Quincy Aerated Lagoon No 2 is an earth dam located in Grant County, Washington, built in 1987. It carries a Significant hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 920 ft long. 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 Quincy Aerated Lagoon No 2
Quincy Aerated Lagoon No 2 is a dam in Grant, Washington. The dam is owned by Quincy City (local government). It impounds the Columbia River-offstream near Quincy.
The dam stands 12 feet tall and stretches 920 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 10 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1987, the structure is 39 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | Washington |
| County | Grant |
| Nearest City | Quincy |
| River/Stream | Columbia River-offstream |
| Coordinates | 47.21548, -119.84609 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Length | 920 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 10 acre-ft |
| Max Storage | 10 acre-ft |
| Normal Storage | 6 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Quincy City |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | WA01596 |
| Federal ID | WA01596 |
| More Info | State Dam Safety Program |