Lake Minnetonka
Lake Minnetonka is a gravity dam located in Hennepin County, Minnesota. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lake Minnetonka
The primary purpose of Lake Minnetonka is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wd Of Minnehaha Creek (local government). It impounds the Minnehaha Creek near Lake Minnetonka.
The dam stands 8 feet tall and stretches 32 feet across, creates a reservoir covering 14,004 acres, has a maximum storage capacity of 23,340 acre-feet, and collects water from a drainage area of 125 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. 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 | Hennepin |
| Nearest City | Lake Minnetonka |
| River/Stream | Minnehaha Creek |
| Coordinates | 44.95328, -93.48700 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 8 ft |
| Dam Height | 5 ft |
| Dam Length | 32 ft |
Storage & Hydraulics
| NID Storage | 23,340 acre-ft |
| Max Storage | 23,340 acre-ft |
| Normal Storage | 23,340 acre-ft |
| Surface Area | 14,004 acres |
| Drainage Area | 125 sq mi |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | WD of Minnehaha Creek |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/18/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01307 |
| Federal ID | MN01307 |
| More Info | State Dam Safety Program |