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Karcher Road overpass to be closed for nine months starting tonight

Posted: 3:32 PM, Mar 07, 2019
Updated: 2019-03-12 17:59:51-04

NAMPA — A series of closures on Interstate 84 in Nampa kick off today as the Idaho Transportation Department begins a nine-month project to replace the Karcher Road Overpass. The project will clear the way for widening I-84 in Canyon County over the next several years.

“The Karcher Road Overpass will be closed for nine months starting Tuesday [March 12] and a detour will be in place on Karcher Road 24/7,” said ITD spokesman Jake Melder.

Eastbound I-84 will be closed overnight on March 15 while the overpass is removed. A detour will begin at 10 p.m. Friday (March 15) and end at 7 a.m. Saturday (March 16). Westbound I-84 will be closed and traffic will be detoured from 10 p.m. Saturday (March 16) to 7 a.m. Sunday (March 17).

“Single-lane restrictions will be in place at night on I-84 from March 12th to the 22nd. Nighttime work hours begin at 10 p.m. and end at 5 a.m. during the week, and 7 a.m. on weekends. All lanes will be open during the day,” Melder explained.

Business access on Karcher Road will be open throughout the project.

“This project is a significant step in our goal of improving I-84 in Canyon County. We have been working with the community for the last year in preparation for this closure,” said ITD Southwest Idaho Transportation Program Manager Amy Schroeder. “Our analysis shows a full closure will significantly reduce the overall time to complete work on this area of I-84.”

“The overpass was built in 1966. The new overpass will include one lane in each direction, wider shoulders, and a sidewalk on the north side of the overpass. I-84 will be widened to three lanes in both directions between the Karcher Road and Franklin Boulevard interchanges with auxiliary lanes between exits,” Melder explained.

Interstate widening in Canyon County is expected to begin in early summer.

For the latest on the construction, check out ITD's podcast.
(Map courtesy: Idaho Transportation Dept.)