Trucking in Colorado

Colorado trucking means the Rockies — I-70 chain law, tunnel clearances, and Denver as the Rocky Mountain intermodal hub.

Major interstates

I-25, I-70, and I-76.

Weight, size, and permits

Trucks over 55 ft prohibited in Eisenhower Tunnel; hazmat must use US-6 over Loveland Pass.

Weather and seasonal restrictions

Chain law on I-70 through the Eisenhower corridor Sept-May, strictly enforced. Fines start at $500.

Weigh stations and enforcement

CDOT scales on I-70 (Dumont), I-25 (Monument), and I-76.

Freight hubs

Denver, Colorado Springs, and Grand Junction.

Frequently asked

When is the chain law in effect?

Automatically Sept 1-May 31 on I-70 west of Denver, and any time CDOT declares Level 1 or 2.

Can a 53-ft trailer take Eisenhower Tunnel?

Yes but not combinations over 55 ft.

Rocky Mountain parking?

Silverthorne and Frisco are limited; stage in Grand Junction or Denver.