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<br />~'lATE UF CULOMDO <br /> <br />. <br /> <br />Colorado Water Conservation Board <br />Department of Natural Resources <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Phone: (03) 866-3441 <br />, FAX: (03) 866-4474 <br /> <br />MEMORANDUM <br /> <br />TO: Colorado Water Conservation Board Members <br /> <br />FROM: Mike Serlet, P.E., Chief, Project Planning and Construction <br />Bill Green, P .E., Manager of Planning ~ ~ ' ' <br /> <br />DATE: May 21, 1999 <br /> <br />SUBJECT: Agenda Item 21, May 24-25, 1999 Board Meeting - Water Project <br />Construction Loan Program - Emergency I~frastructure Repair <br />Account - Model Land and Irrigation Company - Model Reservoir <br /> <br />Introduction <br /> <br />The Model Land and Irrigation Company is applying for a loan from the Emergency <br />Infrastructure Repair Account for repairs to Model Reservoir. The reservoir is located about 13, <br />miles northeast of Trinidad in Las Animas County. Please see the attached map. <br />' , <br /> <br />The Company's engineering consultant, URS Greiner Woodward-Clyde, submitted a draft <br />,feasibility study on May 20th. Staff is still in the process of reviewing the feasibility study and <br />discussing the technical and fmancial aspects of the project with the Company's representatives <br />and consultants in order to be able to make a fmal det~rmination of feasibility. ' <br /> <br />Backe:round <br /> <br />Model Reservoir is a regulating reservoir used to store water' for the irrigation of about 6,000 <br />acres of cropland below the dam. The water is used primarily by Oxley Farms. Water supplies <br />originate from local runoff and from purgatoire River water, which is stored in Trinidad <br />Reservoir. Reservoir capacity below the invert of the existing spillway is estimated at between <br />4,500 and 6,000 acre-feet. <br /> <br />During the storm event, which occurred earlier this month, a very large amount of runoff <br />originating in the local drainage basin flowed into Model Reservoir and overtopped the outlet <br />conduit on May 2nd. (An excavation for field analyses above the outlet conduit resulted in a <br />discharge elevation lower than the spillway crest.) The floodwaters damaged the outlet gate <br />tower and eroded a portion of the dam embankment. Because of the flood damages, the owners <br /> <br />Bill Owens <br />Governor <br /> <br />Creg E. Walcher <br />Executive Director, DNR <br /> <br />Peter H. Evans <br />Director, CWCB <br />