Monroe
Monroe is a dam located in Washington County, Idaho, built in 1916. It carries a Low hazard potential classification and has a fair condition assessment.
About Monroe
The primary purpose of Monroe is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is private-owned. It impounds the Jenkins Creek Snake River.
The dam stands 36 feet tall and stretches 285 feet across, creates a reservoir covering 20 acres, has a storage capacity of 272 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1916, the structure is over a century 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/17/2018.
At 36 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Idaho |
| County | Washington |
| River/Stream | Jenkins Creek Snake River |
| Coordinates | 44.40360, -116.98640 |
Physical Characteristics
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 285 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 272 acre-ft |
| Normal Storage | 272 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 170 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/17/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00214 |
| Federal ID | ID00214 |
| More Info | State Dam Safety Program |