Road Information

Interstate 79 in Pennsylvania Total Mileage in State: 183 miles
Northern End: At Bayfront Pkwy, in Erie
Southern End: At West Virginia state line
Mileage covered in Photos: 170 miles
Counties covered in Photos: Greene, Washington, Allegheny, Butler, Lawrence, Mercer, Crawford, Erie
Major Junctions in Photos: I-70, in Washington
I-376, near Carnegie
I-76 (PA Turnpike), in Warrendale
I-80, near Mercer
I-90, in McKean
Control Cities in Photos: Washington, Carnegie, Warrendale, Cranberry Twp, Mercer, Meadville, Erie

Northbound

West Virginia border to Interstate 376
   

Pennsylvania welcome sign as Interstate 79 North enters the Keystone State from West Virginia.  (Photo taken 7/25/13).

Interstate 79 North at Exit 1: Mount Morris  (Photo taken 7/25/13).

Interstate 79 North at mile marker 2.  (Photo taken 7/25/13).

Interstate 79 North at the Welcome Center / Rest Area / Weigh Station located near mile marker 6.  (Photo taken 7/25/13).

Interstate 79 North at Exit 7: Kirby / Garards Fort  (Photo taken 7/25/13).

Interstate 79 North assurance shield north of Exit 7.  (Photo taken 7/25/13).

The speed limit starts out at 65 mph on Interstate 79 North, which is standard on most rural Interstates in Pennsylvania.  (Photo taken 7/25/13).

Mileage/distance sign on Interstate 79 North. It's 8 miles to Waynesburg and 28 miles to Washington, PA.  (Photo taken 7/25/13).

Interstate 79 North at mile marker 11.  (Photo taken 7/25/13).

Interstate 79 North at Exit 14: PA 21 - Masontown / Waynesburg  (Photo taken 7/25/13).

Mileage sign north of Exit 14. It's 21 miles to Washington, PA and 51 miles to Pittsburgh.  (Photo taken 7/25/13).

Interstate 79 North at mile marker 16.  (Photo taken 7/25/13).

Interstate 79 North at Exit 19: PA 221 / To US 19 - Ruff Creek / Jefferson  (Photo taken 7/25/13).

Interstate 79 North at mile marker 22.  (Photo taken 7/25/13).

Interstate 79 North at Exit 23: Marianna / Prosperity  (Photo taken 7/25/13).

Interstate 79 North at mile marker 26.  (Photo taken 7/25/13).

Interstate 79 North at mile marker 29.  (Photo taken 7/25/13).

Interstate 79 North at Exit 30: US 19 - Amity / Lone Pine  (Photo taken 7/25/13).

At mile marker 31, the speed limit decreases to 55 mph as we near the interchange of Interstate 70.  (Photo taken 7/25/13).

A little further ahead, the speed limit decreases to 40 mph in preparation to go down a steep grade with the junction of Interstate 70 at the bottom of it. Note that since this photo was taken, this interchange has been rebuilt.  (Photo taken 7/25/13).

This warning sign alerts trucks that a 5% grade lies ahead, which lasts for 1 1/2 miles. At the bottom is the junction of Interstate 70. At the time this photo was taken, this poorly designed interchange contained a sharp curve at the bottom of it.  (Photo taken 7/25/13).

Interstate 79 North at Exit 33: US 40 - Laboratory  (Photo taken 7/25/13).

Starting down the grade, these overhead signs show that you should be in the left lane to remain on Interstate 79 North via Interstate 70 West.  (Photo taken 7/25/13).

This overhead sign shows the old design of the interchange, with a sharp right curve at the bottom of the grade to remain on Interstate 79 North.  (Photo taken 7/25/13).

Interstate 79 North at Exit 34: Interstate 70 East - New Stanton  (Photo taken 7/25/13).

Here we see the infamous 25 mph curve of the old interchange. The new interchange was built to eliminate this sharp curve, keeping I-79's traffic elevated over I-70 and feeding it into I-70 with a mild curve to the left.  (Photo taken 7/25/13).

Dual Interstate 79 North / Interstate 70 West assurance shields. This concurrency lasts roughly 4 miles before I-79 departs to the north via Exit 18 on I-70.  (Photo taken 7/25/13).

Take any of the next 5 exits to Washington, PA.  (Photo taken 7/25/13).

This sign lists the distances to the three upcoming exits to Washington.  (Photo taken 7/25/13).

Interstate 79 North / Interstate 70 West at Exit 20: PA 136 - Beau Street. As you can see from the exit number, I-70's mileage takes precedence during this duplex.  (Photo taken 7/25/13).

Interstate 79 North / Interstate 70 West at Exit 19B: US 19 North - Murtland Avenue  (Photo taken 7/25/13).

Interstate 79 North / Interstate 70 West at Exit 19A: US 19 South - Murtland Avenue  (Photo taken 7/25/13).

Interstate 79 North / Interstate 70 West approaching Exit 18 - 1/2 mile.  (Photo taken 7/25/13).

Interstate 79 North / Interstate 70 West at Exit 18: Interstate 79 North - Pittsburgh  (Photo taken 7/25/13).

Standalone Interstate 79 North assurance shield just north of the end of its concurrency with Interstate 70.  (Photo taken 7/25/13).

Interstate 79 North at Exit 40: Meadow Lands  (Photo taken 7/25/13).

Interstate 79 North at Exit 41: Race Track Road  (Photo taken 7/25/13).

Interstate 79 North at Exit 43: PA 519 - Houston / Eighty Four  (Photo taken 7/25/13).

Interstate 79 North at mile marker 43.  (Photo taken 7/25/13).

Interstate 79 North at Exit 45: To PA 980 - Canonsburg  (Photo taken 7/25/13).

Mileage sign north of Exit 45. It's 8 miles to Bridgeville and 21 miles to Pittsburgh.  (Photo taken 7/25/13).

Interstate 79 North at Exit 48: Southpointe / Hendersonville  (Photo taken 7/25/13).

Interstate 79 North at the Rest Area / Weigh Station located near mile marker 50.  (Photo taken 7/25/13).

Interstate 79 North at mile marker 51.  (Photo taken 7/25/13).

Interstate 79 North at Exit 54: PA 50 - Bridgeville  (Photo taken 7/25/13).

Interstate 79 North at Exit 55: Heidelberg / Kirwan Heights  (Photo taken 7/25/13).

A closer view of the off ramp for Exit 55.  (Photo taken 7/25/13).

Interstate 79 North at Exit 57: Carnegie  (Photo taken 7/25/13).

Interstate 79 North approaching Exit 59A - 1 mile.  (Photo taken 7/25/13).

Interstate 79 North at mile marker 57.  (Photo taken 7/25/13).

Interstate 79 North at Exit 59A: Interstate 376 East - Pittsburgh  (Photo taken 7/25/13).

Interstate 79 North at Exit 59B: Interstate 376 West - Airport  (Photo taken 7/25/13).

Interstate 279 to Northern Terminus

Speed limit sign near mile marker 72. Speed Limit - 55 mph.  (Photo taken 9/5/15).

Interstate 79 North assurance shield near mile marker 72.  (Photo taken 9/5/15).

Interstate 79 North at Exit 73: PA 910 - Wexford  (Photo taken 9/5/15).

A closer view of the off ramp for Exit 73.  (Photo taken 9/5/15).

Just north of Exit 73, the speed limit finally increases to 65 mph.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 74.  (Photo taken 9/5/15).

Interstate 79 North at Exit 75: To US 19 South - Warrendale  (Photo taken 9/5/15).

This sign lists the distances to the two upcoming exits to Cranberry Twp.  (Photo taken 9/5/15).

Take Exit 78 to Seven Fields.  (Photo taken 9/5/15).

Interstate 79 North at Exit 76: US 19 North - Cranberry  (Photo taken 9/5/15).

Approaching the PA Turnpike interchange, this sign warns that vehicles over 13'6" in height are prohibited on Interstate 76 (PA Turnpike).  (Photo taken 9/5/15).

Interstate 79 North at Exit 77: Interstate 76 / PA Turnpike - Youngstown, OH / Harrisburg  (Photo taken 9/5/15).

Interstate 79 North as it enters Butler County.  (Photo taken 9/5/15).

Interstate 79 North at Exit 78: PA 228 - Cranberry / Mars  (Photo taken 9/5/15).

Interstate 79 North assurance shield just beyond Exit 78.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 79.  (Photo taken 9/5/15).

Interstate 79 North at the Weigh Station located at mile marker 79.8.  (Photo taken 9/5/15).

This sign warns that all trucks over 10 tons headed to Evans City should use Exit 87, NOT Exit 83.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 82.  (Photo taken 9/5/15).

Interstate 79 North at Exit 83: PA 528 - Evans City  (Photo taken 9/5/15).

Take either of the next two exits to Zelienople.  (Photo taken 9/5/15).

Interstate 79 North: Road view from mile marker 85.  (Photo taken 9/5/15).

Take Exit 87 to Harmony Historic District.  (Photo taken 9/5/15).

Interstate 79 North at Exit 87: PA 68 - Zelienople  (Photo taken 9/5/15).

Interstate 79 North at Exit 88: Little Creek Rd  (Photo taken 9/5/15).

Interstate 79 North at mile marker 90.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 91.  (Photo taken 9/5/15).

Interstate 79 North at Exit 96: PA 488 - Portersville / Prospect  (Photo taken 9/5/15).

A close-up view of an Interstate 79 North assurance shield just north of Exit 96.  (Photo taken 9/5/15).

Take Exit 99 to Moraine State Park and Living Treasures Animal Park.  (Photo taken 9/5/15).

Interstate 79 North at Exit 99: US 422 - New Castle / Butler  (Photo taken 9/5/15).

Mileage sign north of Exit 99. It's 26 miles to Mercer and 86 miles to Erie.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 101.  (Photo taken 9/5/15).

Take Exit 105 to Slippery Rock University.  (Photo taken 9/5/15).

Interstate 79 North at Exit 105: PA 108 - Slippery Rock  (Photo taken 9/5/15).

Another mileage sign on Interstate 79 North. It's 7 miles to Grove City, 14 miles to Mercer, and 77 miles to Erie.  (Photo taken 9/5/15).

Interstate 79 North at the Rest Area / Weigh Station located near mile marker 107.  (Photo taken 9/5/15).

Another Interstate 79 North assurance shield.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 108.  (Photo taken 9/5/15).

Interstate 79 North as it enters Mercer County.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 111.  (Photo taken 9/5/15).

Take Exit 113 to Grove City College and Westminster College.  (Photo taken 9/5/15).

Interstate 79 North at Exit 113: PA 208 / PA 258 - Grove City  (Photo taken 9/5/15).

Mileage sign north of Exit 113. It's 3 miles to the junction of Interstate 80, 6 miles to Mercer, and 69 miles to Erie.  (Photo taken 9/5/15).

Interstate 79 North at mile marker 114.  (Photo taken 9/5/15).

Follow Interstate 80 West to get to Mercer.  (Photo taken 9/5/15).

Interstate 79 North approaching Exits 116A-B - 1 mile.  (Photo taken 9/5/15).

Interstate 79 North at Exit 116A: Interstate 80 East - Clarion  (Photo taken 9/5/15).

Interstate 79 North at Exit 116B: Interstate 80 West - Sharon  (Photo taken 7/3/15).

Interstate 79 North assurance shield north of the interchange with Interstate 80.  (Photo taken 7/3/15).

Speed limit assurance sign north of Exit 116. Speed Limit - 65 mph.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 118.  (Photo taken 7/3/15).

Interstate 79 North at Exit 122: US 62 - Mercer / Franklin  (Photo taken 7/3/15).

Mileage sign north of Exit 122. It's 7 miles to the junction of PA 358 (the next exit), 27 miles to Meadville, and 60 miles to Erie.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 124.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 127.  (Photo taken 7/3/15).

Take Exit 130 to Thiel College.  (Photo taken 7/3/15).

Also take Exit 130 to M.K. Goddard State Park and Pymatuning State Park.  (Photo taken 7/3/15).

Interstate 79 North approaching Exit 130 - 1 mile.  (Photo taken 7/3/15).

Interstate 79 North at Exit 130: PA 358 - Greenville / Sandy Lake  (Photo taken 7/3/15).

Mileage sign north of Exit 130. It's 10 miles to the junction of PA 285 (the next exit), 18 miles to Meadville, and 51 miles to Erie.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 133.  (Photo taken 7/3/15).

Like most Rest Areas in PA, a Weigh Station also exits at the one ahead. When the lights on this sign are flashing, all trucks must enter the Rest Area / Weigh station.  (Photo taken 7/3/15).

Interstate 79 North at the Rest Area / Weigh Station located near mile marker 134.5.  (Photo taken 7/3/15).

Interstate 79 North as it enters Crawford County.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 138.  (Photo taken 7/3/15).

Take Exit 141 to Erie National Wildlife Refuge.  (Photo taken 7/3/15).

Interstate 79 North at Exit 141: PA 285 - Geneva / Cochranton  (Photo taken 7/3/15).

Interstate 79 North at mile marker 144.  (Photo taken 7/3/15).

Take Exit 147A to Allegheny College.  (Photo taken 7/3/15).

Interstate 79 North at Exit 147A: US 6 East / US 322 East / US 19 North - Meadville  (Photo taken 7/3/15).

Interstate 79 North at Exit 147B: US 6 West / US 322 West / US 19 South - Conneaut Lake  (Photo taken 7/3/15).

Interstate 79 North at mile marker 150.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 153.  (Photo taken 7/3/15).

Interstate 79 North at Exit 154: PA 198 - Conneautville / Saegertown  (Photo taken 7/3/15).

Mileage sign north of Exit 154. It's 10 miles to the junction of US 6N (the next exit) and 27 miles to Erie.  (Photo taken 7/3/15).

Interstate 79 North: Road view from mile marker 158.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 160.  (Photo taken 7/3/15).

Interstate 79 North at the Rest Area located at mile marker 163.  (Photo taken 7/3/15).

Interstate 79 North entering Erie County.  (Photo taken 7/3/15).

Take Exit 166 to Edinboro University of Pennsylvania.  (Photo taken 7/3/15).

Interstate 79 North at Exit 166: US 6N - Albion / Edinboro  (Photo taken 7/3/15).

Mileage sign north of Exit 166. It's 7 miles to McKean and 15 miles to Erie.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 168.  (Photo taken 7/3/15).

Interstate 79 North at mile marker 173.  (Photo taken 7/3/15).

Interstate 79 North at Exit 174: McKean  (Photo taken 7/3/15).

This sign lists the different exit numbers to Erie via Interstate 79 North and Interstate 90 East.  (Photo taken 7/3/15).

Interstate 79 North approaching Exits 178A-B - 1 mile.  (Photo taken 7/3/15).

Interstate 79 North at Exit 178A: Interstate 90 East - Buffalo  (Photo taken 7/3/15).

Interstate 79 North at Exit 178B: Interstate 90 West - Cleveland  (Photo taken 7/3/15).

Just north of Exit 178B, the speed limit decreases to 55 mph on Interstate 79 North as we enter the Erie area.  (Photo taken 7/3/15).

This sign lists the distances to the three upcoming exits to Erie on Interstate 79 North.  (Photo taken 7/3/15).

Take Exit 183B to Erie International Airport.  (Photo taken 7/3/15).

Interstate 79 North at Exit 180: US 19 - Kearsarge  (Photo taken 7/3/15).

Take Exit 182 to Saint Vincent Health Center. Stay straight ahead to the northern terminus of Interstate 79 at Bayfront Parkway to Port of Erie.  (Photo taken 7/3/15).

Take Exit 183B to Presque Isle State Park and Waldameer Park.  (Photo taken 7/3/15).

Interstate 79 North at Exit 182: US 20 - 26th St  (Photo taken 7/3/15).

Use the left lane ahead to UPMC Hamot Medical Center and Gannon University.  (Photo taken 7/3/15).

Approaching Exit 183A, the speed limit decreases to 50 mph.  (Photo taken 7/3/15).

Interstate 79 North at Exit 183A: PA 5 East / PA 290 East - 12th St  (Photo taken 7/3/15).

Interstate 79 North approaching Exit 183B.  (Photo taken 7/3/15).

Interstate 79 North at Exit 183B: PA 5 West - 12th St  (Photo taken 7/3/15).

Interstate 79 North at its northern terminus, at Bayfront Parkway in Erie.  (Photo taken 7/3/15).