Erie Basin 1
Embarrass River-TR·
St. Louis, Minnesota·
Built 1978·
Earth·
200 ft tall
Physical Details
| Dam Height | 200 ft (taller than 99.7% in MN) |
| Dam Length | 13,600 ft |
| Dam Type | Earth |
| Max Storage | 35.6K acre-ft |
| Normal Storage | 10.3K acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 100 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | MN00663 |
Safety Information
Significant Hazard
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities
Emergency Action Plan: No
Last Inspection: October 5, 2022
State Regulated: Yes
Regulatory Agency: MNDNR EWR
Ownership
Poly Met Mining, Inc.
Private
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Significant Hazard 35 ftFrequently Asked Questions
What is the hazard classification of Erie Basin 1?
Erie Basin 1 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Who owns Erie Basin 1?
Erie Basin 1 is owned by Poly Met Mining, Inc. (Private).
When was Erie Basin 1 last inspected?
Erie Basin 1 was last inspected on October 5, 2022.
When was Erie Basin 1 built?
Erie Basin 1 was completed in 1978, making it 48 years old.
Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.