Interstate 66 - Annual Average Daily Traffic - Interstate Travel Information
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Interstate 66 Annual Average Daily Traffic (AADT)

Photo taken by Jeff Royston Photo taken by Jeff Royston

State Mileage Cities Junctions
Virginia 74.80 Front Royal, Manassas, Fairfax, Vienna, Falls Church, Arlington Interstate 81, Interstate 495
District of Columbia 1.48 Washington None
TOTAL 76.28
Source: October 31, 2002 Interstate Route Log and Finders List

Interstate 66 Virginia Annual Average Daily Traffic

County From: To: AADT Composite
Warren Interstate 81 Exit 6/U.S. 340/522 24,000
Warren Exit 6/U.S. 340/522 Exit 13/Virginia 79 24,000
Warren/Faquier Exit 13/Virginia 79 Exit 18/SSR 688 31,000
Faquier Exit 18/SSR 688 Exit 23/U.S. 17 34,000
Faquier Exit 23/U.S. 17 Exit 27/Virginia 55 40,000
Faquier Exit 27/Virginia 55 Exit 28/U.S. 17 40,000
Faquier Exit 28/U.S. 17 Exit 31/Virginia 245 33,000
Faquier/Prince William Exit 31/Virginia 245 Exit 40/U.S. 15 33,000
Prince William Exit 40/U.S. 15 Exit 43/U.S. 29 44,000
Prince William Exit 43/U.S. 29 Exit 44/Virginia 234 76,000

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Prince William Exit 44/Virginia 234 Exit 47/VA 234/VA 234 Business 79,000
Prince William/Fairfax Exit 47/VA 234/VA 234 Business Exit 52/U.S. 29 near Centreville 123,000
Fairfax Exit 52/U.S. 29 near Centreville Exit 53/Virginia 28/Solly Road 116,000
Fairfax Exit 53/Virginia 28/Solly Road Exit 55/SSR 7100/Fairfax County Pkwy. 126,000
Fairfax Exit 55/SSR 7100/Fairfax County Pkwy. Exit 57/U.S. 50 126,000
Fairfax Exit 57/U.S. 50 Exit 60/VA 123/Chain Bridge Road 179,000
Fairfax Exit 60/VA 123/Chain Bridge Road Exit 62/VA 243/Nutley Street 188,000
Fairfax Exit 62/VA 243/Nutley Street Exit 64/Interstate 495 181,000
Fairfax Exit 64/Interstate 495 Exit 66/VA 7/Leesburg Pike 75,000
Fairfax Exit 66/VA 7/Leesburg Pike Exit 67/VA 267/Dulles Access Road 75,000
Fairfax/Arlington Exit 67/VA 267/Dulles Access Road Westmoreland Street 131,000
Arlington Westmoreland Street Sycamore Street 107,000
Arlington Sycamore Street VA 237/Fairfax Drive 114,000
Arlington VA 237/Fairfax Drive VA 120/Glebe Road 86,000
Arlington VA 120/Glebe Road Exit 72/U.S. 29/Lee Hwy./Cherrydale 102,000
Arlington Exit 72/U.S. 29/Lee Hwy./Cherrydale U.S. 29 near 20th Road 86,000
Arlington U.S. 29 near 20th Road U.S. 29/Lynn St./Rosslyn 71,000
Arlington U.S. 29/Lynn St./Rosslyn Roosevelt Bridge/D.C. line 100,000
Source: Virginia Department of Transportation 2002 AADT

Interstate 66 District of Columbia Annual Average Daily Traffic

From To AADT Composite
Virginia state line U.S. 50/Constitution Avenue 100,000
Whitehurst Freeway
U.S. 29/Key Bridge Interstate 66 west 42,200
Source: 2000 Traffic Volumes (District Division of Transportation - Traffic Services Division, Washington, D.C.)

Page Updated July 19, 2003