Deer Park Ww Storage Lagoons 1 & 2
Deer Park Ww Storage Lagoons 1 & 2 is an earth dam located in Spokane County, Washington, built in 1985. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Deer Park Ww Storage Lagoons 1 & 2
Deer Park Ww Storage Lagoons 1 & 2 is a dam in Spokane, Washington. The dam is owned by Deer Park City (local government). It impounds the Tr-dragoon Creek-offstream near Within Deer Park City Limits.
The dam stands 23 feet tall and stretches 4,500 feet across, creates a reservoir covering 176 acres, has a maximum storage capacity of 253 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 years old.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/06/2024.
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 |
| Nearest City | Within Deer Park City Limits |
| River/Stream | Tr-dragoon Creek-offstream |
| Coordinates | 47.96235, -117.46333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Length | 4,500 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 253 acre-ft |
| Max Storage | 253 acre-ft |
| Normal Storage | 236 acre-ft |
| Surface Area | 176 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Deer Park City |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/06/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA01468 |
| Federal ID | WA01468 |
| More Info | State Dam Safety Program |