Normandale Lake
Normandale Lake is an earth dam located in Hennepin County, Minnesota, built in 1980. It carries a Low hazard potential classification.
About Normandale Lake
The primary purpose of Normandale Lake 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 Bloomington (local government). It impounds the Ninemile Creek near Bloomington.
The dam stands 7 feet tall, creates a reservoir covering 82 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 33 square miles. Completed in 1980, the structure is 46 years old.
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 05/23/2024.
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Location
| State | Minnesota |
| County | Hennepin |
| Nearest City | Bloomington |
| River/Stream | Ninemile Creek |
| Coordinates | 44.84816, -93.35153 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Surface Area | 82 acres |
| Drainage Area | 33 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | City of Bloomington |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Last Inspection | 05/23/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01494 |
| Federal ID | MN01494 |
| More Info | State Dam Safety Program |