Hollenbeak
Hollenbeak is a dam located in Valley County, Idaho, built in 1972. It carries a Low hazard potential classification and has a fair condition assessment.
About Hollenbeak
Hollenbeak is a dam in Valley, Idaho. The dam is private-owned. It impounds the Cold Creek Boulder Creek.
The dam stands 29 feet tall and stretches 420 feet across, creates a reservoir covering 16 acres, has a storage capacity of 159 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1972, the structure is well into its service life at over 50 years 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 06/17/2019.
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Location
| State | Idaho |
| County | Valley |
| River/Stream | Cold Creek Boulder Creek |
| Coordinates | 44.83700, -116.03430 |
Physical Characteristics
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 420 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 159 acre-ft |
| Normal Storage | 159 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 550 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/17/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00129 |
| Federal ID | ID00129 |
| More Info | State Dam Safety Program |