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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At the bottom end of the basin near Interstate 25 is what used
to be the Stratmoor Golf Club. This facility has been
abandoned and the grounds have regressed to poor conditions due
to the 'withdrawal of irrigation.

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Soils for the basin are categorized as loamy, but with
signifIcant percentages of clay in some areas. Substantial
rock outcrops exist at the hIghest elevatIons up on the
mountain side. In general, the steep upper sections of the
basIn are type "C" soils. The remainder of the basin falls in
a mixed "BleIl category of soils.

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The western area of the watershed can be recognized as two
dIstinct subbasins north and south. All of the flow for the
north subbasin collects at Curr Reservoir which is northwest of
the intersectIon of State lIIghway 115 and Cheyenne Meadows
Road. The south subbasIn comprises what is known as FIshers
Canyon ,md is a narrower. deeper drainage course. It opens out
onto fl.ltter terrain about 3,000 feet west of State HIghway 115
and flo'ws northeast toward the intersection of Highway 115 and
Cheyenne Meadows Road. It enters a concrete-lIned channel
which directs it to a crossing under the highway before
reaching Cheyenne Meadows Road.

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Outflow from Gurr Reservoir enters a grassed waterway running
southwest along State lIighway 115 for several hundred feet
before crossing under the highway. It continues parallel to
this road until it crosses under Cheyenne Meadows Road and
intersects with the channel from Fishers Canyon. At thIs
point, the combined flow is directed east into the improved
channel of the Cheyenne Meadows Subdivision. This channel
continues down to Eastmeadow Drive; it consIsts of a wide
grass-lined trapezoidal section with a riprapped low flow
sectIon in the middle. From Eastmeadow Drive to LoomIs Avenue,
flow Is in a concrete-lIned channel.

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After crossing under Loomis Avenue, the stream enters a deeply-
incised natural channel that flows under a railroad bridge and
B Street before bending toward the northeast. This channel
continues another 2,000 feet and then enters the grounds of the
former Stratmoor Golf Club. At this point there used to be a
series of ponds the rest of the way to Interstate 25. The dams
have all been breached and the channel is somewhat meandering
as it flows through these old structures. There is no storage
remaining in these faIled structures.

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After crossing under Interstate 25, a straight natural channel
carries the flow the remainIng 1,200 feet to the confluence
with Fountain Creek. The full length of the drainage channel
from Curr Reservoir to Fountain Creek is 2.6 mIles at an
average slope of 1.5%.

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Little information was available concerning storm sewer
configurations. It was assumed that whatever storm sewers

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R€~OURC€ CON~UlTI\NT~ INC

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