Headquarters Landfill Leachate Pond
Headquarters Landfill Leachate Pond is an earth dam located in Cowlitz County, Washington, built in 1993. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Headquarters Landfill Leachate Pond
Headquarters Landfill Leachate Pond is a dam in Cowlitz, Washington. The dam is owned by Cowlitz County Public Works (local government). It impounds the Sucker Creek To Silver Lake.
The dam stands 19 feet tall and stretches 743 feet across, creates a reservoir covering 2,300 acres, has a maximum storage capacity of 26 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1993, the structure is 33 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. 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 08/29/2024.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Washington |
| County | Cowlitz |
| River/Stream | Sucker Creek To Silver Lake |
| Coordinates | 46.25225, -122.77603 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Length | 743 ft |
| Year Completed | 1993 (33 years old) |
Storage & Hydraulics
| NID Storage | 26 acre-ft |
| Max Storage | 26 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 2,300 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Cowlitz County Public Works |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/29/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA02051 |
| Federal ID | WA02051 |
| More Info | State Dam Safety Program |