Klahanie Stormwater Detention Dam No 13, located in Issaquah, Washington, is a vital structure owned by the local government to manage flood risk reduction in the area.
Wind
Humidity
Completed in 1989, this earth dam stands at a hydraulic height of 10 feet and a structural height of 8 feet, with a length of 860 feet and a storage capacity of 56 acre-feet. Situated along the Tr-Issaquah Creek, this dam plays a crucial role in protecting the surrounding community from potential flooding events.
With a fair condition assessment and a high hazard potential, Klahanie Stormwater Detention Dam No 13 is regularly inspected by the Washington Dept of Ecology to ensure its effectiveness in flood risk reduction. The dam covers a drainage area of 0.16 square miles and has a normal storage capacity of 35 acre-feet, serving as a key infrastructure for managing stormwater in the region. Despite its age, the dam continues to play a critical role in safeguarding the local environment and residents from the impacts of extreme weather events.
As part of the flood risk reduction strategy in King County, Washington, Klahanie Stormwater Detention Dam No 13 is a significant component of the overall water resource management plan. With a focus on maintaining public safety and protecting against potential inundation, this dam stands as a testament to the proactive measures taken by local authorities to mitigate the effects of climate change on the surrounding community.
Year Completed |
1989 |
Dam Length |
860 |
River Or Stream |
Tr-Issaquah Creek |
Primary Dam Type |
Earth |
Surface Area |
11.1 |
Hydraulic Height |
10 |
Drainage Area |
0.16 |
Nid Storage |
56 |
Structural Height |
8 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
10 |
Issaquah Creek Near Mouth Near Issaquah
|
300cfs |
Raging River Near Fall City
|
175cfs |
Issaquah Creek Near Hobart
|
136cfs |
Snoqualmie River Near Snoqualmie
|
4380cfs |
Snoqualmie River Near Carnation
|
9660cfs |
Mercer Creek Near Bellevue
|
12cfs |
| Location | Reservations | Toilets |
|---|---|---|
Tolt-MacDonald Park Campground
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Tolt MacDonald Park
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Site 27
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Site 36
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Site 37
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Site 40
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