Mmk Dam 1 is an earth dam located in Holt County, Nebraska, built in 1977. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 31 ft31 ft tall and 174 ft long, taller than 72% of U.S. dams with a recorded height. 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 Mmk Dam 1
Mmk Dam 1 is a dam in Holt, Nebraska. The dam is owned by Bob J Lockmon (private). It impounds the Tr-beaver Creek near Niobrara.
The dam stands 31 feet tall and stretches 174 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 26 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/21/2014. That was over 12 years ago.
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Location
| State | Nebraska |
| County | Holt |
| Nearest City | Niobrara |
| River/Stream | Tr-beaver Creek |
| Coordinates | 42.75144, -99.14144 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 30 ft |
| Dam Length | 174 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 26 acre-ft |
| Max Storage | 26 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 32 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Bob J Lockmon |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/21/2014 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01685 |
| Federal ID | NE01685 |
| More Info | State Dam Safety Program |