Laserfiche WebLink
<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />of 9,364 (32 gage) when a large wet area developed at and above the downslream loe of the dam near <br />the left groin. Waler was promptly released from the reservoir, As the storage level dropped below <br />elevation 9362 (30 gage), the wet area near the toe began to dry. It was concluded that seepage from <br />the left abutment caused the wet area The State Engineer's Office revised the reservoir storage <br />reslriction to elevation 9363 (31 gage). <br /> <br />A large seepage pond presently develops at high water levels below the downstream face of the dam <br />embankment between Stations 114 + 00 to 117 + 00. The pond responds appropriately to reservoir levels, <br />It is thought that seepage from the reservoir contributes to the pond, but that the pond. in turn. suffers <br />seepage losses. It is therefore probable that there is no seepage blocking hydraulic pressure balancing <br />between the reservoir and the pond, <br /> <br />I <br />I <br /> <br />The Cily of Greeley contracted with McCall-Ellingson & Morrill, Ine, using subcontractor Woodward-Clyde <br />Consultants in August, 1990 to prepare a dam rehabilitation feasibility report. The study Is partly <br />financed by the Colorado Water Conservation Board. The report Is prepared in accordance with the <br />Colorado Water Conservation Board guidelines. <br /> <br />I <br />I <br />I <br />I <br /> <br />The feasibility report Includes chapters on general information on the City of Greeley, use of waler by <br />irrigated land, and municipal use of water, water supply and water quality, Chapter 5,0 includes details <br />of sile inspections, subsurface Investigations, seepage losses. flood hydrology, spillway adequacy, and <br />alternatives for dam and reservoir rehabilitation. The selected feasibility design and recommended <br />inlerim operating condilions are Included. The following chapters include estimated project Cosl and <br />economic and financial considerations, <br /> <br />I <br />I <br />I <br />I <br />I <br />