Deer Park Aeration Lagoon
Deer Park Aeration Lagoon is a dam located in Spokane County, Washington, built in 2023. It carries a High hazard potential classification and has a fair condition assessment.
About Deer Park Aeration Lagoon
Deer Park Aeration Lagoon is a dam in Spokane, Washington. The dam is owned by Deer Park City (local government).
The dam stands 17 feet tall, and has a maximum storage capacity of 32 acre-feet. Completed in 2023, the structure is relatively new.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Washington dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Washington |
| County | Spokane |
| Coordinates | 47.95594, -117.48451 |
Physical Characteristics
| NID Height | 17 ft |
| Year Completed | 2023 (3 years old) |
Storage & Hydraulics
| NID Storage | 32 acre-ft |
| Max Storage | 32 acre-ft |
| Normal Storage | 24 acre-ft |
Ownership & Safety
| Purpose | Other |
| Owner | Deer Park City |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA02076 |
| Federal ID | WA02076 |
| More Info | State Dam Safety Program |