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Wyoming Water Development Commission 
Harry C. LaBonde, Jr., PE, Director 
6920 Yellowtail Rd, Cheyenne, WY 82002 
Phone: 307-777-7626 

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113.PROJECT:Sheridan Hydro Power/Sheridan Pipeline Rehabilitation
SPONSOR:City of Sheridan
LOCATION:Sheridan County
PROGRAM:New Development
Purpose Chapter Session Account Appropriation Due Date
Level II 7 2002 I $50,000 2004

The City of Sheridan would like to pursue a detailed cost analysis of the rehabilitation of its 16inch raw water feed line. They also would like to determine the feasibility and cost of placing hydropower generators in their raw water system. Their system has three raw water supply lines that could potentially be used to generate potential hydropower. The Beckton Hall pressure reduction vault has both 20 and 30-inch lines. The pressure in these lines is reduced from 250 psi to 85 psi. A power generator could be installed to produce electricity and to reduce system pressures. The vault was designed with hydropower in mind. A third vault reduces the pressure in the 16-inch line

The 2002 Level II Study indicated only the Beckton Hall pressure reducing station was feasible as a hydropower site out of 35 pressure reducing stations examined. The benefits were not large enough for the city to pursue it at this time. However, the corrosion in the 16-inch line has severely restricted the flow. Therefore, the City of Sheridan and the Sheridan Area Water Supply Joint Powers Board (SAWSJB) are requesting funds to replace their 12 mile long 16 inch line with a new 20" line. The City would also like to install two shorter transmission lines, which will directly feed water to the City's South Hill area.

The Level III design and construction costs are displayed below:

Final Plans and Specifications$ 712,000
Permitting and Mitigation$ 25,000
Legal Fees$ 27,000
Access and Right-of-way$ 272,800
Treated Line Upgrade$8,151,407
South Hill Lines$ 867,790
Total Project Cost$10,055,997($10,056,000)

The WWDC recommends the project be incorporated in the Rehabilitation Program at Level III with an appropriation of $5,184,000. The financing plan includes a 50% grant, ($5,184,000) and the other 50% will come from the State Revolving Fund and sponsor funding.

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