Although I-295 technically begins at the Capital Beltway (I-95/I-495), a pair of mainline ramps connects the southern terminus of the route to the nearby MD 210. Continuing north from this interchange, I-295 enters the District of Columbia; the route is only 0.8 miles (1.3 km) long in Maryland.
Within the park, I-295 encounters the junction with I-695 (which heads northwest across the 11th Street Bridges) and DC 295 at exit 4. At this junction, I-295 ends, and the mainline freeway through the interchange assumes the identity of DC 295 and continues to Baltimore, though it changes identities several times: DC 295, MD 201, the Baltimore–Washington Parkway (an unnumbered federally owned expressway operated by the National Park Service), and MD 295.
I-295 opened in pieces. The first section was from the Beltway to S. Capitol Street, and the final section of the route, the three miles (4.8 km) from S. Capitol Street to the Pennsylvania Avenue interchange, opened on August 7, 1964. The final part of the project, the connecting ramps to the 11th Street Bridges, opened the following year.[2] In 1990, a 1.7-mile (2.7 km) section of connecting ramps was built to directly connect I-295 to MD 210 in order to remove the significant traffic flow between the two routes from the segment of the beltway between both interchanges. These ramps are not considered part of the mainline of I-295.
As part of the larger Woodrow Wilson Bridge reconstruction project, the southern terminus of I-295 has been significantly rebuilt. Several new connections have been constructed to link the beltway, MD 210, and I-295 with the new 300-acre (120 ha) National Harbor site on the shore of the Potomac River in Prince George's County, Maryland. One feature of the interchange reconstruction is that accommodations were made for future ramps to proposed high-occupancy vehicle lanes (HOV) on the beltway. This project was completed in stages, starting in 2008 and ending in 2011.
The cancelation of both the remainder of the Southeast Freeway and then the Barney Circle Freeway left no through connections between the 11th Street Bridges and DC 295 north, leading to severe congestion and major traffic routing problems. These missing movements were included when the northern terminus was reconstructed, allowing direct freeway-grade access to and from DC 295 at the 11th Street Bridges as well as providing a through grade-separated north–south route within DC. Project construction began in 2011 and the ramps opened in 2012. I-295 now terminates at the interchange with the 11th Street Bridges. I-695 extends over the 11th Street Bridges and continues along the Southeast Freeway to the interchange with I-395.
Future
The District of Columbia is considering adding reversible HOV lanes to I-295.[3]
^Highway Information Services Division (December 31, 2013). Highway Location Reference. Maryland State Highway Administration. Retrieved September 9, 2012.