Dragest Dam
Dragest Dam is an earth dam located in Ziebach County, South Dakota, built in 1977. It carries a Significant hazard potential classification and has a fair condition assessment.
About Dragest Dam
Dragest Dam is a dam in Ziebach, South Dakota. The dam is owned by Sddot (state). It impounds the Irish Creek-tr.
The dam stands 32 feet tall and stretches 650 feet across, has a maximum storage capacity of 700 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 10/24/2024.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | South Dakota |
| County | Ziebach |
| River/Stream | Irish Creek-tr |
| Coordinates | 45.38585, -101.58523 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 650 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 700 acre-ft |
| Max Storage | 700 acre-ft |
| Normal Storage | 198 acre-ft |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | SDDOT |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 10/24/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02664 |
| Federal ID | SD02664 |
| More Info | State Dam Safety Program |