Little Payette Lake Dike
Little Payette Lake Dike is an earth dam located in Valley County, Idaho, built in 1926. It carries a Significant hazard potential classification and has a poor condition assessment.
About Little Payette Lake Dike
The primary purpose of Little Payette Lake Dike 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 Lake Fork North Fork Payette River near Mccall.
The dam stands 11 feet tall and stretches 825 feet across, creates a reservoir covering 1,450 acres, has a storage capacity of 3,550 acre-feet, and collects water from a drainage area of 64 square miles. Completed in 1926, the structure is well-established, with more than 75 years of service.
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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 09/17/2020.
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Location
| State | Idaho |
| County | Valley |
| Nearest City | Mccall |
| River/Stream | Lake Fork North Fork Payette River |
| Coordinates | 44.90420, -116.01750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 825 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 3,550 acre-ft |
| Normal Storage | 3,550 acre-ft |
| Surface Area | 1,450 acres |
| Drainage Area | 64 sq mi |
| Max Discharge | 3,000 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 09/17/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ID00527 |
| Federal ID | ID00243S001 |
| More Info | State Dam Safety Program |