Dwinell Dam
Dwinell Dam is an earth dam located in Frontier County, Nebraska, built in 1960. It carries a Low hazard potential classification.
About Dwinell Dam
The primary purpose of Dwinell Dam 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 Monter Living Trust (private). It impounds the Tr-muddy Creek near Arapahoe.
The dam stands 20 feet tall and stretches 187 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1960, 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. The most recent inspection on record was 09/30/2014. That was over 11 years ago.
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Location
| State | Nebraska |
| County | Frontier |
| Nearest City | Arapahoe |
| River/Stream | Tr-muddy Creek |
| Coordinates | 40.46209, -100.01057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 187 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 655 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Monter Living Trust |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 09/30/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01448 |
| Federal ID | NE01448 |
| More Info | State Dam Safety Program |