Allegheny County, PA

356 public highway bridges

Allegheny County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Allegheny County, Pennsylvania contains 356 public highway bridges. Roughly 48.9% are rated “Good,” 21.3% “Fair,” and 4.5% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

356
Total Bridges
48.9%
Good
21.3%
Fair
4.5%
Poor Condition

Condition Distribution

Good
48.9% (174)
Fair
21.3% (76)
Poor
4.5% (16)

All Bridges (356)

SR 0910

Good

Over: PA TPK (I-76)

Near Dorseyville, Allegheny, PA

Built 2015 Load: 47.2 t ADT: 5,608

Ripple Rd

Good

Over: LONG RUN

500 Southeast of SR 0048, Allegheny, PA

Built 2015 Load: 47.3 t ADT: 6,829

SAXONBURG BLVD

Good

Over: Little Pine Creek

1 MI. N.E. of SR 0008, Allegheny, PA

Built 2016 Load: 47.3 t ADT: 3,085

MONON ROAD

Good

Over: BECKETS RUN

100' SW OF TWP RD 636, Allegheny, PA

Built 2011 Load: 48.1 t ADT: 4,283

RAMP T

Good

Over: ELDER ST, TURTLE CRK, RR

TriBoro Expressway, Allegheny, PA

Built 2013 Load: 48.3 t ADT: 3,141

KELSO RD

Good

Over: N BRANCH OF ROBINSON RUN

150' NW OF SR 3108, Allegheny, PA

Built 2010 Load: 49.0 t ADT: 746

Bakerstown Rd

Good

Over: Lardintown Run

200' West of SR 1031, Allegheny, PA

Built 2015 Load: 49.2 t ADT: 3,497

Lovedale Road

Good

Over: Wylie Run

85' NE of Eliz-Linc. Line, Allegheny, PA

Built 2017 Load: 49.2 t ADT: 7,121

SR 885

Good

Over: BLUFF

Blvd of The Allies Bluffs, Allegheny, PA

Built 2001 Load: 49.9 t ADT: 28,222

JUGHANDLE

Good

Over: WEYMAN RUN

51/88 INTERCHANGE JUGHAND, Allegheny, PA

Built 2014 Load: 49.9 t ADT: 3,435

PETER CK RD EXT

Good

Over: LICK RUN

1000 FT NW OF SR 3017, Allegheny, PA

Built 1999 Load: 50.8 t ADT: 675

HOT METAL STREET

Good

Over: CSX RAILROAD TUNNEL

147 Hot Metal St Bridge, Allegheny, PA

Built 2000 Load: 50.8 t ADT: 17,500

HOOKSTOWN GRADE RD

Good

Over: RAREDON RUN

ALLEGHENY-BEAVER CO. LINE, Allegheny, PA

Built 2002 Load: 50.8 t ADT: 291

SR 28 NB

Good

Over: CSX (AVRR)

0.25 MI SOUTH OF SR 8, Allegheny, PA

Built 2010 Load: 50.8 t ADT: 28,232

NORTH BRANCH ROAD

Good

Over: Br. Robinson Run

50FT W OF SR 3063, Allegheny, PA

Built 2009 Load: 51.7 t ADT: 5,639

Library Rd.

Good

Over: Saw Mill Run

SR 51 and SR 88 Intersect, Allegheny, PA

Built 2015 Load: 51.8 t ADT: 21,171

Little Pine Crk Rd

Good

Over: LITTLE PINE CREEK

NEAR TOWNSHIP GARAGE, Allegheny, PA

Built 2015 Load: 51.8 t ADT: 1,904

Grant Ave

Good

Over: Pine Creek

200' W of rte 8 millvale, Allegheny, PA

Built 2007 Load: 54.4 t ADT: 10,338

Piney Fork Rd

Good

Over: Piney Fork Creek

3/4 MI NW of SR 3015, Allegheny, PA

Built 2015 Load: 54.4 t ADT: 675

Saw Mill Run Blvd

Good

Over: Weyman Run

120' south of Provost Rd, Allegheny, PA

Built 2015 Load: 55.7 t ADT: 22,106

SCOTIA HOLLOW RD

Good

Over: SCOTIA RUN

XC01 Scotia Hollow Bridge, Allegheny, PA

Built 2008 Load: 56.2 t ADT: 4,100

MOUNT ROYAL BLVD

Good

Over: CSX RR

NEAR DUNCAN AVE, Allegheny, PA

Built 2001 Load: 57.2 t ADT: 4,160

RAMP F

Good

Over: Chartiers Creek, WERR

BRIDGEVILLE INTERCHANGE, Allegheny, PA

Built 2008 Load: 57.2 t ADT: 6,256

WEST OHIO ST

Good

Over: NORFOLK SOUTHERN R/R

118 West Ohio St Bridge, Allegheny, PA

Built 1903 Load: 57.7 t ADT: 3,479

CAMPBELLS RUN RD

Good

Over: Campbell's Run

CM06 .2 MI E/KEINERS LN, Allegheny, PA

Built 2022 Load: 58.1 t ADT: 6,125

Jones Avenue

Good

Over: Thompson Run East Branch

TE02 THOMPSON,E.S. NO 2, Allegheny, PA

Built 2022 Load: 59.0 t ADT: 462

S.R 8041 CONNECTOR

Good

Over: RAMP N TO MON WHARF

EASTBOUND CONNECTOR RAMP, Allegheny, PA

Built 1940 Load: 60.8 t ADT: 3,074

PA TPK(I-576), EB

Good

Over: TR TO POTATO GARDEN RUN

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 63.5 t ADT: 2,025

PA PTK (I-576), WB

Good

Over: TR TO POTATO GARDEN RUN

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 63.5 t ADT: 2,025

MILLER'S RUN ROAD

Good

Over: MILLER'S RUN

0.7 MI W OF SR0050, Allegheny, PA

Built 2009 Load: 63.5 t ADT: 4,718

Baptist Road

Good

Over: W & LE Railroad

Baptist Road over RR, Allegheny, PA

Built 2008 Load: 65.3 t ADT: 14,037

CLAIRTON BLVD

Good

Over: LEWIS RUN

1.5 MILE NORTH OF SR2030, Allegheny, PA

Built 1999 Load: 81.6 t ADT: 23,832

STREETS RUN RD

Good

Over: STREETS RUN

AT INTER. PROSPECT RD, Allegheny, PA

Built 2010 Load: 83.5 t ADT: 16,138

LOVEDALE ROAD

Good

Over: OVER BRANCH OF WYLIE RUN

ELIZABETH, Allegheny, PA

Built 2010 Load: 85.3 t ADT: 7,888

S.R. 19

Good

Over: SR 837

150' SOUTH OF W. END BR., Allegheny, PA

Built 2003 Load: 92.5 t ADT: 14,476

SR 0050 SH

Good

Over: MILLERS RUN

1/2 MI FROM WASH CO LINE, Allegheny, PA

Built 1972 Load: 99.8 t ADT: 11,250

SAW MILL RUN BLVD

Good

Over: SAW MILL RUN

NEAR BAUSMAN ST, Allegheny, PA

Built 1999 Load: 99.8 t ADT: 47,071

SAW MILL RUN BLVD

Good

Over: SAW MILL RUN

AT WARRINGTON AVE, Allegheny, PA

Built 1999 Load: 99.8 t ADT: 38,563

RAMP A

Good

Over: BRANCH OF MCCLAREN RUN

1300 FT SOUTH OF EWING RD, Allegheny, PA

Built 1997 Load: 99.8 t ADT: 2,816

Summit Dr.

Good

Over: Pine Creek

93' E from Wexford Run Rd, Allegheny, PA

Built 1975 Load: 99.8 t ADT: 100

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25' FROM NORTH AV, Allegheny, PA

Built 1911 ADT: 50

OLD FREEPORT ROAD

Poor

Over: SYCAMORE RUN

SQ01 SYCAMORE RUN NO. 1, Allegheny, PA

Built 1982 Load: 14.5 t ADT: 825

WALL AV

Poor

Over: DIRTY CAMP RUN

453004 PITCAIRN BOROUGH, Allegheny, PA

Built 1900 Load: 16.3 t ADT: 5,000

MCLAUGHLIN RUN RD

Poor

Over: MCLAUGHLIN RUN

1/2 MI.E.OF BOWER HILL RD, Allegheny, PA

Built 1900 Load: 19.1 t ADT: 5,590

Kay Street

Poor

Over: Little Pine Creek

500 FT FROM SR 1013, Allegheny, PA

Built 1970 Load: 20.0 t ADT: 50

SUMMIT PARK DRIVE

Poor

Over: MONTOUR TRAIL & RUN

.3 MI SW OF US RT 60, Allegheny, PA

Built 1989 Load: 27.2 t ADT: 10,000

EAST MAIN STREET

Poor

Over: CHARTIERS CREEK

1/4 MILE SW CARNEGIE, Allegheny, PA

Built 1934 Load: 27.2 t ADT: 1,200

BOOKER ST

Poor

Over: PUCKETA CREEK

PO05 PUCKETA CREEK # 5, Allegheny, PA

Built 1965 Load: 30.8 t ADT: 366

COCHRANS MILLS RD

Poor

Over: LICK RUN CREEK

0.5 MI S BUREAU OF MINES, Allegheny, PA

Built 1901 Load: 32.7 t ADT: 1,115

PRESTO SYGAN ROAD

Poor

Over: BRANCH MILLERS RUN

300' NORTH OF SR50, Allegheny, PA

Built 1942 Load: 32.7 t ADT: 3,041

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.