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* COLORADO North Gray Reservoir Rehabilitation <br /> co Colorado Water <br /> Conservation Board Lake Canal Reservoir Company <br /> Substantially Complete July 1, 2016 <br /> North Gray Reservoir South Gray Reservoir <br /> R <br /> t�s. '4.. --,90."4'tr: <br /> ua,�,_ /l j. C J <br /> ,fig , <br /> _ v <br /> :.., :t. <br /> `' Agr...... ,2.4' New Spillway <br /> euw r <br /> _r <br /> ,'"�t rY� :: <br /> �' New Interconnect/Outlet Structure <br /> Project Description <br /> The Lake Canal Reservoir Company obtained a CWCB loan to construct a new spillway on North Gray <br /> Reservoir. The reservoir was under a storage restriction by the Office of the State Engineer (SEO) due <br /> to the inadequacy of the old spillway. The old spillway was a corrugated metal pipe that had corroded <br /> through. <br /> The original project was to abandon the old spillway and construct a new spillway between North and <br /> South Gray Reservoirs. The Project scope increased due to additional video inspection of existing <br /> structures and in coordination with the Boxelder Basin Regional Stormwater Authority's East Side <br /> Detention Facility flood control project. During final design, a video inspection of North Gray <br /> Reservoir's existing outlet pipe and the interconnect pipe between North and South Gray Reservoirs <br /> showed both structures were in need of repair. As this presented a new dam safety concern, the <br /> Company determined to add the abandonment of the existing outlet and the replacement of the <br /> interconnect structure to the Project scope so it could be completed at the same time as the original <br /> spillway project. The new interconnect structure is now used as North Gray's outlet. The Project was <br /> successfully completed in April 2016. <br /> PROJECT DATA <br /> Sponsor: Lake Canal Reservoir County: Larimer it Weld Water Source: Box Elder Creek <br /> Company <br /> Type of Loan: Reservoir Rehabilitation Board Approval Date: September 2011 <br /> Terms of Loan: $204,298 at 2.10% for 30 years <br /> Design Engineer: Smith Geotechnical Engineering Consultants <br /> Contractor: Dietzler Construction Corporation <br /> Project Elements: Abandonment of old outlet works, new outlet structure with 18" diameter HDPE <br /> pipe (interconnect structure), and new 80 LF spillway <br /> Water Project Loan Program - Project Summary <br />