Construction crews will begin work Tuesday night to replace the 126th Street bridge over Interstate 69, resulting in several lane closures on the busy freeway. The right-side lanes on both southbound and northbound I-69 will be closed from 9 p.m. to 6 a.m. Wednesday. The closure will give contractors time to install a concrete barrier. Then, on or after July 12, the bridge will close while crews work to replace it. The project is slated to take four months.