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. . . 12~ 11. Larimer County - Dry Creek Multi-Obiective Floodplain Proiect. Authorization: SB 96-152, Amended SB 97-8 County: Larimer - N. of Ft. Collins Water Source: Dry Creek Basin Project Yield: N/A Terms of Loan: $920,000 @4.25% for 30-years Project Type: Flood Mitigation Dry Creek is located north of Fort Collins, with a majority of its 75 square miles of drainage basin area located within Larimer County. The uppermost portion of the basin consists of rangeland and irrigated pastures. The lower portion of the basin within the city limits of Fort CollinS consists of commercial, industrial, and residential development. Over the years tbe lower 2/3 of the Dry Creek floodplain corridor has almost been completely eliminated due to development. The 100-year runoff for Dry Creek is 5,022 efs. The intent of the project is to control floodwaters in the upper basin area by means of detention facilities to reduce the peak discharge from 5022 cfs to 500 cfs above the Weld Canal, utilize a specific reach of the Weld Canal to transport the 500 cfs, and construct approximately 1.5 miles of new open chaIUlel from the Weld Canal to a desigtlated point along Dry Creek, located downstream of existing development. The proposed improvements would remove over 800 structures out of the Dry Creek regulatory I DO-year floodplain. The project is currently in the feasibility/preliminary design phase. Tentatively the project schedule is contingent upon future loan approval, which is currently planned to be presented to the Board at the November 2001 meeting. 12. The Town of Monument - Monument Dam Rehabilitation Authorization: Severance Tax Trust Fund Water Source: Monument Creek Terms of Loan: $2,081,000 @5.50% for 30~years County: El Paso - W. of Monument Project Yield: 450 acre-feet Project Type: Dam Rehabilitation Monumet1.t Lake is located on Monument Creek on the west side of the Town of Monument. The existing reservoir capacity is approximately 300 acre-feet, which is planned to be increased to 450 acre-feet be means of dredging. The existing lake is Wlder limited storage by the State Engineer's Office, due to deteriorated outlet works, tree growth on the dam face, and inadequate slope protection and spillway capacity. The proposed proj eet involves rehabilitating the spillway, outlet works, and dam embankment, to include; replacement of the existing outlet spillway chute below the spillway crest, removal and replacement of the top 10 feet of the dam embankment to clear all existing vegetation, replacement of the outlet works with a new 24- inch steel pipe, and the removal of approximately 150,000 cubic yards of sediment from the lake bottom. Boyle Engineering, of Littleton, Colorado, has completed the design and the project is currently in the bidding process. Construction is tentatively scheduled for September of 200 1. 13. Pine River Irrigation District - Pump and Pipeline Proiect Authorization: County: La Plata Water Source: Pine River Project Yield: 1,600 acre-feet Terms of Loan: $341,000 @3.50% for 20-years Project Type: Distribution System The Pine River Irrigation District operates Vallecito Reservoir on the Pine River located approximately 15 miles north of the Town of Bayfield. The eastern half of La Plata County is considered a water critical area, meaning that all of the water in the basin is used during certain periods. Most of the people in this area are utilizing groundwater resources that have limited quantity and are of relative poor quality. The purpose of the project is to provide a rural water system that is adequate in quantity and quality to the water critical areas in La Plata County. The overall project has many components, however, this particular loan is for diverting water from Vallecito Reservoir to a pressurized treatment plant The proposed project involves tappmg into the existing outlet tunnel, constructing a 500 foot pipeline to convey water to the trea1ment plant, a bridge over the spillway chute, and a pump when the reservoir water level is low or to pressurize the treatment plant. Harris Water Engineering, of Durango, Colorado, is preparing the design plans and specifications, which should be complete by the end of July, 2001. The project is tentatively scheduled to connnence construction in the fall of 2001.