Swedeburg B-3 is an earth dam located in Saunders County, Nebraska, built in 1954. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 33 ft33 ft tall and 1,100 ft long, taller than 76% 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 Swedeburg B-3
The primary purpose of Swedeburg B-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 Lower Platte North Natural Resources District (local government). It impounds the Tr-wahoo Creek near Ithaca.
The dam stands 33 feet tall and stretches 1,100 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 340 acre-feet, and collects water from a drainage area of 2 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/10/2023.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Nebraska |
| County | Saunders |
| Nearest City | Ithaca |
| River/Stream | Tr-wahoo Creek |
| Coordinates | 41.17357, -96.61402 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 26 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 340 acre-ft |
| Max Storage | 340 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,250 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lower Platte North Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/10/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE00045 |
| Federal ID | NE00045 |
| More Info | State Dam Safety Program |