colorado
Legal Load
Width – 8’6″
Height – 14’6″ on designated highways, 13′ on non-designated highways
Length – 57’4″ trailer
Weight
GVW – 80,000lbs on designated highways
85,000lbs on non-designated highways
Steer – 20,000lbs
Single – 20,000lbs
Tandem – 36,000lbs
Tridem – 54,000lbs
Routine Permits
Width – 17′
Height – No limit
Length – No limit
Weight
5 axles – 125,000lbs
6 axles – 140,000lbs
7 axles – 155,000lbs
8 axles – 162,000lbs
Escorts
Width
2 lane – Over 13′ – Front car
4 lane – Over 15’1″ – Rear car or Amber light
All routes – Over 16’6″ Front and Rear cars
Height – Over 16′ – Front pole car
Length
2 lane – Over 85′ – Front car (Some routes won’t require until 110′)
4 lane – Over 115′ – Rear car
Travel Restrictions
Travel allowed sunrise to sunset, 7 days a week. Continuous travel if legal dimensions up to 110,000lbs.
idaho
Legal Load
Width – 8’6″
Height – 14′
Length – 75′ or 53′ trailer
Weight – GVW – 80,000lbs
Routine Permits
Width – 16′
Height – 15’6″
Length – 110′
Weight – Depends on route and vehicle configuration.
Escorts
Width
2 lane – Over 12′ – Front car
Over 14′ – Front and Rear cars
4 lane – Over 15′ – Rear car
All routes – Over 16’6″ Front and Rear cars
Height – Over 16′ – Front car
Length
2 lane – Over 100′ – Rear car
4 lane – Over 120′ – Rear car
Travel Restrictions
Travel allowed 24 hours a day 7 days a week for loads not exceeding 10′ wide, 14’6″ tall and 100′ long or only overweight. Daylight hours only 7 days a week if exceeding these dimensions.
montana
Legal Load
Width – 8’6″
Height – 14′
Length – 75′ or 53′ trailer
Weight
GVW – 80,000lbs
Single – 20,000lbs
Tandem – 34,000lbs
Tridem – 42,000lbs
Routine Permits
Width – 18′
Height – 17′
Length – 150′
Weight
5 axles – 107,000lbs
6 axles – 110,000lbs
7 axles – 114,200lbs
8 axles – 126,000lbs
More weight is allowed but will be dependent on axle spacings and vehicle configuration
Escorts
Width
2 lane – Over 12’6 – Front car
4 lane – Over 16’6″ – Front and Rear cars
Interstates – Over 16’6″ – Rear car
Height – No standard. Hauler responsibility to check for height
Length
2 lane – Over 110′ – Rear car
4 lane – Over 120′ – Rear car
Travel Restrictions
Travel allowed 24 hours a day 7 days a week for loads up to 10′ wide, 14’6″ tall and 110′ long or only overweight. Dimensions exceeding these are allowed travel sunrise to sunset. No travel allowed on interstate travel if over 16′ tall.
utah
Legal Load
Width – 8’6″
Height – 14′
Length – 48′ trailer
Weight – GVW – 80,000lbs
Routine Permits
Width – 14’6″
Height – 14′
Length – Route specific
Weight – Depends on axle spacings
Escorts
Width
2 lane – Over 12′ – Front car
2 lane – Over 14′ – Front and Rear car
4 lane – Over 14′ – Rear car
4 lane – Over 16′ – Front and Rear car
Height – Over 16’2″ – Front pole car and Rear car
Length
2 lane – Over 105′ – Front car
Over 120′ – Front and Rear cars
4 lane – Over 120′ – Rear car
Overhang
Over 20′ ROH – Front for front overhang
Rear for rear overhang
Travel Restrictions
Travel allowed 1/2 hour before sunrise and 1/2 hour after sunset 7 days a week. Continuous if 10′ wide, 14′ tall and 92′ long or only overweight.
wyoming
Legal Load
Width – 8’6″
Height – 14′
Length – 85′ or trailer or single piece of 60′
Weight – Federal bridge formula applied for legal weight
Routine Permits
Width – 18′
Height – 17′
Length – 110′
Weight – 150,000lbs
Escorts
Width
14′ or more – Front and Rear cars on primary and secondary highways
15′ or more – Rear car on interstates
Height – Over 17’6″ – Front pole car
Length – Over 110′ – Front and Rear cars on primary and secondary highways
Travel Restrictions
Movement allowed 1/2 hour before sunrise to 1/2 hour after sunset, 7 days a week. Continuous travel allowed if overweight only or only 10′ or less on interstates. Lighting is required. Permits are only issued at Port of Entry. It is required to call Port of Entry for clearance before entering the state to get to Port of Entry.
For permit to be issued, the following credentials are required to present:
-Operating authority
-IFTA sticker and cab card
-Registration cab card
Port of Entry contact info
Colorado state line – 307-777-4896
Montana state line – 307-674-2350
Nebraska state line – 307-777-4894
South Dakota state line – 307-283-1616
Utah state line – 307-789-3538
