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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2. The crossing from Bend No.3 to No.4 has remained essentially
unchanged. The river has widened slightly here.

3. Bend No.4 has migrated laterally (west) approximately 350 feet.

4. The concave (outs i de) banks of Bends No.5, 6, and 7 were heavily
treed in 1937. The first did not move appreciably. The latter
eroded approximately 50 feet on the concave bank.

5. The river made a chute cutoff at Bend No.8 sometime between August,
1971 and July, 1978. Prior to 1971, the bend had been migrating
downst ream.

6. The concave bank of Bend No. g moved 1 aterally (west) approximately
150 feet.

7. The river at Bends No. 10 and 11 decreased in width. Both the
concave and convex banks moved towards the centerline

8. Bend No. 12 did not migrate appreciably as it is cutting into the
high terrace composed of tough material.

9. Bend No. 13 mi9rated laterally approximately 100 feet, all or most of
that prior to the construction of Arapahoe Road and its bridge.

10. There are 2 linear anomo1ies on the bankline on the 1983 photographs.
These are downstream from Bends No. 7 and 9 where the banks are
parallel to the property lines.

Aerial photographs taken on the 15th of October, 1964 were compared to those
taken on the 10th of August, 1971 to assess the impact of the June, 1965 flood
on bend migration. In this period of time, the following occurred.

a. Bend No.1 moved downstream and widened.

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