Higginbotham Reservoir Dam
Higginbotham Reservoir Dam is an earth dam located in Grant County, Washington, built in 1947. It carries a Low hazard potential classification.
About Higginbotham Reservoir Dam
The primary purpose of Higginbotham Reservoir Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Leonagibson (private). It impounds the Tr-banks Lake.
The dam stands 13 feet tall and stretches 810 feet across, creates a reservoir covering 62 acres, has a maximum storage capacity of 145 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1947, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Washington |
| County | Grant |
| River/Stream | Tr-banks Lake |
| Coordinates | 47.80543, -119.13612 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Length | 810 ft |
| Year Completed | 1947 (79 years old) |
Storage & Hydraulics
| NID Storage | 145 acre-ft |
| Max Storage | 145 acre-ft |
| Normal Storage | 145 acre-ft |
| Surface Area | 62 acres |
| Drainage Area | 13 sq mi |
| Max Discharge | 227 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | LeonaGibson |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WA00070 |
| Federal ID | WA00070 |
| More Info | State Dam Safety Program |