runs west-to-east from North Capitol Street to Florida Avenue between 6th and 7th, where it terminates at the gates of Gallaudet University. Along the way, it uses an overpass to avoid the Union Station rail yard. Because the intervening Trinidad neighborhood does not follow the grid pattern, M Street does not emerge again until Bladensburg Road (between 16th and 17th). This two-way stretch dead-ends after intersecting with Maryland Avenue (where 26th Street would be), because the remaining land between that intersection and the Anacostia River is occupied by the United States National Arboretum and Langston Golf Course. The portion of Washington across the Anacostia follows its own variant of the grid pattern, so while there is no M Street NE, the Deanwood neighborhood of Anacostia does have a Meade Street NE in the location where M Street would have re-emerged. M Street SW/SE About a mile south of the U.S. Capitol, M Street is a major east-west traffic thoroughfare connecting Maine Avenue with Interstate 295. The Potomac River prevents M Street from extending farther west than 6th Street/Maine Avenue. Likewise, the Anacostia River limits M Street SE east of 11th to being a named on-ramp for I-295 (the 11th Street Bridges to the immediate south and the Southeast Freeway to the immediate north), Water Street SE (home of several boating clubs), and Pennsylvania Avenue SE at the John Philip Sousa Bridge before terminating. The most prominent intersection on M Street between those points is with South Capitol Street. M Street runs along the northern edge of the Washington Navy Yard (between 1st and 11th) and near Nationals Park, between 1st and South Capitol. Another segment of M Street SE continues east of the Anacostia River. Beginning at the Anacostia Freeway (DC-295, roughly where 29th Street would be), it runs diagonally southeast for two blocks, merges with Anacostia Road for one block, then straightens out for two blocks before terminating at 34th Street SE. Its route is blocked by Massachusetts Avenue SE and Fort Dupont Park. References External links Dupont Circle Georgetown (Washington, D.C.) Streets in Washington, D.C. Shopping districts and streets in Washington, D.C.