Travel Forecast & Tips


I-70  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

August 17-19, 2018

Friday Westbound:  Traffic is likely between Noon and 6:30 p.m. with delays of 20 minutes.  Traffic will be at its heaviest between 3:00 and 5:00 p.m.

Saturday Westbound: Plan for congestion between 10:00 a.m.-3:30 p.m.  Last year the heavy volume resulted in 20 extra minutes travel time between C470 and Silverthorne.

Saturday Eastbound:
There will likely be some slowing in the 3:00-5:00 p.m. timeframe.

Sunday Eastbound:
Expect high volumes and delays from 11:00 a.m. to 7:00 p.m.  Based on historical data, travelers might experience 30 minutes extra travel time from Silverthorne to C-470 during this timeframe. The worst of the congestion will occur in the mid to late afternoon. Consider staying later into the day and taking advantage of a Peak Time Deal! Search by type of deal and location to find a sweet deal on an activity, a Sunday night stay or bite to eat.

*The 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

(June to mid-September. Based on historical data.)

I-70 summer traffic is fairly predictable so with just a bit of planning travelers can enjoy More Mountains, Less Traffic.   Below is the typical summer weekend traffic pattern.

Friday Westbound– There are occasionally moderate delays heading westbound on Friday evenings. Traffic may build between Noon-3:00 p.m., peak around 4:00 p.m., and end between 6:00-7:00 p.m. Delays during this timeframe might mean an added 20 minutes to a trip from C470 to Frisco.

Saturday and Sunday Westbound –On Saturdays, you might experience congestion from 10:00-2:00 p.m.  Get an earlier start to avoid traffic.  There are rarely westbound delays on Sundays. 

Saturday Eastbound- Saturday eastbound traffic tends to be much lower in volume than Sunday but slow traffic might be encountered mid-afternoon/early evening.

Sunday Eastbound – According to historical data, eastbound traffic starts to build around 11:00 a.m. The peak of traffic is consistently between 3:00 and 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 approximately 7:00-8:00 p.m.  To avoid the traffic, consider staying in the mountains for dinner, or spend Sunday night and head back to the Front Range early Monday morning.  Check out the Peak Time Deals for discounts on dining, shopping, activities and Sunday night lodging deals!

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.

Safety Metering – Safety metering eastbound at the Eisenhower Tunnel goes into effect during high volume times.  This process controls the flow of traffic eastbound into the Eisenhower Tunnel, so traffic does not back up in the tunnel.  Expect eastbound delays when metering is in effect.

Weather- In the summer, weather plays a large 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.

Mountain Express Lane – This eastbound express lane provides a more reliable travel time to those willing to pay the toll.  Get the ExpressToll pass to pay the posted toll rate.  Those without a pass will be billed the posted rate plus a service charge.  More info at