MEMPHIS, Tenn.—Transportation officials on Friday sped up their plans to reopen the Interstate 40 bridge linking Arkansas and Tennessee that was closed after a crack was discovered in the span. The Tennessee Department of Transportation said the eastbound lanes of the Hernando DeSoto Bridge over the Mississippi River will reopen to limited traffic on Saturday night, moving up their original plan to partially reopen the bridge on Monday morning. “The contractor is ahead of schedule and the eastbound lanes will now reopen tomorrow night!” the department said in a statement posted on its website Friday afternoon. The department said it still planned to reopen the bridge’s westbound lanes on Aug. 6, though it said that could also get moved up. The opening schedule is barring any complications, the department said. The I-40 bridge was shut down on May 11 after inspectors found a crack in one of two 900-foot horizontal …