Thursday morning, Vectren crews began replacing street light poles on the Lloyd Expressway.
Work started at the Main Street exit ramp and continued east to the Green River Rd. overpass.
Crews will work on the westbound side, starting at Weinbach Ave. and ending just west of Barker.
There will be signs for drivers to be aware of the work zone.
Vectren expects to be done by the end of the day on Monday.