Snow Dam
Snow Dam is an earth dam located in Tripp County, South Dakota, built in 1934. It carries a Low hazard potential classification.
About Snow Dam
The primary purpose of Snow Dam 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 No Moccasin Creek.
The dam stands 23 feet tall and stretches 980 feet across, creates a reservoir covering 102 acres, has a maximum storage capacity of 1,460 acre-feet, and collects water from a drainage area of 31 square miles. Completed in 1934, 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 07/20/2023.
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Location
| State | South Dakota |
| County | Tripp |
| Nearest City | None |
| River/Stream | No Moccasin Creek |
| Coordinates | 43.55548, -99.68497 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 980 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 1,460 acre-ft |
| Max Storage | 1,460 acre-ft |
| Normal Storage | 548 acre-ft |
| Surface Area | 102 acres |
| Drainage Area | 31 sq mi |
| Max Discharge | 4,016 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | GF&P |
| Owner Type | State |
| Hazard Classification | Low |
| Last Inspection | 07/20/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00558 |
| Federal ID | SD00558 |
| More Info | State Dam Safety Program |