Nash
Nash is a dam located in Franklin County, Idaho, built in 1952. It carries a Low hazard potential classification and has a fair condition assessment.
About Nash
The primary purpose of Nash 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 Fivemile Creek Bear River.
The dam stands 21 feet tall and stretches 500 feet across, creates a reservoir covering 14 acres, has a storage capacity of 93 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1952, 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 07/19/2017.
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Location
| State | Idaho |
| County | Franklin |
| River/Stream | Fivemile Creek Bear River |
| Coordinates | 42.08972, -111.98685 |
Physical Characteristics
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 500 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 93 acre-ft |
| Normal Storage | 93 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 164 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/19/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00072 |
| Federal ID | ID00072 |
| More Info | State Dam Safety Program |