Johnson Detention Dam 3
Johnson Detention Dam 3 is an earth dam located in Furnas County, Nebraska, built in 1958. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Johnson Detention Dam 3
The primary purpose of Johnson Detention Dam 3 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Paul L & Jacqeline R Johnson Living Trust (private). It impounds the Tr-republican River near Holbrook.
The dam stands 36 feet tall and stretches 712 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 996 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1958, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/13/2021.
At 36 feet, this dam is taller than 83% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Nebraska |
| County | Furnas |
| Nearest City | Holbrook |
| River/Stream | Tr-republican River |
| Coordinates | 40.24171, -100.09541 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 712 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 996 acre-ft |
| Max Storage | 996 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 1,488 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Paul L & Jacqeline R Johnson Living Trust |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/13/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00482 |
| Federal ID | NE00482 |
| More Info | State Dam Safety Program |