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,� U N R COLORADO Sand Hitt Lake Outlet Works Rehabilitation Project
<br /> Water
<br /> It Conservation Board Platte Valley Irrigation Company
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<br /> :, ,�''y" lY . �'.� ,+ �-- Outlet Pipe
<br /> Developing a ,. ,f. ..a r: ,,.
<br /> M.. Slip-Lining
<br /> Sinkhole p" g
<br /> New Outlet Works
<br /> Project Description
<br /> In January 2014, the Company was in the process of replacing Sand Hill Reservoir's 48" outlet gate. During
<br /> construction a sink hole developed in the dam around the outlet structure, prompting an emergency
<br /> response from the Company and the SEO's Dam Safety Branch. The Project team, in close coordination
<br /> with the SEO, developed a project approach for the completion of the rehabilitation of the outlet
<br /> structure. The repair efforts included cutting out the effected sink hole location in the dam, demolishing
<br /> the existing outlet structure and rebuilding the dam and new outlet structure back up to SEO
<br /> specifications. The slide gate was relocated from the interior of the dam to the front of the outlet intake
<br /> in the reservoir. Additionally, the Company slip-lined the existing RCP outlet pipe.
<br /> P R O J E C T D A T A
<br /> Sponsor: Platte Valley Irrigation County: Weld Water Source: South Platte
<br /> Company River, C-BT
<br /> Type of Loan: Reservoir Rehabilitation Board Approval Date: November 2014
<br /> Terms of Loan: $745,380.00 ® 2.00%for 30-years (actual amount drawn: $738,466.25)
<br /> Design Engineer: Franchetti Engineering
<br /> Contractor: Asian Construction, Inc
<br /> Project Elements: Emergency repair of dam outlet works. Included outlet redesign of placing slide
<br /> gate into reservoir, and slip lining of RCP pipe.
<br /> Water Project Loan Program - Project Summary
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