PROJ01869 - Laserfiche WebLink

Home Browse Search

Greeley and Loveland Irrigation Company January 22-23, 2003 Agenda Item 19c the meantime they have identified deficiencies in the Boyd Lake outlet, and desire to proceed with the proposed project to take advantage of the construction opportunity afforded by low lake levels. Boyd Lake is the largest reservoir in the GLlC system, with a surface area of 1,750 acres and a capacity of 48,874 acre-feet. The dam is a Class 1 embankment dam and has a height of 40 feet, a crest length of 10,729 feet, and a spillway width of 20 feet. Colorado State Parks has recreational surface rights to Boyd Lake. Water is typically delivered into the GLlC system by a pump station on the east side of the lake. On the south side of the lake, the outlet system consists of a high-level diversion, used to divert water in and out of the GLlC Canal, and a low-level outlet works. The low- level outlet discharges upstream of US Highway 34, and is used to deliver water to the Big Thompson River where GLlC uses it water primarily for exchanges. This loan request is for replacement of the low-level outlet works. It currently consists of a 400-foot long, 4' x 4' box culvert, flowing into a gate chamber, and then into a 4' x 3' concrete arch tunnel for approximately 300 feet. It then flows into a 1800' long, 36" diameter corrugated metal pipe. All of the outlet works is in deteriorated condition. Feasibilitv Studies The GLlC, through their engineer Boyle Engineering Corporation, has completed the feasibility study in accordance with CWCB guidelines. The study includes an assessment of alternatives available for rehabilitation/replacement of the low-level outlet. It also includes a report prepared by Gauthiere Engineering, dated January 23,2002, which describes the deficiencies of the outlet system. Proiect Soonsor The GLlC is a Colorado mutual ditch company and non-profit corporation registered in the State of Colorado, in good standing. The Company was incorporated in 1900. There are 170 shareholders holding 1644 shares of stock. The GLlC exists in perpetuity and sets annual assessments that are assigned to the stockholders according to the number of shares they own. The Board of Directors has the authority to incur debt as they deem necessary to carry out the purposes of the company, and to pledge assets of the company to secure repayment of loans. It also holds the power to refuse to deliver water to shareholders who fail to pay their assessments, and the power to take legal action against delinquent stockholders, and offer forfeited shares for sale to pay for unpaid assessments. Revenues are derived principally from stock assessments, running charges, and small amounts of revenue coming from leasing rights for recreational use of several reservoirs. Of the1644 shares of stock there are 781.65 shares in agricultural ownership (47.6%) and 862.35 shares in municipal ownership (52.4%) - Greeley (760.51 shares) and Evans (101.84 shares). Water Riaht~ GLlC owns two diversion points on the Big Thompson River, the GLlC Canal diversion and the Big Barnes Ditch diversion, with a total water right to divert of 360 cfs. In addition, they have a 49,000 acre-foot storage right for Boyd Lake, and a 12,700 acre-foot storage right for Lake Loveland. On the average GLlC delivers 37,812 acre-feet per year to its shareholders (1644 shares x 23 acre-feet per share). Proiect Need The purpose of the new low-level outlet is to address SEO dam safety criteria, and to enable the GLlC to ensure water deliveries to its shareholders. Presently, the SEO is not requiring the GUC to replace the system, however they have indicated concern with the safety of the dam due to the deteriorated condition of the outlet system. Deficiencies in the system include significant cracking, Page 2 of 7