Mchan
Mchan is a dam located in Camas County, Idaho, built in 1918. It carries a Low hazard potential classification and has a fair condition assessment.
About Mchan
The primary purpose of Mchan 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 Spring Creek Camas Creek.
The dam stands 21 feet tall and stretches 615 feet across, creates a reservoir covering 45 acres, has a storage capacity of 345 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1918, 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 10/29/2019.
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Location
| State | Idaho |
| County | Camas |
| River/Stream | Spring Creek Camas Creek |
| Coordinates | 43.23280, -114.65910 |
Physical Characteristics
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 615 ft |
| Year Completed | 1918 (108 years old) |
Storage & Hydraulics
| NID Storage | 345 acre-ft |
| Normal Storage | 345 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 157 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/29/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00027 |
| Federal ID | ID00027 |
| More Info | State Dam Safety Program |