Hanson Lake Dam
Hanson Lake Dam is an earth dam located in Sarpy County, Nebraska, built in 2002. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Hanson Lake Dam
Hanson Lake Dam is a dam in Sarpy, Nebraska. The dam is owned by Papio Missouri River Natural Resources District (local government). It impounds the Tr-platte River near Hanson Lakes.
The dam stands 43 feet tall and stretches 178 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2002, the structure is relatively new.
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 04/09/2024.
At 43 feet, this dam is taller than 89% of dams nationwide.
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 | Sarpy |
| Nearest City | Hanson Lakes |
| River/Stream | Tr-platte River |
| Coordinates | 41.07555, -95.94221 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 38 ft |
| Dam Length | 178 ft |
| Year Completed | 2002 (24 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 18 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,717 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Papio Missouri River Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/09/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NE02653 |
| Federal ID | NE02653 |
| More Info | State Dam Safety Program |