LAKE TAPPS NEAR SUMNER

RESERVOIR LEVELS
February 7, 2025
531 ft 47.24, -122.20


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Tapps Lake Dike No 1, located in Pierce County, Washington, is a crucial structure designed for recreation purposes. Built in 1911, this earth dam stands at a hydraulic height of 18 feet and a structural height of 9 feet, with a length spanning 280 feet. The dam holds a maximum storage capacity of 22,000 acre-feet and covers a surface area of 2570 acres, making it a significant water resource in the region.

Managed by the Washington Department of Ecology, Tapps Lake Dike No 1 is subject to state regulations, inspections, and enforcement to ensure its safety and functionality. With a satisfactory condition assessment as of February 2018, the dam poses a high hazard potential and requires regular inspections every 5 years. In case of emergencies, the dam does not have an Emergency Action Plan (EAP) prepared, highlighting the importance of proactive risk management measures for this critical infrastructure.

As part of the diversion from the White River, Tapps Lake Dike No 1 plays a vital role in water resource management in the area, supplying water for various recreational activities. With its historical significance and ongoing regulatory oversight, this dam serves as a key element in the regional water infrastructure, highlighting the intersection of water resources and climate resilience in the Pacific Northwest.

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0%
Percent of Normal 100%
Minimum 499.25 ft
2014-11-21
Maximum 542.54 ft
2022-05-07
Average 533 ft
Hydraulic_Height 18
Drainage_Area 9.69
Year_Completed 1911
Nid_Storage 22000
River_Or_Stream Diversion from White River
Structural_Height 9
Primary_Dam_Type Earth
Foundations Soil
Surface_Area 2570
Hazard_Potential High
Dam_Length 280
Nid_Height 18
Reservoir Levels
       

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