TILLATOBA–A bridge has been closed on Hwy. 51 between Oakland and Tillatoba after MDOT found a large gap near the north end of the bridge. The bridge was closed late last Wednesday and advance warning signs of the closure have been placed north and south of the bridge to warn motorists. All commercial vehicles are directed to I-55 for the duration of the closure. MDOT advises motorists to use I-55 or seek alternate routes. The bridge is located three miles south of the Highway 32 and Highway 51 intersection and spans the railroad.