Big Cottonwood Allot 2 Dam
Big Cottonwood Allot 2 Dam is an earth dam located in Dawes County, Nebraska, built in 1936. It carries a Low hazard potential classification and has a poor condition assessment.
About Big Cottonwood Allot 2 Dam
The primary purpose of Big Cottonwood Allot 2 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 United Ss Forest Service (federal). It impounds the Tr-big Cottonwood Creek near Interior Sd.
The dam stands 12 feet tall and stretches 491 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1936, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 12/23/2019.
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Location
| State | Nebraska |
| County | Dawes |
| Nearest City | Interior Sd |
| River/Stream | Tr-big Cottonwood Creek |
| Coordinates | 42.81684, -103.45531 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 491 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 5,000 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | United Ss Forest Service |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 12/23/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01393 |
| Federal ID | NE01393 |
| More Info | State Dam Safety Program |