State highway engineers have reopened a westbound bridge on Interstate 465 that had been closed because of propane tanker explosion on an Indianapolis expressway.
The eastbound I-465 bridge that was directly over the scene of the crash Thursday remains closed.
Engineers will examine steel samples from both bridges to determine whether it's safe to reopen the eastbound bridge. Samples from the westbound bridge will be used as a comparison.
The closure is on the northeast side of Indianapolis, which is one of the area's busiest traffic corridors and averages more than 150,000 vehicles a day.
The state highway department says Thursday's explosion on an I-69 ramp knocked out one of 45 concrete columns supporting the bridges that will need to be replaced.