Dutchman Lake
Dutchman Lake is an earth dam located in Cook County, Minnesota, built in 1996. It carries a Low hazard potential classification.
About Dutchman Lake
The primary purpose of Dutchman Lake is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Grand Portage Reservation (bia) (tribal government). It impounds the Grand Portage River-tr near Grand Portage.
The dam stands 10 feet tall and stretches 140 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 437 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1996, the structure is 30 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 10/08/1996. That was over 29 years ago.
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Location
| State | Minnesota |
| County | Cook |
| Nearest City | Grand Portage |
| River/Stream | Grand Portage River-tr |
| Coordinates | 47.96968, -89.71906 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 140 ft |
| Year Completed | 1996 (30 years old) |
Storage & Hydraulics
| NID Storage | 437 acre-ft |
| Max Storage | 437 acre-ft |
| Normal Storage | 210 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 105 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Grand Portage Reservation (BIA) |
| Owner Type | Tribal Government |
| Hazard Classification | Low |
| Last Inspection | 10/08/1996 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN01029 |
| Federal ID | MN01029 |
| More Info | State Dam Safety Program |