This weekend, the Maryland Department of Transportation State Highway Administration will conduct a routine inspection on the MD 4 (Governor Thomas Johnson Bridge) at the Calvert and St. Mary’s County line. The inspection will occur between 6 a.m. and 2 p.m. Sunday, March 9, weather permitting. 

One of the bridge’s two lanes will be closed and a flagging operation will be in place. Portable variable message signs will be placed along area state routes to make travelers aware of the closure.

Customers who have questions about this work may contact the District 5 Office at 410-841-1000 or toll-free at 1-800-331-5603.  Drivers in need may dial #77 on their mobile device for roadside assistance.