Life in the fast lane is slowing down along Interstate 70.
Transportation experts say 15,000 vehicles passed through the Eisenhower Tunnel daily in 1985. That's nearly doubled to 28,000 as of 2001.
They predict 41,000 will pass through by the year 2025 with 63 thousand on Saturdays alone.
Stop and go traffic is a common sight already during ski season or summer holidays. Experts say there's no relief in sight.
Plans for a monorail were shot-down a few years ago and officials say it would be difficult to add lanes to the highway.