4th Avenue Storm Detention Dam
4th Avenue Storm Detention Dam is an earth dam located in Buffalo County, Nebraska, built in 1989. It carries a High hazard potential classification and has a satisfactory condition assessment.
About 4th Avenue Storm Detention Dam
The primary purpose of 4th Avenue Storm Detention Dam 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 Johnson Imperial Home Company (private). It impounds the Tr-wood River near Kearney.
The dam stands 25 feet tall and stretches 535 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 92 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1989, the structure is 37 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/27/2024.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Nebraska dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Nebraska |
| County | Buffalo |
| Nearest City | Kearney |
| River/Stream | Tr-wood River |
| Coordinates | 40.72001, -99.08704 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 19 ft |
| Dam Length | 535 ft |
| Year Completed | 1989 (37 years old) |
Storage & Hydraulics
| NID Storage | 92 acre-ft |
| Max Storage | 92 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 549 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Johnson Imperial Home Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/27/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NE02332 |
| Federal ID | NE02332 |
| More Info | State Dam Safety Program |