FLOOD04641

• County: Denver
• Community: All
• Stream Name: All
• Basin: South Platte
• Title: Proposed Hydrology for use in Hydraulic Analysis of FEMA Flood Studies and Restudies
• Date: 9/1/1989
• Prepared For: State of Colorado
• Prepared By: Resource Consultants
• Floodplain - Doc Type: Educational/Technical/Reference Information

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1.5

Peak Discharge Swnmary

The 10-, 50-, 100-, and 500-year peak flood discharges to be
used in the hydraulic analyses for all of the stream reaches
included in this study are listed in Table 1.3. Specific
discuss:lon of individual stream hydrology evaluations follows
in SectIons 2.0 through 15.0.

2.0

SOUTH SHOOKS Rl!.t:! HYDROLOGY

2.1 Watershed Description

The South Shooks Run Drainage Basin (SHR) is located in the
center of downtown Colorado Springs as shown in Figure 2.1.
The channel runs primarily from north to south beginning at the
Templeton Gap Floodway adjacent to Templeton Gap Road. After
flowing for 5.3 miles, it ends at the confluence with Fountain
Creek 0.25 miles east of Nevada Avenue and 400 feet north of
Interstate 25. A diversion structure upstream of Constitution
Avenue forces the flow from the upper reaches of the bas in into
the Van Buren Ditch flowing northwest along the Chicago, Rock
Island and Pacific Railroad to Monument Creek. Except under
extreme conditions, this effectively reduces the channel in
question to the 4.3 mile reach occurring downstream of
Constitution Avenue.

Total area of the full drainage basin is 9.80 square miles. Of
this, 1.98 square miles is located in the upper basin which
diverts to Monument Creek. This leaves 7.82 square miles
contributing to the flow in the channel downstream of
Constitution Avenue.

With the exclusion of the Patty Jewett Municipal Golf Course,
the basin consists of well established residential and business
dlstricl:s. Average slopes throughout the watershed range from
an extreme of over 20% on the hillsides of Palmer Park to less
than 1% in the lower reaches of the basin. Soils in the basin
tend toward sandy loams with the exception of the outcrop
complex at Palmer Park and a clayey complex in the vicinity of
Prospect l.ake. Overall, they generally fall in the "A" & "B"
hydrolol~ic categories as defined by the SCS.

The main stream channel has an average slope of 1.0%. At the
upstream end it is a small stream approximately 2-3 feet deep
and 8-10 feet wide. As it flows downstream, some reaches of
the channel attain proportions in the range of 20-30 feet deep
and 50-75 feet wide. Substantial storm sewer collection
systems exist in some parts of the basin; they all drain into
the main channel at various points along its course.

There is one detention storage facility in the basin located
west of Union Boulevard on the Patty Jewett Municipal Golf
Course. All of the drainage from the Palmer Park area,

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RE:~OURCE: CON~ULTI\NT~ INC