FLOOD07100

• County: Larimer
• County: Weld
• Community: Cache La Poudre River Basin
• Basin: South Platte
• Title: Vol I Flood Hazard, Dam Safety and Flood Warning-Cache La Poudre River Basin
• Date: 10/1/1981
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

Bellvue and Laporte, (each of which had a population of less than 1,000

in 1970), Fort Collins, and Greeley. The 100-year flood plain of the

Cache la Poudre River from the canyon mouth to the South Platte River

covers abDut 12,700 acres. Most of the town of Wellington, with an

estimated population of 691 in 1980, lies within the flood plain of

Boxelder Creek.

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Adjacent to Greeley the flood plain is mDderately developed; it

contains farms, pasture, feedlots, gravel pits, and commercial and

residential development. A large number of buildings are located in

the flood plain on the northeast side of Greeley. In addition,

railroads, state and local roads, and public utilities are subject to

flooding.

In the Fort Collins area, development is generally limited to

Laporte, to an area at the U,S. Highway 287 crossing north of Fort

Collins and to an area near the Colorado Highway 14 crossing east of

the city.

A detailed flood damage analysis was made for the communities of

LaPorte, Fort Collins, and Greeley. Table 8 summarizes data on the

flood hazard potential at these urban areas. Damages are for buildings

and contents and do not include damages to streets and u'ilities or

emergency and cleanup costs, Price levels are indexed to S>ptember

1980.

The rapid development of land arDund Fort Collins and Greeley may

result in new flood hazard areas. Specific areas of concern include

the Spring Creek and Fossil Creek flood plains near Fort Collins, the

flood plain of Sheep Draw near Greeley, and the rather undefined flood

plain Df the watershed near the city of Windsor.

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