Bellevue Detention Pond 179 North is an earth dam located in King County, Washington, built in 1977. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 50 ft long, taller than 55% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Bellevue Detention Pond 179 North
The primary purpose of Bellevue Detention Pond 179 North is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Bellevue City Utilities Dept (local government). It impounds the Sears Creek near Bellevue.
The dam stands 26 feet tall and stretches 50 feet across, creates a reservoir covering 1 acres, and has a maximum storage capacity of 17 acre-feet. Completed in 1977, the structure is 49 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Washington |
| County | King |
| Nearest City | Bellevue |
| River/Stream | Sears Creek |
| Coordinates | 47.62593, -122.14639 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Length | 50 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 17 acre-ft |
| Max Storage | 17 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 1 acres |
| Max Discharge | 480 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Bellevue City Utilities Dept |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA01398 |
| Federal ID | WA01398 |
| More Info | State Dam Safety Program |