Labolt Lake is an earth dam located in Grant County, South Dakota, built in 1935. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 300 ft long, taller than 50% 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 Labolt Lake
The primary purpose of Labolt Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gf&p (state). It impounds the Yellow Bank-tr.
The dam stands 25 feet tall and stretches 300 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1935, the structure is well-established, with more than 75 years of service.
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. The most recent inspection on record was 06/09/2016. That was over 10 years ago.
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Location
| State | South Dakota |
| County | Grant |
| Nearest City | None |
| River/Stream | Yellow Bank-tr |
| Coordinates | 45.05420, -96.68840 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 300 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 11 sq mi |
| Max Discharge | 2,274 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Gf&p |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/09/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01031 |
| Federal ID | SD01031 |
| More Info | State Dam Safety Program |