How to handle Traction Law Alert when driving I-70 through Colorado mountains in a rented AWD?
Today I attempted to get to Idaho Springs, CO from the West in a rented AWD vehicle about 10pm. It was snowing, and my dashboard was showing 23F outside. As I was approaching Vail I saw a number of flashing alerts saying that all AMV (automotive vehicles?) have to fit chains in a designated area where I then saw trucks fitting chains. Cars, however, were just proceeding straight through. I did not have any chains, and because I had been in the US for only 4 days (for the first time!) I decided to turn back, stay the night safe and decide what to do tomorrow.
I have now found that alert on cotrip.org:
The alert is saying that AWD vehicles are OK to drive there. However, my assumption is that assumes winter tires.
Could somebody please clarify from their knowledge/experience of driving that road:
- Are AWD vehicles required to fit chains when that kind of alert is on? If no, are they required to have winter tires fitted?
- If winter tires are required, will M+S (mud + snow?) tires fit the definition of "winter tires" in this case, or do they need to be studded?
- How steep/dangerous the road is in terms of the risk of losing traction?
- Given that the rental company is aware of the pickup/dropoff locations (Las Vegas -> Denver), would it be normal/lawful for them to apply penalties if I cannot drop the car off in the agreed place/time (Denver tomorrow morning) because I am not allowed to drive the car because it does not satisfy the requirements of the Traction Law Alert? If I cannot drive there my intention would be to call them and arrange alternative dropoff location.
If you can answer any of the questions above please do! Thanks!
P. S. I noted this closely related question but it does not address what I am asking.
UPDATE
I just noted there is now another alert called CHAIN LAW which explicitly requires ALL vehicles to have chains (apparently, the flashing screen I saw on the road was conveying this alert, not the Traction Law one):
Best Answer
Just found answers to questions 1 and 2:
Traction Law (Code 15)
During an active Traction Law (also known as a Code 15), motorists must have either snow tires, tires with the mud/snow (M+S) designation, or a four-wheel/all-wheel drive vehicle. All tires must have a minimum one-eighth inch tread.
Under a Traction Law, both metal-studded and studless snow tires comply with the "snow tire" requirement of the law. CDOT recommends using studless snow tires instead of studded because studded tires can chip and cut grooves in the road, creating a hydroplaning hazard when the roadway is wet. Whether using studded or studless snow tires, all the tires must have a minimum one-eighth inch tread.
So, if it was the Traction Law alert only (not Chain Law Alert) then an AWD would be fine even with non-winter tires. But there was also a Chain Law Alert which requires ALL vehicles to have chains fitted:
Under an active Passenger Vehicle Chain Law, every passenger vehicle will need to have chains or an alternative traction device equipped.
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Are traction laws in effect in Colorado?
Colorado's Traction Law is now in effect! Each year from September 1 to May 31, the traction law is active at ALL TIME (sun or snow). To be in accordance, all drivers on I-70 must comply with one of the three following: 1: AWD/4WD vehicle AND required minimum tread depth of 3/16"Are chains required on I-70 in Colorado?
Seasonal Closures. From Sept. 1 through May 31, all commercial vehicles traveling on I-70 between the Dotsero exit (mile point (MP) 133) and the Morrison exit (MP 259) must carry sufficient chains to be in compliance with the Colorado chain law.Is AWD necessary in Colorado?
The first question many new comers have is \u201cDo I need a 4-wheel drive?\u201d, the answer is no. Most cars are equipped with all wheel drive, which will handle the Colorado winter roads just fine. It's important to remember that 4-wheel drives may get you through the deep powder, however they do help stop on the ice.Rental Cars \u0026 Out-Of-Town Drivers Should Know About Colorado's Traction Law
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