Tolls start today on I-25 between Castle Rock and Monument

By Jim Lawson on January 17, 2024
Tolls start today on I-25 between Castle Rock and Monument.
Photo: Colorado Department of Transportation

Tolls start today on I-25 between Castle Rock and Monument.

From Wednesday onwards, motorists will incur charges for utilizing the express lanes on Interstate 25, spanning between Monument and Castle Rock named “The Gap.”

Following substantial construction in the I-25 Gap project area, the express lanes were inaugurated in November 2022. Throughout this period, tolls were exempted as the Colorado Department of Transportation implemented its tolling system along the 18-mile stretch.

CDOT  has announced that drivers using the express lane will receive a bill ranging from $1.50 to $3.75, depending on the time of day. It is important to note that toll rates vary during peak traffic hours, making them more costly. However, CDOT

suggests that utilizing switchable transponders and toll stickers can help drivers save approximately 40% on toll expenses. Specifically, drivers traveling through the I-25 Gap area with a transponder can anticipate paying between 70 cents and $2 per trip. If you’ve got two or more people in your vehicle, you can use the HOV function for free.

Motorcycles and commercial transit vehicles are eligible to utilize the express lanes without any charge. However, vehicles that have four or more axles will incur an additional fee of $25. It is important to note that drivers who are caught crossing the solid white line to enter or exit the express lanes at unauthorized points will be subject to a fine of $75.

The Gap is an 18-mile stretch of Interstate 25 from south of Castle Rock to Monument. It is the only four-lane section of I-25, connecting Colorado’s two largest cities, Denver and Colorado Springs. Over the years, congestion, crashes and delays have grown due to population growth and more people using the road.

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