Boulder Lake Dike Cc
Boulder Lake Dike Cc is an earth dam located in St. Louis County, Minnesota, built in 1919. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Boulder Lake Dike Cc
The primary purpose of Boulder Lake Dike Cc is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Allete, Inc. (private). It impounds the Otter Creek.
The dam stands 20 feet tall, creates a reservoir covering 4,100 acres, and has a maximum storage capacity of 30,300 acre-feet. Completed in 1919, the structure is over a century 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/30/2018.
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Location
| State | Minnesota |
| County | St. Louis |
| River/Stream | Otter Creek |
| Coordinates | 47.04150, -92.18670 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1919 (107 years old) |
Storage & Hydraulics
| NID Storage | 30,300 acre-ft |
| Max Storage | 30,300 acre-ft |
| Normal Storage | 29,440 acre-ft |
| Surface Area | 4,100 acres |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Allete, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/30/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00611 |
| Federal ID | MN00611S002 |
| More Info | State Dam Safety Program |