Governor Thomas Johnson Bridge

The Governor Thomas Johnson Bridge crosses the Patuxent River between St. Mary's County and Calvert County, standing 43 meters high. It uses both arch and beam design to handle traffic on the road and allow boats to pass underneath.

The bridge opened in December 1977 and connected two counties that had been separated before. This opening made traveling through southern Maryland easier for people living and working in the area.

The bridge includes separate paths for cyclists, showing how the region values different ways to travel beyond cars. This design choice reflects a practical attitude toward moving people through the landscape.

The bridge accommodates cars, trucks, and bicycles with separate paths for each. It is useful to check traffic conditions before crossing, particularly during rush hours or after heavy rain.

The structure combines arch and beam techniques in a way that lets it carry traffic while allowing sailing boats to pass underneath. This dual approach solved a common challenge when building bridges over navigable rivers.

Location: Maryland

Location: St. Mary's County

Location: Calvert County

Official opening: 1977

Height: 43 m

GPS coordinates: 38.32631,-76.47145

Latest update: December 8, 2025 13:44