Legacy Dam is an earth dam located in Douglas County, Nebraska, built in 1968. It carries a High hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 45 ft45 ft tall and 767 ft long, taller than 90% 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 Legacy Dam
Legacy Dam is a dam in Douglas, Nebraska. The dam is owned by Legacy Homeowners Association (private). It impounds the Tr-box Elder Creek near Omaha.
The dam stands 45 feet tall and stretches 767 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 121 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1968, the structure is well into its service life at over 50 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 04/11/2025.
At 45 feet, this dam is taller than 90% 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 | Douglas |
| Nearest City | Omaha |
| River/Stream | Tr-box Elder Creek |
| Coordinates | 41.22688, -96.17947 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 37 ft |
| Dam Length | 767 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 121 acre-ft |
| Max Storage | 121 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 9 cfs |
Ownership & Safety
| Purpose | Other |
| Owner | Legacy Homeowners Association |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/11/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NE00032 |
| Federal ID | NE00032 |
| More Info | State Dam Safety Program |