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C150036 Feasibility Study
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C150036 Feasibility Study
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Last modified
7/21/2010 10:03:13 AM
Creation date
7/3/2007 9:46:12 AM
Metadata
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Template:
Loan Projects
Contract/PO #
C150036
Contractor Name
Weld County Tri Area Sanitation District
Contract Type
Loan
Water District
2
County
Weld
Bill Number
HB 00-1419
Loan Projects - Doc Type
Feasibility Study
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� <br /> II <br />D. Alternative Evaluation <br />Summary of Elcisting Storm Drainage Problems: <br />As noted earlier in this study, there are currently no significant existing storm <br />water detention facilities in the vicinity of Dacono, Frederick, Evanston, and <br />Firestone. In addition, the Tri-Town Drainageway is currently a small earthen <br />channel with a capacity to convey somewhere between a 2-year and a 10-year <br />existing condition storm event runoff. Storm events greater than the existing <br />channel capacity flow overland through the communities causing flooding of <br />residential homes, businesses, and streets as depicted by the cross hatched areas <br />shown on Figure 5. <br />The existing drainage facilities capacities from the south side of the Town of <br />Frederick, north to Firestone Lake (Milavec Lake), as shown on Figure 2 are <br />described in the table below: <br />Existing Drainage Facilities Capacities <br />Description Capacity in cfs Source <br />8th & Main Street 6' H x 8' W RCBC 650 RMC <br />Open channel 8th to lst Streets 335 RMC <br />lst (WCR 16) 6'H x 10'W RCBC 710 ACE <br />Open channel WCR 16 to WCR 18 660 ACE <br />WCR 13 6'H x 50'W Bridge 1,500 ACE <br />WCR 18 6' H x 17.5' W Bridge 750 ACE <br />c:apacity in crs = prior to overtopping <br />RMC = Rocky Mountain Consultants <br />ACE = Anderson Consulting Engineers <br />WCR = Weld County Road <br />Summar3� of Proposed Storm Drainage Solutions: <br />Based on the three planning scenarios simulated within the I-25 Corridor Master <br />Drainage Plan Go�lding Hollotiv and Tri-Town Basins Soicth Weld Cotcnty, those <br />being: <br />1. Existing condition hydrology with existing facilities, <br />15 <br />
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