Interstate 66 - Exit List

Exit List

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State County Location Mile km Exit Destinations Notes
Virginia Frederick
Middletown 0.0 0.0 1 I-81 – Winchester, Roanoke Westbound exit and eastbound entrance, and signed as exits 1A (south, Roanoke) and 1B (north, Winchester)
Warren
Front Royal 6.4 10.3 6 US 340 / US 522 – Winchester, Front Royal
12.9 20.8 13 SR 79 to SR 55 – Linden
Fauquier
18.5 29.8 18 SR 688 – Markham
23.3 37.5 23 US 17 north / SR 55 west – Delaplane, Paris West end of US 17/SR 55 overlap
Marshall 27.0 43.5 27 SR 55 east / SR 647 – Marshall East end of SR 55 overlap
28.3 45.5 28 US 17 south – Warrenton, Fredericksburg
The Plains 31.3 50.4 31 SR 245 / Old Tavern Road
Prince William
Haymarket 40.5 65.2 40 US 15 – Leesburg, Haymarket
Gainesville 43.1 69.4 43 US 29 – Gainesville, Charlottesville Signed as exits 43A (south, Gainesville) and 43B (north, Charlottesville)
Manassas 44.5 71.6 44 SR 234 south (Prince William Parkway) West end of SR 234 overlap
47.3 76.1 47
SR 234 north / SR 234 Bus. (Sudley Road) – Manassas
East end of SR 234 overlap; signed as exits 47A (Manassas) and 47B (Business) westbound
Yorkshire 48.8 78.5 Rest Area
Fairfax
Centreville 52.1 83.8 52 US 29 to SR 28 south – Centreville
53.2 85.6 53 SR 28 (Sully Road) – Dulles Airport, Centreville No access to SR 28 south from I-66 east; westbound exits signed 53A (south) and 53B (north)
Fair Lakes 54.9 88.4 SR 645 (Stringfellow Road) Eastbound left entrance open only to HOV-2+ traffic weekdays from 5:30 to 9:30 a.m. Westbound left exit open all other times; exit restricted to HOV-2+ traffic weekdays from 3:00 to 7:00 p.m.
55.9 90.0 55 SR 286 (Fairfax County Parkway) – Springfield, Reston, Herndon Signed as exits 55A (south, Springfield, Reston) and 55B (north, Herndon)
Fairfax 57.1 91.9 SR 6751 (Monument Drive) – Fair Lakes, Fairfax Eastbound left entrance open only to HOV-2+ traffic weekdays from 5:30 to 9:30 a.m. Westbound left exit open all other times; exit restricted to HOV-2+ traffic weekdays from 3:00 to 7:00 p.m.
58.1 93.5 57 US 50 – Winchester, Fairfax, Fair Oaks Signed as exits 57A (east, Fair Oaks) and 57B (west, Fairfax, Winchester)
60.1 96.7 60 SR 123 – Fairfax, Vienna
Vienna 62.5 100.6 62 SR 243 (Nutley Street) – Fairfax, Vienna
Dunn Loring 65.1 104.8 64 I-495 (Capital Beltway) – Richmond, Baltimore Left and right exit eastbound (left from HOV lane); no westbound exit to I-495 north and eastbound entrance from I-495 south; signed as exits 64A (south) and 64B (north) eastbound
Tysons Corner 66.0 106.2 66 SR 7 (Leesburg Pike) – Falls Church, Tysons Corner Signed as exits 66A (east, Falls Church) and 66B (west, Tysons Corner) westbound
Falls Church 66.6 107.2 67 SR 267 west to I-495 north to Dulles Toll Road – Dulles Airport Westbound exit and eastbound entrance
City of Arlington
67.8 109.1 68 Westmoreland Street Eastbound exit and westbound entrance
68.4 110.1 69 US 29 (Lee Highway) / SR 237 (Washington Boulevard) / Sycamore Street
70.5 113.5 71 SR 120 (Glebe Road) / SR 237 (Fairfax Drive)
72.1 116.0 72 US 29 south (Lee Highway) / Spout Run Parkway Eastbound exit and westbound entrance
73.1 117.6 73 US 29 (Key Bridge) – Rosslyn No eastbound exit to US 29 south and westbound entrance from US 29 north
74.2 119.4 75 SR 110 south – Pentagon, Alexandria, Pentagon City, Crystal City Eastbound exit and westbound entrance
74.5 119.9 76 US 50 west (Arlington Boulevard) / George Washington Memorial Parkway West end of US 50 overlap; westbound exit and eastbound entrance
District of Columbia Potomac River
Theodore Roosevelt Bridge
VA–DC border
City of Washington
Independence Avenue
US 50 east (Constitution Avenue) – Downtown East end of US 50 overlap; eastbound exit and westbound entrance
E Street Expressway east
Rock Creek Parkway (via 27th Street NW) Eastbound exit and westbound entrance
Pennsylvania Avenue NW Eastbound exit only
US 29 south (Whitehurst Freeway) to Canal Road NW / M Street NW Northern terminus; Westbound exit and eastbound entrance
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  • Concurrency terminus
  • Closed/Former
  • HOV
  • Incomplete access
  • ETC only
  • Unopened

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