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Home My WebLink AboutNEW BELGIUM BREWERY - MAJOR AMENDMENT - 1-95A - SUBMITTAL DOCUMENTS - ROUND 1 - DRAINAGE REPORTNo Text DRAINAGE DESIGN Concept Drainage from Basins A through E will drain to Design Points A and B as shown on Figure 2. Drainage from Basins A and B will be detained in Ponds A and B. Ponds A and B will pond and detain the runoff difference between the 2 and 100-year storm events. Releases from Basis A,B,C and E will flow to Design Point C, a 6', sump curb inlet at the sag vertical curve created by the street expansion along the north side of Buckingham Street. From the curb inlet the drainage will flow in a 15" reinforced concrete pipe (RCP) pipe in the north Buckingham Right -Of -Way (ROW) to the manhole at Design Point D. Flows from Basin D when developed, will be collected at Point D. From the manhole, flows will turn south and drain to the existing street ROW west of 1st Street. Flow from the manhole will be conveyed in a 15" RCP to a point approximately 70' south of the manhole where it will daylight to a roadside depression and flow in an easement through the historic river meander to the Poudre River. Lot 1, Basin A: Basin A, consisting of the building truck dock and future facilities, will drain to Pond A located along the south and east margins of the building. Pond A will be formed by a low berm along its margins and a rise in the truck dock entrance from Buckingham. The primary spillway from Pond A will consist of a 6" PVC pipe with the inlet located north of the Coy Ditch and west of the truck dock facility entrance at Point A. The pipe will traverse the west side of the truck dock entrance over the elliptical pipe conveying the Coy Ditch flows and drain into the back of the 6' curb inlet at Design Point C. The emergency spillway for Pond A will be formed by the entrance ramp and allow excess flow to drain to Buckingham Street. Drainage from the northeast portion of Basin A will be conveyed to the primary spillway via overland flows to a concrete pan in the truck ramp, then through a 8" PVC pipe under a forklift ramp extending from the south corner of the building and to the spillway in a 2' concrete pan. Drainage from the building and areas southwest of the building will drain to the primary spillway via overland and pan flows as shown on Figure 2. Lot 1 , Basin B: Basin B, consisting of the south and west parking and plaza areas, will drain to Pond B located in the turnaround at the end of the parking area. Pond B will be formed by a berm and the turnaround curbing adjacent to the Coy Ditch. The primary spillway from Pond B will consist of a 4" PVC pipe with the inlet at the low point in the gutter of the turnaround and drain to a sidewalk culvert under the sidewalk to the proposed north flowline of Buckingham Street. The emergency spillway for Pond B will be formed by a low area in the berm with excess flows draining down the face of the vegetated berm to the north flow line of Buckingham. Drainage will be conveyed to Point B by overland flow to the parking area and then in the southwest gutter to the primary spillway at the east end of the turnaround. Basin E and part of the Streets Facilities: Drainage from Basin E and portions of the Streets Facilities, when developed, will detain the difference between the 2 and 100-year storm events. The released water will be conveyed over Basin A to Point A. DRAINAGE AND EROSION CONTROL REPORT FOR NEW BELGIUM BREWERY FORT COLLINS, COLORADO Prepared for: THE NEENAN COMPANY 2290 East Prospect Fort Collins, CO 80525 Prepared by: Water, Waste & Land, Inc. 2629 Redwing Road, Suite 200 Fort Collins, Colorado 80526 March 30, 1995 [I 1 APPENDIX B PERTINENT INFORMATION FROM "DRAINAGE AND EROSION CONTROL REPORT ' FOR NEW BELGIAN BREWERY, FORT COLLINS, COLORADO" PREPARED BY WATER, WASTE & LAND, INC. IMARCH 30,1995 L JR Engineering, Ltd. (970) 491-9888 2620 East Prospect Road, Suite 190, Fort Collins, Colorado 80525 05/27/97 NEW BELGIAN BREWERY FERMENTATION TANKS EROSION CONTROL COST ESTIMATE JOB NO. 9067.02 COMPLETED BY: DWK ITEM DESCRIPTION I UNITS I UNIT COST UANTITY TOTAL COST 1 SILT FENCE LF $2.50 1 285 $712.50 2 STRAW BALE BARRIER LF $5.00 1 10 1 $50.00 PRELIMINARY COST $762 50 TOTAL COST WITH FACTOR OF 150% $1,143 75 CITY RF.SF.FDTNC; C.OgT ITEM DESCRIPTION UNITS UNIT COST I QUANTITY TOTAL COST 1 RESEED/MULCH ACRE $1,200.00 0.2 $240.00 PRELIMINARY COST $240 00 TOTAL COST WITH FACTOR OF 150% $360 00 ESCROW AMOUNT = $1,143.75 X:\906702\EROSCOST.WB2 PAGE 1 of 1 CONSTRUCTION SEQUENCE STANDARD FORM C PROJECT: NEW BELGIAN BREWERY FERMENTATION TANKS SEQUENCE FOR 1997 ONLY COMPLETED BY: DW < DATE: 05/22/97 Indicate by use of a bar line or symbols when erosion control measures will be installed. Major modifications to an approved schedule may require submitting a new schedule for approval by the City Engineer. MONTH 1997 JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER Demolition Grading Wind Erosion Control: Soil Roughing Perimeter Barrier Additional Barriers Vegetative Methods Soil Sealant Other Rainfall Erosion Control Structural: Sediment Trap/Basin Inlet Filters Straw Barriers Silt Fence Barriers Sand Bags Bare Soil Preparation Contour Furrows Terracing Asphalt/Concrete Paving Other Vegetative: Permanent Seed Planting Mulching/Sealant Temporary Seed Planting Sod Installation Nettings/Mats/Blankets Other BUILDING CONSTRUCTIO STRUCTURES: INSTALLED BY: CONTRACTOR MAINTAINED BY: DEVELOPER VEGETATION/MULCHING CONTRACTOR: TO BE DETERMINED BY BID DATE SUBMITTED: 05/97 APPROVED BY CITY OF FORT COLLINS ON: HOI/SF-C:89 Id I 1 APPENDIX A ' EROSION CONTROL SCHEDULE AND COST ESTIMATE 1 1 I I r I I [1 11 I I ICERTIFICATION "This plan for the Drainage and Erosion Control design for the New Belgian Brewery Fermentation Tanks was prepared by me (or under my direct supervision) in accordance with the provisions of the City of Fort Collins Storm Drainage Design Criteria and Construction Standards, for the owners thereof. I understand that the City of Fort Collins does not and will not assume liability for drainage and ' erosion control facilities designed by others." David W. Klockeman, P.E. Colorado Registered Professional Engineer No. 29110 ' For and on Behalf of JR Engineering, Ltd. I I 7 V i [1 I I i I I I Date I Belgian Brewery Fermentation Tanks is less than that proposed in the WW&L Report. Since the original detention areas were sized to include the "future" areas, the existing drainage facilities proposed with the original New Belgian Brewery are adequate to accommodate the Fermentation Tanks. In addition, no new drainage facilities are proposed with the Fermentation Tanks. EROSION CONTROL MEASURES ' Erosion and sedimentation will be controlled on -site by the use of silt fence. (See Appendix for erosion control plan and details.) The measures are designed to limit the overall sediment yield ' increase due to construction as required by the City of Fort Collins. A construction schedule is contained in the Appendix which shows the proposed construction starting in August 1997. ' DUST ABATEMENT During the performance of the work required by these specifications or any operations appurtenant ' thereto, whether on right-of-way provided by the City or elsewhere, the Contractor shall furnish all labor, equipment, materials, and means required. The Contractor shall carry out proper efficient measures wherever and as necessary to reduce dust nuisance, and to prevent dust nuisance, and to ' prevent dust which has originated from his operations from damaging crops, orchards, cultivated fields, and dwellings, or causing a nuisance to persons. The Contractor shall be liable for any damage resulting from dust originating from his operations under these specifications. MAINTENANCE ' All temporary and permanent erosion and sediment control practices must be maintained and repaired as needed to assure continued performance of their intended function. Maintenance is the ' responsibility of the Owner. PERMANENT STABILIZATION For disturbed areas and soil stockpiles not otherwise permanently stabilized, a vegetative cover shall be established within one and one-half years. Vegetation shall not be considered established until a ground cover is achieved which is demonstrated to be mature enough to control soil erosion to the satisfaction of the City Inspector and to survive severe weather conditions. [1 kl �I DRAINAGE ' New Belgian Brewery Fermentation Tanks consists of the proposed addition of storage tanks at the rear of the existing New Belgian Brewery. This site is located in the northeast comer of Buckingham Street and Linden Street. ' This site was included in the "Drainage and Erosion Control Report for New Belgian Brewery, Fort Collins, Colorado", prepared by Water, Waste & Land, Inc., March 30, 1995, and approved by the ' City of Fort Collins Stormwater Utility on April 10, 1995 (WW&L Report). This report addressed the detailed drainage plan and proposed improvements for the overall site with calculations for developed runoff and detention requirements. As part of this plan, areas designated as "Future ' Expansion" and "Future Truck Ramp" were shown and these areas were included in the calculations and the drainage design for this site. ' After discussions with Stormwater, it was agreed that the calculations needed to show that the impervious area proposed with the Fermentation Tanks were less than the "future" areas shown on ' the original plan. The following table is a summary of this analysis: {: •:i .:...i':.:'i::. �: �..::: {:::.:: ...............y..:..::.:..:.....:...:�:...:..�v..............................:,�,,,,,f,...�.:::i�:41#1:��:A1:W��::.1V:11j�'. ,'�I'1�j': �': j)'��(j��:. •{(�.. n:.:i:::i:::::.:�':::::.::... �:.:.::.:. :..:.:::::.::'.......:.:�i: Location Description Area (SF) Area (Acres) Basin A Future Expansion Impervious Area From Original WW&L Report 16,000 0.37 ' (Includes Building and Truck Ramp) Basin A Proposed Fermentation Tanks (Including 6 tanks, 24 tank foundations 7,350 0.17 and 2 pipe chases) ' Difference (Amount of Fermentation Tanks impervious area less than 8,650 0.20 "future" area included in WW&L Report) As indicated in the above table, the calculations show that the impervious area proposed with New ' 2 ' Engineering, Ltd. J R 2620 E. Prospect Rd., Suite 190 4935 North 30th Street ' Fort Collins, Colorado 80524 Colorado Springs, Colorado 80919 (970) 491-9888 • FAX (970) 491-9984 (719) 593-2593 • FAX (719) 528-6613 t 6110 Greenwood Plaza Blvd. Englewood, Colorado 80111 (303) 740-9393 • FAX (303) 721-9019 ' May 22, 1997 ' Mr. Basil Hamdan City of Fort Collins Stormwater Utility ' 235 Mathews Street Fort Collins, Colorado 80524 ' Re: Final Drainage and Erosion Control Report New Belgian Brewery Fermentation Tanks ' Fort Collins, Colorado ' Dear Basil: JR Engineering, Ltd. is pleased to submit the attached Final Drainage and Erosion Control Report for the New Belgian Brewery Fermentation Tanks for your review and approval. The hydraulic, hydrologic, and erosion control evaluation of the site was performed in accordance with the specifications set forth in the City of Fort Collins' "Storm Drainage Design and Criteria Manual". ' If you have any questions regarding the procedures, methodology, or results presented herein, please do not hesitate to contact me at your convenience. ' Sincerely, JR Engineering, Ltd. 1 Tepw. 4&W-4� David W. Klockeman, P.E. Director of Engineering 1 ' Attachment FINAL DRAINAGE AND EROSION CONTROL REPORT FOR NEW BELGIAN BREWERY FERMENTATION TANKS Prepared for: New Belgian Brewing Company 500 Linden Fort Collins, Colorado 80524 (970)221-0535 Prepared by: JR Engineering, Ltd. 2620 East Prospect Road, Suite 190 Fort Collins, Colorado 80525 (970)491-9888 May 27, 1997 Job Number 9067.02