FLOOD05212

• County: Larimer
• Community: Fort Collins
• Stream Name: Boxelder Creek, Spring Creek, Dry Creek
• Basin: South Platte
• Title: Flood Control for Boxelder Creek at Fort Collins
• Date: 2/1/1993
• Prepared For: Fort Collins
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Floodplain Report/Masterplan

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below Larimer and Weld Canal in Fort Collins, where the channel does nOl e:dst in
several areas. Upstream from the Alta Vista Community, the Dry Creek channel is
undefined e:>:cepl for a small drainage ditch JUS! downstream from College Avenue.
Extensive commercial and residential development is located within the Dry Creek
flood plain between College Avenue to the Larimer and Weld Canal. Downstream
of the Larimer and Weld Canal, the Dry Creek channel has been obliterated from
Willox Lane to downstream from lIle trailer court. In lIle Fort Collins AilJlMk area,
the disposal of building materials and other f1llmaterial inllle Dry Creek channel
hasreduc:editscapacity.

Dry Creek has two major tributaries, Spring Gulch and Park Creek. Spring
Gulch drains into Park Creek in lIle upper lIlird of the basin. Park Creek dr.lins into
Dry Creek near lIle center of lIle basin. Flows from Dry Creek and its tributaries an:
intercepted by two major, on-stream reservoirs (park Creek Reservoir and Douglas
Lake), 15 off-stream. reservoirs, and 7 trans-basin irrigation canals which cross the
drainage basin.

Land use m the Dry Creek basin has been primarily agricultural with the
exception of the Fort Collins area. During the last 40 years urban development has
grown extensively in the lower reach below U.S. Highway 287. Development has
obliterated the Dry Creek channel, especially near College AVenue. The land use
immediately downstream from College Avenue is primarily residential, with
commercial development along College Avenue. Near the confluence, land use
includes commercial and light industrial dcvdupmt;:nl. This area is commonly
referred to as the Fort Collins Airpark.

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