Rock 33 is a rockfill dam located in Pipestone County, Minnesota. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 250 ft long, taller than 68% 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 rockfill embankment section and the water level is illustrative.
About Rock 33
The primary purpose of Rock 33 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Fenicle, Merle & Eva (private). It impounds the East Branch Rock River near Edgerton.
The dam stands 30 feet tall and stretches 250 feet across, creates a reservoir covering 0 acres, has a maximum storage capacity of 17 acre-feet, and collects water from a drainage area of 0 square miles.
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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Minnesota |
| County | Pipestone |
| Nearest City | Edgerton |
| River/Stream | East Branch Rock River |
| Coordinates | 44.02842, -96.13697 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 250 ft |
Storage & Hydraulics
| NID Storage | 17 acre-ft |
| Max Storage | 17 acre-ft |
| Normal Storage | 1 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Fenicle, Merle & Eva |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01765 |
| Federal ID | MN01765 |
| More Info | State Dam Safety Program |