WSP02645

• File Number: 5700
• Description: Flood Protection Section - Flood Control Projects
• State: CO
• Basin: Statewide
• Date: 7/1/1985
• Author: BRW Inc - WRC Engine
• Title: Feasibility Study for the Cherry Creek Basin Drainageway - for Cherry Creek Basin TAC and Parker-Jordan Metropolitan District
• Water Supply Pro - Doc Type: Report/Study

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II. GENERAL STUDY AREA DESCRIPTION

A. Study Area

The study area consists of the reach of Cherry Creek from Arapahoe Road to
the Arapahoe/Douglas County line, approximately 3.3 stream miles. The primary
affected property owners are those adjacent to the creek between Jordan Road on
the west and Parker Road on the east (see Figure-I).

Cherry Creek in this area has a sinuosity of 1.50 based on a valley
distance of 2.2 miles. The streambed drops a total distance of 64 feet for a
slope of 19.5 feet per mile. There are presently no drop structures affecting
the bed profile.

There is one major drainageway, Happy Canyon Creek, that is tributary to
Cherry Creek in this reach. The remainder of the drainage enters Cherry Creek
by way of smaller gullies or sheet flow.

The Cherry Creek drains approximately 336 square mi 1es (Reference-i) at
the downstream 1 imit of the study (Arapahoe Road). At the upstream 1 imit
(Doug1 as County Line), the dra i nage area is approximately 309 square mil es.
The Happy Canyon Creek confluence is approximately half the way between the
ups tream and downstream study 1 imi ts and drai ns 17.24 square mil es
(Reference-2).

For the purpose of this study, Cherry Creek was divided into two reaches
(see Figure 2). Reach A begins at Arapahoe Road and extends upstream a
distance of approximately 6,800 feet along the creek bed. Reach B is the
remainder of the study reach (10,600 feet).

B. land Use

The present land use in the study area consists mainly of small farms with
the exception of a small area of industrial uses at Jordan Road and Arapahoe

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