Route 110, consisting of State Route 110 (SR 110) and Interstate 110 (I-110), is a state and auxiliary Interstate Highway in the Los Angeles metropolitan area of the US state of California. The entire route connects San Pedro and the Port of Los Angeles with Downtown Los Angeles and Pasadena. The southern segment from San Pedro to I-10 in downtown Los Angeles is signed as I-110, while the northern segment to Pasadena is signed as SR 110. The entire length of I-110, as well as SR 110 south of the Four Level Interchange with US Route 101 (US 101), is the Harbor Freeway, and SR 110 north from US 101 to Pasadena is the historic Arroyo Seco Parkway, the first freeway in the western United States.
The Capital Beltway is a 64-mile (103 km) auxiliary Interstate Highway in the Washington metropolitan area that surrounds Washington, D.C., the capital of the United States, and its inner suburbs in adjacent Maryland and Virginia. It is the basis of the phrase "inside the Beltway", used when referring to issues dealing with US federal government and politics. The highway is signed as Interstate 495 (I-495) for its entire length, and its southern and eastern half runs concurrently with I-95.
Interstate 295 (I-295) also known as the Anacostia Freeway, is a six-mile (9.7 km) auxiliary Interstate Highway in the US state of Maryland and in Washington, D.C.. It connects I-95/I-495 and Maryland Route 210 near the Potomac River to I-695 and District of Columbia Route 295 (DC 295) in the Anacostia neighborhood of Washington, D.C.
The Rock Creek and Potomac Parkway, informally called the Rock Creek Parkway, is a parkway maintained by the National Park Service as part of Rock Creek Park in Washington, D.C. It runs next to the Potomac River and Rock Creek in a generally north–south direction, carrying four lanes of traffic from the Lincoln Memorial and Arlington Memorial Bridge north to a junction with Beach Drive near Connecticut Avenue at Calvert Street, N.W., just south of the National Zoological Park. During rush hours, the parkway is converted to one-way traffic corresponding to the peak direction of travel: southbound in the morning and northbound in the afternoon.
The George Washington Memorial Parkway, colloquially the G.W. Parkway, is a 25-mile-long (40 km) limited-access parkway that runs along the south bank of the Potomac River from Mount Vernon, Virginia, northwest to McLean, Virginia, and is maintained by the National Park Service (NPS). It is located almost entirely in Northern Virginia, except for a short portion of the parkway northwest of the Arlington Memorial Bridge that passes over Columbia Island in Washington, D.C.
The Francis Scott Key Bridge, more commonly known as the Key Bridge, is a six-lane reinforced concrete arch bridge carrying U.S. Route 29 (US 29) across the Potomac River between the Rosslyn neighborhood of Arlington County, Virginia, and the Georgetown neighborhood of Washington, D.C. Completed in 1923, it is Washington's oldest surviving road bridge across the Potomac River.
The Clara Barton Parkway is a parkway in the U.S. state of Maryland and the District of Columbia. The highway runs 6.8 miles (10.9 km) from MacArthur Boulevard in Carderock, Maryland, east to Canal Road at the Chain Bridge in Washington. The Clara Barton Parkway is a two- to four-lane parkway that parallels the Potomac River and the Chesapeake and Ohio Canal (C&O) in southwestern Montgomery County, Maryland, and the far western corner of Washington. The parkway provides access to the communities of Cabin John and Glen Echo and several units of the Chesapeake and Ohio Canal National Historical Park. The Maryland portion of the George Washington Memorial Parkway was constructed from Carderock past Interstate 495 (I-495) to Glen Echo in the early to mid-1960s. The parkway was proposed to continue west to Great Falls and east to Georgetown. However, these proposals never came to fruition and the parkway was extended only to the Chain Bridge in the early 1970s. The Maryland portion of the George Washington Memorial Parkway was renamed in 1989 for Clara Barton, the founder of the American Red Cross, and whose original headquarters is located in Glen Echo.
The Dumbarton Bridge, also known as the Q Street Bridge and the Buffalo Bridge, is a historic masonry arch bridge in Washington, D.C.
The Inner Loop was two planned freeways around downtown Washington, D.C. The innermost loop would have formed an oval centered on the White House, with a central freeway connecting the southern segment to the northern segment and then continuing on to Interstate 95. Interstate 95 would have met Interstate 66, Interstate 295, Interstate 695, and US 50 while traversing the Inner Loop. A second loop was an arc across the northern section of the city, beginning at East Capitol Street at the Anacostia River and using the Missouri Avenue NW and Nebraska Avenue NW commercial corridors to terminate in Georgetown.
U.S. Route 29 (US 29) enters Washington, D.C., via the Key Bridge from Arlington County, Virginia, and exits at Silver Spring, Maryland. It predominantly follows city surface streets, although the portion of the route from the Key Bridge east to 26th Street Northwest is an elevated highway better known as the Whitehurst Freeway. The freeway, called the city's most ridiculed bridge in 1989, has survived several proposals for its demolition.
The P Street Bridge or Lauzun's Legion Bridge is a 336-foot (102 m) concrete arch bridge that conveys P Street across Rock Creek and Rock Creek Park between the Georgetown and Dupont Circle neighborhoods of Northwest Washington, D.C. Built in 1935, it replaced an older iron truss bridge.
The M Street Bridge, also known as the M Street Overpass, carries M Street across Rock Creek and the Rock Creek and Potomac Parkway. It lies between the neighborhoods of Georgetown and Foggy Bottom in Northwest Washington, D.C. The non-arched design of the bridge contrasts with that of all the other bridges rising over the parkway.
The Pennsylvania Avenue Bridge conveys Pennsylvania Avenue across Rock Creek and the adjoining Rock Creek and Potomac Parkway, between the neighborhoods of Georgetown and Foggy Bottom in Northwest Washington, D.C. Pennsylvania Avenue terminates at M Street immediately west of the bridge.
The Boulder Bridge is a historic bridge located in the Washington, D.C. portion of Rock Creek Park, an urban national park listed on the National Register of Historic Places.
The Wilmington Rail Viaduct is a series of fills and bridges, about 4 miles (6.4 km) long, that carries the Northeast Corridor through the city of Wilmington, Delaware, above street level. Constructed between 1902 and 1908, the structure consists principally of fills supported by heavy stone retaining walls, punctuated with plate girder bridges over streets, and augmented by a few sections of brick arch viaduct. Its construction is typical of the Pennsylvania Railroad's architectural practices at the time, and the viaduct has been documented by the Historic American Engineering Record and listed on the National Register of Historic Places. Built by the Pennsylvania Railroad (PRR) as part of a series of grade crossing eliminations along the Northeast Corridor, the elevation of the rail line necessitated several other changes to rail infrastructure in Wilmington, including the construction of the Wilmington Shops at the east end of the viaduct, and the construction of the Wilmington Station and adjacent Pennsylvania Railroad Office Building along the elevated right-of-way.
The Godey Lime Kilns, also known as Washington Lime Kilns, are an historical industrial building ruin, located beside the interchange of Rock Creek Parkway and Whitehurst Freeway, near the western end of L Street, Northwest, Washington, D.C., in the Foggy Bottom neighborhood.
The Shoreham Hill Bridge is a bridge carrying the Rock Creek and Potomac Parkway across Rock Creek in Washington, DC. It is the most upstream of three bridges where the Rock Creek and Potomac Parkway switches from one side of the river to the other, the others being the bridge near P Street and the L Street Bridge.
The L Street Bridge is a bridge carrying the Rock Creek and Potomac Parkway over Rock Creek in Washington, D.C. It is the most downstream of three bridges where the Parkway switches from one side of the river to the other, the others being the bridge near P Street and the Shoreham Hill Bridge. Despite its name, the bridge does not carry or cross L Street, but it is adjacent to L Street's western terminus.
The Rock Creek and Potomac Parkway Bridge near P Street is a bridge carrying the Rock Creek and Potomac Parkway across Rock Creek in Washington, DC. It is the middle of three bridges where the Rock Creek and Potomac Parkway switches from one side of the river to the other, the others being the L Street Bridge and the Shoreham Hill Bridge. The bridge is near the site of a historical river ford used by French soldiers traveling to Yorktown in 1781. The bridge is reinforced concrete faced in mica schist.
