PennDOT District 11 is announcing inspection activities on the Monaca-Rochester Bridge (Route 18) over the Ohio River in Rochester and Monaca boroughs, will begin today weather permitting. Lane narrowing on the bridge will occur weekdays from 9 a.m. to 3 p.m. through Friday, May 10. Two lanes will be maintained at all times on the bridge.  Additionally, single-lane restrictions will occur on Ohio River Boulevard (Route 65/51) in both directions under the bridge for one or two days during the inspection.Crews from ms consultants, Inc. will conduct the inspection. Please use caution when driving through the area.