List of State Routes in Allegheny County, Pennsylvania

The following State Routes run through Allegheny County, Pennsylvania

Allegheny County, Pennsylvania

Allegheny County is a county in the southwestern part of the U.S. state of Pennsylvania. As of the 2010 census, the population was 1,223,348; making it the second most populous county in Pennsylvania, following Philadelphia County. The county seat is Pittsburgh...

Traffic Routes

Pennsylvania Route 8
Pennsylvania Route 8
Pennsylvania Route 8 is a major long route in western Pennsylvania. Officially, PA 8 is named the William Flinn Highway. Its southern terminus is at Interstate 376, U.S. Route 22, and U.S. Route 30 in Pittsburgh...

- One of the longest Pennsylvania state routes, this highway's southern terminus is located in Wilkinsburg
Wilkinsburg, Pennsylvania
Wilkinsburg is a borough in Allegheny County, Pennsylvania, United States adjacent to the city of Pittsburgh. The population was 15,930 at the 2010 census, having lost more than 13,000 in the 70 years since 1940, when 29,853 people were enumerated...

, at an interchange with Interstate 376. The road then forms that borough's main street as Ardmore Boulevard, before entering Pittsburgh city limits. As the busy Penn Avenue and Washington Boulevard, the highway is a backbone of the northeastern section of the city, serving some of Pittsburgh's richest and poorest neighborhoods. After crossing the Allegheny River
Allegheny River
The Allegheny River is a principal tributary of the Ohio River; it is located in the Eastern United States. The Allegheny River joins with the Monongahela River to form the Ohio River at the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania...

via the Senator Robert D. Fleming Bridge
Senator Robert D. Fleming Bridge
The Senator Robert D. Fleming Bridge, commonly known as the 62nd Street Bridge, is a truss bridge that carries PA Route 8 across the Allegheny River between the Pittsburgh neighborhood of Stanton Heights and the suburb of Sharpsburg.-History:...

, the highway continues as a the main drag through a variety of suburban communities. It is four lanes throughout and is frequently lines with businesses all the way to the Butler County
Butler County, Pennsylvania
-Demographics:As of the census of 2000, there were 174,083 people, 65,862 households, and 46,827 families residing in the county. The population density was 221 people per square mile . There were 69,868 housing units at an average density of 89 per square mile...

line.
U.S. Route 19- An essential north-south artery, this highway enters Allegheny County from a busy and quickly growing Washington County
Washington County, Pennsylvania
-Government and politics:As of November 2008, there are 152,534 registered voters in Washington County .* Democratic: 89,027 * Republican: 49,025 * Other Parties: 14,482...

suburban corridor. The route is generally only four lane and is often congested from well beyond the county line, as it functions as Washington Road through a variety of pretigious suburbs. After entering the City of Pittsburgh, the route is briefly co-signed with I-376, before branching off of the expressway system to cross the Ohio River
Ohio River
The Ohio River is the largest tributary, by volume, of the Mississippi River. At the confluence, the Ohio is even bigger than the Mississippi and, thus, is hydrologically the main stream of the whole river system, including the Allegheny River further upstream...

via the West End Bridge. Another short freeway stretch appears immediately after crossing the river, as the highway joins with Route 65, before becoming independent once again and winding as the often two-lane Marshall Avenue and Perrysville Avenue through a variety of ethnically diverse Pittsburgh neighborhoods. The route alternates between two and four lanes as it serves dense northern suburbs such as West View
West View, Pennsylvania
West View is a borough in Allegheny County, Pennsylvania, United States, just north of downtown Pittsburgh. The population was 6,771 at the 2010 census.-Geography and climate:West View is located at ....

, before becoming four lanes for the rest of its time in the county after rejoining with its Truck US 19 branch. The highway eventually meets with 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...

in Marshall Township and serves a heavily commercialized corridor, as it leaves Allegheny for Butler County
Butler County, Pennsylvania
-Demographics:As of the census of 2000, there were 174,083 people, 65,862 households, and 46,827 families residing in the county. The population density was 221 people per square mile . There were 69,868 housing units at an average density of 89 per square mile...

and an increasingly vast extended suburban area.
U.S. Route 19 Truck
U.S. Route 19 Truck (Pittsburgh, Pennsylvania)
U.S. Route 19 Truck is a truck route route of U.S. Route 19 located in Western Pennsylvania in the Pittsburgh Metro Area that has a length of . It is a loop off US 19; the southern terminus located in Mt. Lebanon and the northern terminus in McCandless Township, connecting to US 19 at both ends...

- This highway marks the original routing of US 19. In the 1940s, two sections of a truck bypass were built to keep heavy vehicles away from the narrow city streets on Pittsburgh's North Side. After the completion of area freeways, the truck designation became irrelevant and the two separate designations were combined. The southern terminus of the route is in the wealthy suburb of Mt. Lebanon
Mt. Lebanon, Pennsylvania
Mt. Lebanon is a home rule municipality, formerly a township, in Allegheny County, Pennsylvania, United States. The population was 33,137 at the 2010 census....

. The highway then extends as the narrow and crowded four-lane Liberty Avenue through the dense suburb of Dormont
Dormont, Pennsylvania
Dormont is a borough in Allegheny County, Pennsylvania, United States and is part of the Pittsburgh Metro Area. The population was 8,593 at the 2010 census and is the most densely populated municipality in Allegheny County. Dormont is a home to a diverse population including young professionals,...

and through Pittsburgh's south-central neighborhoods. The highway then turns to become briefly cosigned with Route 51, before hooking up with Interstates 376 and 279 to cross the Monongahela
Monongahela River
The Monongahela River is a river on the Allegheny Plateau in north-central West Virginia and southwestern Pennsylvania in the United States...

and Allegheny Rivers via the Fort Pitt Bridge
Fort Pitt Bridge
The Fort Pitt Bridge is a steel, double decker bowstring arch bridge that spans the Monongahela River near its confluence with the Allegheny River in Pittsburgh, Pennsylvania. It carries Interstate 376 between the Fort Pitt Tunnel and Downtown Pittsburgh.-History:The Fort Pitt Bridge opened on...

and Fort Duquesne Bridge
Fort Duquesne Bridge
The Fort Duquesne Bridge is a steel tied arch bridge that spans the Allegheny River in Pittsburgh, Pennsylvania. It was colloquially referred to as "The Bridge to Nowhere"...

respectively. At the northern edge of city limits, the highway regains its independence, becoming the wide, four-lane, and business-lined McKnight Road for the rest of its journey. In McCandless
McCandless, Pennsylvania
McCandless is a municipality in Allegheny County, Pennsylvania, United States. The population was 28,457 at the 2010 census. It was originally incorporated as a township; however, on January 1, 1975, McCandless Township adopted a new charter designating it a Home Rule Charter Municipality with the...

, it rejoins its parent and meets its end.
U.S. Route 22- This major cross-country highway serves as a freeway for almost its entire path through Allegheny County. It enters the region from Washington County in the west, serving as an expressway connection with Weirton, West Virginia
Weirton, West Virginia
Weirton is a city located in the Northern Panhandle of West Virginia, United States. Most of the city is in Hancock County, with the remainder in Brooke County. As of the 2000 census, the city population was 20,411...

. For its first two miles in the county, it functions independently, before US 30 joins its routing on what is known as the Parkway West. In the busy suburb of Robinson Township, US 22/30 joins on with Interstate 376, and it is cosigned in this manner through the city of Pittsburgh and until that route's eastern terminus. On the office park-lined streets of Monroeville
Monroeville, Pennsylvania
Monroeville is a home rule municipality in Allegheny County, Pennsylvania, United States. Located about east of the city of Pittsburgh, Monroeville is a bustling suburb with mixed residential and commercial developments...

, US 22 branches westward, serving as a four-lane connector as it heads toward suburbanized regions in Westmoreland County
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...

.
U.S. Route 22 Business
PA Route 28- At a confusing freeway junction in the East Allegheny
East Allegheny (Pittsburgh)
East Allegheny, also known as Deutschtown, is a neighborhood on Pittsburgh's North Side. It has a ZIP Code of 15212, and has representation on Pittsburgh City Council by the council member for District 1...

neighborhood of Pittsburgh, this highway marks its western terminus. The highway begins as a narrow four-lane East Ohio Street, running in this function through the suburbs of Reserve Township and Millvale
Millvale, Pennsylvania
Millvale is a borough in Allegheny County, Pennsylvania, along the Allegheny River, opposite Pittsburgh. In the past, it had iron manufactures, saw works, stone works, lumber mills, breweries, etc. In 1900, the number of people residing here totaled 6,736; in 1910, 7,861; and in 1940, 7,811...

. Then, the highway transitions into the Allegheny Valley Expressway and serves as the main freeway connector for Pittsburgh's northeastern suburbs. In Harmar Township, the route intersects with the Pennsylvania Turnpike. As the route leaves Allegheny for Butler County, Pittsburgh's suburban regions transition toward rural hills, and the freeway connection continues to 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...

.
U.S. Route 30- The famous Lincoln Highway enters Allegheny County from a sparsely portion of southern Beaver County. The first mile encompasses one of the few rural patches of Allegheny County, before the two-lane route becomes much more suburban. Soon, the highway becomes cosigned with US 22 in Findlay Township and then with Interstate 376 as it functions as a portion of the Parkway West. Along with its two associated routes, the highway travels onward through Downtown Pittsburgh and into the city's eastern suburbs as the Parkway East. In Forest Hills
Forest Hills, Pennsylvania
Forest Hills is a borough in Allegheny County, Pennsylvania, United States. The population was 6,518 at the 2010 census, as compared to 6,831 in 2000, and 7,335 in 1990.-Geography:Forest Hills is located at...

, the road becomes independent once again and transitions into a busy four-lane, business-lined highway. As it reaches the Westmoreland County line, suburbia continues to line the major highway all the way to 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 Route 43- A portion of the long planned Mon-Fayette Expressway, this toll highway remains incomplete in its goal to eventually connect Morgantown, West Virginia
Morgantown, West Virginia
Morgantown is a city in Monongalia County, West Virginia. It is the county seat of Monongalia County. Placed along the banks of the Monongahela River, Morgantown is the largest city in North-Central West Virginia, and the base of the Morgantown metropolitan area...

with Pittsburgh via the Monongahela Valley. The route enters the county from a small suburban corner of riverfront Washington County, then passes on a variety of viaducts on the rolling topography above the development of Jefferson Hills
Jefferson Hills, Pennsylvania
Jefferson Hills is a borough in Allegheny County, Pennsylvania, United States. It includes the community of "Large, Pennsylvania". As of the 2010 census the population was 10,619...

. The highway currently ends at a toll plaza and junction with Route 51. Future plans call for the route to be extended to I-376 in the eastern neighborhoods of Pittsburgh, all tough no timetable has been set for this expansion.
PA Route 48
PA Route 50
PA Route 51
PA Route 60
PA Route 60 Business (SR 3160)
PA Route 65
Interstate 76
Interstate 79
PA Route 88
PA Route 121
PA Route 130
PA Route 136
PA Route 148
PA Route 148 Truck (locally maintained)
Interstate 279
PA Route 286
PA Route 366
Interstate 376
PA Route 380 (SR 400)
Interstate 579
PA Route 791
PA Route 837
PA Route 885
PA Route 906
PA Route 910
PA Route 978
PA Route 980

Quadrant Routes

State Route	Name	From	To	Notes
State Route 1001	Butler Street, Bridge Street, Main Street, Freeport Road, Pittsburgh Street, Freeport Road, Seventh Avenue, Tenth Avenue, Freeport Road	PA Route 28 in Etna	Butler County	old PA Route 28
State Route 1002		PA Route 28 in O'Hara Township	SR 1001 in O'Hara Township	connection between new and old PA Route 28
State Route 1003	North Canal Street, Kittanning Pike, Dorseyville Road, Kittanning Street	SR 1001 in Sharpsburg	SR 4109 in Etna
State Route 1004	Seifried Lane, Kirkwood Drive	SR 1007 in O'Hara Township	SR 1003 in O'Hara Township
State Route 1005
State Route 1006
State Route 1007	Seifried Lane, Kirkwood Drive	Chartiers Run Rd in Chartiers TWP
State Route 1008
State Route 1009
State Route 1010
State Route 1011
State Route 1012
State Route 1013
State Route 1014
State Route 1015
State Route 1016
State Route 1017
State Route 1018
State Route 1019
State Route 1020
State Route 1021
State Route 1022
State Route 1023
State Route 1024
State Route 1025
State Route 1026
State Route 1027
State Route 1028
State Route 1029
State Route 1030
State Route 1031
State Route 1032
State Route 1033
State Route 1034
State Route 1035
State Route 1036
State Route 1037
State Route 1038
State Route 1039
State Route 1040
State Route 1045

State Route	Name	From	To
State Route 2001
State Route 2003
State Route 2004
State Route 2005
State Route 2006
State Route 2007
State Route 2008
State Route 2009
State Route 2010
State Route 2011
State Route 2013
State Route 2014
State Route 2015
State Route 2017
State Route 2018
State Route 2020
State Route 2021
State Route 2022
State Route 2023
State Route 2024
State Route 2025
State Route 2026
State Route 2027
State Route 2028
State Route 2030
State Route 2031
State Route 2032
State Route 2033
State Route 2034
State Route 2035
State Route 2036
State Route 2037
State Route 2038
State Route 2039
State Route 2040
State Route 2041
State Route 2042
State Route 2043
State Route 2044
State Route 2045
State Route 2046
State Route 2047
State Route 2048
State Route 2049
State Route 2050
State Route 2051
State Route 2052
State Route 2053
State Route 2054
State Route 2056
State Route 2057
State Route 2058
State Route 2059
State Route 2060
State Route 2061
State Route 2063
State Route 2064
State Route 2065
State Route 2066
State Route 2067
State Route 2068
State Route 2069
State Route 2070
State Route 2071
State Route 2072
State Route 2073
State Route 2074
State Route 2075
State Route 2076
State Route 2078
State Route 2079
State Route 2080
State Route 2081
State Route 2082
State Route 2083
State Route 2084
State Route 2085	Birmingham Bridge Birmingham Bridge The Birmingham Bridge is a tied arch bridge in Pittsburgh, Pennsylvania, which crosses over the Monongahela River. The bridge connects East Carson Street on the South Side with Fifth and Forbes Avenues going to Uptown, Oakland, and the Hill District.-History:The Birmingham Bridge was built in 1976...	PA Route 837	5th Avenue
State Route 2086
State Route 2087
State Route 2088
State Route 2090
State Route 2091
State Route 2093
State Route 2094
State Route 2095
State Route 2096
State Route 2097
State Route 2098
State Route 2099
State Route 2101
State Route 2102
State Route 2103	Bigelow Boulevard	bridge over Seventh Avenue (PA Route 380 east)
State Route 2104
State Route 2105
State Route 2106
State Route 2107
State Route 2108
State Route 2110
State Route 2112
State Route 2114
State Route 2116
State Route 2118
State Route 2120
State Route 2122
State Route 2124
State Route 2126
State Route 2128	Tenth Street Bypass	Interstate 279; U.S. Route 19 Truck U.S. Route 19 Truck (Pittsburgh, Pennsylvania) U.S. Route 19 Truck is a truck route route of U.S. Route 19 located in Western Pennsylvania in the Pittsburgh Metro Area that has a length of . It is a loop off US 19; the southern terminus located in Mt. Lebanon and the northern terminus in McCandless Township, connecting to US 19 at both ends...	Etna Street
State Route 2143
State Route 2144	Centre Avenue	bridge over Interstate 579 Interstate 579 Interstate 579 is a north–south Interstate Highway entirely within Pittsburgh, Pennsylvania. At long, it is short but not the shortest signed Interstate, an honor which belongs to I-375 in Michigan...
State Route 2146	Webster Avenue	bridge over Interstate 579 Interstate 579 Interstate 579 is a north–south Interstate Highway entirely within Pittsburgh, Pennsylvania. At long, it is short but not the shortest signed Interstate, an honor which belongs to I-375 in Michigan...
State Route 2152
State Route 2183
State Route 2208	Boulevard of the Allies Boulevard of the Allies The Boulevard of the Allies is a mostly four-lane road in the U.S. state of Pennsylvania, connecting Downtown Pittsburgh with the Oakland neighborhood of the city. Because of its lengthy name, locals often refer to it as simply "The Boulevard"....	Interstate 279; U.S. Route 19 Truck U.S. Route 19 Truck (Pittsburgh, Pennsylvania) U.S. Route 19 Truck is a truck route route of U.S. Route 19 located in Western Pennsylvania in the Pittsburgh Metro Area that has a length of . It is a loop off US 19; the southern terminus located in Mt. Lebanon and the northern terminus in McCandless Township, connecting to US 19 at both ends...	PA Route 885
State Route 2248
State Route 2308

State Route	Name	From	To	Notes
State Route 3001
State Route 3002
State Route 3003
State Route 3004
State Route 3005
State Route 3006	Boyce Rd., Upper St. Clair Township
State Route 3007
State Route 3008
State Route 3009
State Route 3010
State Route 3011
State Route 3012
State Route 3013
State Route 3014
State Route 3015
State Route 3016
State Route 3017
State Route 3018
State Route 3020
State Route 3021
State Route 3022
State Route 3023
State Route 3024
State Route 3025
State Route 3026
State Route 3027	Smithfield Street Bridge Smithfield Street Bridge The Smithfield Street Bridge is a lenticular truss bridge crossing the Monongahela River in Pittsburgh, Pennsylvania, USA.The bridge was designed by Gustav Lindenthal, the engineer who later designed the Hell Gate Bridge. The bridge was built between 1881–83, opening for traffic on March 19, 1883....	PA Route 837	SR 2208
State Route 3028
State Route 3029
State Route 3031
State Route 3032
State Route 3033
State Route 3034
State Route 3035
State Route 3036
State Route 3037
State Route 3038
State Route 3039
State Route 3041
State Route 3042	Mt. Lebanon Blvd.	Washington Rd. (U.S. 19) in Mt. Lebanon	Castle Shannon Blvd. in Castle Shannon
State Route 3043
State Route 3044
State Route 3045
State Route 3046
State Route 3048
State Route 3049
State Route 3050
State Route 3051
State Route 3052
State Route 3053
State Route 3054
State Route 3056
State Route 3057
State Route 3058
State Route 3059
State Route 3060
State Route 3061
State Route 3062
State Route 3063
State Route 3064
State Route 3066
State Route 3067
State Route 3069	Washington Road, West Liberty Avenue, Liberty Tunnel Liberty Tunnel The Liberty Tunnels are a pair of tunnels located in Pittsburgh, Pennsylvania that allow motorists to travel between the South Hills of Pittsburgh and the city, through Mt. Washington... , Liberty Bridge Liberty Bridge The following bridges are called the Liberty Bridge:Ponte della Libertà in VeniceLiberty Bridge Liberty Bridge Liberty Bridge at Falls Park on the Reedy *Liberty Bridge...	U.S. Route 19	Forbes Avenue	partly signed as U.S. Route 19 Truck U.S. Route 19 Truck (Pittsburgh, Pennsylvania) U.S. Route 19 Truck is a truck route route of U.S. Route 19 located in Western Pennsylvania in the Pittsburgh Metro Area that has a length of . It is a loop off US 19; the southern terminus located in Mt. Lebanon and the northern terminus in McCandless Township, connecting to US 19 at both ends...
State Route 3070
State Route 3071
State Route 3072
State Route 3073
State Route 3074
State Route 3075
State Route 3077
State Route 3078
State Route 3079
State Route 3080
State Route 3081
State Route 3082
State Route 3083
State Route 3084
State Route 3085
State Route 3087
State Route 3088
State Route 3089
State Route 3090
State Route 3091
State Route 3092
State Route 3093
State Route 3094
State Route 3095
State Route 3096
State Route 3097
State Route 3098
State Route 3099
State Route 3100
State Route 3101
State Route 3102
State Route 3103
State Route 3104
State Route 3105
State Route 3106	West Carson Street	PA Route 51	PA Route 837	tunnels under West End Circle
State Route 3107
State Route 3108
State Route 3109
State Route 3110
State Route 3111
State Route 3117
State Route 3119
State Route 3121
State Route 3123
State Route 3144
State Route 3147
State Route 3160
State Route 3170
State Route 3919
State Route 3921

State Route	Name	From	To	Notes
State Route 4001
State Route 4002
State Route 4003
State Route 4004
State Route 4006
State Route 4007
State Route 4008
State Route 4009
State Route 4010
State Route 4011
State Route 4012
State Route 4013
State Route 4014
State Route 4016
State Route 4017
State Route 4018
State Route 4019
State Route 4021
State Route 4022
State Route 4023
State Route 4024
State Route 4025
State Route 4026
State Route 4027
State Route 4028
State Route 4029
State Route 4030
State Route 4031
State Route 4032
State Route 4033
State Route 4034
State Route 4035
State Route 4036
State Route 4037
State Route 4039
State Route 4041
State Route 4042
State Route 4043
State Route 4044
State Route 4045
State Route 4046
State Route 4047
State Route 4048
State Route 4049
State Route 4050
State Route 4051
State Route 4052
State Route 4053
State Route 4054
State Route 4055
State Route 4056
State Route 4057
State Route 4058
State Route 4059
State Route 4060
State Route 4061
State Route 4062
State Route 4063
State Route 4064
State Route 4065
State Route 4067
State Route 4068
State Route 4069
State Route 4070
State Route 4072
State Route 4073
State Route 4076
State Route 4078
State Route 4080
State Route 4084	Western Avenue, Brighton Road, Ridge Avenue, Commons, East Ohio Street	U.S. Route 19; PA Route 65; SR 3919	PA Route 28	former PA Route 28
State Route 4086
State Route 4099
State Route 4133
State Route 4153
State Route 4154
State Route 4165
State Route 4265

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