FLOOD01622

• Designation Number: 52
• County: El Paso
• Community: El Paso County Unincorporated
• Title: Flood Hazard Analysis - Portions of Jimmy Camp Creek and Tributaries, El Paso County, Colorado
• Date: 10/1/1975
• Designation Date: 3/1/1976
• Prepared By: US SCS, Denver
• Floodplain - Doc Type: Floodplain Report/Masterplan

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SOURCES OF DATA AND TECHNICAL STUDIES

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Maps

Peaceful Valley Road trossing at Jimmy Camp Creek.

Base maps were developed from U.S. Geological Survey topographic

maps (scale 1:24,000). Flood hazard areas are plotted on aerial photo-

mosaic maps prepared especially for. this study. The low level aerial

photography wa5 provided by EI Paso County and was flown In May 1973.

Detailed topographic mapping and cross-section data were produced photo-

grammetrlcally by the Soil Conservation Service. This data was used to

compute water surface profiles and the flood hazard area outlines. The

photos were reproduced on a scale of I" = 400' with a 4-foot contour

interval and 2-foot supplementary contours in the flatter areas. Map

topography complies with national map accuracy requirements. The photo-

graphic image: contains displacements due to relief and it does not match

the topographic detail in all areas.

Surveys

Engineering field surveys for vertical and horizontal control, and

cross-sections at road and bridge crossings were conducted by the Soil

Conservation Service. Survey crew assistance was provided by EI Paso

County. The vertical control was tied to mean sea level elevations

using U.S. Geological Survey and U.S. Coast and Geodetic Survey bench-

marks. Soils and cover data pertinent to the Jimmy Camp Creek watershed

were extracted from SCS reports for El Paso County and field checked for
use in the hydrologic analyses.

~ridge repair on link Road and Jimmy Camp Creek
FLOOD DAMAGES -- JULY 18, 1972