Colorado State Regulations
Transportation Restrictions
Travel restricted any time on Memorial Day, Independence Day, and Labor Day.
Travel is allowed on New Year’s Day, Thanksgiving, and Christmas. However, if any holiday falls on a Saturday, travel restricted on the previous Friday, and if the holiday falls on a Sunday, travel restricted on the following Monday.
In the Cripple Creek area, travel restricted on Friday, Saturday, and Sunday for Memorial Day, Independence Day, Labor Day, and New Year’s Day during the hours of 3:00 PM and 7:00 PM on the following routes:
- SH 24 between SH 67 at Divide and Woodland Park
- SH 67 between SH 24 at Divide and Cripple Creek.
Travel restricted during inclement weather and adverse road conditions such as water, ice, and snow reducing actual lane widths, and visibility is less than 1,000 lbs.
Denver Area – Travel restricted 6:00 AM – 9:00 PM and 3:00 PM – 6:00 PM
Pueblo Area – Travel restricted 7:00 AM – 9:00 AM and 4:00 pm – 6:00 PM
Central City – Travel Restricted 3:00 AM – 11:00 AM
Operating Time
Varies per permit
Weekend Travel
Travel is permitted Saturday and Sunday
Transportation Requirements
Superloads
Anything over Routine Issue dimensions requires special approval by the DOT.
Oversize Load Signs
“Oversize Load” signs required for any oversize transport.
Flags/Lights
Red flags are required at the end of any overhang over 4’. At night, a red light is required at the end of overhang over 4’.
Legal Limits
| Component | Restriction |
|---|---|
| Single Axle | 20,000 lbs. |
| Tandem Group | 36,000 lbs. (Interstate), 40,000 lbs (Non-Interstate) |
| Tridem Group | 54,000 lbs. |
| Gross Weight | 80,000 lbs (Interstate), 84,000 lbs. (Non-Interstate) |
| Width | 8’6″ |
| Height | 13′ |
| Length – Semi-Trailer | 57’4″ |
| Length | 70′ |
| Overhang | 4′ Front | 10′ Rear |
Routine Issues
| Component | Restriction |
|---|---|
| Single Axle | 22,000-27,000 lbs. |
| Tandem Group | 42,000-50,000 lbs. |
| Tridem Group | 55,000-65,000 lbs. |
| Quad Group | Up to 72,000 lbs. |
| Gross Weight | 200,000 lbs. |
| Width | 17′ |
| Height | 16′ |
| Length | 110′ On Mountainous 2 Lane Highways |
| Length | 120′ On All Non-Mountainous 2 Lane Highways |
| Length | 130′ On All 4-Lane Highways |
| Overhang | 25′ Front | 35′ Rear |
Maximum permitted weights depend on route classification and axle spacings
Escort Requirements
| Dimension | Requirement |
|---|---|
| Blue Routes | |
| Width 8’6″ up to 11′ | 1 Rear |
| Width 11′ – 13′ | 2 (Front & Rear) |
| Yellow Routes | |
| Width 11′ up to 13′ | 1 Front |
| Width 13′ – 15′ | 2 (Front & Rear) |
| Green Routes | |
| Width 13′ up to 15′ | 1 Rear – 4-Lane Highways |
| Width 15′ – 17′ | 2 (Front & Rear) – 2-Lane Highways |
| Width 15′ – 17′ | 1 Rear – 4-Lane Highways |
| White Routes | |
| Width 15′ – 17′ | 1 Rear |
| Length 85′ up to 110′ | 1 Front – Mountainous 2-Lane Highways |
| Length 110′ -115′ | 1 Front – 2-Lane Highways |
| Length Over 115′ | 1 Rear – 4-Lane Highways |
| Height Over 16′ | 1 Front with High Pole |
| Front Overhang Over 15′ | 1 Front |
| Rear Overhang Over 25′ | 1 Rear |