Bridges | MG-KRETE Kentucky DOT Bridge Repair June 21, 2021 by Administrator Kentucky DOT Bridge Repair. It was first necessary to chip out the bad concrete up to the drain and remove rust from the rebar.Fitted the bridge with a bottom board and side return board. This can be done with screws and not support beams.Repair was done from the bottom up. The MG-Krete was mixed very dry and packed into the crevice with a simple 2×4.Plastic was placed on the board during the repair, but this could have been ground off. After an hour, holes were drilled and set drains.The finish was then cup ground.A shot of the repair from the outside. The D.O.T. sounded it 6 months later, and it passed. In the same day, we were able to repair 2 beams and do deck patching.