Travel Forecast & Tips

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I-70 is congestion free the majority of the time and traffic is quite predictable, weather and accidents withstanding. Plan to avoid peak travel times, and enjoy a delay-free trip along I-70.  Our weekend travel forecast is updated every Thursday afternoon.

Weekend Travel Forecast

October 13-15, 2017

Congestion due to volume is unlikely for the next several weeks and weekend weather is expected to be sunny and dry.  

Friday WB:  No congestion-related delays are anticipated.

Saturday WB:  Travel could be slow from late morning to early afternoon.  Arapahoe Basin will be open!

Saturday EB: No congestion-related delays are anticipated.

Sunday EB: Some slowing is possible in the late afternoon that might translate to 15 minutes of extra travel time. 

*The GoI70.com Travel Forecast is based on historical data, along with an estimation of how weather, construction, public events and other factors might impact travel.

Tips for I-70 mountain travel

Summer Traffic Patterns

(mid-June through mid-September)


Friday Westbound
– There are occasionally moderate delays heading westbound on Friday evenings. Traffic may build between 2:00-3:00 p.m., peak around 4:00 p.m., and end between 6:00-7:00 p.m. These delays might mean an added 20 minutes to a trip from Golden to Vail.

Saturday and Sunday westbound – traffic is well-distributed westbound on weekend mornings. The exception to this is the Saturday of Labor Day Weekend where up to 20 minute delays may occur from 10:00 am-3:00 pm.

Saturday eastbound- Saturday eastbound traffic tends to be much lower in volume than Sunday. It is spread out enough that, barring an accident, there is not much congestion.

Sunday eastbound – According to historical data, in June/July the traffic starts to build between Noon and 1:00 pm, but in August the pattern is for congestion to start by 11:00 a.m. The peak of traffic is consistently at 4:00 pm all summer long. With folks trying to enjoy every bit of daylight in the mountains, the traffic typically doesn’t diminish until sometimes 7:00-8:00 p.m. Consider staying in the mountains for dinner, or spend Sunday night and head back to the Front Range early Monday morning.

Holiday Weekends – when a national holiday falls on a Monday, you can count on Monday afternoon EB traffic to mimic a typical Sunday pattern, but with potentially more volume. On the flip side, the Sunday of holiday weekends tends to have minimal congestion.

Metering - Traffic metering goes into effect during very high volume times at the Johnson/Eisenhower Tunnels.  This process involves controlling the flow of traffic eastbound into the Eisenhower Tunnel, so traffic does not back up in the tunnel.  It is done for safety reasons so emergency vehicles can have access to the tunnel in case of an accident, a fire, etc.

Weather- In the summer, weather plays a larger factor in traveler behavior. If rain showers move in early in the day, expect drivers to head back to the Front Range early as well.

 Check one of CDOT’s Real Time Info resources and plan accordingly and avoid the jam!