BALTIMORE (May 6, 2010) On Thursday, May 13, the Maryland Department of Transportations State Highway Administration (SHA) will perform routine maintenance on the Thomas Johnson Bridge over the Patuxent River. Beginning at 9 p.m., SHA crews will establish a flagging operation on the bridge to allow for the work. Motorists should expect delays when crossing the bridge during the overnight hours. Work should be completed by 5 a.m. Friday, May 14.
The one-night repair of a metal expansion joint by SHA crews is a routine, maintenance-related item. In addition to biennial inspections of the entire bridge structure, SHA conducts regular monitoring of the bridge deck (riding surface) and performs maintenance, repairs and upgrades to the deck as appropriate.
Constructed in 1977, the Thomas Johnson Bridge carries MD 4 (Patuxent Beach Road) traffic between Calvert County and St. Marys County. On average, more than 25,000 vehicles per day cross the bridge.