Laserfiche WebLink
STATE OF C�LOR�DO <br />Colorado Water Conservation Board <br />• Department of Natural Resources <br />721 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Phone: (303) 866-3441 <br />FAX: (303) 866-4474 <br />MEMORANDUM <br />� <br />TO: <br />FROM: <br />DATE: <br />SUBJECT: <br />Colorado Water Conservation Board Members <br />��. <br />�-���i� <br />• \1 <br />Roy Romer <br />Governor <br />�ames 5. Lochheatl <br />Executive DireROr, DNR <br />Daries C. Lile, P.E. <br />Direc[or, CWCB <br />� <br />Bill Stanton, P.E., Chief, Project Planning and Construction Section • <br />Bill Green, P.E., Planning Engineer �� � � <br />June 26, 1998 <br />Agenda Item 17. b., July 13-14,1998 Board Meeting - Ryan Gulch <br />Reservoir Co. - Request for Feasibility Study Grant <br />Introduction <br />The Ryan Gulch Reservoir Company of Loveland is requesting a grant of $5,000 for a <br />feasibility study of a spillway enlargement project. <br />Background <br />The Ryan Gulch Reservoir Company was incorporated in 1903. The Company has 10 <br />shareholders with 100 shares of stock and an average annual yield of 8.0 acre-feet per <br />share. Assessments are currently $50 per share and the Company has no existing debt. <br />Ryan Gulch Reservoir is located on the south side of Loveland about one mile west of � <br />Highway 287 in Larimer Counry. The reservoir has an estimated capacity of 800 acre-feet <br />but is currently restricted by the State Engineer's Office (SEO) to 645 acre-feet of storage <br />due to inadequate spillway capacity. The dam is presently considered a Class II structure <br />by the SEO, which means the spillway must be capable of passing 50 percent of the <br />Probable Maximum Precipitation (PMP) likely to occur in the drainage basin above the <br />dam. <br />Discussion <br />• Ed Toms, P.E., has conducted a hydrologic analysis and an incremental damage <br />assessment for the reservoir and the Company is requesting that the SEO classify the dam <br />as a Class III structure based on that analysis. A Class III structure is required to pass the <br />100-year flood event, which is considerably less than one-half of the PMP. <br />