Tukwila South Project South Pond
Tukwila South Project South Pond is an earth dam located in King County, Washington, built in 2011. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Tukwila South Project South Pond
The primary purpose of Tukwila South Project South Pond 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 Segale Properties Llc (private). It impounds the Offstream.
The dam stands 21 feet tall and stretches 1,725 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 164 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2011, the structure is relatively new.
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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized.
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Location
| State | Washington |
| County | King |
| River/Stream | Offstream |
| Coordinates | 47.42063, -122.26906 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Length | 1,725 ft |
| Year Completed | 2011 (15 years old) |
Storage & Hydraulics
| NID Storage | 164 acre-ft |
| Max Storage | 164 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 119 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Segale Properties LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00727 |
| Federal ID | WA00727 |
| More Info | State Dam Safety Program |