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CDOT studying possibility of adding lanes on I-25 between Fillmore, Garden of the Gods exits in Colorado Springs

COLORADO SPRINGS, Colo. (KRDO) -- Drivers who regularly travel the mile-long stretch on Interstate 25 between Fillmore street and Garden of the Gods Road dread the daily traffic bottleneck there, that can worsen already-heavy traffic congestion.

However, the bottleneck decreases as you drive away from that stretch, and traffic suddenly opens up for easier driving.

The situation has led the Colorado Department of Transportation to conduct a design study on whether more lanes could be added to that section of the freeway.

Mitch Holck, a CDOT engineer, said that adding a continuous auxiliary lane on the right side in each direction would give drivers more time to merge in and out of traffic; backups occur when approaching traffic slows down for the merging vehicles.

The targeted stretch would continue to have three through lanes of traffic in each direction.

The situation is happening despite CDOT's recent installation of traffic signals called ramp meters on several entrances to the interstate, designed to keep too many vehicles from merging at the same time during peak traffic periods.

"We're looking at the best way to accommodate that aux lane in our design," Holck said. "We're not really sure what it's going to look like yet. But that's part of our study, is what's the best way to add that aux lane."

Aux lanes are already in place on I-25 at exits north of Garden of the Gods Road to the Douglas County Line.

Holck said that CDOT also wants to repave I-25 in the study area and replace an aging bridge over Ellston Street. The aux lanes, repaving and bridge replacement would cost around $40 million.

"We'd pay for it with funding provided by state lawmakers this session," he said. "That corridor is very narrow and we're limited in how we can improve it, but we're trying to do the best we can.

CDOT should finish the study by the end of summer and if design criteria are approved, construction could start next summer and take less than a year to complete. Holck said that the agency intends to keep all traffic lanes open during construction.

Drivers who spoke with KRDO NewsChannel 13 on Thursday said that they like the idea but want to see a similar I-25 project on the south side of the city, between Circle Drive and the town of Fountain. That stretch also has a traffic bottleneck.

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Scott Harrison

Scott is a reporter for KRDO. Learn more about Scott here.



  1. The entire Interstate needs an additional lane of traffic. The gov. leaders tried to fix the traffic by adding the additional stop light on the on ramp but that fixed nothing. It took 2 years for the leaders to figure their contractor deal with the lights didn’t work, but they were still paid. Imagine if the gov leaders would actually research and study before they waste the voters tax money on theories that clearly wouldn’t work. If only our leaders used that item on their shoulders for something more than holding a hat.

    1. Ramp metering lights were just installed this year and end of last. Many were just activated. So I don’t know where you got hey have been up for over 2 years…..

  2. The solution will be lets add more lanes so approve it and then they will put in toll lanes….. Don’t trust any of them after the whole “gap project” con.

    1. That friggin’ gap project was one of the biggest screw overs since I moved here. We screamed for years, decades even, for another lane. We finally vote one in and it’s a damn toll lane that absolutely nobody wanted.

      1. Agreed! When we moved here 34 years ago, there was already talk of widening I-25. They did do part of it, through Colorado Springs, and then up towards Denver, but left the bottleneck of the gap. And now, as you say, that’s not what anyone wanted.

  3. When they expanded it several years ago, they needed to make it 4-5 lanes each direction. But no. It was obsolete upon completion. Yet there is no end to the money spent on roads in the Denver area, all the way to Greeley. Hey city, just add a bike lane, that’ll solve the problem.

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