Payette Lake Upper
Payette Lake Upper is a dam located in Valley County, Idaho, built in 1953. It carries a Significant hazard potential classification and has a fair condition assessment.
About Payette Lake Upper
The primary purpose of Payette Lake Upper 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 North Fork Payette River Payette River near Mccall.
The dam stands 15 feet tall and stretches 70 feet across, creates a reservoir covering 315 acres, has a storage capacity of 2,400 acre-feet, and collects water from a drainage area of 42 square miles. Completed in 1953, the structure is well into its service life at over 50 years old.
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 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 07/16/2018.
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Location
| State | Idaho |
| County | Valley |
| Nearest City | Mccall |
| River/Stream | North Fork Payette River Payette River |
| Coordinates | 45.11100, -116.02660 |
Physical Characteristics
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 70 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 2,400 acre-ft |
| Normal Storage | 2,400 acre-ft |
| Surface Area | 315 acres |
| Drainage Area | 42 sq mi |
| Max Discharge | 1,070 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/16/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00114 |
| Federal ID | ID00114 |
| More Info | State Dam Safety Program |