This is the last major intersection before the M Street Bridge over Rock Creek, which forms the eastern border of Georgetown.
The section in Georgetown carries heavy commuter traffic because it connects Pennsylvania Avenue with the Key Bridge and Canal Road.
Route 50, the northern terminus of Interstate 395, New Jersey Avenue, and North Capitol Street.
Because the intervening Trinidad neighborhood does not follow the grid pattern, M Street does not emerge again until Bladensburg Road (between 16th and 17th).
About a mile south of the U.S. Capitol, M Street is a major east–west traffic thoroughfare connecting Maine Avenue with Interstate 295.
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.