Erie Pier Dike
Erie Pier Dike is an earth dam located in St. Louis County, Minnesota, built in 1978. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Erie Pier Dike
Erie Pier Dike is a dam in St. Louis, Minnesota. The dam is owned by Duluth Port Authority (local government). It impounds the Lake Superior near Duluth.
The dam stands 11 feet tall and stretches 3,500 feet across, has a maximum storage capacity of 800 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/31/2013. That was over 12 years ago.
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Location
| State | Minnesota |
| County | St. Louis |
| Nearest City | Duluth |
| River/Stream | Lake Superior |
| Coordinates | 46.74046, -92.14364 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 3,500 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 800 acre-ft |
| Max Storage | 800 acre-ft |
| Normal Storage | 490 acre-ft |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Duluth Port Authority |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/31/2013 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00719 |
| Federal ID | MN00719 |
| More Info | State Dam Safety Program |