Interstate 25 commuters will face increased construction and slower speeds south of Fort Collins in the coming weeks.

Construction began in mid-September on a yearlong project to replace the I-25 bridges over Crossroads Boulevard in Loveland. This week, flaggers will be stationed in the area to direct traffic along Crossroads Boulevard, and speeds have already been lowered to 65 mph.

Before Thanksgiving, work on the bridges will begin in earnest.

Crews have begun to lay asphalt between the north and southbound lanes of I-25 to use as a temporary lane. Later this month, northbound traffic will be diverted across a temporary bridge and crews will replace the northbound bridge.

Once that work is completed, southbound traffic will be diverted across a temporary bridge, and the southbound bridge will be replaced. The switch to the work on the southbound bridge is projected for mid-March. The entire project is projected to be completed in October.

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