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Interstate 99 Annual Average Daily Traffic (AADT)

Photo by Jeff Royston

State Mileage Cities Junctions
Pennsylvania 53.00 Bedford, Altoona, Bald Eagle Interstate 70/76/Pennsylvania Turnpike
Source: October 31, 2002 Route Log and Finder List

I-99 Pennsylvania Annual Average Daily Traffic (AADT)

County From: To: AADT Composite
Bedford Exit 1/U.S. 220B & I-70-76 Exit 3/PA 56 Johnstown 15,000
Bedford Exit 3/PA 56 Johnstown Exit 7/PA 869 St. Clairsville 8,500
Bedford Exit 7/PA 869 St. Clairsville Exit 10/Blue Knob S.P. 8,500
Bedford/ Blair Exit 10/Blue Knob S.P. Exit 15/Claysburg King 8,500
Blair Exit 15/Claysburg King Exit 23/PA 36 & 164 E. Freedom 8,500
Blair Exit 23/PA 36 & 164 E. Freedom Exit 28/U.S. 22 Holidaysburg 16,000
Blair Exit 28/U.S. 22 Holidaysburg Exit 31/Plank Road 33,000

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Blair Exit 31/Plank Road Exit 32/PA 36 Frankstown Road 37,000
Blair Exit 32/PA 36 Frankstown Road Exit 33/17th Street 37,000
Blair Exit 33/17th Street Exit 39/PA 764 south 21,000
Blair Exit 39/PA 764 south Exit 41/PA 865 north Bellwood 21,000
Blair Exit 41/PA 865 north Bellwood Exit 45/Tipton Grazierville 13,000
Blair Exit 45/Tipton Grazierville Exit 48/PA 453 Tyrone 13,000
Blair Exit 48/PA 453 Tyrone Exit 52/PA 350 Bald Eagle 11,000
Future Interstate 99 - U.S. 322 & Pennsylvania 26
Centre Business U.S. 322 Atherton St. Waddle Road 11,000
Centre Waddle Road split with U.S. 322 east 25,000
Centre merge with U.S. 322 west merge with Pennsylvania 26 north 9,000
Centre merge with Pennsylvania 26 north PA 550 Bellefone 11,000
Centre PA 550 Bellefone merge onto Interstate 80 east 8,400
Future Interstate 80 overlap
Centre/ Clinton Exit 161/U.S. 220 (Fut. I-99) State College Exit 173/PA 64 Lamar 23,000
Clinton Exit 173/PA 64 Lamar Exit 178/U.S. 220 North Lock Haven 23,000
Future Interstate 99 - U.S. 220 Mill Hall to Williamsport
Clinton Freeway begin/PA 447 Salona PA 150 Mill Hall 6,000
Clinton PA 150 Mill Hall PA 120 Lock Haven 17,000
Clinton PA 120 Lock Haven McElhattan 16,000
Clinton McElhattan PA 150 Avis 12,000
Clinton PA 150 Avis PA 44 north Waterville 16,000
Clinton/ Lycoming PA 44 north Waterville Thomas Street Jersey Shore 20,000
Lycoming PA 44 south Jersey Shore End freeway/Brandt Drive 23,000
Lycoming Begin freeway/4th Street Reach Road Williamsport 21,000
Lycoming Reach Road Williamsport I-180 east, U.S. 220 north & U.S. 15 south 23,000
Future Interstate 99 - U.S. 15 Williamsport to New York State line
Lycoming I-180 east, U.S. 220 north & U.S. 15 south 3rd Street Williamsport 25,000
Lycoming 3rd Street Williamsport Old U.S. 15/Foy Ave. Williamsport 25,000
Lycoming Old U.S. 15/Foy Ave. Williamsport PA 973 Perryville Cogan Station 20,000
Lycoming PA 973 Perryville Cogan Station PA 14 north Trout Run 18,000
Lycoming PA 14 north Trout Run End freeway/Miller Hill Road 15,000
Lycoming Miller Hill Road PA 184 Steam Valley 15,000
Lycoming PA 184 Steam Valley Begin freeway/PA 284 15,000
Lycoming PA 284 English Center Buttonwood 15,000
Lycoming/ Tioga Buttonwood PA 414 Liberty 15,000
Tioga PA 414 Liberty End freeway/Main St. Blossburg 15,000
Tioga Main Street Blossburg PA 660 west 15,000
Tioga PA 660 west Begin freeway/U.S. 15 Business north 14,000
Tioga U.S. 15 Business north Mansfield U.S. 6 Towanda Wellsboro 10,000
Tioga U.S. 6 Towanda Wellsboro U.S. 15 Business south Mansfield 10,000
Tioga U.S. 15 Business south Mansfield End freeway/PA 287 Tioga 12,000
Tioga PA 287 Tioga PA 328 Jackson Summit 15,000
Tioga PA 328 Jackson Summit PA 49 Elkland 12,000
Tioga PA 49 Elkland NY state line 12,000
Source: Pennsylvania Traffic Volumes 2002 (Penndot)

Future Interstate 99 New York Annual Average Daily Traffic (AADT)

County From: To: AADT Composite
Steuben PA state line (mp 0.00) CR 5 Presho (mp 6.34) 10,900
Steuben CR 5 Presho (mp 6.34) NY 417 west Addison (mp 8.12) 11,700
Steuben NY 417 west Addison (mp 8.12) Gang Mills int. (mp 11.14) 15,500
Steuben Gang Mills interchange (mp 11.14) I-86 & NY 17 / U.S. 15 north end
Painted Post (mp 12.59) 		35,800
Source: NYSDOT 2002 Traffic Volume Report

Page Updated December 8, 2003