Engdahl #4
Engdahl #4 is an earth dam located in Garfield County, Montana, built in 1950. It carries a Low hazard potential classification.
About Engdahl #4
The primary purpose of Engdahl #4 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Engdahl Ranch (private). It impounds the Tr-hell Creek.
The dam stands 25 feet tall and stretches 175 feet across, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Montana |
| County | Garfield |
| Nearest City | None |
| River/Stream | Tr-hell Creek |
| Coordinates | 47.50980, -107.12490 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 175 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 31 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 500 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | ENGDAHL RANCH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02125 |
| Federal ID | MT02125 |
| More Info | State Dam Safety Program |