FLOOD00824

• County: Summit
• Community: Frisco
• Stream Name: Blue River Basin
• Title: Hydrology for Flood Insurance Study
• Date: 3/10/1992
• Prepared For: Frisco
• Prepared By: Muller Engineering Company, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

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Snake River Basin

The Snake River Basin forms the easternmost section of the Blue River Basin. The
Snake River Basin drains in a westerly direction, from an elevation of 14,270
feet at Grays Peak along the Continental Divide south of Loveland Pass, to Dillon
Reservoir at an elevation of 9,000 feet. The basin is approximately 7 miles wide
throughout and 12 miles long with a drainage area of 76 square miles at Dillon
Reservoir. The channel slope ranges from 5.7% in the upper basin above the Town
of Montezuma to 1.1% in the study reach near Keystone Ski Area (Fig. 1). The
study reaches within the Snake River Basin include a portion of the North Fork
of the Snake River and a portion of the Snake River near Keystone (Fig. 3).

Tenmile Creek Basin

The Tenmile Creek Basin drains to the north, then northeast into Lake Dillon from

the Fremont Pass vicinity. This basin parallels the Upper Blue River basin with

the Tenmile Range dividing the two. The western boundary of the basin is formed

by the Gore Range and Vail Pass, and the southern boundary is the Continental

Divide. The upper basin is characterized by an open rolling terrain. In

contrast, the lower basin consists of the narrow winding Tenmile Canyon. The

total drainage area is 94 square miles at Frisco, with 35 square miles lying in

the upper basin above the confluence with West Tenmile Creek. The basin width

is 7 miles and the total basin length is about 14 miles. The Creek slopes at

about 1. 4% at Fri sco, 2% in the canyon, and 2.7% in the upper bas in. The

elevations in the basin range from 13,000 feet above Copper Mountain to 9,000

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