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Pennsylvania Route 18

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Pennsylvania Route 18 (PA 18) is a major north–south highway in Western Pennsylvania whose southern terminus is at West Virginia Route 69 (WV 69) at the state line in Greene County near the village of Garrison, while the northern terminus is at PA 5 in Lake City. At a length of 205 miles (330 km), PA 18 is the only state route in Pennsylvania — north–south or east–west — to traverse the entire state. It also has the distinction of being the longest state route in Pennsylvania.

Pennsylvania Route 18 marker
Pennsylvania Route 18
Map
Route of PA 18 highlighted in red
Route information
Maintained by PennDOT
Length205 mi[1] (330 km)
Tourist
routes		Crawford Lakelands Scenic Byway
Major junctions
South end WV 69 near Garrison
Major intersections US 40 in Washington
I-70 near Washington
US 22 near Frankfort Springs
US 30 near Harshaville
I-376 near Monaca
I-76 / Penna Turnpike in Big Beaver
I-376 near West Middlesex
I-80 / I-376 / PA 760 near West Middlesex
I-90 near Platea
US 20 near Girard
North end PA 5 in Lake City
Location
CountryUnited States
StatePennsylvania
CountiesGreene, Washington, Beaver, Lawrence, Mercer, Crawford, Erie
Highway system
← PA 17→ US 19

Route description

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PA 18 northbound in Sycamore

Greene County

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Traveling northward from West Virginia Route 69 at the West Virginia state line, Route 18 winds through rural Greene County, passing through the villages of Garrison, New Freeport, Nettle Hill, White Cottage, Woodruff, and Holbrook, before making its first junction with another state highway, PA Route 21, just west of the village of Rogersville and over 15 miles (24 km) from the state line. Here the two routes overlap for nearly 6 miles (9.7 km), winding east-northeast through Rogersville and the village of East View, crossing the South Fork of Ten Mile Creek numerous times before reaching the village of West Waynesburg. At this point, Route 18 leaves the concurrency and turns northwest, traveling 12 miles (19 km) to the county line, following along Browns Creek, and passing through the villages of Rees Mill, Sycamore, and Nineveh.

Washington County

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Route 18 enters Washington County, and intersects with the eastern terminus of PA Route 231 and turns to the northeast and traveling over 5 miles (8.0 km), passing near the villages of Old Concord and Sparta. Next, the route meets PA Route 221, and the two overlap for just over a mile, heading northwest through the village of Prosperity. After the village, Route 18 leaves the concurrency and heads northward through the villages of Van Buren, Lagonda, and Gabby Heights as it approaches the city of Washington nearly 10 miles (16 km) later. In Washington, Route 18 briefly overlaps with US 40, and the routes head west, intersect with the western terminus of PA Route 136, and then turn northwest. US 40 then leaves the concurrency, and nearly a mile later, Route 18 interchanges with I-70, connecting via city streets to the entrance and exit ramps. Before departing the city, 0.4 miles (0.64 km) later, the route intersects with the eastern terminus of PA Route 844, turns northward, and passes through the village of Oak Grove. Route 18 passes through the village of Gretna 8.5 miles (13.7 km) later and then overlaps with PA Route 50 for 0.5 miles (0.80 km) a couple miles west of the village of Hickory before continuing north-northwest. The route then passes by the village of Atlasburg and through the village of Slovan before reaching the borough of Burgettstown 7.5 miles (12.1 km) later. Route 18 meets US 22 nearly 4 miles (6.4 km) north of the borough, and then passes through the village of Florence at Old US 22 before reaching the county line just over 3 miles (4.8 km) later.

Beaver County

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PA 18 was rerouted around the campus of Geneva College in Beaver Falls in 2008. Shown is the intersection constructed in front of the campus.

The route enters the borough of Frankfort Springs as it enters Beaver County, and meets the southern terminus of PA Route 168 at the north end of the borough. Passing through nearly 5 miles (8.0 km) of state park land, Route 18 eventually meets US 30 in the village of Harshaville. The route then junctions with PA Route 151 at the village of Mechanicsburg about 1.5 miles (2.4 km) later, and then passes through the village of McCleary. As Route 18 approaches the Ohio River, it turns east-northeast before its first interchange with I-376 about 2 miles (3.2 km) west of the borough of Monaca. The route enters the borough, turns north-northwest, crosses the Ohio River on the Rochester-Monaca Bridge, and enters the borough of Rochester. In Rochester, Route 18 intersects with the PA Route 51/PA Route 65 overlap, and then PA Route 68 before turning northwest, west, then north-northwest. It then merges with PA Route 65 along the east bank of the Beaver River. The concurrency enters the borough of New Brighton, where Route 18 then leaves the concurrency over 2 miles (3.2 km) later, crosses the Beaver River, enters the city of Beaver Falls, and continues northward almost 2 miles (3.2 km). Route 18 briefly joins with PA Route 588, and then intersects with the southern terminus of PA Route 551 2 miles (3.2 km) later, just before leaving the city and entering the borough of Big Beaver. The route then passes through the borough of Homewood about 1.5 miles (2.4 km) later, and re-enters Big Beaver, where it interchanges with I-76 and The Pennsylvania Turnpike. Route 18 then passes through the borough of Koppel nearly 1.5 miles (2.4 km) later, where it intersects with PA Route 351, and then re-enters Big Beaver a third time before leaving Beaver County 1.3 miles (2.1 km) later.

Lawrence County

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As the route enters Lawrence County, it also enters the borough of New Beaver. Route 18 then turns northwestward, and passes through the borough of Wampum 2 miles (3.2 km) later, where it intersects with the western terminus of PA Route 288. The route re-enters New Beaver, then turns northward before its second intersection with PA Route 168 over 3.5 miles (5.6 km) later, near the village of Moravia. Route 18 enters the city of New Castle nearly 4 miles (6.4 km) later as it crosses the Mahoning River, and then meets PA Route 108. The two join and turn east, then northeast through the village of Mahoningtown, situated between the Mahoning and Shenango rivers. The concurrency then passes under US 422 about 0.8 miles (1.3 km) later before turning eastward and crossing the Shenango River. The concurrency then intersects 1.3 miles (2.1 km) later with PA Route 168, and the three routes overlap for 0.9 miles (1.4 km), heading northward. Routes 108 and 168 then leave the concurrency, and Route 18 continues northward. The route is then joined with Business US 422 near downtown New Castle for nearly 0.5 miles (0.80 km). Business US 422 then leaves westward and Route 18 continues northward out of the city. Route 18 passes through the village of Walmo, and then intersects 4 miles (6.4 km) north of New Castle with Mitchell Rd., which carries traffic to I-376 parallel to and west of Route 18. From here, PA 18 heads into a rural area of northern Lawrence County that is home to an Amish community.[2] Over 1.6 miles (2.6 km) later, the route intersects with the southern terminus of PA 158 south of the borough of New Wilmington, and 2.3 miles (3.7 km) later with PA 208 west of the borough just before exiting Lawrence County 0.5 miles (0.80 km) north of the intersection.

Mercer County

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Upon entering Mercer County, the route winds northwesterly a few miles before turning west, where it has its second interchange with I-376 4.5 miles (7.2 km) later. Route 18 then turns northwesterly again, intersecting with the northern terminus of PA Route 551 0.4 miles (0.64 km) later, and enters the borough of West Middlesex a mile after that. Here, the route intersects with PA Route 318. Turning northward, the route then passes under I-80 and has an interchange with PA Route 760 immediately after (Route 18 traffic interchanges with I-80 via this PA Route 760 interchange). Route 18 then enters the city of Hermitage, intersects with the southern terminus of PA Route 518 a mile north of PA Route 760 at the village of Bobby's Corners, and continues about 2 miles (3.2 km) before intersecting with US 62 and then Business US 62 less than 0.3 miles (0.48 km) later. Over 1.5 miles (2.4 km) after that, the route intersects with the northern terminus of PA Route 518 at the village of Lamont's Corners east of the borough of Sharpsville before leaving Hermitage. The route enters the borough of Clark about 2.2 miles (3.5 km) later, where it intersects with the northern terminus of PA Route 258. Route 18 then crosses the Shenango River Reservoir, then passes near the villages of Transfer, Reynolds Heights, and Shenango before entering the borough of Greenville 8 miles (13 km) north of Clark. In Greenville, Route 18 intersects with the northern terminus of PA Route 846 just before its junction with PA Route 358. Here, the two routes overlap, heading eastward, and cross the Shenango River once again, before intersecting about 0.5 miles (0.80 km) later with PA Route 58, which joins the concurrency for about a quarter mile. Routes 18 and 58 then leave Route 358 and head northward. Less than a half mile later, Route 18 leaves the concurrency, turning northeastward, then northward, leaving Greenville. The Route continues through rural northern Mercer County about 4.5 miles (7.2 km) before passing through the village of Osgood, and leaves Mercer County less than a mile later.

Crawford County

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After entering Crawford County, Route 18 then passes through the village of Adamsville about 2 miles (3.2 km) north of the county line, and, over 2.5 miles (4.0 km) later, enters the village of Hartstown, where it joins US 322, heading east-northeast. They travel over 5 miles (8.0 km) to the borough of Conneaut Lake, where they serve Conneaut Lake Park and join with US 6/PA Route 285, heading east. Route 285 leaves the concurrency one block later, and the remaining routes continue eastward out of the borough, nearly a mile later, where Route 18 then leaves the concurrency and heads northward. About 3.5 miles (5.6 km) north of the borough, Route 18 intersects with the northern terminus of PA Route 618 near Conneaut Lake Park, and then passes through the village of Harmonsburg. About 7.5 miles (12.1 km) later, the route is joined by PA Route 198, and the concurrency enters the borough of Conneautville. In the borough, Route 198 leaves the concurrency nearly 0.9 miles (1.4 km) later, and Route 18 continues northward, passing through the borough of Springboro just over 3 miles (4.8 km) north of Conneautville.

Erie County

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Over 3.5 miles (5.6 km) north of Springboro, the route crosses into Erie County, and enters the borough of Albion nearly 3 miles (4.8 km) later. Here, Route 18 joins US 6N eastward about 1.5 miles (2.4 km), leaving the borough, where Route 18 turns northward. A mile later, the route passes through the borough of Cranesville, and then enters the borough of Platea about 3 miles (4.8 km) later, where it interchanges with I-90. Just over 2 miles (3.2 km) northward, Route 18 joins US 20 eastward into the borough of Girard for 1-mile (1.6 km), before leaving the concurrency and turning northward. Upon exiting Girard, the route enters the borough of Lake City, where it terminates at PA Route 5 near the shore of Lake Erie.

History

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  • 1927 The route was signed from Beaver Falls to Erie
  • 1928 Extended south from Beaver Falls to the West Virginia state line; also moved to its current alignment between PA 158 and Greenville from its previous alignment on current-day PA 158 near New Wilmington to Mercer and PA 58 from Mercer to Greenville.
  • 1963 Moved from Liberty St., Atlantic Ave., and Washington St. in New Castle to its current alignment on Mahoning Ave. and Jefferson St.
  • 1970 Widened from PA 518 in Hermitage (north end near Sharpsville) to Clark, and median installed; also, designation moved to the Beaver Valley Expressway (now Interstate 376 and PA 760) expressway between the West Middlesex interchange and the end of the Beaver Valley Expressway
  • 1971 Widened and median installed from US 62 north to Highland Rd. in Hermitage (then Hickory Township)
  • 1972 Widening completed from Clark to Shenango (village, near Greenville)
  • 1978 Designation moved back to current alignment from the Beaver Valley Expressway designation of 1970; Business PA 18 designation through West Middlesex was eliminated
  • 1997 Widened to 5 lanes from the north Beaver Valley Expressway interchange near West Middlesex to US 62 in Hermitage
  • 2002 Widening completed from US 62 in Hermitage to PA 518 near Sharpsville
  • 2008 Rerouted away from Geneva College in Beaver Falls to make the campus more safe for students.
  • 2016 Rerouted in Potter Township for both infrastructure improvements and widening in response to the Pennsylvania Shell ethylene cracker plant, with Royal Dutch Shell paying for the realignment.[3]

Major intersections

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CountyLocationmikmDestinationsNotes
GreeneFreeport Township0.00.0 
  WV 69 south – Hundred		Southern terminus of PA 18 at West Virginia state line
Center Township15.725.3 
  PA 21 west (Roy E. Furman Highway) – Rutan		Southern terminus of PA 21 concurrency
Franklin Township21.534.6 
  PA 21 east (Main Street) – Waynesburg		Northern terminus of PA 21 concurrency
WashingtonEast Finley Township33.654.1 
  PA 231 north (East Finley Drive)		Southern terminus of PA 231
Morris Township38.962.6 
  PA 221 south (Plum Sock Road)		Southern terminus of PA 221 concurrency
40.164.5 
  PA 221 north (South Bridge Road) – Taylorstown		Northern terminus of PA 221 concurrency
Washington50.080.5 
  US 40 east (East Maiden Street)		Southern terminus of US 40 concurrency
50.180.6 
  PA 136 east (Beau Street)		Western terminus of PA 136
50.681.4 
  US 40 west (West Chestnut Street)		Northern terminus of US 40 concurrency
51.582.9  
  I-70 to I-79 – Wheeling, New Stanton		Exit 17 (I-70)
51.983.5 
  PA 844 west (Jefferson Avenue)		Eastern terminus of PA 844
Mount Pleasant Township60.497.2 
  PA 50 west (Avella Road) – Avella		Southern terminus of PA 50 concurrency
60.998.0 
  PA 50 east (Main Street) – Hickory		Northern terminus of PA 50 concurrency
Hanover Township72.3116.4  US 22 – Weirton, PittsburghInterchange
BeaverFrankfort Springs76.5123.1 
  PA 168 north		Southern terminus of PA 168
Hanover Township81.4131.0  US 30 (Lincoln Highway)
Raccoon Township82.9133.4  PA 151 (Bocktown Road)
Center Township93.3150.2  I-376 – Pittsburgh, Pittsburgh International Airport, Beaver, New CastleExit 39 (I-376)
Ohio River96.6155.5Monaca-Rochester Bridge
Rochester96.8155.8   PA 51 / PA 65Interchange
97.0156.1  
 
  PA 68 (Adams Street) to PA 51 north		Traffic circle
Rochester Township97.8157.4 
  PA 65 south		Southbound exit and northbound entrance, southern terminus of PA 65 concurrency
New Brighton100.1161.1 
  PA 65 north (5th Street) – Ellwood City		Northern terminus of PA 65 concurrency
Beaver Falls101.9164.0 
  PA 588 west (24th Street)		Southern terminus of PA 588 concurrency
101.9164.0 
  PA 588 east (Eastvale Bridge)		Northern terminus of PA 588 concurrency
 
  PA 251 west (37th Street)		Eastern terminus of PA 251
103.9167.2 
  
 
  PA 551 north (Wallace Run Road) to I-376 Toll		Southern terminus of PA 551
Big Beaver105.8170.3   I-76 / Penna Turnpike – Pittsburgh, OhioExit 13 (Beaver Valley) (I-76 / Penna Turnpike)
Koppel107.3172.7  
 
  PA 351 (Arthur Street) to I-376 Toll – New Galilee, Ellwood City
LawrenceWampum110.6178.0 
  PA 288 east (Main Street) – Wampum, Ellwood City		Western terminus of PA 288
North Beaver Township114.3183.9  
 
  PA 168 (Galilee Road/Wampum Road) to I-376 Toll – West Pittsburg
New Castle117.8189.6 
  
 
  PA 108 west (Mt. Jackson Road) to I-376 Toll – Mount Jackson		Southern terminus of PA 108 concurrency
119.9193.0 
  
  PA 168 south (Moravia Street) to US 422		Southern terminus of PA 168 concurrency
120.8194.4 
  
  
  PA 108 east / PA 168 north (South Croton Avenue) to PA 65		Northern terminus of PA 108/PA 168 concurrency
120.9194.6 
 
  US 422 Bus. east (Grove Street)		Southern terminus of US 422 Bus. concurrency
121.2195.1  
 
  US 224 / US 422 Bus. west (West Falls Street)		Northern terminus of US 422 Bus. concurrency, eastern terminus of US 224[4]
Neshannock Township125.7202.3 
  To I-376 (Mitchell Road)
Wilmington Township127.3204.9 
  PA 158 north – Mercer		Southern terminus of PA 158
129.6208.6  PA 208 – Pulaski, New Wilmington, Volant
MercerShenango Township134.7216.8  I-376 – New Castle, SharonExit 2 (I-376)
135.1217.4 
  PA 551 south (Pulaski Road) – Pulaski		Northern terminus of PA 551
West Middlesex136.2219.2  PA 318 (Main Street)
Shenango Township137.1220.6  
  
  PA 760 to I-80 / I-376 – Wheatland, Farrell, Sharon, New Castle		Interchange
Hermitage138.1222.3 
  PA 518 north (Longview Road) – Farrell, Wheatland		Southern terminus of PA 518
140.1225.5  US 62 (Shenango Valley Freeway) – Sharon, Mercer
140.4226.0 
  US 62 Bus. (East State Street) – Sharon, Mercer		Former alignment of US 62
142.0228.5 
  PA 518 south (Lamor Road) – Sharpsville		Northern terminus of PA 518
Clark144.2232.1 
  PA 258 south – Clark, Mercer		Northern terminus of PA 258
Greenville152.8245.9 
  PA 846 south (Orangeville Street) – Orangeville		Northern terminus of PA 846
152.9246.1 
  PA 358 west (West Main Street)		Southern terminus of PA 358 concurrency
153.4246.9 
  PA 58 east (South Mercer Street)		Southern terminus of PA 58 concurrency
153.6247.2 
  PA 358 east (Main Street)		Northern terminus of PA 358 concurrency
Hempfield Township154.0247.8 
  PA 58 west (East Jamestown Road) – Jamestown		Northern terminus of PA 58 concurrency
CrawfordWest Fallowfield Township164.1264.1 
  US 322 west (Liberty Street) – Jamestown		Southern terminus of US 322 concurrency
Conneaut Lake169.4272.6 
  
  US 6 west / PA 285 west (Water Street)		Southern terminus of US 6/PA 285 concurrency
169.5272.8 
  PA 285 east (3rd Street)		Northern terminus of PA 285 concurrency
Sadsbury Township170.4274.2 
  
  US 6 east / US 322 east (Conneaut Lake Road)		Northern terminus of US 6/US 322 concurrency
Summit Township173.9279.9 
  PA 618 south		Northern terminus of PA 618
Summerhill Township181.5292.1 
  PA 198 east – Saegertown		Southern terminus of PA 198 concurrency
Conneautville182.3293.4 
  PA 198 west (Mulberry Street) – Linesville		Northern terminus of PA 198 concurrency
ErieAlbion192.0309.0 
  US 6N west (West State Street) – West Springfield		Southern terminus of US 6N concurrency
Elk Creek Township193.6311.6 
  US 6N east – Edinboro		Northern terminus of US 6N concurrency
Girard Township199.2320.6  I-90 – Cleveland, ErieExit 9 (I-90)
201.4324.1 
  US 20 west (Ridge Road) – Cleveland		Southern terminus of US 20 concurrency
Girard202.4325.7 
  US 20 east (West Main Street) – Erie		Northern terminus of US 20 concurrency
Lake City205.0329.9   PA 5 (West Lake Road) / LECTNorthern terminus of PA 18
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Special routes

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PA 18 Truck (Washington)

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Pennsylvania Route 18 Truck
LocationWashington, Pennsylvania

Pennsylvania Route 18 Truck is a truck route of PA 18 that is located near Washington, Pennsylvania.

The westbound exits and entrances of I-70 lead to a narrow street (called East Wylie Avenue) connecting to PA 18, thus making it harder for trucks to access PA 18. So, it follows I-70 west. It exits at exit 16, following Sheffield Street. Then, it creates a U-Turn back onto I-70 east and exits off PA 18.

PA 18 Truck (New Castle)

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Pennsylvania Route 18 Truck
LocationNew Castle, Pennsylvania
Existed2013–2018

Pennsylvania Route 18 Truck was a truck route around a weight-restricted bridge over the Shenango River that existed from 2013 to about 2018. The bridge along Mahoning Avenue was prohibited to trucks over 30 tons, necessitating the route.[5] The route followed PA 108, I-376, US 422, and PA 168. In 2018, the bridge underwent rehabilitation, including the replacement of bearings, and substructure and steel repairs, among other fixes.[6] As a result, the route was deleted upon reconstruction.[7]

PA 18 Business (West Middlesex)

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Pennsylvania Route 18 Business
LocationWest Middlesex, Pennsylvania
Existed1970–1978

Pennsylvania Route 18 Business was a business route of PA 18 that was established in 1970 when PA 18 was shifted onto the a part of the Beaver Valley Expressway from Exit 2 (PA 18) to the PA 760/PA 18 interchange near West Middlesex, Pennsylvania. PA 18 Business followed New Castle Road and Sharon Road through the town of West Middlesex. The route was removed in 1978 when mainline PA 18 was rerouted on its old alignment, removing the need for the business route.

See also

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References

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  1. ^ Calculated using DeLorme Street Atlas USA software
  2. ^ "Amish Countryside" (PDF). Visit Lawrence County. Archived from the original (PDF) on 2016-07-01. Retrieved February 5, 2019.
  3. ^ Stonesifer, Jared (2016-08-12). "Shell Chemicals hosts ribbon-cutting ceremony for $60 million new stretch of Route 18". The Beaver County Times. Gannett. Archived from the original on 2020-03-23.
  4. ^ http://www.transportation.org/sites/route/docs/Signed%20AASHTO%20Application%20for%20US%20224.pdf[permanent dead link]
  5. ^ "Risk-Based Bridge Postings - State and Local Bridges" (PDF). Pennsylvania Department of Transportation. October 8, 2013. Retrieved August 17, 2017.[permanent dead link]
  6. ^ "Mahoning Avenue Viaduct". Bridgehunter.com. Retrieved 2021-03-06.
  7. ^ "Google Maps". Google Maps. Retrieved 2021-03-06.
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