Trucking in Michigan

Michigan allows the heaviest legal truck combinations in the US — up to 164,000 lb on 11 axles on designated routes.

Major interstates

I-69, I-75, I-94, and I-96.

Permits

Michigan allows 164,000 lb 11-axle trains on designated routes. Federal 80,000 lb standard interstate.

Weather

Lake-effect snow statewide; frost laws restrict secondaries in spring.

Weigh stations

MSP scales on I-75 and I-94 among busiest in Great Lakes.

Freight hubs

Detroit-Windsor Tunnel and Ambassador Bridge are the busiest US-Canada commercial crossings.

Frequently asked

164k in Michigan?

Only with 11-axle MI-legal combo on approved routes.

Bridge or Tunnel?

Bridge for most commercial; tunnel has height/hazmat limits.

Frost laws?

Late Feb-May, varying by county.