Silver Firs Detention Pond No 3, located in Woodinville, Washington, is a private earth dam designed by W&H Pacific Engineers in 1999 to reduce flood risks along the Little Bear Creek.
Wind
Humidity
With a structural height of 12 feet and a hydraulic height of 14 feet, this detention pond has a capacity to store 45 acre-feet of water and covers a surface area of 2 acres. The dam serves the primary purpose of flood risk reduction and is regulated by the Washington Dept of Ecology.
Despite its high hazard potential, Silver Firs Detention Pond No 3 maintains a satisfactory condition assessment as of September 2020. The dam's last inspection occurred in September 2020, with a scheduled inspection frequency of every 5 years. In case of emergencies, an emergency action plan (EAP) may be in place, although details on its preparedness and adherence to guidelines are not provided in the data. Overall, this detention pond plays a crucial role in protecting the surrounding area from potential flooding events and demonstrates a commitment to water resource management and climate resilience in Snohomish County, Washington.
Year Completed |
1999 |
Dam Length |
950 |
River Or Stream |
Little Bear Creek |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
14 |
Drainage Area |
0.63 |
Nid Storage |
45 |
Structural Height |
12 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
14 |
Snohomish River Near Monroe
|
28500cfs |
Pilchuck River Near Snohomish
|
1020cfs |
Thornton Creek Near Seattle
|
41cfs |
Mission Creek Near Tulalip
|
7cfs |
Tulalip Creek Near Tulalip
|
12cfs |
Sultan River Below Powerplant Near Sultan
|
3580cfs |