FLOOD00576

• County: El Paso
• Community: Manitou Springs
• Stream Name: Fountain Creek
• Title: Flood Insurance Study - City of Manitou Springs
• Date: 8/19/1991
• Prepared For: Manitou Springs
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

For floodplain management applications, the map shows by tints, screens,
and symbols, the 100- and 500-year floodplains, f100dways, and the
locations of selected cross sections used in the hydraulic analyses and
f100dway computations.

7.0 OTHER STUDIES

.

The COE prepared a 1974 Flood Plain Information report for Fountain
Creek in Manitou Springs (Reference 4). Discharges and cross section
data determined by the COE were used in the hydraulic analyses for
Fountain Creek downstream of the Road to the Cave of the Winds.

.

A Flood Insurance Study has been prepared for the unincorporated areas
of E1 Paso County (Reference 11). The detailed analysis for Fountain
Creek upstream of the Road to the Cave of the Winds, prepared for the E1
Paso County Flood Insurance Study, was included in the Flood Insurance
Study for Manitou Springs. Sutherland Creek and Ruxton Creek, studied
by detailed methods within the City of Manitou Springs, were not studied
as part of the Flood Insurance Study for the unincorporated areas of E1
Paso County due to the different scopes of study. In addition, the
approximate analysis of Williams Canyon and Beckers Lane Tributary
within the city was not studied as part of the E1 Paso County study due
to the different scopes of study. In all other areas, the two studies
are in general agreement.

A Flood Insurance Study has also been prepared for the adjacent City of
Colorado Springs (Reference 16). The results of this study are in
agreement with the results of the Colorado Springs study.

.

A floodplain study for Sutherland Creek in the Crystal Hills area of
Manitou Springs was printed in July 1975 (Reference 17). The lOa-year
flood discharge of 750 cfs determined in that study was found to be too
low because an assumption was made in that study that Fountain and
Sutherland Creeks would have coincident flood events. The contributing
discharge of Sutherland Creek to Fountain Creek at their confluence is
1,000 cfs in the COE report (Reference 4), and the 1975 floodplain study
for Sutherland Creek assumed that this was the total discharge of the
100-year storm on Sutherland Creek. The COE report did not assume
coincident flood events on the two streams, and the Sutherland Creek
discharge of 1,000 cfs at the south actually represents a far more
frequent event.

.

This study is authoritative
herein either supersede
determinations.

for the purposes of the NFIP; data presented
or are compatible with all previous

8.0 LOCATION OF DATA

Information concerning the pertinent data used in the preparation of
this study can be obtained by contacting the Natural and Technological
Hazards Division, FEMA, Denver Federal Center, Building 710, Box 25267,
Denver, Colorado 80225-0267.

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