Mynard Road Dam 36a-12-12 is an earth dam located in Cass County, Nebraska, built in 1994. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 42 ft42 ft tall and 1,050 ft long, taller than 88% 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 Mynard Road Dam 36a-12-12
The primary purpose of Mynard Road Dam 36a-12-12 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Lower Platte South Natural Resources District (local government). It impounds the Tr-eight Mile Creek near Plattsmouth.
The dam stands 42 feet tall and stretches 1,050 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 148 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/23/2022.
At 42 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Nebraska |
| County | Cass |
| Nearest City | Plattsmouth |
| River/Stream | Tr-eight Mile Creek |
| Coordinates | 40.97301, -96.00893 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 37 ft |
| Dam Length | 1,050 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 148 acre-ft |
| Max Storage | 148 acre-ft |
| Normal Storage | 27 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 81 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Platte South Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/23/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02403 |
| Federal ID | NE02403 |
| More Info | State Dam Safety Program |