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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TABLE 4.3 -=- SUM~~RY OF SPR DISCHARGES BY RCI

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DRAINAGE AREA PEAK DrSCHARGE(1) (cfs)
LOCATION m\.!ar.Q mil etl 10 YR 50 YR 100 YR 500 YR
SPR 1 1.19 390 750 1,010 NA(2)
SPR 2 1. 35 400 800 1,100 NA(2)
SPR 3 2.08 580 1,170 1,600 NA(2)
SPR 4 2.16 210 510 870 1,800
SPR 5 2.53 170 360 450 720
SPR 6 2.53 170 350 440 720
SPR 7 2.62 170 290 320 470
SPR 8 2.76 290 440 530 720
SPR 9 3.06 640 930 1,120 1,500
SPR 9a 3.11 660 970 1,170 1,600
SPR 10 3.63 890 1,350 1,660 2,340
(1) These value-s result from the 24-hour AMC II storm.
(2) The 500-year discharge was not determined for points outside the
study reach.

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5.0 FIS)IERji J:LAN'{Qtl LfEMA Spring Run) HYllROLOGY

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5.1

Watershe,d Descri.ptIon

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Fishers Canyon (FC) is the southern most basin on the west side
of Fountain creek being investigated in this study. rt is
located just south of the Spring Run Basin and approximately
one-half mile north of the Fort Carson Military Reservation as
shown in Figure 5.1. In previous FEMA studies, this drainage
was known as "Spring Rurl." In order to clarify it from the
true Spring Run to the north, the name "Fishers Canyon," which
appears on USGS topographIc maps, has been adopted.

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Similar to both Spring Run and Cheyenne Run, this basin
originates on steep western slopes and flows eastward to
Fountain Creek. Upper elevations exceed 9,000 feet with slopes
of up to 55%. The lower elevations in the eastern section near
Interstate 25 are down to 5,800 feet with slopes of 4 to 5%.
With averages slopes of 1.5 to 3%, the most level part of the
basIn Is the area referred to as Cheyenne Meadows, which is
along the main stream channel between Loomis Avenue and State
Highway 115.

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Total area of the watershed is 5.3 square miles. Most
development is limited to the lower areas as the western slopes
are quite steep. The Broadmoor SkI Area is located within this
basin; the majority of the land west of it is undeveloped. The
lower areas are close to being fully developed with residential
dwellings the primary land use.

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R€~OURC€ CON~UlTI\NT~ INC

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