Transportation
Highway Access MD Route 2 connects with U.S. 50/301; MD Route 4 connects with U.S. 301 and the Capital Beltway (I-495). The Thomas Johnson Bridge over the Patuxent River connects MD Routes 2/4 in the southern part of the county with MD Routes 5/235 in St. Mary's County.
Traffic Volume Maps View the Maryland Department of Transportation's Traffic Volume Maps by County .
Airports Calvert County is served by 3 major airports:
Baltimore-Washington International (BWI) Thurgood Marshall Airport is located between Baltimore and Washington, D.C. Dulles International Airport (IAD) is located west of Washington, D.C. Reagan Washington National Airport (DCA) is located adjacent to Washington, D.C. Calvert County also has one local airport, St. Mary's County Regional Airport, which is located southeast of Washington, D.C.
Baltimore-Washington International (BWI) 1 hour, 6 minutes 800-435-9294 Dulles International (IAD) 1 hour, 25 minutes 703-572-2700 Reagan Washington National (DCA) 51 minutes 703-417-8000 St. Mary's County Regional 45 minutes 301-373-5416
Ports Calvert is served by one of the nation's largest seaports, The Port of Baltimore , with a 50-foot channel (64 miles from Prince Frederick). It is the only port in the United States that can be reached by 2 distinct routes. Its sea lanes remain ice-free throughout the year. It is a leading U.S. automobile and break-bulk port with six public terminals including the state-of-the-art Intermodal Container Transfer Facility (ICTF).
Rail The closest rail depot (CSXT) is in adjacent Prince George's County at Upper Marlboro, approximately 30 minutes away.
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