FREDERICKSBURG – Route 3 travelers will encounter brief overnight delays crossing the Robert O. Norris, Jr., Bridge between Lancaster and Middlesex counties on Monday – Thursday, Aug. 3 – 6, for maintenance work. A portion of the Route 3 bridge over the Rappahannock River will be reduced to a single travel lane. Automated flagging devices will direct one-way, alternating traffic through the work zone. Updates on this work zone are available on 511 Virginia. Travelers can also download the free mobile 511 Virginia app, or call 511 from any phone in Virginia.