Interstate 395 (I-395) is an auxiliary Interstate Highway in the US state of Maryland. Known as Cal Ripken Way, the highway runs from I-95 north to Howard Street and Camden Street in Downtown Baltimore, where it provides access to the Inner Harbor and the Baltimore Convention Center. The Interstate also serves the Camden Yards Sports Complex, which contains M&T Bank Stadium and Oriole Park at Camden Yards, homes of the Baltimore Ravens and Baltimore Orioles, respectively. I-395 also serves as the southern terminus of Martin Luther King Jr. Boulevard, an urban arterial that provides a western bypass of Downtown Baltimore and connects I-95 with U.S. Route 40 (US 40), US 1, and I-83. The Interstate is maintained by the Maryland Transportation Authority (MDTA) and, like all Interstates, is a part of the National Highway System. Route description I-395 begins at a directional T interchange with I-95 that is entirely elevated above the Middle Branch of the Patapsco River, an estuary that receives Gwynns Falls just west of the interchange. The two-lane ramps from northbound I-95 to northbound I-395 and southbound I-395 to southbound I-95 pass over ramps from southbound I-95 to the southbound Baltimore–Washington Parkway and from the northbound parkway to northbound I-95. The one-lane ramp from southbound I-395 to northbound I-95 splits from the southbound I-95 ramp where the Interstate becomes a viaduct over land. I-395, which carries six lanes, passes to the west of the Federal Hill neighborhood and to the east of M&T Bank Stadium and begins to parallel Maryland Transit Administration's Baltimore Light RailLink and CSX Transportation's Baltimore Terminal Subdivision railroad line, which carries MARC Train's Camden Line. East of the stadium, two-lane flyover ramps from northbound I-395 to Martin Luther King Jr. Boulevard and from the boulevard to southbound I-395 leave and join the mainline. I-395 curves to due north as a four-lane freeway that gains one additional lane in each direction as the viaduct ends and the highway approaches its signed, limited access terminus at Conway Street adjacent to Camden Station, the northern terminus of the Camden Line. The train station is just to the east of the B&O Warehouse, which is just to the east of the Oriole Park at Camden Yards. Conway Street heads east toward Light Street and the Inner Harbor. I-395 officially continues one block north along the western edge of the Baltimore Convention Center to a northern terminus at