Silver Creek No. 4 is an earth dam located in Minnehaha County, South Dakota, built in 1963. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 878 ft long, taller than 55% 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 Silver Creek No. 4
The primary purpose of Silver Creek No. 4 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 Silver Creek Watershed District (local government). It impounds the Silver Creek near Renner.
The dam stands 26 feet tall and stretches 878 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 427 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1963, 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.
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Location
| State | South Dakota |
| County | Minnehaha |
| Nearest City | Renner |
| River/Stream | Silver Creek |
| Coordinates | 43.75212, -96.70976 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 26 ft |
| Dam Length | 878 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 427 acre-ft |
| Max Storage | 427 acre-ft |
| Normal Storage | 216 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,422 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Silver Creek Watershed District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02263 |
| Federal ID | SD02263 |
| More Info | State Dam Safety Program |