Design of Mossyrock Arch Dam

by Roman P. Wengler, (M.ASCE), Head; Appl. Mech. Div., Harza Engrg. Co., Chicago, IL,
William Y. J. Shieh, Head; Struct. Dept., Harza Engrg. Co., Chicago, IL,


Serial Information: Journal of the Power Division, 1971, Vol. 97, Issue 1, Pg. 25-38


Document Type: Journal Paper

Abstract: Development of the layout and history of design of the 606-ft high Mossyrock arch dam is presented. While a brief description of the general project layout and foundation conditions is given, the main emphasis is on the arch dam. The history of the design is traced from license application and planning report to final construction design. Selection of the final location from among several investigated was based on economics, foundation conditions, and relative advantages and disadvantages this location had on other features of the project. Results of final design analysis based on the trial-load method and model tests showed good agreement and verified that design criteria were met. Construction started in 1965 and the reservoir was completely filled for the first time in June, 1969.

Subject Headings: Arch dams | History | Dam foundations | Construction management | Model tests | Licensure and certification | Economic factors

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