Guenther Wortmann Road Dam is an earth dam located in Knox County, Nebraska, built in 1974. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 1,120 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 Guenther Wortmann Road Dam
Guenther Wortmann Road Dam is a dam in Knox, Nebraska. The dam is owned by Knox County Highway Superintendent (local government). It impounds the Tr-beaver Creek near Yankton Sd.
The dam stands 19 feet tall and stretches 1,120 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 222 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1974, 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 04/12/2022.
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Location
| State | Nebraska |
| County | Knox |
| Nearest City | Yankton Sd |
| River/Stream | Tr-beaver Creek |
| Coordinates | 42.77096, -97.52524 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 1,120 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 222 acre-ft |
| Max Storage | 222 acre-ft |
| Normal Storage | 3 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,295 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Knox County Highway Superintendent |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/12/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02239 |
| Federal ID | NE02239 |
| More Info | State Dam Safety Program |