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| State Route 123 | |||||||||||||
| Length: | 29.27 mi[1][2][3] (47.11 km) | ||||||||||||
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| Formed: | 1940 | ||||||||||||
| South end: |  US 1 at Woodbridge |
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| Major junctions: |
 I-66 near Fairfax SR 7 at Tysons Corner |
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| North end: | Chain Bridge at Washington, DC | ||||||||||||
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>State Route 123 is a primary state highway in the U.S. state of Virginia, forming an arc through the Northern Virginia counties of Arlington, Fairfax, and Prince William, as well as the independent city of Fairfax. Parts of it are known as Ox Road, Maple Avenue, Dolley Madison Boulevard, Gordon Boulevard and Chain Bridge Road. The highway begins at U.S. Route 1 in Woodbridge and ends in Arlington at the District of Columbia boundary on the Chain Bridge.
Route 123 is part of the National Highway System,[citation needed] and passes through the following communities:
In addition to numerous at-grade intersections, Route 123 has interchanges with the following routes:
- Interstate 95
- Fairfax County Parkway (State Route 7100)
- Interstate 66
- State Route 7
- Interstate 495 (Capital Beltway)
- State Route 267
- George Washington Memorial Parkway
SR 123, along with State Route 120, was State Route 25 until the 1933 renumbering and State Route 9 from then until the 1940 renumbering.
Future construction
Fairfax County is considering upgrading the intersection between SR 123 and SR 620 to a full interchange. The designs being considered are diamond, modified diamond, single-point urban interchange (SPUI), and tight SPUI.[4]
References
- ^ 2005 Virginia Department of Transportation Jurisdiction Report - Daily Traffic Volume Estimates - Prince William CountyPDF (1.09 MiB)
- ^ 2005 Virginia Department of Transportation Jurisdiction Report - Daily Traffic Volume Estimates - Fairfax CountyPDF (3.99 MiB)
- ^ 2005 Virginia Department of Transportation Jurisdiction Report - Daily Traffic Volume Estimates - Arlington CountyPDF (187 KiB)
- ^ 123 / Braddock Rd. Interchange Presentation March 4, 2009 Retrieved November 29, 2009
External links
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| < SR 24 | Two‑digit State Routes 1923-1933 |
SR 26 > |
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