Boulder Meadow is a dam located in Valley County, Idaho, built in 1968. It carries a Significant hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 35 ft35 ft tall and 550 ft long, taller than 80% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Boulder Meadow
The primary purpose of Boulder Meadow 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 Boulder Creek North Fork Payette River near Mccall.
The dam stands 35 feet tall and stretches 550 feet across, creates a reservoir covering 39 acres, has a storage capacity of 490 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1968, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/15/2020.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Idaho |
| County | Valley |
| Nearest City | Mccall |
| River/Stream | Boulder Creek North Fork Payette River |
| Coordinates | 44.86890, -115.97040 |
Physical Characteristics
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 550 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 490 acre-ft |
| Normal Storage | 490 acre-ft |
| Surface Area | 39 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 757 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 09/15/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00249 |
| Federal ID | ID00249 |
| More Info | State Dam Safety Program |