY1 CE CA1 AC GI1 FA SY1 FA SY2 FA SY3 QU GA3 CR AM1 AM AB2 CO CO1 JU BC2 JU BC2 JU BC1 JU BC12 SO NU3 IM CY4 IM CY6 PH AR8 BO BA30 BO BA4 SO NU32 PH AR6 SO NU3 PI GL15 PH AR3 BO BA6 BO BA5 BO BA4 BO BA4 BO BA4 BO BA22
'
-
8
"40' TYP.8'16'GAS LINE12'13'-6"12'40'40'6 MA RE3 MA RE6 MA RE2 SH AR4 PR PB2 SH AR2 RI AU2 AM AL2 AM AL1 RO WO3 RO WO1 RO WO3 PR PB4 RO WO2 RH TR2 RH TR3 CH NA3 RI AU3 RI AU2 CH NA4 AM AL2 CH NA2 CH NA10 AR CA5 AT CA5 AT CA2 RH TR2 MA RE4 MA RE3 VI OP4 VI OP4 VI OP6 VI OP5 VI OP4 VI OP6 VI OP13 PO YG7 PR PB8 PR PB2 PR PB3 PR PB4 SY OC4 PR PB8 SY OC2 PI GL1 PI GL9 PR PB3 VI OP3 PO YG4 AT CA6 PH MO5 PH MO4 PH MO3 PH MO6 AM LE5 PH MO2 AM LE6 PH MO8 AM LE6 AT CA6 RH TR3 RH TR5 PH MO5 PH MO6 AT CA5 PH MO4 PH MO7 AM LE4 AM LE4 AR CA5 AR CA3 AR CA6 AR CA6 AM LE6 AR CA3 PH MO3 PH MO6 SY OC5 AM LE7 LI PU14 LI PU6 LI PU6 LI PU8 LI PU7 LI PU7 LI PU10 GA AR5 PE GR8 GA AR5 GA AR8 GA AR2 PA VI2 PA VI4 PA VI4 PE GR2 PE GR4 AP CA8 AP CA22 GA AR6 GA AR1 CO COCITY OF FORT COLLINSSTORMWATERZONING: DOWNTOWN DISTRICT3 PO DE1 AC NEREPAIR LANDSCAPEDISTURBANCESASSOCIATED WITHCONSTRUCTION ANDIMPROVEMENTS, RE:GRADING PLANS.3 PO AN1 PO AN1 PO DE2 PO DE2 PO AN2 PO DE3 PO DE3 CR AM2 SY RE1 SY RE6 AC SA3 AC SA1 CO CO1 JU BC2 JU BC6 PH AR6 BO BA1 PI GL1 PI GLREPAIR LANDSCAPE DISTURBANCESASSOCIATED WITH STORM DRAINAGEIMPROVEMENTS AND NEW ADA RAMPTO PRE-CONSTRUCTION CONDITION2 RH TR2 PH MO3 AM LE7 PE GR20 DI DE9 LU GA6 DI DE8 PE GR20 DI DE5 LU GA5 LU GA4 LU GA6 PE GR5 PA VIRAIN GARDENS,RE: CIVILRAIN GARDEN,RE:CIVILRAIN GARDENS,RE: CIVIL12'MMSheet Number:Project Number:Project:
Client:
C:\USERS\MOLLIESIMPSON\ONEDRIVE - BHADESIGN\PROJECTS\POWERHOUSE 2\DRAWINGS\ACAD\FDP\DWG\2057_LANDSCAPE PLAN.DWGPlot Date:4/19/2023 9:33 AM Plotted By: Mollie BredehoftDate Created:4/19/2023
Produced by:Date:Revision:L1Date:111 S. Meldrum St, Suite 110Fort Collins, CO 80521(970) 223-7577www.bhadesign.comLandscape ArchitectureUrban DesignPlanningLANDSCAPE PLAN
POWERHOUSE 2
CLIMATE SOLUTIONS CAMPUS
FINAL DESIGN REVIEW04/19/202320571.A PERMIT MUST BE OBTAINED FROM THE CITY FORESTER BEFORE ANY TREES OR SHRUBS ASNOTED ON THIS PLAN ARE PLANTED, PRUNED OR REMOVED IN THE PUBLIC RIGHT-OF-WAY. THISINCLUDES ZONES BETWEEN THE SIDEWALK AND CURB, MEDIANS AND OTHER CITY PROPERTY. THISPERMIT SHALL APPROVE THE LOCATION AND SPECIES TO BE PLANTED. FAILURE TO OBTAIN THISPERMIT IS A VIOLATION OF THE CITY OF FORT COLLINS CODE SUBJECT TO CITATION (SECTION27-31) AND MAY ALSO RESULT IN REPLACING OR RELOCATING TREES AND A HOLD ON CERTIFICATEOF OCCUPANCY.2.NO TREES SHALL BE REMOVED DURING THE SONGBIRD NESTING SEASON (FEBRUARY 1 TO JULY 31)WITHOUT FIRST HAVING A PROFESSIONAL ECOLOGIST OR WILDLIFE BIOLOGIST COMPLETE ANESTING SURVEY TO IDENTIFY ANY ACTIVE NESTS EXISTING ON THE PROJECT SITE. IF ACTIVENESTS ARE FOUND, THE CITY ENVIRONMENTAL PLANNER WILL DETERMINE WHETHER ADDITIONALRESTRICTIONS ON TREE REMOVAL AND CONSTRUCTION APPLY.LEGENDDECIDUOUS TREESORNAMENTAL TREEEVERGREEN TREEIRRIGATED SODMULCH PLANTING AREASUPLAND SEEDUPPER RIPARIAN SEEDSHRUBSORNAMENTAL GRASSESPERENNIALSBOULDERSEVERGREEN SHRUBS0' 60' 30'15' NORTH TREE NOTES1.THE NATURAL HABITAT BUFFER ZONE IS INTENDED TO BE MAINTAINED AS A NATIVE LANDSCAPEREFER TO SECTION 3.4.1 OF THE LAND USE CODE FOR ALLOWABLE USES WITHIN THE NATURALHABITAT BUFFER ZONE.NATURAL HABITAT BUFFER ZONE MAINTENANCE AND USESMITIGATION TREESHEET L1LANDSCAPE PLANSHEET L2 LANDSCAPE SCHEDULES AND DETAILSSHEET L4RESTORATION PLANSHEET INDEXSHEET L3LANDSCAPE NOTES1.SEE IRRIGATION PLANS FOR HYDROZONE PLANGENERAL NOTES:
MULCH PER PLANSPECIFIED BACKFILL MATERIAL, WATERAND TAMP TO REMOVE AIR POCKETSCONSTRUCT WATERING RING AROUNDSHRUB AT EDGE OF PLANTING PITTO CONTAIN WATER TO A DEPTH OF 2"2X ROOTBALL DIAMETERSCARIFY SIDES AND BOTTOMPROVIDE FERTILIZER PACKETS,AS / IF SPECIFIEDPLANT ROOT BALL SLIGHTLY ABOVE GRADEINSTALL WOOD MULCH RING TO EXTENTSOF AROUND BASE TO A DEPTH OF 4".DISH MULCH AWAY FROM PLANTSTEMS. MULCH SHALL NOT CONTACTLEAVES OR STEMS OF PLANT.36" TO 48"
6' MIN.2 TIMES ROOTBALL DIA.1" WIDE FABRIC WEBBING WITH GROMMETS &GALVANIZED WIRE OR CABLE, TWIST WIRE TO TIGHTEN.BREATHABLE PAPER OF FABRIC TREE WRAP APPLIEDFROM TRUNK FLARE TO FIRST BRANCH. WRAP PAPERFROM BOTTOM UP WITH SUFFICIENT OVERLAP TO COVERBARK. USE MASKING TAPE TO SECURE.INSTALL 3' DIA. CEDAR WOOD MULCH RING AROUND BASETO A DEPTH OF 4".BACKFILL MATERIALREMOVE TWINE, ROPE, WIRE, AND BURLAP FROM ENTIREROOT BALL.TAMP SOIL AROUND ROOT BALL BASE FIRMLY WITH FOOTPRESSURE SO THAT ROOT BALL DOES NOT SHIFTUNEXCAVATED OR COMPACTED MOUND UNDER THE ROOTBALL TO PREVENT SETTLING.(3) 2"Ø x 6' LODGEPOLE WOODEN TREE STAKES. ADJUST TREE STAKESO THAT TOP IS LEVEL WITH, OR JUST BELOW, FIRST BRANCHES.TREE STAKES TO BE DRIVEN OUTSIDE OF ROOT BALL.TREES NOT WITHIN IRRIGATED TURF SHALL HAVE A6" HIGH EARTHEN SAUCER BEYOND EDGE OF ROOTBALL.60° MAX.45° MIN.GENERAL NOTES1.OVER EXCAVATE PLANTING PIT TO 2 TIMES THE DIAMETER OF THEROOT BALL.2.NYLON WEBBING SHALL NOT TOUCH OR RUB ADJACENT BRANCHES.3.INSTALL 3 GUY WIRES PER TREE, SPACE EVENLY AROUND TREE.4.REMOVE STAKING AT AFTER FIRST GROWING SEASON.PLANT TREE 2"-3" HIGHER THANSURROUNDING SOIL AND TAPER MOUND BACKINTO EXISTING GRADEPLASTIC FLAGGING, OR OTHER VISUALMARKER ON EACH WIRENYLON WEBBING GUY WIRES. ATTACH MIN. OF4' ABOVE FINISH GRADETREES NOT LOCATED WITHIN IRRIGATED TURFSHALL HAVE A 6" HIGH EARTHEN SAUCER BEYONDEDGE OF ROOT BALL.METAL DRIVE ANCHORS, INSTALLED PERMANUFACTURERS DIRECTIONSINSTALL 3' DIA. WOOD MULCH RING AROUND BASETO A DEPTH OF 4".INSTALL SPECIFIED BACKFILLREMOVE MIN. 2/3 OF WIRE BASKET. PULL OFF ALLBURLAP AND CUT ALL STRINGS.NOTES:1.ARRANGE BOULDERS IN NATURAL LOOKING WALLALIGNMENT. TOP COURSE CAN VARY NO MORE THAN 6"2.(2) ROWS OF RETAINING BOULDERS MAXIMUM; SOMEAREAS MAY CONTAIN (1) BOULDER FOR RETAININGFINISH GRADE4" DEPTH, CRUSHER FINESCOMPACTED SUBGRADESET BOULDERS IN AN EXCAVATED DEPRESSION. BACKFILLWITH EXCAVATED SOIL TO FINISH GRADE OF ADJACENT AREA1" to 2"LANDSCAPE AREA, SEE LANDSCAPE PLANWRAP GEOTEXTILE FABRICBACK AND COVER, HOLD TOP OFFABRIC 1" BELOW FINISH GRADELANDSCAPEBOULDERSEE CIVIL GRADING PLANS
4"
MIN.24"2"- 4"WEIR CRESTSEE CIVIL GRADING PLANSWEIR TOPFINISH GRADESEE CIVIL
GRADING
PLANS
Sheet Number:Project Number:Project:
Client:
C:\USERS\MOLLIESIMPSON\ONEDRIVE - BHADESIGN\PROJECTS\POWERHOUSE 2\DRAWINGS\ACAD\FDP\DWG\2057_LANDSCAPE PLAN.DWGPlot Date:4/19/2023 9:33 AM Plotted By: Mollie BredehoftDate Created:4/19/2023
Produced by:Date:Revision:L2Date:111 S. Meldrum St, Suite 110Fort Collins, CO 80521(970) 223-7577www.bhadesign.comLandscape ArchitectureUrban DesignPlanningLANDSCAPE SCHEDULES AND DETAILS
POWERHOUSE 2
CLIMATE SOLUTIONS CAMPUS
FINAL DESIGN REVIEW04/19/20232057SCALE:NTS2TREE PLANTING DETAIL SCALE:NTS3SHRUB PLANTING DETAIL SCALE:NTS1EVERGREEN TREE PLANTING DETAIL PLANT SCHEDULESPECIESQUANTITY% *% **KEYSCIENTIFIC NAMECOMMON NAMEUNITSPACINGSIZEHT. x WD.EXPOSURESHADE TREES557 TOTAL54%4.75%AC NEAcer negundo 'sensation'Sensation Boxelder MapleBBSEE PLAN2" Cal.30 x 25SUN98.5%AC SAAcer saccharum 'Bailsta''Fall Fiesta' Sugar MapleBBSEE PLAN2" Cal.60 x 40SUN55%CA SPCatalpa speciosaWestern CatalpaBBSEE PLAN2" Cal.50 x 30SUN76.5%CO COCorylus colurnaTurkish filbertBBSEE PLAN2" Cal.45 x 3054.75%PL ACPlatanus x acerifolia'Exclamation!' London PlanetreeBBSEE PLAN2" Cal.80 x 65SUN76.5%PO ANPopulous angustifoliaNarrowleaf CottonwoodBBSEE PLAN2" Cal.50 x 30SUN1110%PO DEPopulous deltoidesPlains CottonwoodBBSEE PLAN2" Cal.80 x 60SUN33%QU GAQuercus gambeliiScrub OakBBSEE PLAN2" Cal.20 x 12SUN/FILTERED SHADE54.75%QU SHQuercus shumardiiShumard OakBBSEE PLAN2" Cal.60 x 40ORNAMENTAL TREES447 TOTAL44%3.75%AC GIAcer ginnalaGinnala MapleBBSEE PLAN10' Clump20 x 20SUN21.75%AM ABAmelanchier x grandiflora 'Autumn Brilliance'Autumn Brilliance ServiceberryBBSEE PLAN10' Clump20 x 20SUN/FILTERED SHADE21.75%AM ABAmelanchier x grandiflora 'Autumn Brilliance'Autumn Brilliance ServiceberryBBSEE PLAN2" Cal.20 x 20SUN/FILTERED SHADE54.75%BE OCBetula occidentalisWater BirchBBSEE PLAN10' Clump50 x 40SUN/FILTERED SHADE54.75%CE CACercis canadensisEastern RedbudBBSEE PLAN1.5" Cal.20 x 20SUN/FILTERED SHADE1312%CR AMCrataegus ambiguaRussian hawthornBBSEE PLAN1.5" Cal.20 x 16SUN/FILTERED SHADE98.5%FA SYFagus sylvatica ' Fastigiata'European BeechBBSEE PLAN1.5" Cal.35 x 1243.75%PR AMPrunus americanaAmerican PlumBBSEE PLAN1.5" Cal.20 x 12SUN33%SY RESyringa reticulataJapanese Tree LilacBBSEE PLAN1.5" Cal.25 x 20SUN/FILTERED SHADEEVERGREEN TREES22%2%PI POPinus ponderosaPonderosa PineBBSEE PLAN6'80 x 40DECIDUOUS SHRUBS8AM ALAmelanchier alnifoliaSaskatoon ServiceberryCONSEE PLAN#520' x 12'SUN/FILTERED SHADE41AM LEAmorpha canescensLeadplantCONSEE PLAN#54' x 4'SUN34AR CAArtemesia canaSilver SageCONSEE PLAN#56' x 3'SUN26AT CAAtriplex canescensFour-wing SaltbrushCONSEE PLAN#56' x 4'SUN9CH NAChrysothamnus nauseosusRubber RabbitbrushCONSEE PLAN#56' x 6'SUN56PH MOPhysocarpus monogynusNative NinebarkCONSEE PLAN#54' x 4'SUN16PO YGPotentilla fruticosa 'Yellow Gem'Yellow Gem PotentillaCONSEE PLAN#53' x 3'SUN40PR PBPrunus besseyi 'Pawnee Buttes'Creeping Western Sand CherryCONSEE PLAN#530" x 6'SUN17RH TRRhus trilobataThree-leaf SumacCONSEE PLAN#56' x 6'SUN8RI AURibes auremGolden CurrantCONSEE PLAN#56' x 6'SUN/FILTERED SHADE21MA REMahonia repensCreeping MahoniaCONSEE PLAN#518" x 2'9RO WORosa woodsiiWood's RoseCONSEE PLAN#56' x 6'SUN4SH ARShepherdia argenteaSilver BuffaloberryCONSEE PLAN#515' x 12'SUN18SY OCSymphorcarpos occidentalisWestern Snowberry clusterCONSEE PLAN#55' x 5'SUN/FILTERED SHADE35VI OPViburnam opulus 'Nanum'Dwarf European CranberrybushCONSEE PLAN#52' x 2'SUNEVERGREEN SHRUBS9JU BCJuniperus horiziontalis 'Blue Chip'Blue Chip JuniperCONSEE PLAN#512" x 8'SUN8PI GLPicea pungens 'Glauca Globosa'Dwarf Globe Blue SpruceCONSEE PLAN#510' x 10'SUN/FILTERED SHADEORNAMENTAL GRASSES70BO BABouteloua gracilis 'Blonde Ambition'Blonde Ambition Grama GrassCONSEE PLAN#13' x 2'SUN7IM CYImperata cylindrica 'Red Baron'Red Baron Japanese Blood GrassCONSEE PLAN#118" x 18"ADAPTABLE59PH ARPhalaris arundinacea 'Picta'Ribbon GrassCONSEE PLAN#13" x 2"ADAPTABLE22SO NUSorghastrum nutansIndian GrassCONSEE PLAN#15' x 4'SUNPERENNIALS12AP CAApocynum cannabinumHemp DogbaneCONSEE PLAN#13' X 2'46DI DEDianthus DeltoidesMaiden PinksCONSEE PLAN#18" X 12"SUN59GA ARGailardia aristataBlanket FlowerCONSEE PLAN#12' x 2'SUN23LU GALupinus 'Gallery Mix'Dwarf Mix LupineCONSEE PLAN#120" X 15"SUN55LI PULiatris punctataNative GayfeatherCONSEE PLAN#118" x 12"SUN13PA VIParthenocissuus vitaceaWoodbineCONSEE PLAN#1VINE32PE GRPenstemon grandiflorusPenstemonCONSEE PLAN#13' X 12"SUNSOD AND SEED MIXESSCIENTIFIC NAMECOMMON NAMElbs/PLS.AcreApocynum cannabinumHemp Dogbane0.30Asclepias speciosaShowy Milkweed1.00Aster laevisSmooth aster0.19Dalea candidaWhite prairie clover0.65Dalea purpureaPurple prairie clover0.81Gaillardia aristataIndian blanketflower1.85Rudbeckia hirtaBlack-eyed Susan0.14Andropogon gerardiiBig bluestem1.3Deschampsia caespitosaSalt and pepper grass0.07Distichlis strictaInland saltgrass0.35Elymus lanceolatus ssp.lanceolatusStreambank wheatgrass1.36Panicum virgatumSwitchgrass0.71Pascopyrum smithiiWestern wheatgrass1.61Poa palustrisFowl bluegrass0.18Schizachyrium scopariumLittle bluestem0.7Sorghastrum nutansYellow Indiangrass1.38Spartina pectinataPrairie cordgrass1Total for Upper Riparian Seed Mix12.60*Contractor is responsible for locating and purchasing species listed in mix. If aspecies can’t be located, contractor must replace each missing species with theacceptable substitutions (listed above). Contractor is responsible for providing seedtags to appropriate Owner. This mix is based on 70 seeds/ square foot and is onlycalculated for one acre. This mix is based on the contractor using a drill seedapplication. Mix should be doubled if hand broadcasted. Contractor is responsiblefor calculating the appropriate seed amounts to purchase. Please note that thepounds per acre are in PLS (Pure Live Seed) and must be ordered that way.Materials furnished shall be free of Colorado State noxious weeds as defined inArticle III, Section 21-40 of the Code of the City of Fort Collins.UPPER RIPARIAN SEEDACCEPTABLE SUBSTITUTIONS FOR WILDFLOWERSMexican hat (Ratibida columnifera) 0.10 lbs/PLS/AcreMarsh sunflower (Helianthus nuttallii) 0.56 lbs/PLS/AcreBeebalm (Monarda fistulosa var. menthifolia) 0.09 lbs/PLS/AcreACCEPTABLE SUBSTITUTIONS FOR GRASSESAmerican sloughgrass (Beckmannia syzigachne) 0.20 lbs/PLS/AcreAlkali sacaton (Sporobolus airoides) 0.11 lbs/PLS/AcrePrairie sandreed (Calamovilfa longifolia) 0.67 lbs/PLS/AcreREQUIREMENTS SUBSTITUTES GRASSES WILDFLOWERS* Contractor is responsible for locating and purchasing all species listed in mix.Contractor is responsible for providing seed tags to appropriate City staff. This mixincludes Pure Live Seed (PLS); contractor must order it that way.Mix represents one acre at 90 seeds/ft2. Contractor is responsible for calculating theappropriate seed amounts to purchase. Contractor should use the hand broadcastmethod for this mix.All materials furnished shall be free of Colorado State noxious weeds as defined inArticle III, Section 21-40 of the Code of the City of Fort Collins.SCIENTIFIC NAMECOMMON NAMElbs/PLS.AcreGaillardia aristataIndian blanketflower5.94Ratibida columniferaMexican Hat0.65Bouteloua curtipendulaSide Oats Grama3.69Bouteloua gracilisBlue Grama0.81Panicum virgatumSwitchgrass2.27Pascopyrum smithiiWestern Wheatgrass5.17Sod and Seed Mix Total18.54UPLAND SEED1.THE TIME OF YEAR SEEDING IS TO OCCUR SHOULD BE OCTOBER THROUGH EARLY MAY.2.PREPARE SOIL AS NECESSARY AND APPROPRIATE FOR NATIVE SEED MIX SPECIES THROUGH LOOSENING AND ADDITION OF AMENDMENTS THATPROMOTE WATER ABSORPTION AND RELEASE, THEN SEED IN TWO DIRECTIONS TO DISTRIBUTE SEED EVENLY OVER ENTIRE AREA. DRILL SEED ALLINDICATED AREAS AS SOON AS POSSIBLE AFTER COMPLETION OF GRADING OPERATIONS.3.IF CHANGES ARE TO BE MADE TO SEED MIX BASED ON SITE CONDITIONS THEN APPROVAL MUST BE PROVIDED BY CITY ENVIRONMENTAL PLANNER.4.APPROPRIATE NATIVE SEEDING EQUIPMENT WILL BE USED (STANDARD TURF SEEDING EQUIPMENT OR AGRICULTURE EQUIPMENT SHALL NOT BE USED).5.DRILL SEED APPLICATION RECOMMENDED PER SPECIFIED APPLICATION RATE TO NO MORE THAN ½ INCH DEPTH. FOR BROADCAST SEEDING INSTEADOF DRILL SEEDING METHOD DOUBLE SPECIFIED APPLICATION RATE. REFER TO NATIVE SEED MIX TABLE FOR SPECIES, PERCENTAGES ANDAPPLICATION RATES.6.PREPARE A WEED MANAGEMENT PLAN TO ENSURE THAT WEEDS ARE PROPERLY MANAGED BEFORE, DURING AND AFTER SEEDING ACTIVITIES.7.AFTER SEEDING THE AREA SHALL BE COVERED WITH CRIMPED STRAW, JUTE MESH, OR OTHER APPROPRIATE METHODS. PLASTIC_BASED EROSIONCONTROL MATERIALS (I.E., PLASTIC_WELDED BLANKETS) SHALL NOT BE USED WITHOUT EXPRESS PERMISSION FROM THE ENVIRONMENTAL PLANNERAS THESE MATERIALS HAVE PROVEN TO CAUSE WILDLIFE ENTRAPMENT ISSUES.8.WHERE NEEDED, TEMPORARY IRRIGATION SHOULD BE PROVIDED UNTIL SEED IS GERMINATED THEN WEEN THE SEED FROM IRRIGATION. IF IRRIGATIONIS USED, THE IRRIGATION SYSTEM FOR SEEDED AREAS SHALL BE FULLY OPERATIONAL AT THE TIME OF SEEDING AND SHALL ENSURE 100%HEAD_TO_HEAD COVERAGE OVER ALL SEEDED AREAS. ALL METHODS AND REQUIREMENTS IN THE APPROVED IRRIGATION PLAN SHALL BE FOLLOWED.9.CONTRACTOR SHALL MONITOR SEEDED AREA FOR PROPER IRRIGATION, EROSION CONTROL, GERMINATION AND RESEEDING AS NEEDED TO ESTABLISHCOVER.THE APPROVED NATIVE SEED MIX AREA IS INTENDED TO BE MAINTAINED IN A NATURAL LIKE LANDSCAPE AESTHETIC. DO NOT MOW DURINGHOT, DRY PERIODS. DO NOT MOW LOWER THAN 6 TO 8 INCHES IN HEIGHT TO AVOID INHIBITING NATIVE PLANT GROWTH.10.NATIVE SEED AREA WILL BE CONSIDERED ESTABLISHED WHEN SEVENTY PERCENT VEGETATIVE COVER IS REACHED WITH LESS THAN TEN PERCENT OFCOVER CONSISTING OF NOXIOUS WEEDS, NO BARE SPOTS LARGER THAN ONE FOOT SQUARE, AND/OR UNTIL DEEMED ESTABLISHED BY CITY PLANNINGSERVICES AND EROSION CONTROL.11.THE DEVELOPER AND/OR LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR ADEQUATE SEEDLING COVERAGE AND GROWTH AT THE TIME OF FINALSTABILIZATION, AS DEFINED BY STATE AND LOCAL AGENCIES. IF FINAL STABILIZATION IS NOT ACHIEVED TO THE SATISFACTION OF THE AGENCY, THEDEVELOPER AND/OR LANDSCAPE CONTRACTOR SHALL BE RESPONSIBLE FOR ADDITIONAL CORRECTIVE MEASURES TO SATISFY FINAL VEGETATIVEREQUIREMENTS FOR CLOSEOUT.NATIVE SEED MIX NOTESBLUEGRASS SODFIVE WAY BLUEGRASS BLEND CONSISTING OF THE FOLLOWING:20%ARCADIA (DROUGHT TOLERANCE)20% SR2284 (SHADE TOLERANCE)20%SR2100 (AGGRESSIVE)20%FIELDER (DENSITY)20%PROSPERITY (COLOR AND DENSITY)NOTE: THIS SOD MIX MATCHES THE SOD USED IN THE WHITEWATER PARKTREE LAWN** NOTE: PER LAND USE CODE 3.2.1 (D)(3), WITH MORE THAN 60 TREES ONSITE, THE MAXIMUM PERCENTAGE OF ANY ONE SPECIES SHALL BE 15%TOTAL TREE MITIGATION QUANTITY: 21ANNOTATED "M" ON LANDSCAPE PLAN DESIGNATED MITIGATION TREES* NOTE: PER LAND USE CODE 3.2.1 (D)(1)(c), CANOPY SHADE TREES SHALLCONSTITUTE AT LEAST 50% OF TREE PLANTINGSSCALE:NTS4BOULDER WEIR
Sheet Number:Project Number:Project:
Client:
C:\USERS\MOLLIESIMPSON\ONEDRIVE - BHADESIGN\PROJECTS\POWERHOUSE 2\DRAWINGS\ACAD\FDP\DWG\2057_LANDSCAPE PLAN.DWGPlot Date:4/19/2023 9:33 AM Plotted By: Mollie BredehoftDate Created:4/19/2023
Produced by:Date:Revision:L3Date:111 S. Meldrum St, Suite 110Fort Collins, CO 80521(970) 223-7577www.bhadesign.comLandscape ArchitectureUrban DesignPlanningLANDSCAPE NOTES
POWERHOUSE 2
CLIMATE SOLUTIONS CAMPUS
FINAL DESIGN REVIEW04/19/202320571.A PERMIT MUST BE OBTAINED FROM THE CITY FORESTER BEFORE ANY TREES ORSHRUBS AS NOTED ON THIS PLAN ARE PLANTED, PRUNED OR REMOVED IN THE PUBLICRIGHT-OF-WAY. THIS INCLUDES ZONES BETWEEN THE SIDEWALK AND CURB, MEDIANSAND OTHER CITY PROPERTY. THIS PERMIT SHALL APPROVE THE LOCATION AND SPECIESTO BE PLANTED. FAILURE TO OBTAIN THIS PERMIT IS A VIOLATION OF THE CITY OF FORTCOLLINS CODE SUBJECT TO CITATION (SECTION 27-31) AND MAY ALSO RESULT INREPLACING OR RELOCATING TREES AND A HOLD ON CERTIFICATE OF OCCUPANCY.2.CONTACT THE CITY FORESTER TO INSPECT ALL STREET TREE PLANTINGS AT THECOMPLETION OF EACH PHASE OF THE DEVELOPMENT. ALL MUST BE INSTALLED ASSHOWN ON THE LANDSCAPE PLAN. APPROVAL OF STREET TREE PLANTING IS REQUIREDBEFORE FINAL APPROVAL OF EACH PHASE.3.STREET LANDSCAPING, INCLUDING STREET TREES, SHALL BE SELECTED INACCORDANCE WITH ALL CITY CODES AND POLICIES. ALL TREE PRUNING AND REMOVALWORKS SHALL BE PERFORMED BY A CITY OF FORT COLLINS LICENSED ARBORS WHEREREQUIRED BY CODE.STREET TREES SHALL BE SUPPLIED AND PLANTED BY THEDEVELOPER USING A QUALIFIED LANDSCAPE CONTRACTOR.4.THE DEVELOPER SHALL REPLACE DEAD OR DYING STREET TREES AFTER PLANTINGUNTIL FINAL MAINTENANCE INSPECTION AND ACCEPTANCE BY THE CITY OF FORTCOLLINS FORESTRY DIVISION. ALL STREET TREES IN THE PROJECT MUST BEESTABLISHED, WITH AN APPROVED SPECIES AND OF ACCEPTABLE CONDITION PRIOR TOACCEPTANCE.5.SUBJECT TO APPROVAL BY THE CITY FORESTER -- STREET TREE LOCATIONS MAY BEADJUSTED TO ACCOMMODATE DRIVEWAY LOCATIONS, UTILITY SEPARATIONS BETWEENTREES, STREET SIGNS AND STREET LIGHTS. STREET TREES TO BE CENTERED IN THEMIDDLE OF THE LOT TO THE EXTENT FEASIBLE. QUANTITIES SHOWN ON PLAN MUST BEINSTALLED UNLESS A REDUCTION IS APPROVED BY THE CITY TO MEET SEPARATIONSTANDARDS.STREET TREE NOTES:1.ALL EXISTING TREES WITHIN THE LIMITS OF THE DEVELOPMENT AND WITHIN ANYNATURAL AREA BUFFER ZONES SHALL REMAIN AND BE PROTECTED UNLESS NOTED ONTHESE PLANS FOR REMOVAL.2.WITHIN THE DRIP LINE OF ANY PROTECTED EXISTING TREE, THERE SHALL BE NO CUT ORFILL OVER A FOUR-INCH DEPTH UNLESS A QUALIFIED ARBORIST OR FORESTER HASEVALUATED AND APPROVED THE DISTURBANCE.3.ALL PROTECTED EXISTING TREES SHALL BE PRUNED TO THE CITY OF FORT COLLINSFORESTRY STANDARDS. TREE PRUNING AND REMOVAL SHALL BE PERFORMED BY ABUSINESS THAT HOLDS A CURRENT CITY OF FORT COLLINS ARBORIST LICENSE WHEREREQUIRED BY CODE.4.PRIOR TO AND DURING CONSTRUCTION, BARRIERS SHALL BE ERECTED AROUND ALLPROTECTED EXISTING TREES WITH SUCH BARRIERS TO BE OF ORANGE FENCING AMINIMUM OF FOUR (4) FEET IN HEIGHT, SECURED WITH METAL T-POSTS, NO CLOSERTHAN SIX (6) FEET FROM THE TRUNK OR ONE-HALF (½) OF THE DRIP LINE, WHICHEVER ISGREATER. THERE SHALL BE NO STORAGE OR MOVEMENT OF EQUIPMENT, MATERIAL,DEBRIS OR FILL WITHIN THE FENCED TREE PROTECTION ZONE.5.DURING THE CONSTRUCTION STAGE OF DEVELOPMENT, THE APPLICANT SHALL PREVENTTHE CLEANING OF EQUIPMENT OR MATERIAL OR THE STORAGE AND DISPOSAL OF WASTEMATERIAL SUCH AS PAINTS, OILS, SOLVENTS, ASPHALT, CONCRETE, MOTOR OIL OR ANYOTHER MATERIAL HARMFUL TO THE LIFE OF A TREE WITHIN THE DRIP LINE OF ANYPROTECTED TREE OR GROUP OF TREES.6.NO DAMAGING ATTACHMENT, WIRES, SIGNS OR PERMITS MAY BE FASTENED TO ANYPROTECTED TREE.7.LARGE PROPERTY AREAS CONTAINING PROTECTED TREES AND SEPARATED FROMCONSTRUCTION OR LAND CLEARING AREAS, ROAD RIGHTS-OF-WAY AND UTILITYEASEMENTS MAY BE "RIBBONED OFF," RATHER THAN ERECTING PROTECTIVE FENCINGAROUND EACH TREE AS REQUIRED IN SUBSECTION (G)(3) ABOVE. THIS MAY BEACCOMPLISHED BY PLACING METAL T-POST STAKES A MAXIMUM OF FIFTY (50) FEETAPART AND TYING RIBBON OR ROPE FROM STAKE-TO-STAKE ALONG THE OUTSIDEPERIMETERS OF SUCH AREAS BEING CLEARED.8.THE INSTALLATION OF UTILITIES, IRRIGATION LINES OR ANY UNDERGROUND FIXTUREREQUIRING EXCAVATION DEEPER THAN SIX (6) INCHES SHALL BE ACCOMPLISHED BYBORING UNDER THE ROOT SYSTEM OF PROTECTED EXISTING TREES AT A MINIMUMDEPTH OF TWENTY-FOUR (24) INCHES. THE AUGER DISTANCE IS ESTABLISHED FROM THEFACE OF THE TREE (OUTER BARK) AND IS SCALED FROM TREE DIAMETER AT BREASTHEIGHT AS DESCRIBED IN THE CHART BELOW:9.ALL TREE REMOVAL SHOWN SHALL BE COMPLETED OUTSIDE OF THE SONGBIRD NESTINGSEASON (FEB 1 - JULY 31) OR CONDUCT A SURVEY OF TREES ENSURING NO ACTIVENESTS IN THE AREA.TREE PROTRECTION NOTESTREE DIAMETER AT BREASTHEIGHT (INCHES)AUGER DISTANCE FROMFACE OF FREE (FEET)0-213-425-9510-141015-1912OVER 19151.PLANT QUALITY: ALL PLANT MATERIAL SHALL BE A-GRADE OR NO. 1 GRADE - FREE OF ANYDEFECTS, OF NORMAL HEALTH, HEIGHT, LEAF DENSITY AND SPREAD APPROPRIATE TO THESPECIES AS DEFINED BY THE AMERICAN ASSOCIATION OF NURSERYMEN (AAN) STANDARDS.ALL TREES SHALL BE BALL AND BURLAP OR EQUIVALENT.2.IRRIGATION: ALL LANDSCAPE AREAS WITHIN THE SITE INCLUDING TURF, SHRUB BEDS ANDTREE AREAS SHALL BE IRRIGATED WITH AN AUTOMATIC IRRIGATION SYSTEM. THE IRRIGATIONPLAN MUST BE REVIEWED AND APPROVED BY THE CITY OF FORT COLLINS WATER UTILITIESDEPARTMENT PRIOR TO THE ISSUANCE OF A BUILDING PERMIT. ALL TURF AREAS SHALL BEIRRIGATED WITH AN AUTOMATIC POP-UP IRRIGATION SYSTEM. ALL SHRUB BEDS AND TREES,INCLUDING IN NATIVE SEED AREAS, SHALL BE IRRIGATED WITH AN AUTOMATIC DRIP (TRICKLE)IRRIGATION SYSTEM, OR WITH AN ACCEPTABLE ALTERNATIVE APPROVED BY THE CITY WITHTHE IRRIGATION PLANS. THE IRRIGATION SYSTEM SHALL BE ADJUSTED TO MEET THE WATERREQUIREMENTS OF THE INDIVIDUAL PLANT MATERIAL.3.TOPSOIL: TO THE MAXIMUM EXTENT FEASIBLE, TOPSOIL THAT IS REMOVED DURINGCONSTRUCTION ACTIVITY SHALL BE CONSERVED FOR LATER USE ON AREAS REQUIRINGREVEGETATION AND LANDSCAPING.4.SOIL AMENDMENTS: SOIL AMENDMENTS SHALL BE PROVIDED AND DOCUMENTED INACCORDANCE WITH CITY CODE SECTION 12-132. THE SOIL IN ALL LANDSCAPE AREAS,INCLUDING PARKWAYS AND MEDIANS, SHALL BE THOUGHLY LOOSENED TO A DEPTH OF NOTLESS THAN EIGHT(8) INCHES AND SOIL AMENDMENT SHALL BE THOROUGHLY INCORPORATEDINTO THE SOIL OF ALL LANDSCAPE AREAS TO A DEPTH OF AT LEAST SIX(6) INCHES BY TILLING,DISCING OR OTHER SUITABLE METHOD, AT A RATE OF AT LEAST THREE (3) CUBIC YARDS OFSOIL AMENDMENT PER ONE THOUSAND (1,000) SQUARE FEET OF LANDSCAPE AREA. PRIOR TOTHE ISSUANCE OF ANY CERTIFICATE OF OCCUPANCY, A WRITTEN CERTIFICATION MUST BESUBMITTED TO THE CITY THAT ALL PLANTED AREAS, OR AREAS TO BE PLANTED, HAVE BEENTHOROUGHLY LOOSENED AND THE SOIL AMENDED, CONSISTENT WITH THE REQUIREMENTSSET FORTH IN SECTION 12-132.5.INSTALLATION AND GUARANTEE: ALL LANDSCAPING SHALL BE INSTALLED ACCORDING TOSOUND HORTICULTURAL PRACTICES IN A MANNER DESIGNED TO ENCOURAGE QUICKESTABLISHMENT AND HEALTHY GROWTH. ALL LANDSCAPING FOR EACH PHASE MUST BEEITHER INSTALLED OR THE INSTALLATION MUST BE SECURED WITH AN IRREVOCABLE LETTEROF CREDIT, PERFORMANCE BOND, OR ESCROW ACCOUNT FOR 125% OF THE VALUATION OFTHE MATERIALS AND LABOR PRIOR TO ISSUANCE OF A CERTIFICATE OF OCCUPANCY FOR ANYBUILDING IN SUCH PHASE.6.MAINTENANCE: TREES AND VEGETATION, IRRIGATION SYSTEMS, FENCES, WALLS AND OTHERLANDSCAPE ELEMENTS WITH THESE FINAL PLANS SHALL BE CONSIDERED AS ELEMENTS OFTHE PROJECT IN THE SAME MANNER AS PARKING, BUILDING MATERIALS AND OTHER SITEDETAILS. THE APPLICANT, LANDOWNER OR SUCCESSORS IN INTEREST SHALL BE JOINTLY ANDSEVERALLY RESPONSIBLE FOR THE REGULAR MAINTENANCE OF ALL LANDSCAPING ELEMENTSIN GOOD CONDITION. ALL LANDSCAPING SHALL BE MAINTAINED FREE FROM DISEASE, PESTS,WEEDS AND LITTER, AND ALL LANDSCAPE STRUCTURES SUCH AS FENCES AND WALLS SHALLBE REPAIRED AND REPLACED PERIODICALLY TO MAINTAIN A STRUCTURALLY SOUNDCONDITION.7.ROW LANDSCAPE MAINTENANCE: PROPERTY OWNER WILL MAINTAIN IRRIGATION ANDLANDSCAPING LOCATED WITHIN THE PUBLIC ROW IN PERPETUITY. THIS INCLUDESSTREETSCAPE IMPROVEMENTS ABUTTING THIS PROPERTY ON THE EAST SIDE OF N. COLLEGEAVE, THE NORTH SIDE OF EAST VINE DRIVE, AND THE WEST SIDE OF JEROME STREET.STREET TREES SHALL BE MAINTAINED BY THE PROPERTY OWNER DURING A 2 YEARESTABLISHMENT PERIOD. FOLLOWING THE ESTABLISHMENT PERIOD, THE CITY WILL BERESPONSIBLE FOR MAINTAINING STREET TREES.8.TRAIL MAINTENANCE: THIS DEVELOPMENT CONTAINS A TRAIL SECTION THAT IS A PART OF THEREGIONAL TRAIL SYSTEM, THE CITY IS RESPONSIBLE FOR THE LONGTERM MAINTENANCE OFTHE COMMUNITY TRAIL WITHIN THE DEVELOPMENT. MAINTENANCE CONSISTS OFSNOWPLOWING OF THE PAVED SURFACE, OCCASIONAL SEASONAL MOWING 23’ ADJACENT TOTHE TRAIL SURFACE, REPAIRING/REPLACING SURFACE DAMAGE OF THE TRAIL. ALL OTHERLANDSCAPING MAINTENANCE WITHIN THE EASEMENT IS THE RESPONSIBILITY OF THEUNDERLYING PROPERTY OWNER LANDSCAPING SHALL BE DESIGNED IN ACCORDANCE WITHALL APPLICABLE CITY CODES AND PLEASE COORDINATE WITH THE CITY’S PARKSDEPARTMENT. SPRAY IRRIGATION IF REQUIRED, SHALL BE DESIGNED AND MAINTAINED TOAVOID SPRAY ON THE TRAIL.9.REPLACEMENT: ANY LANDSCAPE ELEMENT THAT DIES, OR IS OTHERWISE REMOVED, SHALL BEPROMPTLY REPLACED IN ACCORDANCE WITH THE REQUIREMENTS OF THESE PLANS.10.THE FOLLOWING SEPARATIONS SHALL BE PROVIDED BETWEEN TREES/SHRUBS AND UTILITIES:40 FEET BETWEEN CANOPY TREES AND STREET LIGHTS15 FEET BETWEEN ORNAMENTAL TREES AND STREETLIGHTS10 FEET BETWEEN TREES AND PUBLIC WATER, SANITARY AND STORM SEWER MAIN LINES6 FEET BETWEEN TREES AND PUBLIC WATER, SANITARY AND STORM SEWER SERVICE LINES.4 FEET BETWEEN SHRUBS AND PUBLIC WATER AND SANITARY AND STORM SEWER LINES4 FEET BETWEEN TREES AND GAS LINES11.ALL STREET TREES SHALL BE PLACED A MINIMUM EIGHT (8) FEET AWAY FROM THE EDGES OFDRIVEWAYS AND ALLEYS PER LUC 3.2.1(D)(2)(a).12.PLACEMENT OF ALL LANDSCAPING SHALL BE IN ACCORDANCE WITH THE SIGHT DISTANCECRITERIA AS SPECIFIED BY THE CITY OF FORT COLLINS. NO STRUCTURES OR LANDSCAPEELEMENTS GREATER THAN 24" SHALL BE ALLOWED WITHIN THE SIGHT DISTANCE TRIANGLE OREASEMENTS WITH THE EXCEPTION OF DECIDUOUS TREES PROVIDED THAT THE LOWESTBRANCH IS AT LEAST 6' FROM GRADE. ANY FENCES WITHIN THE SIGHT DISTANCE TRIANGLE OREASEMENT MUST BE NOT MORE THAN 42" IN HEIGHT AND OF AN OPEN DESIGN.13.THE FINAL LANDSCAPE PLAN SHALL BE COORDINATED WITH ALL OTHER FINAL PLAN ELEMENTSSO THAT THE PROPOSED GRADING, STORM DRAINAGE, AND OTHER DEVELOPMENTIMPROVEMENTS DO NOT CONFLICT WITH NOR PRECLUDE INSTALLATION AND MAINTENANCE OFLANDSCAPE ELEMENTS ON THIS PLAN.14.MINOR CHANGES IN SPECIES AND PLANT LOCATIONS MAY BE MADE DURING CONSTRUCTION --AS REQUIRED BY SITE CONDITIONS OR PLANT AVAILABILITY. OVERALL QUANTITY, QUALITY,AND DESIGN CONCEPT MUST BE CONSISTENT WITH THE APPROVED PLANS. IN THE EVENT OFCONFLICT WITH THE QUANTITIES INCLUDED IN THE PLANT LIST, SPECIES AND QUANTITIESILLUSTRATED SHALL BE PROVIDED. ALL CHANGES OF PLANT SPECIES AND LOCATION MUSTHAVE WRITTEN APPROVAL BY THE CITY PRIOR TO INSTALLATION.15.ALL PLANTING BEDS SHALL BE MULCHED TO A MINIMUM DEPTH OF THREE INCHES.GENERAL LANDSCAPE NOTES:
EMGM TFTFGSIR FWUDUDUDUDUDUDUDUDUDUDUDSSSSSVAULTELECVAULTELECVAULTELECVAULTELECHYDELECTVAULTF.O.F.O.DCONTROLIRRCONTROLIRRGASELECBRKRT SDFESFESFESFESFESFESFESVAULTELECGASSIRRIGATION METER NEAR THISLOCATION. REFER TO IRRIGATIONPLANS. ALL IRRIGATED MATERIALON THIS SITE IS SERVED BY THISMETER.HIGH WATER USE (TURFGRASS)AREA: 0.26 ACRESUNIT WATER USE: 18 GALLONS/SF/SEASONWATER CONSUMPTION: 203,860 GALLONS/SEASONMEDIUM WATER USE (NATIVE SEED WITH SCATTERED SHRUBSAND TREES)AREA: 1.41 ACRESUNIT WATER USE: 14 GALLONS/SF/SEASONWATER CONSUMPTION: 862,624 GALLONS/SEASONMEDIUM WATER USE (PLANTING BEDS)AREA: 0.18 ACRESUNIT WATER USE: 14 GALLONS/SF/SEASONWATER CONSUMPTION: 109,088 GALLONS/SEASONTOTAL ANNUAL WATER CONSUMPTION: 1,175,572 GALLONSAVERAGE GALLONS PER SQUARE FOOT: 14.55 GALLONS/SQUAREFOOT (AVERAGE)NOTE: THE INTENT OF NATIVE SEED IRRIGATION IS TO IRRIGATETHE SEED TO ESTABLISHMENT, AND AFTER THE NATIVE SEED ISESTABLISHED, IRRIGATION TO SEEDED AREAS IS ONLY REQUIREDFOR SUPPLEMENTAL PURPOSES.HYDROZONE LEGEND - THIS SHEET ONLYSheet Number:Project Number:Project:
Client:
C:\USERS\MOLLIESIMPSON\ONEDRIVE - BHADESIGN\PROJECTS\POWERHOUSE 2\DRAWINGS\ACAD\FDP\DWG\2057_LANDSCAPE PLAN.DWGPlot Date:4/19/2023 9:33 AM Plotted By: Mollie BredehoftDate Created:4/19/2023
Produced by:Date:Revision:L4Date:111 S. Meldrum St, Suite 110Fort Collins, CO 80521(970) 223-7577www.bhadesign.comLandscape ArchitectureUrban DesignPlanningRESTORATION PLAN
POWERHOUSE 2
CLIMATE SOLUTIONS CAMPUS
FINAL DESIGN REVIEW04/19/20232057NHBZ GOALSIN ACCORDANCE WITH THE CITY OF FORT COLLINS GUIDELINES (LUC 3.4.1) THE NATURAL HABITATBUFFER ZONES SHOULD BE MANAGED TO:1.PRESERVE OR ENHANCE THE ECOLOGICAL CHARACTER OR FUNCTION AND WILDLIFE USE OF THENATURAL HABITAT OR FEATURE AND TO MINIMIZE OR ADEQUATELY MITIGATE THE FORESEEBABLEIMPACTS OF DEVELOPMENT.2.PRESERVE OR ENHANCE THE EXISTENCE OF WILDLIFE MOVEMENT CORRIDORS BETWEEN NATURALHABITATS AND FEATURES, BOTH WITHIN AND ADJACENT TO THE SITE.3.EHHANCE THE NATURAL ECOLOGICAL CHARACTERISTICS OF THE SITE. IF EXISTING LANDSCAPINGWITHIN THE NHBZ IS DETERMINED BY THE DECISION MAKER TO BE INCOMPATIBLE WITH THEPURPOSES OF THE BUFFER ZONE, THEN THE APPLICANT SHALL UNDERTAKE RESTORATION ANDMITIGATION MEASURES SUCH AS RE-GRADING AND/OR REPLANTING OF NATIVE VEGETATION.4.PROVIDE APPROPRIATE HUMAN ACCESS TO NATURAL HABITATS AND FEATURES AND THEIRASSOCIATED NHBZ'S IN ORDER TO SERVE RECREATION PURPOSES, PROVIDED THAT SUCH ACCESSIS COMPATIBLE WITH THE ECOLOGICAL CHARACTER OR WILDLIFE USE OF THE NATURAL HABITATOR FEATURE.STEPWISE APPROACHSTEP 1 - CREATE OPPORTUNITY AND REDUCING COMPETITION - NOXIOUS AND WEEDY SPECIES SHOULDBE CONTROLLED USING MECHANICAL OR CHEMICAL METHODS PRIOR TO PROJECT CONSTRUCTION ORGRADING TO ENSURE THAT A VARIETY OF NATIVE SPECIES ARE GIVEN THE OPPORTUNITY TO ESTABLISHSTEP 2 - SOIL PREPARATION - THE SOIL SURFACE SHOULD BE OPTIMIZED FOR SEEDING OR PLANTING.SPREAD TOPSOIL IN RESTORATION AREAS.AN AGRONOMIC ASSESSMENT IS RECOMMENDED TOEVAULATE THE CHEMICAL AND PHYSICAL PROPERTIES OF THE TOPSOIL AND DETERMINE IF SOILAMENDMENTS WOULD HELP ESTABLISH NATIVE VEGETATION. THE SOIL SURFACE SHOULD BE SMOOTH,UNCOMPACTED, AND FREE FROM LARGE MATER WHICH COULD IMPEDED PLANTING OR SEEDKING.PRIOR TO SEEDING THE SOIL SURFACE SHOULD BE LOOSE, ALLOWING FOR GOOD SOIL/SEED CONTACT.STEP 3 - SEEDING AND PLANTING - AFTER FINAL CONTOURING AND INCORPORATION OF SOILAMENDMENT/FERTILZIER, SEEDING SHOULD OCCUR AS SOON AS POSSIBLE TO AVOID UNDESIRABLEIMPACTS FROM WIND OR PRECIPITATION. SEEDING CAN BE ACCOMPLISHED USING BROADCASTINGAND DRILLING TECHNIQUES WHERE APPLICABLE.·BROADCAST SEEDING: THE SEEDING RATE SHOULD BE DOUBLED, SEED-TO SOIL CONTACT SHOULDBE INCREASED IMMEDIATELY THROUGH MANIPULATION WHICH WILL ALSO PROVIDE SOMEPROTECTION FROM WIND OR WATER EROSION AND GRANIVORES. MANIPULATION CAN BEACCOMPLISHED BY EITHER A LIGHT DISC HARROWING PERPENDICULAR TO THE FLOW OF ENERGY(WIND AND/OR WATER) OR HAND RAKING AROUND SENSITIVE AND SMALLER AREAS.·DRILL SEEDING: FINAL DRILLING PASS MUST OCCUR ON THE CONTOUR, TO CREATE SUBTLE RIDGESPERPENDICULAR TO THE FLOW OF ENERGY. DRILL SEEDING SHOULD NOT BE CONDUCTED INSENSITIVE AREAS.APPROPRIATE NATIVE SEEDING EQUIPMENT WLL BE USED, WHICH DOES NOT INCLUDE STANDARDTURF SEEDING EQUIPMENT OR AGRICULTURE EQUIPMENT. DRILL THE APPROVED SEED MIX INTWO PASSES, EACH AT RIGHT ANGLES TO THE OTHER AND USING HALF THE SEED IN EACH PASS.SEED SHOULD BE DRILLED AT THE SPECIFIED APPLICATION RATE. IF AREAS ARE TOO WET OR STEEPTO DRILL SEED, BROADCAST SEED AS DESCRIBED ABOVE.·RESTORE FINE GRADE AFTER SEEDING, AND COVER SEED TO DEPTH RECOMMENDED BY SEEDSUPPLIER BY RAKING OR DRAGGING.·HYDROMULCH SEEDED AREAS WITHIN 24 HOURS AFTER SEED IS SEWN.·IRRIGATION SEED AS NEEDED, PER SEED SUPPLIER'S RECOMMENDATIONS.·WITHIN THE FIRST YEAR, AND SUBSEQUENT YEARS, RE-SEEDING MAY BE NECESSARY TO ACHIEVEREQUIRED COVERAGE. IN AREAS THAT HAVE FAILED, RESEED USING THE SAME METHODS ANDSEED MIX TO ACHIEVE A HEALTHY STAND OF GRASS AND FORBS. RESEED IN A MANNER TOACHIEVE THE QUALITY ORIGINALLY SPECIFIED.STEP 4 - MAINTENANCE AND MANAGEMENT - MAINTENANCE AND MANAGEMENT ACTIVITIES SHOULDBE IMPLEMENTED TO ENSURE SUCCESS OF THE ECOLOGICAL RESTORATION PROJECT. THE CONTRACTORSHALL MONITOR SEEDED AREAS FOR EROSION CONTROL, GERMINATION, AND RESEEDING AS NEEEDEDTO ESTABLISH COVER.MOWING AFTER SEED ESTABLISHMENT: ARES WITH NATIVE SEED MIXES ARE INTENDED TO BEMAINTAINED IN A NATURAL LIKE LANDSCAPE AESTHETIC. IF AND WHEN MOWING OCCURS IN NATIVESEED AREAS DO NOT MOW LOWER THAN 5 TO 6 INCHES IN HEIGHT, TO AVOID INHIBITING NATIVEPLANT GROWTH. NATIVE SEED SHOULD BE MOWED AT MOST TWICE A YEAR, BUT TYPICALLY ONLY ONCEIN THE FALL.REVEGETATION SCHEDULESEXCAVATION AND GRADING MAY ORDINARILY OCCUR DURING ANY MONTH OF THE YEAR. HOWEVER,REVEGETATION ACTIVITIES ARE TYPICALLY MORE LIMITED WITH RESPECT TO THE TIME OF YEAR INWHICH THEY SHOULD BE COMPLETED AND MUST BE TIMED TO COINCIDE WITH A RECOGNIZEDPLANTING SEASON. THE FOLLOWING TABLE DEPICT SCHEDULES THAT CAN BE FOLLOWED TO ACHIEVETHE MITIGATION OBJECTIVES SET FOR THIS PROJECT.SITE CONDITIONS AND/OR CLIMATIC VARIATIONS MAY REQUIRE THAT THESE SCHEDULES BE MODIFIEDSOMEWHAT TO ACHIEVE REVEGETATION SUCCESS. THE SCHEDULES DO NOT REFLECT WEED CONTROLACTIVITIES THAT MAY BE EMPLOYED ON SITE AND WOULD BE AMENDED TO INCORPORATE SUCH APROGRAM, IF REQUIRED.RESTORATION PLAN AND NATIVE SEED MANAGEMENT PLANTABLE: FALL (DORMANT SEEDING) MITIGATION SCHEDULEMonthReclamation TechniqueJFMA MJJAS ONDExcavation/Grading(Any month)Resoiling and/or Ripping (if necessary)X X X X XSeedbed Material SamplingX X X X XFertilization X X X XSeedbed Preparation X X X XSeeding X X X X X X X X X X X X X X XMulching (as specified) X XWEED CONTROL PLAN SUMMARYTHIS SECTION SUMMARIZES THE ELEMENTS OF THE WEED CONTROL PLAN TO BE PREPARED FOR THEMITIGATION SITE DURING THE FIRST GROWING SEASON IF WEEDS ARE DEEMED TO BE DETRIMENTAL TOMITIGATION SUCCESS OR ARE REQUIRED TO BE ERADICATED AS PER REGULATIONS. THE COMPLETEDPLAN WILL BE SUBMITTED TO GOVERNMENTAL AGENCIES, INCLUDING THE CITY OF FORT COLLINSNATURAL AREAS PROGRAM AND LARIMER COUNTY, AS REQUIRED FOR REVIEW AND APPROVAL.THE WEED CONTROL PLAN SHALL BE PREPARED BY A LICENSED COMMERCIAL PESTICIDE APPLICATOR(LCPA). SUBSEQUENT WEED CONTROL ACTIVITIES WILL ALSO BE CONDUCTED BY AN LCPA. THE PLANTO BE PREPARED WILL TAKE THE FORM OF AN INTEGRATED PEST MANAGEMENT PLAN (IPM) THAT WILLCONSIDER ALL METHODS OF CONTROL THAT WOULD POTENTIALLY BE APPLICABLE TO THE PROJECTAREA. THESE METHODS INCLUDE MECHANICAL, CHEMICAL, CULTURAL, AND BIOLOGICAL TECHNIQUES. PRIOR TO PLAN PREPARATION, A VISIT TO THE PROJECT AREA SHALL BE CONDUCTED BY THE LCPA, TOASSESS SITE CONDITIONS, ROUTES OF ACCESS, WEEDY SPECIES PRESENT, THE RELATIONSHIP OFSURROUNDING WATER / WETLAND BODIES TO THE PROPOSED AREAS TO BE TREATED, POTENTIALSOURCES OF RUN-ON AND RUN-OFF, AND OTHER FACTORS RELEVANT TO THE WEED CONTROLPLANNING PROCESS. GIVEN THE PRESENCE OF WETLANDS NEAR THE PROJECT AREA, INITIAL EMPHASISWILL BE GIVEN TO WEED CONTROL METHODS OTHER THAN THOSE OF A CHEMICAL NATURE, THOUGHCHEMICAL CONTROLS DO EXIST THAT ARE CONSIDERED BY THE CORPS OF ENGINEERS TO BEAPPROPRIATE IN SUCH CASES. PLANT SPECIES TO BE CONSIDERED AS WEEDS AND CONTROLLED AND/OR ERADICATED AT THIS PROJECTSITE, AS PER CITY CODE, ARE THOSE LISTED BY THE LARIMER COUNTY WEED CONTROL DISTRICT ANDTHOSE LISTED AS NOXIOUS BY THE COLORADO WEED LAW.ANNUAL MONITORINGTHE NHBZ WILL BE INSPECTED TWICE A YEAR ON THE FOLLOWING SCHEDULE:1.IN THE SPRING, A QUALIFIED ECOLOGIST WILL TRAVERSE THE NHBZ'S TO ASSESS NOXIOUS WEEDPOPULATIONS.2.AT THE PEAK OF GROWING SEASON, A QUALIFIED BIOLOGIST WILL IMPLEMENT QUANTITATIVEMEASUREMENTS TO EVALUATE GROND COVER WITHIN THE NHBZ'S. QUANTITATIVE MEASUREMENTSWILL CONSIST OF TWO PERMANENT PHOTO POINTS AND FIVE GROUND COVER SAMPLING POINTS.AT EACH SAMPLE POINT, GROUND COVER WILL BE MEASURED USING LINE POINT ESTIMATES, WHERETHE ECOLOGIST WILL ESTIMATE AND RECORD VEGETATIVE GROUND COVER BY SPECIES TO THENEAREST ONE PERCENT. SPECIES, INCLUDING NOXIOUS WEEDS AND INVASIVE SPECIES, AND THEIRRESPECTIVE PERCENT GROUND COVER WILL BE RECORDED.3.BRIEF WEED MANAGEMENT ACTION ITEM REPORTS/MEMOS WILL BE NEEDED PRIOR TO SEPTEMBER30TH AND NEED TO BE DELIVERED TO THE PLANNER, DEVELOPER, AND CONTRACTORS TO ENSURETIMELY ACTION4.ANNUAL MONITORING WILL CONTINUE FOR A TOTAL OF THREE YEARS FOLLOWING RESTORATION OFTHE NHBZ'S. A BRIEF MEMO CONTAINING FINDINGS AND RECOMMENDATIONS WILL BE PROVIDEDTO THE CITY OF FORT COLLINS BY SEPTEMEBER 30TH OF EACH YEAR.5.DURING THE THIRD YEAR OF ANNUAL MONITORING, A DERMINATION OF SUCCESSFULESTABLISHMENT IN THE NHBZ'S WILL BE MADE BY CITY ENVIRONMENTAL PLANNING DEPARTMENTBASED ON A SITE INSPECTION AND VEGETATION PERFORMANCE COMPARED TO THE FOLLOWINGSUCCESS CRITERIA:·≥ 80% SURVIVAL OF WOODY PLANTS (TREES AND SHRUBS)·70% TOTAL VEGETATIVE COVER (EXCLUDING NOXIOUS WEEDS) IS REACHED WITH NO BARE SPOTSLARGER THAN ONE SQUARE FOOT.·NOXIOUS WEEDS DO NOT EXCEED 10% OF TOTAL COVER.·DEEMED ACCEPTABLE BY CITY ENVIRONMENTALSCALE:1:501HYDROZONE MAPHYDROZONE LEGENDNORTH
APPENDIX D
COPIES OF PERMITS/APPLICATIONS
APPENDIX E
INSPECTION LOGS
STORM WATER MANAGEMENT PLAN
INSPECTION TABLE
BMP Name/ Desc.Date Erosion Control Measures Effective Brief Revision Description
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
1
STORM WATER MANAGEMENT PLAN
INSPECTION TABLE
BMP Name/ Desc.Date Erosion Control Measures Effective Brief Revision Description
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
2
STORM WATER MANAGEMENT PLAN
INSPECTION TABLE
BMP Name/ Desc.Date Erosion Control Measures Effective Brief Revision Description
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
___ Yes ____ No ____ Yes (w/Rev)
3
APPENDIX F
CONTRACTOR INSERTS
APPENDIX G
CONTRACTOR INSERTS