St Louis County Bridge 69L75 Replacement – 401 Water Quality Certification

We invite you to comment on the draft 401 Water Quality Certification for St Louis County Bridge 69L75 Replacement in St Louis County.

St Louis County Public Works proposes to replace a 35-foot span bridge carrying CSAH 49 over the Us-Kab-Wan-Ka River with a double 12-foot by 7-foot box culvert.

There will be 2,977 square feet of permanent impacts, mitigation will be at a 1:1 ratio.

A 401 Water Quality Certification is required when an individual, business, or property owner proposes construction-related activities near a navigable lake, river, stream, or adjacent wetland. The MPCA reviews projects to ensure they will not violate Minnesota's more protective water quality standards. The 401 certification becomes an enforceable component of the associated federal license or permits issued under the Clean Water Act.