Research Article
Dec 1967
Improving River Aeration at an Underflow Dam
Authors: Russell H. Susag, M.ASCE, Maurice L. Robins, and George J. Schroepfer, F.ASCEAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 93, Issue 6
Abstract
The aeration occurring in flow through dams can be a significant contribution to the dissolved oxygen resources of a river receiving the oxygen consuming organic material of waste waters. Changes in physical or operational characteristics of a dam can affect the rate of aeration. The aeration rate at Lock and Dam No. 2 on the Mississippi River near Hastings, Minnesota, had been reduced by a factor of three by an increase in tailwater elevation resulting from the construction of another dam downstream. Conversion of the underflow gate structure to an overflow condition by the installation of bulkheads and increasing downstream turbulence almost restored the lost aeration capacity. This study demonstrates that aeration at dams can be improved through changes in operation and indicates that the contribution of dams to river-dissolved oxygen resources should be included in the consideration of dam design and operation.
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Information
Published In
Journal of the Sanitary Engineering Division
Volume 93 • Issue 6 • December 1967
Pages: 133 - 144
Copyright
© 1967 American Society of Civil Engineers.
History
Published in print: Dec 1967
Published online: Feb 12, 2021
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Authors
Affiliations
Russell H. Susag, M.ASCE
Asst. Prof. of San. Engrg., Dept. of Civ. Engrg., Univ. of Minnesota, Minneapolis, Minn.
Maurice L. Robins
Chf. Chemist and San. Engr., Minnepolis-Saint Paul san. Dist., St. Paul, Minn.
George J. Schroepfer, F.ASCE
Chf. Chemist and San. Engr., Mimmeapolis-Saint Paul San. Dist., St. Paul, Minn.
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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.