Chehalis Regional Water Reclamation Pond is an earth dam located in Lewis County, Washington, built in 2005. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 17 ft17 ft tall. 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 Chehalis Regional Water Reclamation Pond
Chehalis Regional Water Reclamation Pond is a dam in Lewis, Washington. The dam is owned by Chehalis City (local government). It impounds the Chehalis River - Offstream.
The dam stands 17 feet tall, creates a reservoir covering 0 acres, and has a maximum storage capacity of 11 acre-feet. Completed in 2005, the structure is relatively new.
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 05/17/2017.
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Location
| State | Washington |
| County | Lewis |
| River/Stream | Chehalis River - Offstream |
| Coordinates | 46.66641, -122.98209 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Year Completed | 2005 (21 years old) |
Storage & Hydraulics
| NID Storage | 11 acre-ft |
| Max Storage | 11 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 0 acres |
Ownership & Safety
| Purpose | Other |
| Owner | Chehalis City |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/17/2017 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WA01899 |
| Federal ID | WA01899 |
| More Info | State Dam Safety Program |