List of Interstate Highways in Washington, D.C.
| Interstate Highways of the District of Columbia | |
|---|---|
| |
| System information | |
| Formed | August 14, 1957[1] |
| Highway names | |
| Interstates | Interstate X (I-X) |
| System links | |
In
Interstate Highways
and four current auxiliary Interstates. In addition, two proposed primary Interstates and two proposed auxiliary Interstates were cancelled in whole or in part.
I-395 (the Southwest Freeway), a major commuter route extending from New York Avenue to the Beltway and Interstate 95 in Springfield, Virginia, via I-695 (the Southeast Freeway). The Inner Loop
was a proposed network of freeways in the city center; however, only portions of it were ever built. Today, the "inner loop" is most frequently used to describe the inside lanes of 495. That is those that travel clockwise around Washington.
Interstate Highways
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
 I-66
|
1.48[2] | 2.38 | Arlington, VA |
Whitehurst Freeway (US 29) in Foggy Bottom
|
1977 | current | Potomac River Freeway
| |
 I-70S
|
— | — | — | — | — | 1975 | Part of the planned North Central Freeway; Maryland portion was renamed I-270 in 1975 | |
 I-95
|
— | — | — | — | 1961 | 1977 | Plans to run I-95 through downtown Washington via the planned Inner Loop and North Central Freeway were scrapped, prompting I-95 to replace I-495 along the eastern half of the Capital Beltway. Portions built were re-designated I-395. | |
| I-95
|
0.11[2][3] | 0.18 | Woodrow Wilson Bridge (VA–DC–MD border) | 1977 | current | No boundary crossing signage; concurrent with I-495 since 1991 | ||
 I-195
|
1.90 | 3.06 | I-395) in Southwest Federal Center |
New York Avenue NW (US 50) in Mount Vernon Square | proposed | — | Will replace I-395 through the Third Street Tunnel[4] | |
 I-266
|
1.79 | 2.88 | — | — | — | 1972 | Proposed loop route of I-66 between freeway revolts;" D.C. officials proposed designating the route Interstate 66N, a move opposed by the AASHTO.[citation needed ]
| |
 I-270
|
— | — | — | — | 1975 | 1977 | Part of the planned North Central Freeway; Maryland portion was known as I-70S until in 1975 | |
 I-295
|
7.25[5] | 11.67 | I-295) in Oxon Hill, MD |
Anacostia Freeway ( I-695) in Anacostia
|
1964 | current | Anacostia Freeway (south of the 11th Street Bridges) | |
 I-395
|
3.48[5] | 5.60 | Arlington, VA |
New York Avenue NW (US 50) in Mount Vernon Square | 1977 | current | Southwest Freeway, 3rd Street Tunnel
| |
 I-495
|
0.11[3] | 0.18 | Woodrow Wilson Bridge (VA–DC–MD border) | 1991 | current | Previously existed 1961–1977, reinstated 1991; no boundary crossing signage; concurrent with I-95 | ||
 I-695
|
1.39[5] | 2.24 | I-395) in Southwest Federal Center |
1961 | current | Southeast Freeway, 11th Street Bridges ; signage bearing I-695 shields were added in 2011; will be replaced by an extension of I-395
| ||
| ||||||||
See also
U.S. Roads portal
References
- American Association of State Highway Officials. August 14, 1957. Retrieved November 22, 2010.
- ^ a b "Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways". Federal Highway Administration. Retrieved January 11, 2015.
- ^ a b "Miscellaneous Interstate System Facts". Federal Highway Administration. April 6, 2011. Retrieved August 28, 2013.
- ^ Special Committee on U.S. Route Numbering (November 2020). "2020 Annual (Fall) Meeting Report to the Council on Highways and Streets" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original (PDF) on January 10, 2021. "USRN Applications" (PDF). Archived from the original (PDF) on January 10, 2021.
- ^ a b c "Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways". Federal Highway Administration. Retrieved January 11, 2015.