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U.S. Route 1

In Maryland, U.S. Route 1 runs between Washington, DC and Baltimore parallel to Interstate 95, before turning away from I-95 north of Baltimore and forging its own path into Pennsylvania. Before the construction of local Interstate highways, US 1 was the main north-south through route between Baltimore and DC.

 

US 1 has an alternate route in southwestern Baltimore County and city, a business route through Bel Air in Harford County and a Susquehanna River crossing via the Conowingo Dam.

Photo Guides:

U.S. Route 1 north - District of Columbia line to Baltimore

U.S. Route 1 north - Baltimore to Pennsylvania line

U.S. Route 1 south - Pennsylvania line to Baltimore

U.S. Route 1 south - Baltimore to District of Columbia line

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