Bellevue Detention Pond 165, also known as Northrup Lane Dam Dmp 165, is a crucial infrastructure owned by the local government in Bellevue, Washington.
Wind
Humidity
This detention pond plays a key role in flood risk reduction and debris control along the West Tributary Kelsey Creek. Constructed in 1983, this earth dam stands at a hydraulic height of 16 feet and a structural height of 12 feet, with a storage capacity of 73 acre-feet. The dam's primary purpose is to mitigate the risk of flooding in the area, making it a vital asset for the community.
Managed by the Washington Department of Ecology, Bellevue Detention Pond 165 is regulated and inspected to ensure its structural integrity and functionality. With a low hazard potential and a condition assessment of "Not Rated," the dam serves as a reliable barrier against potential water-related disasters. Despite not having a specific spillway type or outlet gates, the dam's design and construction using stone core and rock foundations demonstrate its effectiveness in managing water flow and reducing flood risks in the region.
Located in King County, Washington, Bellevue Detention Pond 165 is a testament to the proactive approach taken by local authorities to safeguard against water-related emergencies. With a drainage area of 0.68 square miles and a maximum discharge capacity of 31 cubic feet per second, this detention pond stands as a critical piece of infrastructure in the community's overall water resource and climate resilience strategy.
Year Completed |
1983 |
Dam Length |
80 |
River Or Stream |
West Tributary Kelsey Creek |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
16 |
Drainage Area |
0.68 |
Nid Storage |
73 |
Structural Height |
12 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
16 |
Mercer Creek Near Bellevue
|
12cfs |
Thornton Creek Near Seattle
|
41cfs |
Issaquah Creek Near Mouth Near Issaquah
|
384cfs |
Cedar River At Renton
|
6750cfs |
Duwamish River At Golf Course At Tukwila
|
6700cfs |
Snoqualmie River Near Carnation
|
13800cfs |
| Location | Reservations | Toilets |
|---|---|---|
Tolt MacDonald Park
|
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Tolt-MacDonald Park Campground
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Site 27
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Site 40
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Site 36
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Site 37
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