Heil No 1 is a dam located in Twin Falls County, Idaho, built in 1974. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 24 ft24 ft tall and 1,380 ft long. 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 Heil No 1
The primary purpose of Heil No 1 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 Worley Draw Devil Creek near Remote.
The dam stands 24 feet tall and stretches 1,380 feet across, creates a reservoir covering 58 acres, has a storage capacity of 480 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1974, 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 08/01/2018.
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Location
| State | Idaho |
| County | Twin Falls |
| Nearest City | Remote |
| River/Stream | Worley Draw Devil Creek |
| Coordinates | 42.20750, -115.00400 |
Physical Characteristics
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 1,380 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 480 acre-ft |
| Normal Storage | 480 acre-ft |
| Surface Area | 58 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 52 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/01/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ID00159 |
| Federal ID | ID00159 |
| More Info | State Dam Safety Program |