Dawson County Road Dam 4 is an earth dam located in Dawson County, Nebraska, built in 1971. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 1,000 ft long, taller than 74% 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 Dawson County Road Dam 4
Dawson County Road Dam 4 is a dam in Dawson, Nebraska. The dam is owned by Dawson County (local government). It impounds the Tr-wood River near Sumner.
The dam stands 32 feet tall and stretches 1,000 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 170 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1971, 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 12/05/2022.
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Location
| State | Nebraska |
| County | Dawson |
| Nearest City | Sumner |
| River/Stream | Tr-wood River |
| Coordinates | 41.00299, -99.72070 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 170 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Dawson County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 12/05/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE01406 |
| Federal ID | NE01406 |
| More Info | State Dam Safety Program |