Pudwell Dam
Pudwell Dam is an earth dam located in Corson County, South Dakota, built in 1939. It carries a Significant hazard potential classification.
About Pudwell Dam
The primary purpose of Pudwell Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by S&pl (state). It impounds the Iron Dog Creek-tr near Bullhead.
The dam stands 27 feet tall and stretches 640 feet across, creates a reservoir covering 95 acres, has a maximum storage capacity of 1,734 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.
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. The most recent inspection on record was 11/26/2024.
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Location
| State | South Dakota |
| County | Corson |
| Nearest City | Bullhead |
| River/Stream | Iron Dog Creek-tr |
| Coordinates | 45.92198, -101.26456 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 640 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 1,734 acre-ft |
| Max Storage | 1,734 acre-ft |
| Normal Storage | 631 acre-ft |
| Surface Area | 95 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 2,866 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | S&PL |
| Owner Type | State |
| Hazard Classification | Significant |
| Last Inspection | 11/26/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00601 |
| Federal ID | SD00601 |
| More Info | State Dam Safety Program |