Sponheinmer Dam is an earth dam located in Lancaster County, Nebraska, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 844 ft long. 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 Sponheinmer Dam
The primary purpose of Sponheinmer Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Jerry D Jr Cornett Rev Trust (private). It impounds the Tr-salt Creek near Greenwood.
The dam stands 19 feet tall and stretches 844 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1968, 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 03/18/2020.
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Location
| State | Nebraska |
| County | Lancaster |
| Nearest City | Greenwood |
| River/Stream | Tr-salt Creek |
| Coordinates | 40.96927, -96.57634 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 844 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 14 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Jerry D Jr Cornett Rev Trust |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 03/18/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00551 |
| Federal ID | NE00551 |
| More Info | State Dam Safety Program |