Pennsylvania Route 66
Encyclopedia
Pennsylvania Route 66 is a 139 miles (224 km) long state highway
State highway
State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 in Western Pennsylvania
Western Pennsylvania
Western Pennsylvania consists of the western third of the state of Pennsylvania in the United States. Pittsburgh is the largest city in the region, with a metropolitan area population of about 2.4 million people, and serves as its economic and cultural center. Erie, Altoona, and Johnstown are its...

. Its northern terminus is at U.S. Route 6 in Kane
Kane, Pennsylvania
Kane is a borough in McKean County, Pennsylvania, east by south of Erie. It was founded in 1863 by Civil War general Thomas L. Kane at an elevated site 2210 feet above sea level. In the early part of the twentieth century, Kane had large glassworks, bottle works, lumber mills, and manufactures of...

. Its southern terminus is at US 119 (just east of Interstate 70) near New Stanton
New Stanton, Pennsylvania
New Stanton is a borough in Westmoreland County, Pennsylvania, United States. The population was 1,906 at the 2000 census. New Stanton is often used as a control city in western parts of Pennsylvania, as I-70 joins the Pennsylvania Turnpike eastbound towards Breezewood, Pennsylvania in New...

. West of Greensburg
Greensburg, Pennsylvania
Greensburg is a city in Westmoreland County, Pennsylvania, United States, and a part of the Pittsburgh Metro Area. The city is named after Nathanael Greene, a major general of the Continental Army in the American Revolutionary War...

, PA 66 becomes the tolled Amos K. Hutchinson Bypass, a part of the Pennsylvania Turnpike
Pennsylvania Turnpike
The Pennsylvania Turnpike is a toll highway system operated by the Pennsylvania Turnpike Commission in the Commonwealth of Pennsylvania, United States. The three sections of the turnpike system total . The main section extends from Ohio to New Jersey and is long...

 System. The Bypass runs between U.S. Route 119 and U.S. Route 22.

Amos K. Hutchinson Bypass

PA 66 begins in New Stanton
New Stanton, Pennsylvania
New Stanton is a borough in Westmoreland County, Pennsylvania, United States. The population was 1,906 at the 2000 census. New Stanton is often used as a control city in western parts of Pennsylvania, as I-70 joins the Pennsylvania Turnpike eastbound towards Breezewood, Pennsylvania in New...

 at a cloverleaf interchange
Cloverleaf interchange
A cloverleaf interchange is a two-level interchange in which left turns, reverse direction in left-driving regions, are handled by ramp roads...

 with US 119
U.S. Route 119
U.S. Route 119, commonly abbreviated as US 119, is a spur of US 19. It is a north–south route that was an original United States highway of 1926. It is often referred to as Corridor G east of US 23 and KY 80 in Kentucky to Interstate 64 at Charleston, West Virginia.- Kentucky :US 119 is a two...

, Interstate 70
Interstate 70
Interstate 70 is an Interstate Highway in the United States that runs from Interstate 15 near Cove Fort, Utah, to a Park and Ride near Baltimore, Maryland. It was the first Interstate Highway project in the United States. I-70 approximately traces the path of U.S. Route 40 east of the Rocky...

, and Interstate 76
Interstate 76 (east)
Interstate 76 is an Interstate Highway in the United States, running 435 miles from an interchange with Interstate 71 west of Akron, Ohio, east to Interstate 295 near Camden, New Jersey....

 (Pennsylvania Turnpike
Pennsylvania Turnpike
The Pennsylvania Turnpike is a toll highway system operated by the Pennsylvania Turnpike Commission in the Commonwealth of Pennsylvania, United States. The three sections of the turnpike system total . The main section extends from Ohio to New Jersey and is long...

). Exit 1 is for Arona Road, where no tolls are collected. Exit 4 is the first toll exit. Exit 4 is located in Hempfield Township
Hempfield Township, Westmoreland County, Pennsylvania
Hempfield Township is a township in Westmoreland County, Pennsylvania, United States. The population was 43,241 at the 2010 census, making it the largest suburb in the Pittsburgh Metropolitan Area by population.- Geography :...

 and PA 66 interchanges with Pennsylvania Route 136
Pennsylvania Route 136
Pennsylvania Route 136 is a long state highway located in Washington, Allegheny, and Westmoreland counties in Pennsylvania. The western terminus is at US 40 & PA 18 in Washington...

 at exit 4. 1 miles (1.6 km) north of PA 136, PA 66 reaches the Hempfield Toll Plaza. Southeast of Jeannette
Jeannette, Pennsylvania
Jeannette is a city in Westmoreland County, Pennsylvania, United States. The population was 10,788 at the 2000 census.-Geography:Jeannette is located at ....

, PA 66 interchanges with U.S. Route 30
U.S. Route 30
U.S. Route 30 is an east–west main route of the system of United States Numbered Highways, with the highway traveling across the northern tier of the country. It is the third longest U.S. route, after U.S. Route 20 and U.S. Route 6. The western end of the highway is at Astoria, Oregon; the...

 at exit 6. Exit 8 is located 1 miles (1.6 km) east of Jeannette and PA 66 interchanges with Pennsylvania Route 130
Pennsylvania Route 130
Pennsylvania Route 130 is a long state highway located in Allegheny and Westmoreland counties in Pennsylvania. The western terminus is at PA 8 in Pittsburgh. The eastern terminus is at PA 381 near Kregar....

. At exit 9, PA 66 interchanges with Pennsylvania Route 66 Business the former routing of PA 66. At exit 12, PA 66 interchanges with the northern terminus of PA 66 Business. At exit 14, PA 66 meets U.S. Route 22 at a single-point urban interchange
Single-point urban interchange
A single-point urban interchange , also called a single-point interchange or single-point diamond interchange , is a type of highway interchange...

. North of US 22, PA 66 continues north at-grade.

Toll structure

Tolls are collected once during travel on the road, either at the mainline toll barrier, or at the exit or entrance point, depending on the possibility of reaching the mainline toll barrier during travel. No toll is charged for travel between exits 0 and 1 or between exits 12 and 14. Tolls are paid either by cash or E-Z Pass. At the mainline toll barrier, a manned full service lane exists. For most exit ramp tolls, exact coins are required; however some automatic toll collection machines accept paper money and give change. All toll collecting machines give receipts.

Usage by trucks

The highway was built primarily to eliminate the need for trucks traveling to northwestern Pennsylvania via U.S. Route 119 and PA 66 from having to travel through downtown Greensburg. When the highway first opened, many trucks avoided the bypass due to the toll along the turnpike. However, turn restrictions in Downtown Greensburg forced many trucks to use the bypass.

Westmoreland County

North of the Amos K. Hutchinson Bypass, PA 66 enters Salem Township
Salem Township, Westmoreland County, Pennsylvania
Salem Township is a township in Westmoreland County, Pennsylvania, United States. The population was 6,939 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 47.8 square miles , of which, 47.1 square miles of it is land and...

 as Sheridan Road. In Delmont
Delmont, Pennsylvania
Delmont is a borough in Westmoreland County, Pennsylvania, United States. The population was 2,497 at the 2000 census.-Geography:Delmont is located at ....

, PA 66 is called Sheridan Road. In Washington Township
Washington Township, Westmoreland County, Pennsylvania
Washington Township is a township in Westmoreland County, Pennsylvania, United States. It was founded in 1789 from Salem Township. At that time it included the present-day municipalities of Allegheny, Lower Burrell, Upper Burrell, and most of Bell...

, PA 66 passes west of Beaver Run Reservoir
Beaver Run Reservoir
Beaver Run Reservoir is a reservoir in Westmoreland County in the U.S. state of Pennsylvania. The elevation of Beaver Run Reservoir is 1053 feet above sea level.-See also:* List of lakes in Pennsylvania...

. In the village of Mamont, PA 66 intersects Pennsylvania Route 286
Pennsylvania Route 286
Pennsylvania Route 286 is an long, east–west state highway located in Allegheny, Westmoreland, Indiana, and Clearfield counties in Pennsylvania. The western terminus is at US 22 in Monroeville. The eastern terminus is at US 219 near Burnside....

. In the village of Poke Run north of PA 286, PA 66 intersects the eastern terminus of Pennsylvania Route 366
Pennsylvania Route 366
Pennsylvania Route 366 is an long state highway located in Allegheny, and Westmoreland counties in Pennsylvania. The western terminus is at PA 28 in Tarentum. The eastern terminus is at PA 66 in Murrysville...

. Then PA 66 intersects Pennsylvania Route 380
Pennsylvania Route 380
Pennsylvania Route 380 , also known as J.F. Bonetto Memorial Highway, is a long state highway in western portions of the U.S. state of Pennsylvania. The western terminus of the route is at Interstate 579 in downtown Pittsburgh near Mellon Arena...

, PA 380 west heads for downtown Pittsburgh. South of Oklahoma
Oklahoma, Pennsylvania
Oklahoma is a borough in Westmoreland County, Pennsylvania, United States. The population was 915 at the 2000 census.-Geography:Oklahoma is located at ....

, PA 66 intersects the southern terminus of Pennsylvania Route 356
Pennsylvania Route 356
Pennsylvania Route 356 is an long state highway located in Westmoreland, Allegheny, Butler, and Armstrong counties in Pennsylvania. The southern terminus is at PA 66 near Oklahoma...

. In the village of Paulton, PA 66 intersects the southern terminus of Pennsylvania Route 66 Alternate. PA 66 Alternate goes into Vandergrift
Vandergrift, Pennsylvania
Mosher shows how Vandergrift was representative of the new industrial suburbs of Pittsburgh. Caught up in a dramatic round of industrial restructuring and labor tension, Pittsburgh steelmaker George McMurtry hired Frederick Law Olmsted's landscape architectural firm in 1895 to design Vandergrift...

 and PA 66 goes into Apollo
Apollo, Pennsylvania
Apollo is a borough in Armstrong County, Pennsylvania, United States, 35 miles northeast of Pittsburgh in a former coal-mining region. Apollo was settled in 1790, laid out in 1816, and incorporated as a borough in 1848. The town was originally known as 'Warren', but was later renamed to avoid...

. In Oklahoma
Oklahoma, Pennsylvania
Oklahoma is a borough in Westmoreland County, Pennsylvania, United States. The population was 915 at the 2000 census.-Geography:Oklahoma is located at ....

, PA 66 meets the northern terminus of Pennsylvania Route 819
Pennsylvania Route 819
Pennsylvania Route 819 is a long state highway located in Fayette and Westmoreland counties in Pennsylvania, USA. The southern terminus is at PA 201 in Vanderbilt. The northern terminus is at PA 66 in Oklahoma.-Fayette County:...

. In downtown Oklahoma, PA 66 turns to the east and crosses the Kiskiminetas River
Kiskiminetas River
The Kiskiminetas River is a tributary of the Allegheny River, approximately long, in Western Pennsylvania in the United States...

.

Armstrong County

After crossing the Kiskiminetas River
Kiskiminetas River
The Kiskiminetas River is a tributary of the Allegheny River, approximately long, in Western Pennsylvania in the United States...

, PA 66 has entered Armstrong County
Armstrong County, Pennsylvania
Armstrong County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 68,941. It is located northeast of Pittsburgh and Allegheny County. Armstrong County was added to the Pittsburgh Metropolitan Statistical Area in 2003.The county seat is Kittanning...

 and begins a concurrency with Pennsylvania Route 56
Pennsylvania Route 56
Pennsylvania Route 56 is a major long state highway located in central Pennsylvania. Its western terminus is at the eastern approach to the C.L. Schmitt Bridge in New Kensington. Its eastern terminus is U.S. Route 30 west of Bedford.- Route description :...

 in Apollo
Apollo, Pennsylvania
Apollo is a borough in Armstrong County, Pennsylvania, United States, 35 miles northeast of Pittsburgh in a former coal-mining region. Apollo was settled in 1790, laid out in 1816, and incorporated as a borough in 1848. The town was originally known as 'Warren', but was later renamed to avoid...

. As they began their concurrency, PA 56/PA 66 were called Warren Avenue in Apollo. As PA 56/PA 66 enter the boro of North Apollo
North Apollo, Pennsylvania
North Apollo is a borough in Armstrong County, Pennsylvania, United States. The population was 1,426 at the 2000 census.-Geography:North Apollo is located at ....

 they are paralleling the Kiskiminetas River. In the village of North Vandergrift, the concurrency between PA 56 and PA 66 ends when PA 66 intersects PA 66 Alternate and PA 56 and PA 66 ALT begin their own concurrency into Vandergrift
Vandergrift, Pennsylvania
Mosher shows how Vandergrift was representative of the new industrial suburbs of Pittsburgh. Caught up in a dramatic round of industrial restructuring and labor tension, Pittsburgh steelmaker George McMurtry hired Frederick Law Olmsted's landscape architectural firm in 1895 to design Vandergrift...

. As PA 66 continues to parallel the Kiskiminetas River, it is called Lincoln Avenue. While paralleing the Kiskiminetas River, PA 66 has snake like curves. In Leechburg
Leechburg, Pennsylvania
Leechburg is a borough in southern Armstrong County in the U.S. state of Pennsylvania, northeast of Pittsburgh. Leechburg was founded by David Leech, for whom it was later named, and was incorporated as a borough in 1850....

, PA 66 becomes Market Street, 3rd Street, and Pershing Avenue. As PA 66 exits Leechburg it is not paralleling the Kiskiminetas River
Kiskiminetas River
The Kiskiminetas River is a tributary of the Allegheny River, approximately long, in Western Pennsylvania in the United States...

. In Bethel Township
Bethel Township, Armstrong County, Pennsylvania
Bethel Township is a township in Armstrong County, Pennsylvania, United States. The population was 1,290 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...

, PA 66 meets the northern terminus of PA 66 Alternate. In Ford City
Ford City, Pennsylvania
Ford City is a borough in Armstrong County, Pennsylvania, United States, northeast of Pittsburgh along the east bank of the Allegheny River and 4 miles south of Kittanning, the county seat....

, PA 66 becomes Main Street and intersects the northern terminus of Pennsylvania Route 128
Pennsylvania Route 128
Pennsylvania Route 128 is an long state highway located in Armstrong county in Pennsylvania. The southern terminus is at PA 356 in Freeport. The northern terminus is at PA 66 in Ford City.-Route description:...

 at an "Y" intersection. Southeast of Kittanning
Kittanning, Pennsylvania
Kittanning is a borough and the county seat of Armstrong County, Pennsylvania in the United States. It is situated northeast of Pittsburgh, along the east bank of the Allegheny River. The name means "at the great stream" in the Delaware language...

, PA 66 begins a concurrency with U.S. Route 422
U.S. Route 422
U.S. Route 422 is a long spur route of US 22 split into two segments in the U.S. states of Ohio and Pennsylvania. The western spur begins in downtown Cleveland, Ohio, and ends at Ebensburg, Pennsylvania...

 and Pennsylvania Route 28
Pennsylvania Route 28
Pennsylvania Route 28 is a major state highway which runs for 97 miles from Interstate 279 and Interstate 579 at the Interstate 279 Interchange in Pittsburgh to U.S. Route 219 in Brockway in the U.S. state of Pennsylvania. The expressway from Kittanning to Pittsburgh is called the Alexander H...

 at an interchange. At the next exit US 422 leaves the concurrency and PA 28/PA 66 continue north at-grade. In Rayburn Township
Rayburn Township, Pennsylvania
Rayburn Township is a township in Armstrong County, Pennsylvania, United States. The population was 1,811 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 12.4 square miles , of which, 11.9 square miles of it is land and...

, PA 28/PA 66 intersect the western terminus of Pennsylvania Route 85
Pennsylvania Route 85
Pennsylvania Route 85 is a long east–west state highway located in western Pennsylvania. The western terminus of the route is at Pennsylvania Route 28 and Pennsylvania Route 66 east of Kittanning. The eastern terminus is at U.S...

. PA 28/PA 66 continue towards the northeast without intersecting a route for more than 17 miles (27.4 km). In South Bethlehem
South Bethlehem, Pennsylvania
South Bethlehem is a borough in Armstrong County, Pennsylvania, United States. The population was 444 at the 2000 census.South Bethlehem is a borough in Armstrong County, Pennsylvania, United States. The population was 444 at the 2000 census.South Bethlehem is a borough in Armstrong County,...

, PA 28/PA 66 become Broad Street and meet the northern terminus of Pennsylvania Route 839
Pennsylvania Route 839
Pennsylvania Route 839 is a long state highway located in Armstrong county in Pennsylvania. The southern terminus is at PA 85 in Cowanshannock Township. The northern terminus is at PA 28/PA 66 in South Bethlehem.-Route description:...

.
The route then crosses the Redbank Creek into Clarion County after spending 43 miles in Armstrong County.

Clarion County

After crossing the Redbank Creek, PA 28/PA 66 have entered Clarion County
Clarion County, Pennsylvania
As of the census of 2000, there were 41,765 people, 16,052 households, and 10,738 families residing in the county. The population density was 69 people per square mile . There were 19,426 housing units at an average density of 32 per square mile...

. In New Bethlehem
New Bethlehem, Pennsylvania
New Bethlehem is a borough in Clarion County, Pennsylvania, United States. The population was 1,057 at the 2000 census.-Geography:New Bethlehem is located at ....

, The concurrency between PA 28 and PA 66 ends when PA 66 leaves PA 28. North of PA 28, PA 66 becomes Wood Street and intersects the eastern terminus of Pennsylvania Route 861
Pennsylvania Route 861
Pennsylvania Route 861 is a long state highway located in Clarion county in Pennsylvania. The western terminus is at PA 68 in Rimersburg. The eastern terminus is at PA 66 in New Bethlehem.-Route description:...

. In Clarion Township
Clarion Township, Pennsylvania
Clarion Township is a township in Clarion County, Pennsylvania, United States. The population was 3,273 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...

, PA 66 begins a concurrency with Interstate 80 at exit 64. Then I-80/PA 66 meet Pennsylvania Route 68
Pennsylvania Route 68
Pennsylvania Route 68 is a long east–west state highway located in western Pennsylvania in the United States. The western terminus of the route is at the Ohio state line west of Glasgow, where PA 68 continues into Ohio as State Route 39. The eastern terminus is at U.S...

 at exit 62. After crossing the Clarion River
Clarion River
The Clarion River is a tributary of the Allegheny River, approximately 110 mi long, in west central Pennsylvania in the United States...

, PA 66 leaves I-80 at exit 60 (trumpet interchange). PA 66 continues north at-grade. In Paint Township
Paint Township, Clarion County, Pennsylvania
Paint Township is a township in Clarion County, Pennsylvania, United States. The population was 1,778 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 20.8 square miles , of which, 20.5 square miles of it is land and...

, PA 66 intersects U.S. Route 322
U.S. Route 322
U.S. Route 322 is a long, east–west United States Highway, traversing Ohio, Pennsylvania, and New Jersey. The road is a spur of U.S. Route 22 and one of the original highways from 1926...

 as Paint Boulevard. PA 66 continues towards the north paralleling rail road tracks. In Farmington Township
Farmington Township, Clarion County, Pennsylvania
Farmington Township is a township in Clarion County, Pennsylvania, United States. The population was 1,986 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...

, PA 66 intersects Pennsylvania Route 36
Pennsylvania Route 36
Pennsylvania Route 36 is a long state highway located in the U.S. state of Pennsylvania. The southern terminus is at Pennsylvania Route 26 near the Hopewell Township community of Yellow Creek...

.

Forest, Elk, and McKean Counties

As PA 66 enters Forest County
Forest County, Pennsylvania
Forest County is a county located in the U.S. state of Pennsylvania. As of 2010, the population is 7,716. Forest County is famous as a rural retreat. Nearly 75% of all dwellings in the county are second or vacation homes . Forest County does not have a single traffic light, the only county in the...

, PA 66 intersects the northern terminus of Pennsylvania Route 899
Pennsylvania Route 899
Pennsylvania Route 899 is a long state highway located in Jefferson and Forest counties in Pennsylvania. The southern terminus is at PA 36 in Barnett Township. The northern terminus is at PA 66 in Jenks Township.-Route description:...

. In Jenks Township
Jenks Township, Pennsylvania
Jenks Township is a township in Forest County, Pennsylvania, United States. The population was 1,261 at the 2000 census. It is the most populous municipality in all of Forest County.-Geography:...

, PA 66 enters Allegheny National Forest
Allegheny National Forest
The Allegheny National Forest is a National Forest located in northwestern Pennsylvania. The forest covers of land. Within the forest is Kinzua Dam, which impounds the Allegheny River to form Allegheny Reservoir. The administrative headquarters for the Allegheny National Forest is located in Warren...

. As PA 28 enters Elk County
Elk County, Pennsylvania
Elk County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 31,946.Elk County was created on April 18, 1843, from parts of Jefferson, Clearfield and McKean Counties, and is named for the Eastern elk that historically inhabited the region. Its county...

, PA 66 has a 2 miles (3 km) concurrency with Pennsylvania Route 948
Pennsylvania Route 948
Pennsylvania Route 948 is a long state highway located in Elk, Forest, and Warren counties in Pennsylvania. The southern terminus is at PA 255 in Fox Township. The northern terminus is at PA 666 in Sheffield Township.-Elk County:...

. Northeast of PA 948, PA 66 becomes Kane-Russell City Road. PA 66 enters McKean County
McKean County, Pennsylvania
As of the census of 2000, there were 45,936 people, 18,024 households, and 12,094 families residing in the county. The population density was 47 people per square mile . There were 21,644 housing units at an average density of 22 per square mile...

 as Fraley Street. In Kane
Kane, Pennsylvania
Kane is a borough in McKean County, Pennsylvania, east by south of Erie. It was founded in 1863 by Civil War general Thomas L. Kane at an elevated site 2210 feet above sea level. In the early part of the twentieth century, Kane had large glassworks, bottle works, lumber mills, and manufactures of...

, PA 66 terminates (ends) at a "T" intersection with U.S. Route 6.

Major intersections

{| class=wikitable
!County
!Location
!Mile
!Exit
Exit number
An exit number is a number assigned to a road junction, usually an exit from a freeway. It is usually marked on the same sign as the destinations of the exit, as well as a sign in the gore....


!Destinations
!Notes
|-
|rowspan=18|Westmoreland
Westmoreland County, Pennsylvania
-Demographics:As of the census of 2000, there were 369,993 people, 149,813 households, and 104,569 families residing in the county. The population density was 361 people per square mile . There were 161,058 housing units at an average density of 157 per square mile...


|rowspan=3|New Stanton
New Stanton, Pennsylvania
New Stanton is a borough in Westmoreland County, Pennsylvania, United States. The population was 1,906 at the 2000 census. New Stanton is often used as a control city in western parts of Pennsylvania, as I-70 joins the Pennsylvania Turnpike eastbound towards Breezewood, Pennsylvania in New...


|0.0
|0
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|Split into 0A and 0B
|-
|1.0
|1
|Arona Road
|
|-
|colspan=4 align="center"|Southern terminus of toll collection.
|-
|rowspan=5|Greensburg
Greensburg, Pennsylvania
Greensburg is a city in Westmoreland County, Pennsylvania, United States, and a part of the Pittsburgh Metro Area. The city is named after Nathanael Greene, a major general of the Continental Army in the American Revolutionary War...


|4.3
|4
|
|Toll for northbound exit and southbound entrance (Cash $1.10, E-ZPass $1.00 for 2-axle vehicles)
|-
|colspan=4 align="center"|Haydentown Mainline Toll Barrier.
Cash $1.45, E-ZPass $1.33 for 2-axle vehicles
|-
|6.2
|6
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|Toll for southbound exit and northbound entrance (Cash $1.10, E-ZPass $1.00 for 2-axle vehicles)
|-
|7.7
|8
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|Toll for southbound exit and northbound entrance (Cash $0.80, E-ZPass $0.67 for 2-axle vehicles)
|-
|9.3
|9
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|Toll for southbound exit and northbound entrance (Cash $0.80, E-ZPass $0.67 for 2-axle vehicles)
|-
|rowspan=4|Delmont
Delmont, Pennsylvania
Delmont is a borough in Westmoreland County, Pennsylvania, United States. The population was 2,497 at the 2000 census.-Geography:Delmont is located at ....


|colspan=4 align="center"|Northern terminus of toll collection.
|-
|12.5
|12
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|Former routing of PA 66.
|-
|13.5
|14
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|
|-
|colspan=4 align="center"|Northern terminus of
.
continues north at-grade
|-
|rowspan=6|Washington Township
Washington Township, Westmoreland County, Pennsylvania
Washington Township is a township in Westmoreland County, Pennsylvania, United States. It was founded in 1789 from Salem Township. At that time it included the present-day municipalities of Allegheny, Lower Burrell, Upper Burrell, and most of Bell...


|19.2
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|20.0
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|23.0
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|24.7
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|26.3
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|26.6
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|rowspan=8|Armstrong
Armstrong County, Pennsylvania
Armstrong County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 68,941. It is located northeast of Pittsburgh and Allegheny County. Armstrong County was added to the Pittsburgh Metropolitan Statistical Area in 2003.The county seat is Kittanning...


|Apollo
Apollo, Pennsylvania
Apollo is a borough in Armstrong County, Pennsylvania, United States, 35 miles northeast of Pittsburgh in a former coal-mining region. Apollo was settled in 1790, laid out in 1816, and incorporated as a borough in 1848. The town was originally known as 'Warren', but was later renamed to avoid...


|27.3
|
|
|South end of PA 56 overlap
|-
|Parks Township
Parks Township, Pennsylvania
Parks Township is a township in Armstrong County, Pennsylvania, United States. The population was 2,754 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 14.2 square miles , of which, 14.1 square miles of it is land and...


|29.9
|
|
|North end of PA 56 overlap
|-
|Bethel Township
Bethel Township, Armstrong County, Pennsylvania
Bethel Township is a township in Armstrong County, Pennsylvania, United States. The population was 1,290 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...


|43.5
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|
|-
|Ford City
Ford City, Pennsylvania
Ford City is a borough in Armstrong County, Pennsylvania, United States, northeast of Pittsburgh along the east bank of the Allegheny River and 4 miles south of Kittanning, the county seat....


|49.1
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|
|-
|rowspan=2|Manor Township
Manor Township, Armstrong County, Pennsylvania
Manor Township is a township in Armstrong County, Pennsylvania, United States. The population was 4,231 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 17.2 square miles , of which, 16.6 square miles of it is land and...


|50.3
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|Interchange. South end of US 422/PA 28 overlap
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|52.3
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|Interchanges. North end of US 422 overlap
|-
|Rayburn Township
Rayburn Township, Pennsylvania
Rayburn Township is a township in Armstrong County, Pennsylvania, United States. The population was 1,811 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 12.4 square miles , of which, 11.9 square miles of it is land and...


|53.4
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|
|
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|South Bethlehem
South Bethlehem, Pennsylvania
South Bethlehem is a borough in Armstrong County, Pennsylvania, United States. The population was 444 at the 2000 census.South Bethlehem is a borough in Armstrong County, Pennsylvania, United States. The population was 444 at the 2000 census.South Bethlehem is a borough in Armstrong County,...


|70.3
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|rowspan=7|Clarion
Clarion County, Pennsylvania
As of the census of 2000, there were 41,765 people, 16,052 households, and 10,738 families residing in the county. The population density was 69 people per square mile . There were 19,426 housing units at an average density of 32 per square mile...


|rowspan=2|New Bethlehem
New Bethlehem, Pennsylvania
New Bethlehem is a borough in Clarion County, Pennsylvania, United States. The population was 1,057 at the 2000 census.-Geography:New Bethlehem is located at ....


|70.7
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|70.8
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|Clarion Township
Clarion Township, Pennsylvania
Clarion Township is a township in Clarion County, Pennsylvania, United States. The population was 3,273 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...


|83.9
|64
|
|South end of I-80 overlap
|-
|Monroe Township
Monroe Township, Clarion County, Pennsylvania
Monroe Township is a township in Clarion County, Pennsylvania, United States. As of the 2000 census, the township had a total population of 1,587.-Geography:...


|86.3
|62
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|-
|rowspan=2|Paint Township
Paint Township, Clarion County, Pennsylvania
Paint Township is a township in Clarion County, Pennsylvania, United States. The population was 1,778 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of 20.8 square miles , of which, 20.5 square miles of it is land and...


|88.0
|60
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|North end of I-80 overlap
|-
|91.8
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|Farmington Township
Farmington Township, Clarion County, Pennsylvania
Farmington Township is a township in Clarion County, Pennsylvania, United States. The population was 1,986 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...


|103.3
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|Forest
Forest County, Pennsylvania
Forest County is a county located in the U.S. state of Pennsylvania. As of 2010, the population is 7,716. Forest County is famous as a rural retreat. Nearly 75% of all dwellings in the county are second or vacation homes . Forest County does not have a single traffic light, the only county in the...


|Jenks Township
Jenks Township, Pennsylvania
Jenks Township is a township in Forest County, Pennsylvania, United States. The population was 1,261 at the 2000 census. It is the most populous municipality in all of Forest County.-Geography:...


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|rowspan=2|Elk
Elk County, Pennsylvania
Elk County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 31,946.Elk County was created on April 18, 1843, from parts of Jefferson, Clearfield and McKean Counties, and is named for the Eastern elk that historically inhabited the region. Its county...


|rowspan=2|Highland Township
Highland Township, Elk County, Pennsylvania
Highland Township is a township in Elk County, Pennsylvania, United States. The population was 509 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which is land and is water...


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|South end of PA 948 overlap
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|North end of PA 948 overlap
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|McKean
McKean County, Pennsylvania
As of the census of 2000, there were 45,936 people, 18,024 households, and 12,094 families residing in the county. The population density was 47 people per square mile . There were 21,644 housing units at an average density of 22 per square mile...


|Kane
Kane, Pennsylvania
Kane is a borough in McKean County, Pennsylvania, east by south of Erie. It was founded in 1863 by Civil War general Thomas L. Kane at an elevated site 2210 feet above sea level. In the early part of the twentieth century, Kane had large glassworks, bottle works, lumber mills, and manufactures of...


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PA 66 Alternate

Pennsylvania Route 66 Alternate is an 11 miles (17.7 km) long alternate tract through Armstrong County, Pennsylvania
Armstrong County, Pennsylvania
Armstrong County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 68,941. It is located northeast of Pittsburgh and Allegheny County. Armstrong County was added to the Pittsburgh Metropolitan Statistical Area in 2003.The county seat is Kittanning...

. It leaves its parent route in Parks Township (North Vandergrift), avoiding several riverfront towns as it travels along a hilly, rural stretch, before rejoining mainline PA 66 in Bethel Township
Bethel Township, Armstrong County, Pennsylvania
Bethel Township is a township in Armstrong County, Pennsylvania, United States. The population was 1,290 at the 2000 census.-Geography:According to the United States Census Bureau, the township has a total area of , of which, of it is land and of it is water.-Demographics:As of the census of...

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PA 66 Business

Pennsylvania Route 66 Business is an 8 miles (12.9 km) long business route in Westmoreland County, Pennsylvania
Westmoreland County, Pennsylvania
-Demographics:As of the census of 2000, there were 369,993 people, 149,813 households, and 104,569 families residing in the county. The population density was 361 people per square mile . There were 161,058 housing units at an average density of 157 per square mile...

, connected two fingers of suburbia located east of Pittsburgh. The highway was created when a mainline Route 66 was shifted onto a toll bypass. The route begins nearly a mile south of the original terminus of PA 66, at a juncture with U.S. Route 30
U.S. Route 30
U.S. Route 30 is an east–west main route of the system of United States Numbered Highways, with the highway traveling across the northern tier of the country. It is the third longest U.S. route, after U.S. Route 20 and U.S. Route 6. The western end of the highway is at Astoria, Oregon; the...

 (which loops as a freeway around the city). It is cosigned with Pennsylvania Route 819
Pennsylvania Route 819
Pennsylvania Route 819 is a long state highway located in Fayette and Westmoreland counties in Pennsylvania, USA. The southern terminus is at PA 201 in Vanderbilt. The northern terminus is at PA 66 in Oklahoma.-Fayette County:...

 to the city center, before travelling on its own accord through several suburbanized miles. The route then becomes more rural, as it provides a free connection to the north-central edge of suburban Pittsburgh at Delmont
Delmont, Pennsylvania
Delmont is a borough in Westmoreland County, Pennsylvania, United States. The population was 2,497 at the 2000 census.-Geography:Delmont is located at ....

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