Rosenthal Dam
Rosenthal Dam is an earth dam located in Johnson County, Nebraska, built in 1954. It carries a Low hazard potential classification and has a poor condition assessment.
About Rosenthal Dam
Rosenthal Dam is a dam in Johnson, Nebraska. The dam is owned by Johnson County (local government). It impounds the Jones Creek near Talmage.
The dam stands 28 feet tall and stretches 395 feet across, has a maximum storage capacity of 31 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1954, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/26/2022.
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Location
| State | Nebraska |
| County | Johnson |
| Nearest City | Talmage |
| River/Stream | Jones Creek |
| Coordinates | 40.49411, -96.15513 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 395 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 31 acre-ft |
| Max Storage | 31 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 582 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Johnson County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 04/26/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE03009 |
| Federal ID | NE03009 |
| More Info | State Dam Safety Program |