State profile · Above national median SD

Pennsylvania bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Pennsylvania — drawn straight from the FHWA National Bridge Inventory.

14,867
Public bridges
37.4%
Good condition
10.5%
Poor condition
10.5%
Structurally deficient

Total Bridges

14,867

Public highway bridges in Pennsylvania

Good Condition

37.4%

5,564 bridges rated 7-9

-12.6pp vs 50% benchmark

Poor Condition

10.5%

1,561 bridges rated 0-4

Structurally Deficient

10.5%

1,561 bridges flagged for repair priority

3.5pp vs national avg 7.0%

Pennsylvania vs national bridge condition

Pennsylvania — Good condition share 37.4%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania — Structurally deficient share 35.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Pennsylvania (FHWA NBI)

Pennsylvania37.42516983924127%35.29965695836416%10.499764579269524%10.499764579269524%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Pennsylvania (FHWA NBI)

Counties (67)

Adams 94 Allegheny 356 Armstrong 109 Beaver 84 Bedford 99 Berks 187 Blair 83 Bradford 114 Bucks 184 Butler 142 Cambria 67 Cameron 21 Carbon 29 Centre 183 Chester 285 Clarion 119 Clearfield 195 Clinton 147 Columbia 187 Crawford 263 Cumberland 239 Dauphin 283 Delaware 269 Elk 95 Erie 331 Fayette 341 Forest 51 Franklin 215 Fulton 97 Greene 209 Huntingdon 162 Indiana 214 Jefferson 140 Juniata 109 Lackawanna 212 Lancaster 509 Lawrence 162 Lebanon 221 Lehigh 255 Luzerne 307 Lycoming 301 McKean 166 Mercer 273 Mifflin 129 Monroe 214 Montgomery 608 Montour 74 Northampton 253 Northumberland 193 Perry 102 Philadelphia 584 Pike 108 Potter 145 Schuylkill 199 Snyder 106 Somerset 400 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 619 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Pennsylvania on the same metric.

26

Michigan

8.92% top marginal rate
Structure
Progressive
Burden @ $100K
$1,188

02

Alaska

10.12% top marginal rate
Structure
Progressive
Burden @ $100K
$909
Selected

42

Pennsylvania

10.50% top marginal rate
Structure
Progressive
Burden @ $100K
$14,867

38

North Dakota

10.84% top marginal rate
Structure
Progressive
Burden @ $100K
$4,242

22

Louisiana

11.00% top marginal rate
Structure
Progressive
Burden @ $100K
$12,699

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by composite NBI rating. Each is inspected at least every 24 months.

SR0286

Poor

Over: KISKIMINETAS RIVER

SALTSBURG, Indiana, PA

Built 1985 Load: 0.9 t ADT: 4,169

T-783 HARRIS HILL

Structurally Deficient

Over: TOBYS CREEK

100 FT NE OF SR 309, Luzerne, PA

Built 1920 Load: 0.9 t ADT: 220

BRIDGE 2805,T-303

Structurally Deficient

Over: OVER SHENANGO RIVER TRIB

HEASLEY RD SHENANGO TWP, Mercer, PA

Built 1922 Load: 0.9 t ADT: 89

SR 3014

Poor

Over: LAUREL HILL CREEK

BARRONVALE, Somerset, PA

Built 1962 Load: 0.9 t ADT: 167

Clark Street

Structurally Deficient

Over: Fallen Timber Run

Clark St, Hooversville, Somerset, PA

Built 1910 Load: 0.9 t ADT: 100

SR 4012

Structurally Deficient

Over: LOYALSOCK CREEK

BORO OF FORKSVILLE, Sullivan, PA

Built 1850 Load: 0.9 t ADT: 137

All Bridges in Pennsylvania

PA TPK (I-576)

Unknown

Over: SR 0030

FINDLAY, Allegheny, PA

Built 2006 ADT: 1,429

PA TPK (I-576)

Unknown

Over: SR 0030

FINDLAY, Allegheny, PA

Built 2006 ADT: 1,429

PA TPK (I-576)

Unknown

Over: SR 60, RAMPS C, MT-B, KL

FINDLAY TWP, Allegheny, PA

Built 2006 ADT: 19,916

PA TPK (I-576)

Unknown

Over: SR 376, RAMPS, RD, STRM

FINDLAY, Allegheny, PA

Built 2006

PA TPK (I-576)

Unknown

Over: SR 0060, RAMPS, RD, STRM

FINDLAY, Allegheny, PA

Built 2006 ADT: 4,073

Hulton Rd

Unknown

Over: Turnpike, B&LE RR

Beside Oakmont Golf Club, Allegheny, PA

Built 2007 ADT: 1

FRANKLIN ROAD

Unknown

Over: PA TURNPIKE

500 FT N OF WARRENDALE RD, Allegheny, PA

Built 2006 ADT: 999

Rochester Road

Unknown

Over: SR 0079 NB SB

NEAR I-79-I-279 JUNCTION, Allegheny, PA

Built 2007 ADT: 21,278

First Street

Unknown

Over: SR 65 N-S RR

Mike Maruca Memorial Br, Allegheny, PA

Built 2007 ADT: 8,792

OLD NORTHERN PIKE

Unknown

Over: SR 2048 (BUSINESS RT. 22

150'N.OF MONROEVILLE BLVD, Allegheny, PA

Built 2007 ADT: 10,975

28-279 CONNECTOR

Unknown

Over: SR 279 AND MADISON AVE

NORTH SIDE, Allegheny, PA

Built 2008 ADT: 638

SR 8009 RAMP G

Unknown

Over: I-79,376E&W, CAMBLS RNRD

79/376 INTERCHANGE, Allegheny, PA

Built 2008 ADT: 4,990

SR 8009 RAMP H

Unknown

Over: CAMPBELL RUN RD AND RUN

79/376 INTERCHANGE, Allegheny, PA

Built 2008 ADT: 100

GIBSONIA ROAD

Unknown

Over: PA TURNPIKE

OVER PA TURNPIKE, Allegheny, PA

Built 2008 ADT: 2

BL OF THE ALLIES

Unknown

Over: FORBES AV, MAURICE ST

1 MILE E OF BIRMINGHAM BR, Allegheny, PA

Built 2008

HIGHLAND PARK APPR

Unknown

Over: SR 0008

Highland Park Bridge, Allegheny, PA

Built 1940 ADT: 14,090

SR 51 North Bound

Unknown

Over: SR 837, NSRR, Local Rd.

Elizabeth Bridge, Allegheny, PA

Built 1951 ADT: 9,655

PA TPK (I-576)

Unknown

Over: McCASLIN RD, ENLOW RUN

FINDLAY, Allegheny, PA

Built 2006

PA TPK (I-576)

Unknown

Over: T-439 BALD KNOB ROAD

FINDLAY TWP, Allegheny, PA

Built 2006 ADT: 130

PA PTK (I-576), WB

Unknown

Over: T-439 BALD KNOB ROAD

FINDLAY TWP, Allegheny, PA

Built 2006 ADT: 200

PA TPK (I-576)

Unknown

Over: MCCASLIN RUN, ENLOW RUN

FINDLAY TWP, Allegheny, PA

Built 2006

PA TPK (I-576)

Unknown

Over: MCCASLIN RD, ENLOW RUN

FINDLAY TWP, Allegheny, PA

Built 2006

FOREST GROVE RD

Unknown

Over: SR 0079 NB-SB

M0008 MOON RUN NO. 8, Allegheny, PA

Built 2009 ADT: 22,672

SR 19

Unknown

Over: SR 60 @ SR 19 INTER

SR 19 OVER S.MAIN ST, Allegheny, PA

Built 2010 ADT: 15,042

SR 0051 SB

Unknown

Over: SOUTH MAIN STREET

WEST END, Allegheny, PA

Built 2010 ADT: 15,042

GREENSBURG PIKE

Unknown

Over: LINCOLN HIGHWAY

GREENSBURG PIKE O/ RT 30, Allegheny, PA

Built 2010 ADT: 9,566

PA TPK (I-76) WB

Unknown

Over: SR1001, N.S., AV. R

Allegheny River, Allegheny, PA

Built 2010 ADT: 7,350

PA TPK (I-76) EB

Unknown

Over: SR 1001, N.S. & A.V. RR

Allegheny River, Allegheny, PA

Built 2010 ADT: 7,350

KELSO ROAD

Unknown

Over: SR 22 EB WB

SR 3051 OVER SR 22, Allegheny, PA

Built 2011 ADT: 10,781

MONTOUR CHURCH RD

Unknown

Over: SR 22

TWP RD 430 OVER SR 22, Allegheny, PA

Built 2011 ADT: 11,043

INTERSTATE 376

Unknown

Over: BUSINESS RT. 22

NEAR TURNPIKE INT., Allegheny, PA

Built 2011 ADT: 15,041

PA TPK (I-76)

Unknown

Over: SR 4063, LR 02141

West of Gibsonia, Allegheny, PA

Built 2012 ADT: 4,698

PA TPK (I-76)

Unknown

Over: SR 4068

East of Warrendale, Allegheny, PA

Built 2012 ADT: 10,514

LINCOLN HIGHWAY

Unknown

Over: ELECTRIC AVE.

.5 MI.W. WESTINGHOUSE BR., Allegheny, PA

Built 2012 ADT: 2,743

Fancourt Street

Unknown

Over: Tenth St. Bypass

143 10th St Bypass off Ft, Allegheny, PA

Built 2012 ADT: 10,783

LINCOLN HIGHWAY

Unknown

Over: SR 2112 ELECTRIC AVE

.5 MI.W.WESTINGHOUSE BR., Allegheny, PA

Built 2013 ADT: 2,743

ECONOMY GRADE ROAD

Unknown

Over: SR 0376 EB WB

1 MI S Beaver Co. Line, Allegheny, PA

Built 2016 ADT: 16,343

Flaugherty Run Rd.

Unknown

Over: SR 3160 - Business 376

1 Mi North of Old Airport, Allegheny, PA

Built 2017 ADT: 3,921

Greenfield Ave

Unknown

Over: I-376 Parkway East

039 Greenfield Bridge, Allegheny, PA

Built 2017 ADT: 42,691

SHALER STREET

Unknown

Over: SR 19

1/4 MI NW OF I-376, Allegheny, PA

Built 2019 ADT: 13,157

I-376 EB

Unknown

Over: MON RIVER & WARF, 376 WB

Fort Pitt Bridge, Allegheny, PA

Built 1953 ADT: 52,977

PA TPK (I-76)

Unknown

Over: SR 0019, US19

WEST OF WARRENDALE, Allegheny, PA

Built 2021 ADT: 11,011

SR0028 SB

Unknown

Over: SR3023

IRON BRIDGE ROAD SB, Armstrong, PA

Built 1971 ADT: 297

SR0422 EB&WB

Unknown

Over: ALLEG RIV/3001/2011/RR

JUDGE J.FRANK GRAFF, Armstrong, PA

Built 1974 ADT: 148

SR3021 (T-810)

Unknown

Over: SR0028 NB&SB

FURNACE RUN ROAD, Armstrong, PA

Built 1971 ADT: 6,641

SR0422 EB

Unknown

Over: T-530 & TR GARRETTS RUN

HAWK HOLLOW EB, Armstrong, PA

Built 2001 ADT: 100

SR0422 WB

Unknown

Over: T-530 & TR GARRETTS RUN

HAWK HOLLOW WB, Armstrong, PA

Built 2001 ADT: 100

SR0422

Unknown

Over: SR0028 NB&SB

CADET, Armstrong, PA

Built 2001 ADT: 8,294

NJTPK(I-95 PA EXT)

Unknown

Over: DELAWARE RIVER & ROADS

2.25 MI E OF TPK&RT130 JC, Armstrong, PA

Built 1956 ADT: 4,136

SR 8010

Unknown

Over: SR 0422 EB & WB

Inter. SR 422 & SR 8010, Armstrong, PA

Built 2015 ADT: 7,771

Showing 51-100 of 14,867 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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