Othello Primary Treatment Pond 1a is an earth dam located in Adams County, Washington, built in 1982. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 2,250 ft long, taller than 59% 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 Othello Primary Treatment Pond 1a
Othello Primary Treatment Pond 1a is a dam in Adams, Washington. The dam is owned by Othello City (local government). It impounds the Tr-crab Creek-offstream near Corfu.
The dam stands 27 feet tall and stretches 2,250 feet across, creates a reservoir covering 115 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1982, the structure is 44 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 | Adams |
| Nearest City | Corfu |
| River/Stream | Tr-crab Creek-offstream |
| Coordinates | 46.82608, -119.22481 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Length | 2,250 ft |
| Year Completed | 1982 (44 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 115 acre-ft |
| Surface Area | 115 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 6 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Othello City |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00470 |
| Federal ID | WA00470 |
| More Info | State Dam Safety Program |