Colorado Expands Chain Laws and Adds New Left Lane Restrictions for Commercial Vehicles

The Colorado State Patrol has implemented new regulations that all truck drivers operating in Colorado must be aware of, particularly concerning expanded chain laws and left lane restrictions. These changes are critical to ensure compliance and avoid penalties during the state’s harsh winter conditions. Here’s what you need to know:

Expanded Mandatory Chain Laws

As of August 7, 2024, Senate Bill 24-100 went into effect, significantly expanding Colorado’s mandatory carry chain law for commercial motor vehicles (CMVs). The previous law only required truckers to carry chains on Interstate 70 (I-70) between Dotsero and Morrison. Now, from September 1 through May 31, all CMVs over 16,000 pounds must carry four snow chains or adequate alternate traction devices when traveling on any of the following routes:

  • I-70 west of milepost 259 (Morrison)
  • Colorado Hwy 9 from milepost 63 to milepost 97 (Frisco to Fairplay)
  • Route 40 west of milepost 256 (Empire)
  • US Route 50 west of milepost 225 (Salida)
  • US Route 160 west of milepost 250 (Walsenburg)
  • US Route 550 from milepost 0 to 130 (State line south of Durango to Montrose)

Truckers caught without the required equipment could face fines, which could quickly escalate during winter conditions. Be sure to stock up on chains before your route includes any of these roads.

Left Lane Restrictions

In addition to the expanded chain requirements, new restrictions are now in place limiting the use of the left lane by CMVs on several key sections of I-70. To improve safety, especially in high-traffic or challenging driving areas, truckers are prohibited from using the left lane in the following sections unless otherwise authorized by law to pass:

  • Glenwood Canyon (milepost 115.5 to 131.0)
  • Dowd Junction (milepost 169.5 to 173.0)
  • Vail Pass (milepost 180.0 to 190.5)
  • Eisenhower-Johnson Tunnel (milepost 205.5 to 221.0)
  • Georgetown Hill (milepost 224.0 to 228.5)
  • Floyd Hill (milepost 243.0 to 247.0)

Violating these lane restrictions is considered a Class A traffic infraction, which could result in fines. These areas are known for steep grades and sharp curves, making them particularly dangerous for large vehicles, which is why the restrictions are in place.

Speeding Penalties in Glenwood Canyon

Truck drivers should also be aware that Glenwood Canyon has been designated as a heightened speed limit enforcement zone, meaning speeding violations in this area come with increased penalties. Be extra cautious to adhere to the posted speed limits, especially between:

  • Eastbound: milepost 116.0 and 131.0
  • Westbound: milepost 118.5 and 131.0

With fines doubled in these areas, staying within the limit can help you avoid costly tickets.

Safety and Compliance First

Colorado’s new regulations aim to enhance safety on some of the state’s most challenging highways, especially during winter. Make sure your truck is equipped with the required chains, follow lane restrictions, and be mindful of speed limits in the designated enforcement zones.

For more information and updates, stay tuned to the Colorado State Patrol’s official channels. Stay safe and compliant to avoid fines and keep the roads safer for everyone.

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Electric Chicken

Well-Known Member

27,318 messages 23,360 likes

I will probably boycott Colorado.

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Hammer166

Instigateur №166™

4,398 messages 7,484 likes

Just one more step in the Californication of Colorado.

Most of those left lane restrictions aren't new, the previous were a mix of trucks must use right lane and minimum left lane speeds. All of which were mostly ignored and not enforced. The only place you see any regular enforcement of truck restrictions is WB out of Eisenhower, and occasionally WB Vail and EB Georgetown.

I don't remember the last time I saw a truck pulled over dropping into Denver, which is posted 45 for trucks and rarely adhered to. I normally drop off Vail just below the 45mph Truck speed and constantly have trucks blowing by like I'm chained to a stump. That's every trip.

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Hammer166

Instigateur №166™

4,398 messages 7,484 likes

Yep, I-70 is much safer now! This isn't even one of the tight corners. SMDH
SmartSelect_20240918-221116_Facebook.webp

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389 Hood

Well-Known Member

5,177 messages 7,180 likes

A miles long back up because one jack ass was in a hurry to go nowhere. Physics just doesn't register with some people.

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Reptar

Well-Known Member

76 messages 169 likes

All the things listed above have been in place, and ya still got "drivers" doing 10-25mph over posted truck speed through Glenwood canyon, down the grades, ect. Some because "they've been driving for 30 years and there didn't ever used to be posted truck speed and it the others screwing it up" the others seem to be people who are working their tech support call center job while driving.

Personally I was born an air sick low lander in the flat lands of Nebraska. I have a great respect for the mountains and I'm the guy that knows if I'm going from Denver to Eagle loaded it's going to take me near 3 hours because I take it slow and easy, stay in the right line and obey the posted limits. I'm the guy others are cussing out but you know what. I can drive those mountains a million times too slow, but I can only go too fast once.

Also I carry chains year round due to muddy job sites so the chain thing doesn't bother me either.

Reply 6 Likes

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389 Hood

Well-Known Member

5,177 messages 7,180 likes

They picked on me on the radio the first time I ran over the Rockies. And old guy once told me, 'you go down a little slower than you went up and you'll be fine'.

Coming back east out of Denver on I-70, some cowboy was really whooping it up with other drivers. Called me out as a flatlander with the Florida plates. We rolled by him in the runaway ramp and my wife waved to him out the window while I asked him how he was going to get his load to the customer when he was buried to the frame. He was cussing until we ran out of coax.

I made it back to N.C., dropped my load, reloaded and made it back to Miami without burning any brakes or heat checking the drums. I wonder how long dude sat before he was dragged out and paid the costs to repair the ramp.

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Hammer166

Instigateur №166™

4,398 messages 7,484 likes

I'm up there at least once a week, the stupidity is amazing. A couple months ago I was coming all Vail with a fat load and a tailwind, so I had to come down a gear lower than normal. I get passed by an empty System truck headed over to get his drywall, and he lights up the radio with this gem: "Carhauler, truck speed limit is 45 not 35." As in the truck speed limit determines the safe speed to go down the mountain and not the capabilities of the truck! WTAF???

The training system in trucking is broken. I'm so sick of these guys who are trained by freaking idiots who have no business teaching somebody how to take out the trash much less drive a damn truck in the mountains! If the feds want to make Trucking safer, that's where to start. But we all know the ATA will be 1,000% against that, because that will cost them money.

Reply 4 Likes

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Duck

Sarcastic remark goes here

28,990 messages 39,891 likes

I came up with an easy way to teach high school drivers ed students about momentum.

Get two shopping carts and several cases of bottled water. Put all the water in one cart and leave the other one empty. Have each student push each cart in the hallway (during class when they're empty) at a jogging pace and when they cross a piece of tape or something on the floor, they have to stop as quickly as they can.

They do this while the teacher is explaining why heavy trucks need more braking distance. Perhaps cover the loaded cart with poster board and let one of the kids draw a semi truck on it, and do the same with the empty cart but have them draw a small car.

It's easy, safe because the ballast is just water bottles, and probably not hard for a high school to mooch a couple of carts from their local Walmart. And the kids are already familiar with shopping carts and probably already know the heavy cart is harder to push and steer. All they'd need is a teacher to make them realize the physics are the same as with moving vehicles on the road.

Reply 5 Likes

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Electric Chicken

Well-Known Member

27,318 messages 23,360 likes

Had a FedEx do some stupid moves behind me to get around while I climbed 70 yesterday so he could keep hauling ass.

He gained some distance on me for sure but about 12 minutes later I was passing him as he got off his exit.

Reply 1 Like

389 Hood

Well-Known Member

5,177 messages 7,180 likes

Could you just imagine if they all drove tankers?
I like people that say they would be scared to death to pull fuel of chemicals. GOOD! YOU won;t be out there. I want someone confident in their abilities controlling that truck.

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Electric Chicken

Well-Known Member

27,318 messages 23,360 likes

I dunno I'd rather have people who are scared but do it anyway. Like soldiers.

Because I'm sure all those wiggle wagons flipped over in the median had confident drivers too.

Reply 1 Like

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