Drivers headed east on a bridge of the Oakland Expressway should expect minor delays Friday morning, as crews close the left lane to make drainage repairs.The lane on the expressway, which is Kansas Highway 4, will be closed over the bridge at the interchange with Sixth Street, which is U.S. Highway 40 in Topeka.The closure is set to begin at 9 a.m. and be completed by noon, said Kim Qualls, a spokeswoman for the Kansas Department of Transportation.Drivers in the area should expect minor delays, she said.