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Review Plan Using the NWD Model Review Plan for Continuing Authorities Program Section 14, 107, 111, 204, 206, 208, 1135 and Projects Directed by Guidance to Use CAP Procedures: Sheridan, Wyoming, Section 1135 Project

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The existing Sheridan, Wyoming flood control project, authorized by the Flood Control Act of 1950 P.L. 516, consists of levees, channel alterations, drainage structures, concrete chutes and drop structures, and steel sheet pile and bin walls which were designed to protect the city from flood discharges in Goose and Little Goose Creeks. Construction of the Sheridan Project was completed in two stages. Stage 1 involved construction of levees, channel alterations, drainage structures, a concrete chute, a concrete drop structure, and sheet piling and was completed in 1963. Stage 2, begun in June 1965, and of construction and channel straightening on Little Goose Creek upstream. Construction was completed in 1966. According to the Operations and Maintenance Manual for the project there was a proposed Stage 3 involving construction upstream on Big Goose Creek that was delayed in 1967 at the request of the city for financial reasons. The city of Sheridan submitted a letter requesting to cost-share a feasibility study to the Corps in April 2013. Specific interests of the sponsor in this project include increasing and restoring channel habitat, reestablishing some connectivity with upstream and downstream reaches of the creeks, and restoring natural function back to the channel. Section 1135 of the Water Resources Development Act of 1986, Public Law 99-662, provides the authority to modify existing Corps projects to restore the environment and construct new projects to restore areas degraded by Corps projects with the objective of restoring degraded ecosystem structure, function, and dynamic processes to a less degraded, more natural condition considering the ecosystem s natural integrity, productivity, stability and biological diversity. This Review Plan defines the scope and level of peer review for the Sheridan, Wyoming, Section 1135 project.

Subject Categories:

  • Ecology
  • Hydrology, Limnology and Potamology

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