Research Article
Jan 1971
Mossyrock Project—River Diversion and Care of Fish
Abstract
The preservation of the anadromous fish in the Cowlitz River was an essential feature of the Mossyrock Project. The final solution to this problem included the construction of a salmon and a trout hatchery downstream of the project. However, during construction of the dam and prior to completion of the hatcheries it was necessary to maintain the natural fish runs to spawning areas upstream of the damsite. This was accomplished by designing two gothic shaped unlined diversion tunnels such that they satisfied the requirements essential to the passage of fish as well as satisfied requirements for diversion of the Cowlitz River. The unlined tunnels were constructed with no difficulty and successfully passed three large floods. The fish runs were maintained during construction and are now being maintained with the aid of the two hatcheries downstream.
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Information
Published In
Journal of the Power Division
Volume 97 • Issue 1 • January 1971
Pages: 1 - 10
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Jan 1971
Published online: Feb 11, 2021
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Authors
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Earl J. Beck, F.ASCE
Vice Pres., Harza Engineering Co., Chicago, Ill.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.