BOARD02326

• Board Meeting Date: 5/17/1946
• Description: Table of Contents and Minutes
• Board Meetings - Doc Type: Meeting

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The Board then heard the report of the special committee appointed to
confer with the Corps of Engineers and consult with affected local.interesta
respecting the outlet capacity of the authorized Cherry Creek Flood Control
project. The committee consisted of C. L. Patterson, Chief Engineer of the
Board, M.C. Hinderlider, State Engineer and a member of the Board, Glenn G.
Saunders, of the Water Board of the City and County of Denver, and J. M.
Dille, a member of the Board. The Board r~d previously authorized the
appointment of the committee and thereafter the members of the committee had
several meetings. After a final meeting with the Corps of Engineers, the
committee met and signed a repor~. Mr. Patterson was asked to present the
report to the Board for its approval. He presented the report as follows:

"Cherry Creek Flood Control Project

Report of Committee on Outlet Capacity
Designated to Act for the
Colorado Water Conservation Board

At its meeting of January 29, 1946, the Colorado Water Conservation
Board adopted a resolution urging the Congress of the United States to
make the necessary appropriations for the construction of the Cherry
Creek Flood Control Project.

The Board's endorsement of the project, though unconditional, was
with the understanding that, in connection with the design of outlet
works, revisions may be required for the protection of established
irrigation rights and existing diversions from the South Platte River
below Denver; and that a committee, consisting of J. M. Dille, M. C.
Hinderlider, Glenn G. Saunders, and C. L. Patterson, shall be appointed
to confer with the Army Engineers, to make a determination with respect
to the capacity of outlet works, and to take such measures as they may
deem proper wita respect to revisions in the design of outlet works.

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The Committee reviewed the design plans of the project in the
office.of James V. Johnston, Colonel, Corps of Engineers, District
Engineer,'Railway Exchange Building, Denver, Colorado, and on April
22, 1946 met with Colonel Johnston and Colonel W. W. Wanamaker, Deputy
Division Er~ineer, Omaha, Nebraska, and their advisers and assistants. At the
mreting of April 2~ .the members of the Board's Committee recommended tr~t the
outlet works be re-designed, to eliminate the wall in front of main outlet
conduits, to increase the outlet capacity under small storage conditions, and
to permit of controlling the discharges at times of flood. Thereupon
Colonel Wanamaker stated he would recommend to Major General Pick, Division
Engineer, Missouri River Division, that the outlet works be re-designed and
the reservoir be operated as outlined in the following six recommendations:

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1. Eliminate the conservation pool. This committee suggests the
language: "Eliminate all permanent or dead-storage as long as the.dam
is used solely for flood control purposes."

2. Modify the inlet so that discharges can begin at approximately
creek-bed level. Approved as written.

3. Increase the capacity of the outlet works to the equivalent of
four 90-inch conduits, which is approximately 5,000 cfs. with 5,000