Interstate 79 - Annual Average Daily Traffic - Interstate Travel Information
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Interstate 79 Annual Average Daily Traffic (AADT)

Photo taken by Shawn De Cesari

State Mileage Cities Junctions
West Virginia 160.52 Charleston, Weston, Clarksburg, Fairmont, Morgantown Interstate 79, Interstate 68
Pennsylvania 182.72* Washington, Pittsburgh, Meadville, Erie Interstate 70, Interstate 70, Interstate 279, Interstate 279, Interstate 76, Interstate 80, Interstate 90
TOTAL 343.24
Source: October 31, 2002 Interstate Route Log and Finders List
* - 3.55 miles on I-70

I-79 Pennsylvania Annual Average Daily Traffic (AADT)

County From: To: AADT Composite
Greene WV state line Exit 1/Mount Morris 17,000
Greene Exit 1/Mount Morris Exit 7/Kirby 17,000
Greene Exit 7/Kirby Exit 14/PA 21 Morrisville Waynesburg 17,000
Greene Exit 14/PA 21 Morrisville Waynesburg Exit 19/PA 221 Ruff Creek 17,000
Greene/ Washington Exit 19/PA 221 Ruff Creek Exit 23/Ten Mile Road 17,000

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County From: To: AADT Composite
Washington Exit 23/Ten Mile Road Exit 30/U.S. 19 Amity Ridge Rd. 17,000
Washington Exit 30/U.S. 19 Amity Ridge Rd. Exit 33/U.S. 40 Laboratory Glyde 17,000
Washington Exit 33/U.S. 40 Laboratory Glyde Exit 34/Interstate 70 East 17,000
Washington Exit 34/Interstate 70 East Exit 20/PA 136 Beau Street 60,000
Washington Exit 20/PA 136 Beau Street Exit 19/U.S. 19 Washington Rd. 59,000
Washington Exit 19/U.S. 19 Washington Rd. Exit 38/Interstate 70 west 59,000
Washington Exit 38/Interstate 70 west Exit 41/Racetrack Road 57,000
Washington Exit 41/Racetrack Road Exit 43/PA 519 Houston 57,000
Washington Exit 43/PA 519 Houston Exit 45 nb/Weavertown Rd. 57,000
Washington Exit 45 nb/Weavertown Rd. Exit 45 sb/McClelland Rd. 57,000
Washington Exit 45 sb/McClelland Rd. Exit 48/Southpointe Blvd. 57,000
Washington/ Allegheny Exit 48/Southpointe Blvd. Exit 54/PA 50 Morgan Bridgeville 62,000
Allegheny Exit 54/PA 50 Morgan Bridgeville Exit 55/PA 50 Washington Pike 62,000
Allegheny Exit 55/PA 50 Washington Pike Exit 57/Main St. Carnegie 75,000
Allegheny Exit 57/Main St. Carnegie Exit 59/I-279 & U.S. 22-30 Pkwy W 75,000
Allegheny Exit 59/I-279 & U.S. 22-30 Pkwy W Exit 60/PA 60 Moon Run 43,000
Allegheny Exit 60/PA 60 Moon Run Exit 64/PA 51 State Av. Coraopolis 43,000
Allegheny Exit 64/PA 51 State Av. Coraopolis Exit 65/Grand Ave Neville Island 46,000
Allegheny Exit 65/Grand Ave Neville Island Exit 66/PA 65 Sewickley Glenfield 46,000
Allegheny Exit 68/Blackburn Rd. Mt. Nebo Exit 72/Interstate 279 south 46,000
Allegheny Exit 72/Interstate 279 south Exit 73/PA 910 Wexford 74,000
Allegheny Exit 73/PA 910 Wexford Exit 75/I-76 & U.S. 19 Warrendale 74,000
Allegheny/
Butler 		Exit 75/I-76 & U.S. 19 Warrendale Exit 78/PA 228 Cranberry 28,000
Butler Exit 78/PA 228 Cranberry Exit 83/PA 528 Evans City 42,000
Butler Exit 83/PA 528 Evans City Exit 85/U.S. 19 Zelienople 28,000
Butler Exit 85/U.S. 19 Zelienople Exit 87/PA 68 Harmony 28,000
Butler Exit 87/PA 68 Harmony Exit 88/Little Creek Road 28,000
Butler Exit 88/Little Creek Road Exit 96/PA 488 Portersville 33,000
Butler Exit 96/PA 488 Portersville Exit 99/U.S. 422 New Castle 26,000
Butler Exit 99/U.S. 422 New Castle Exit 105/PA 108 Slippery Rock 18,000
Butler/
Lawrence/
Mercer 		Exit 105/PA 108 Slippery Rock Exit 113/PA 208 Grove City 18,000
Mercer Exit 113/PA 208 Grove City Exit 116/Interstate 80 18,000
Mercer Exit 116/Interstate 80 Exit 121/U.S. 62 Mercer 18,000
Mercer Exit 121/U.S. 62 Mercer Exit 130/PA 358 Clarks Mill 19,000
Mercer/
Crawford 		Exit 130/PA 358 Clarks Mill Exit 141/PA 285 Cochranton 19,000
Crawford Exit 141/PA 285 Cochranton Exit 147/U.S. 6 & 322 Meadville 19,000
Crawford Exit 147/U.S. 6 & 322 Meadville Exit 154/PA 198 Saegertown 19,000
Crawford Exit 154/PA 198 Saegertown Exit 166/U.S. 6N Edinboro 19,000
Crawford/
Erie 		Exit 166/U.S. 6N Edinboro Exit 174/West Road McKean 23,000
Erie Exit 174/West Road McKean Exit 178/Interstate 90 23,000
Erie Exit 178/Interstate 90 Exit 180/Interchange Road 38,000
Crawford Exit 180/Interchange Road Exit 182/U.S. 20 26th St. Erie 30,000
Crawford Exit 182/U.S. 20 26th St. Erie Exit 183/PA 5 12th St. Erie 30,000
Source: Pennsylvania Traffic Volumes 2002 (Penndot)

Page Updated December 8, 2003.