WSPC07299

• File Number: 5000.100
• Description: Flood Protection Section - Coal Creek Project
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 12/1/1978
• Author: Unknown
• Title: Coal Creek and Rock Creek Watershed - Reconnaissance Report
• Water Supply Pro - Doc Type: Report/Study

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TABLE 1. COAL AND ROCK CREEK WATERSHED
COMPARISON OF ALTERNATIVES

Coa 1 Creek
N.E. Coa 1 Creek Floodwater
Coal Creek Rock Creek Lafayette South Erie Diversion Flood
F.R.S. F.R.S. F.R.S. F.R.S. Dike Proofi ng
FLOODI'iATER
RETARDING DAM
Height (ft.) 65.0 48.5 60.3 53.3
(m) (20) (15) (18) (16)
Storage (ac. ft.) 2,080 731 8,434 8,300
(m3) (2,565,680) (901,689) (10,403,339 ) (10 ,238 ,050)
FLOODWATER
DIVERSION DIKE
Length (ft. ) 6,150
(m) (1,875)
Height (ft. ) 1.6-7.3
(m) (0.5-2.2)
Flood proofing
structures (#) 174
Total Con st. Cost 4,500,000 4,405,700 4,512,400 133,500 4,553,900
Engi neeri ng 630,000 616,800 631,800 18,700
Project Admi n. 765,000 749,000 767,200 22,700
Land Ri ghts 171 ,000 609,000 613,000 205,3aO '
Relocations 64,400
TOTAL 6,066,000 6,380,500 6,524,400 444,600 4,553,900

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