Coweeman Gravel Pit No. 2 Dam
Coweeman Gravel Pit No. 2 Dam is an earth dam located in Cowlitz County, Washington, built in 1962. It carries a Low hazard potential classification.
About Coweeman Gravel Pit No. 2 Dam
The primary purpose of Coweeman Gravel Pit No. 2 Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Derosier Trucking (private). It impounds the Tr-coweman River near Kelso.
The dam stands 12 feet tall and stretches 1,000 feet across, creates a reservoir covering 165 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1962, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 01/03/2000. That was over 26 years ago.
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Location
| State | Washington |
| County | Cowlitz |
| Nearest City | Kelso |
| River/Stream | Tr-coweman River |
| Coordinates | 46.13405, -122.85104 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 165 acre-ft |
| Surface Area | 165 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | DeRosier Trucking |
| Owner Type | Private |
| Hazard Classification | Low |
| Last Inspection | 01/03/2000 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00305 |
| Federal ID | WA00305 |
| More Info | State Dam Safety Program |