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Floods caused by overflow of Tenmile and Meadow Creeks within the c:orporate limits of Frisc:o were studied i II d(~ti1 i 1. The flooding from Jug Creek was studied by approximate methods. Approximate analyses were used to study those areas having a low development potential or minimum flood hazards. The scope and methods of study were proposed to and agreed upon by the Federal Insurance Administration and the Town of Frisco. Those areas studied by detailed methods were chosen with considera- tion given to all proposed construction and forecasted development through 1983. 2.2 Community Description The Town of Frisco is located in central Summit County, in central Colorado. The town is a small mountain community situated just west of Dillon Reservoir and 30 miles east of Vail, Colorado. According to the 1970 census, the population of Frisco was 471 (Reference 1), and it was estimated to be 1000 in 1978 by the County Planning Department (Reference 2). The principal industry in Frisco is tourism, with many residents employed in recreation- related businesses. Tenmile Creek flows easterly through Frisco and discharges into Dillon Reservoir. Tenmile Creek at Frisco has a drainage area of approximately 94 square miles, all within Summit County. The western boundary of the basin is formed by the Gore Mountain Range and Vail Pass, while the eastern boundary is the Tenmile Mountain Range. To the south, the basin is bounded by the Continental Divide. Vegetation along the channel through Frisco consists of sparse woods and scattered brush. The channel bed is mostly cobble material with interspersed boulders. Meadow Creek flows easterly through Frisco into Dillon Reservoir, draining an area of approximately 6 square miles. In Frisco, Meadow Creek is confined mainly to a constructed channel through residential and commercial areas. Flood plain development in Frisco consists mainly of several condo- minium units along Tenmile Creek. There are virtually no buildings in the flood plain along Meadow and Jug Creeks. The corporate limits of Frisco include an area of approximately 550 acres. Approximately 80 percent of the town has been or is being developed, while the remainder is sparsely wooded. Development consists mainly of private residences and condominiums, with a few private businesses. Average annual precipitation in Frisco is 16.7 inches (Reference 3). As an average, approximately 9 inches of this precipitation is due to snowfall and 8 inches is due to rainfall. Average annual temperature in the area is 350F (Reference 4). 3