Rochester 50th Ave Nw
Rochester 50th Ave Nw is an earth dam located in Olmsted County, Minnesota, built in 2007. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Rochester 50th Ave Nw
The primary purpose of Rochester 50th Ave Nw 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 City Of Rochester (local government). It impounds the South Park River-tr near Rochester.
The dam stands 28 feet tall, creates a reservoir covering 4 acres, has a maximum storage capacity of 150 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2007, the structure is relatively new.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/18/2023.
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Location
| State | Minnesota |
| County | Olmsted |
| Nearest City | Rochester |
| River/Stream | South Park River-tr |
| Coordinates | 44.07172, -92.53888 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Year Completed | 2007 (19 years old) |
Storage & Hydraulics
| NID Storage | 150 acre-ft |
| Max Storage | 150 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | City of Rochester |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/18/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01430 |
| Federal ID | MN01430 |
| More Info | State Dam Safety Program |