Minnesota Department of Transportation

511 Travel Info

I-35, I-535, Hwy 53 Twin Ports Interchange

Duluth

Technical documents

The files below include technical and engineering documents that were prepared to inform the development of alternatives and are made available for grant applications and contractor information. Please contact Micheal Foley if an ADA-accessible version is needed.

See Maps and Engineering for current layouts and project information.

Note: some of these files are large and may take some time to open.

Alternatives Development Report

Phase 1 environmental

Traffic counts and modeling

Noise