Sid 439 Dam is an earth dam located in Sarpy County, Nebraska, built in 1960. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 33 ft33 ft tall and 360 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 Sid 439 Dam
The primary purpose of Sid 439 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 Sanitary Improvement District 439 (local government). It impounds the Tr-papillion Creek near Bellevue.
The dam stands 33 feet tall and stretches 360 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 34 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1960, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/08/2020.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Nebraska |
| County | Sarpy |
| Nearest City | Bellevue |
| River/Stream | Tr-papillion Creek |
| Coordinates | 41.10734, -95.95584 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 360 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 34 acre-ft |
| Max Storage | 34 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sanitary Improvement District 439 |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/08/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE04209 |
| Federal ID | NE04209 |
| More Info | State Dam Safety Program |