Union Creek No. 5
Union Creek No. 5 is an earth dam located in Union County, South Dakota, built in 1978. It carries a Low hazard potential classification.
About Union Creek No. 5
The primary purpose of Union Creek No. 5 is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Union Ck Watershed Dist. (local government). It impounds the Tr-w. Union Creek near North Sioux City.
The dam stands 38 feet tall and stretches 414 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 56 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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.
At 38 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | South Dakota |
| County | Union |
| Nearest City | North Sioux City |
| River/Stream | Tr-w. Union Creek |
| Coordinates | 42.90599, -96.64010 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 414 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 56 acre-ft |
| Max Storage | 56 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 658 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | UNION CK WATERSHED DIST. |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02283 |
| Federal ID | SD02283 |
| More Info | State Dam Safety Program |