Bolstad Wpa is an earth dam located in Brookings County, South Dakota, built in 1955. It carries a Low hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 270 ft long. 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 Bolstad Wpa
The primary purpose of Bolstad Wpa is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Usf&ws (federal). It impounds the Trib. Big Sioux River.
The dam stands 7 feet tall and stretches 270 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1955, 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 | Brookings |
| Nearest City | None |
| River/Stream | Trib. Big Sioux River |
| Coordinates | 44.25166, -97.06166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 270 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 37 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 200 cfs |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Usf&ws |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02415 |
| Federal ID | SD02415 |
| More Info | State Dam Safety Program |