DENVER — The Colorado Department of Transportation (CDOT) announced Friday that dynamic tolling for parts of Interstate 25 and Interstate 70 will begin on Monday.
Tolls for the I-25 South Gap Express Lanes between Monument and Castle Rock, and westbound I-70 between the Veterans Memorial Tunnels and Empire, will be automatically adjusted throughout the day based on real-time traffic conditions.
Tolls for the 18-mile stretch of I-25 lanes will range from $1.50 to $4.75, while tolls for the 12-mile stretch of I-70 lanes will be up to $9.
CDOT said the tolls will be similar to previous time-of-day pricing, but rates may change depending on traffic conditions, meaning tolls may be higher or lower at times than drivers are accustomed to.
Rates may be updated as often as every five to 15 minutes, and overhead signs will display the toll prices currently in effect. The price displayed when drivers enter express lanes is the price they will be if they have an ExpressToll pass. License plate fees will continue to apply for drivers who do not have an ExpressToll pass.
Dynamic tolling was rolled out earlier this year for Central 70 Express Lanes, and will eventually take effect on all express lanes in Colorado.
CDOT said dynamic tolling is designed to better maintain a free-flowing level of traffic congestion.
“Our studies have shown dynamic tolling is helping maintain minimum speeds on the Central I-70 Express Lanes between I-25 and Chambers Road in Denver,” said Piper Darlington, director of the Colorado Transportation Investment Office, the division of CDOT that owns and operates Colorado Express Lanes. “With the amount of traffic that the South Gap sees, we want to ensure that minimum speeds are maintained and drivers have reliable travel times.”
