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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | First Periodic Dam Safety Inspection Report: Lake Tapps Dikes 1 through 15, Pierce County, Washington (Historical) |
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| VIEW NOW | This publication is historical. It is unavailable on our website. To request a copy, please use the contact listed below. | ||||
| Author(s) | Doug Johnson, P.E., Jerald LaVassar, P.E. | ||||
| Description | This report contains the results of a site inspection performed on August 8, 2007, and a subsequent safety evaluation of the Lake Tapps Dams performed by the Dam Safety Office (DSO) of the Department of Ecology. Originally, Lake Tapps served as a reservoir for the hydroelectric operation called the White River Project (Project). This Project, however, ceased to operate as a generating facility on January 15, 2004. At that time, jurisdiction over dam safety issues transferred from the Federal Energy Regulatory Commission to the Washington State Department of Ecology, Dam Safety Office. Lake Tapps is located in Pierce County, about 3 miles northeast of the City of Sumner. Lake Tapps was formed in 1910 and 1911 by the construction of 15 earth embankments at the site of several natural lakes. The reservoir is presently ringed by residential development and receives heavy water-oriented recreational use. The embankments around Lake Tapps vary in height from about 6 feet to 45 feet and were built in order to increase the water surface elevation of the natural lakes by approximately 35 feet. Lake Tapps has a surface area of approximately 2,700 acres and an active storage capacity of 46,700 acre-feet its normal maximum pool elevation of 543 feet. The active storage is based on the usable storage volume between elevation 515 feet and 543 feet. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Water Resources Program - Dam Safety at 360-407-6872 | ||||
| Keywords | Inspection report, dam safety |
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