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,7, COLORADO Emergency Big Dam Diversion Structure Repair <br /> CO , , Colorado <br /> Water <br /> . Conservation Board Consolidated Home Supply Ditch and Reservoir Company <br /> Project Closeout January 1, 2017 <br /> - .+ley "'`v <br /> „J... .. � ZA ra. .-. <br /> 1i1s <br /> �y a <br /> +F s T1. , +fit � :i, :?,,....40:.; <br /> YZ <br /> —ism ,—;1,:,*-,;:: �{• ;�7.t.�.r, .... <br /> /1 ^ }" ,1 Bkµ. .js 41 <br /> ..-.....4-',,,- !i ip" <br /> • Y1 <br /> t ....Or — '-' '41"' <br /> tt <br /> 6-1. tv t -_, 1vr f 'J <br /> - 041111 ,,. ,, , <br /> - AtriVA -- <br /> , <br /> t� } 7 '.'►. r P� .. .+..•4 <br /> Project Description <br /> During the unprecedented flood of September 2013 in the tributaries to the South Platte River, a <br /> significant number of diversion structures and dams along the river corridor were damaged including <br /> the Company's "Big Dam" diversion structure. During the flood, the river overtopped the structure by <br /> approximately ten feet. The top five feet of the masonry structure was washed out and the mortar <br /> between masonry blocks on the north abutment was partially lost. Construction activities on the dam <br /> included the installation of new masonry blocks, a concrete cap, and a new spillway with an adjustable <br /> obermeyer gate. Construction on the dam required the reconfiguration of the company's headgates. <br /> Though not directly attributable to the flood, the Company chose to replace its sand out gates, control <br /> gates, and the parshall flume as they were in poor condition needing replacement. The company has a <br /> FEMA Project Worksheet for the dam and headgates and are in the process of seeking reimbursement <br /> for eligible costs. <br /> PROJECT DATA <br /> Sponsor: Consolidated Home County: Larimer Water Source: Big Thompson <br /> Supply Ditch 8 Res. Co. River <br /> Type of Loan: Diversion Rehabilitation Board Approval Date: October 2013 <br /> Terms of Loan: $1,858,400 at 1.95% for 30 years <br /> Design Engineer: Deere Et Ault Consultants <br /> Contractor: Gerrard Excavating <br /> Project Elements: Masonry dam reconstruction; 6'x20' Obermeyer gate (spillway) w/ control house; <br /> (2) 5'x7'6" headgates; (2) 6'x7'3" sandout gates; (2) 6'6"x6'6" Control gates; acess road, walkways, <br /> new parshall flume <br /> Water Project Loan Program - Project Summary <br />