Johnson Dam 7910 is an earth dam located in Furnas County, Nebraska, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 11 ft11 ft tall and 240 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 Johnson Dam 7910
Johnson Dam 7910 is a dam in Furnas, Nebraska. The dam is owned by Gary L & Carolyn J Potter (private). It impounds the Tr-beaver Creek near Wilsonville.
The dam stands 11 feet tall and stretches 240 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 89 acre-feet, and collects water from a drainage area of 3 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 05/24/2023.
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Location
| State | Nebraska |
| County | Furnas |
| Nearest City | Wilsonville |
| River/Stream | Tr-beaver Creek |
| Coordinates | 40.07470, -100.11334 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 240 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 89 acre-ft |
| Max Storage | 89 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 3 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Gary L & Carolyn J Potter |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/24/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE07910 |
| Federal ID | NE07910 |
| More Info | State Dam Safety Program |