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

US 22 EB

Unknown

Over: I 78 &T-572(TRI LEVEL)

FLYOVER I-78, Lehigh, PA

Built 1988 ADT: 13,763

US 22(LR 443 WB)

Unknown

Over: T-572(BLUE BARN RD.)

CHAPMAN EXIT, Lehigh, PA

Built 1958 ADT: 680

SR 22(LR 443)

Unknown

Over: SR 1002 (LR 443 PAR.EB)

CETRONIA EXIT, Lehigh, PA

Built 1958 ADT: 10,894

PA TPK (I-476)

Unknown

Over: SR 0022 (LR771)

LEHIGH VALLEY INTERCHANGE, Lehigh, PA

Built 1956 ADT: 28,875

US 22(LR 771)

Unknown

Over: PA 309(LR 39043)*

CRACKERSPORT INTERCHANGE, Lehigh, PA

Built 1973 ADT: 12,544

US 22(LR 771)

Unknown

Over: T-514(SPRINGHOUSE RD.)

US 22 OVER T-514, Lehigh, PA

Built 1953 ADT: 1,800

US 22(LR 771)

Unknown

Over: T-862(28TH ST.)

US 22 OVER 28TH ST., Lehigh, PA

Built 1953 ADT: 900

US 22(LR 771)

Unknown

Over: T-616(WHITEHALL AVE.)

US 22 OVER WHITEHALL AVE., Lehigh, PA

Built 1953 ADT: 1,450

US 22(LR 771)

Unknown

Over: LR 163* ROTH AVE.&19TH S

OVER 19TH ST./ ROTH AVE., Lehigh, PA

Built 1953 ADT: 8,156

US 22(LR 771)

Unknown

Over: TWP.RD.603* 15TH STREET

15TH ST.INTERCHANGE, Lehigh, PA

Built 1953 ADT: 12,500

US 22(LR 771)

Unknown

Over: TWP.RD.567* MICKLEY ROAD

0.7 M.E.OF 15TH ST.EXIT, Lehigh, PA

Built 1952 ADT: 200

US 22(LR 771)

Unknown

Over: T-638(IRVING ST.)

US 22 OVER IRVING ST., Lehigh, PA

Built 1952 ADT: 2,310

I 78(LR 443)

Unknown

Over: T-501(OLD 22)

NEW SMITHVILLE, Lehigh, PA

Built 1958 ADT: 1,548

I-78 (LR 443)

Unknown

Over: * SR3013 (LR 39082)

NEW SMITHVILLE, Lehigh, PA

Built 1958 ADT: 4,425

I78-US22 (LR443)

Unknown

Over: SR 3022 *(OLD 22)

2 MI.E.OF PA863, Lehigh, PA

Built 1958 ADT: 3,389

I-78(LR 1045)

Unknown

Over: PA 100(LR 672)

FOGELSVILLE INTERCHANGE, Lehigh, PA

Built 1958 ADT: 19,356

I-78 (LR 1045)

Unknown

Over: SR 3009 (RUPPSVILLE RD)

OVER RUPPSVILLE RD., Lehigh, PA

Built 1988 ADT: 5,829

I-78(LR 1045)

Unknown

Over: T-572(BLUE BARN RD.)

OVER BLUEBARN RD.(T-572), Lehigh, PA

Built 1988 ADT: 200

I 78(LR 1045)

Unknown

Over: SR 3008(CETRONIA RD)

OVER SR3008(CETRONIA RD), Lehigh, PA

Built 1988 ADT: 8,948

I 78(LR 1045)

Unknown

Over: SR 2015(SCHANTZ RD)39105

OVER SCHANTZ ROAD, Lehigh, PA

Built 1988 ADT: 6,028

I-78 (LR 1045)

Unknown

Over: PA 309(LR 781 SB)

OVER PA 309(LR 781), Lehigh, PA

Built 1989 ADT: 22,196

I-78(LR 1045)

Unknown

Over: US 222(LR 157)HAMILTON

US222 EXIT #54(16), Lehigh, PA

Built 1989 ADT: 9,658

SR2057(S.HILLVIEW)

Unknown

Over: I-78 and PA 309

HILLVIEW RD. OVER I-78, Lehigh, PA

Built 1988 ADT: 38,888

I-78 & PA.309

Unknown

Over: PA 29&SR1019 CEDAR CREST

CEDAR CREST,EXIT #55(17), Lehigh, PA

Built 1989 ADT: 11,836

I-78(LR 1045)

Unknown

Over: SR 2007 (LR 39016)

OVER OXFORD DRIVE, Lehigh, PA

Built 1989 ADT: 10,831

I- 78(LR 1045)

Unknown

Over: SR 2005 (LR 158)LEHIGH

LEHIGH ST.EXIT 57(18A), Lehigh, PA

Built 1989 ADT: 13,506

SR 309(LR 153)

Unknown

Over: I-78 (LR 1045)

PA.309 OVER I-78, Lehigh, PA

Built 1988 ADT: 27,603

PA 309 NB (LR 781)

Unknown

Over: SR 2023 (LR 39107)

PA.309NB OVER VERA CRUZ, Lehigh, PA

Built 1958 ADT: 8,307

SR 309(LR 781)

Unknown

Over: SR1002(TILGHMAN ST)LR443

TILGHMAN ST.INTERCHANGE, Lehigh, PA

Built 1958 ADT: 10,969

SR 378(LR1007SB)

Unknown

Over: SR1002(UNION BLVD.)LR159

AT CENTER CITY EXIT, Lehigh, PA

Built 1967 ADT: 11,917

SR 1031(14TH AVE.)

Unknown

Over: PA 378 &TRIB TO MONOCACY

14TH AVENUE, Lehigh, PA

Built 1967 ADT: 18,432

SR1018(EATON AVE.)

Unknown

Over: PA 378(LR1007),RC DITCH

PA 378 UNDER EATON AVE., Lehigh, PA

Built 1967 ADT: 18,432

PA 987 (LR 39031)

Unknown

Over: US 22(LR 771)

AIRPORT RD.INTERCHANGE, Lehigh, PA

Built 1973 ADT: 52,133

SR 1019 (LR 557)

Unknown

Over: US 22(LR 771)

CEDAR CREST INTERCHANGE, Lehigh, PA

Built 1953 ADT: 37,998

SR2038(LR 39076)

Unknown

Over: I-78(LR 1045)

OAKHURST DR. OVER I-78, Lehigh, PA

Built 1989 ADT: 27,603

SR 2055(LR158SP A)

Unknown

Over: LEHIGH CRK, CITY STREETS

ALBERTUS MEYERS BRIDGE, Lehigh, PA

Built 1913 ADT: 10,890

SR 3015 (LR 39047)

Unknown

Over: SR 0078(LR 443)

ADAMS RD.& WEISS RD., Lehigh, PA

Built 1958 ADT: 18,528

SR 4003 (LR39083)

Unknown

Over: SR 78 (LR 443)

KECKS ROAD OVER I-78, Lehigh, PA

Built 1958 ADT: 18,528

HAMILTON STREET

Unknown

Over: LEH.R., NS(0521) ALB.ST.

LEHIGH RIVER BRIDGE, Lehigh, PA

Built 1959 ADT: 200

4TH STREET

Unknown

Over: JORDAN CK & SUMNER AVE.

NORTH OF TILGHMAN STREET, Lehigh, PA

Built 1959 ADT: 2,000

HAMILTON STREET

Unknown

Over: UNION STREET RAMP

WEST OF RIVER BRIDGE, Lehigh, PA

Built 1959 ADT: 8,800

S.WALNUT STREET

Unknown

Over: TROUT CREEK & FACTORY ST

SLATINGTON, Lehigh, PA

Built 1925 ADT: 100

PA TPK (I-476)

Unknown

Over: SR2023, LR39017

1 MI SOUTH OF EMMAUS, Lehigh, PA

Built 1955 ADT: 2,218

PA TPK (I-476)

Unknown

Over: T-435

UPPER MILFORD TWP,EMMAUS, Lehigh, PA

Built 1955 ADT: 200

PA TPK (I-476)

Unknown

Over: SR 0029, LR158

EMMAUS BORO, Lehigh, PA

Built 1954 ADT: 22,023

SR0222, LR157

Unknown

Over: PA TPK (I-476)

ALLENTOWN, Lehigh, PA

Built 1956 ADT: 44,406

PA TPK (I-476)

Unknown

Over: SR 0022, LR 771

LEHIGH VALLEY INTERCHANGE, Lehigh, PA

Built 1955 ADT: 32,866

PA TPK (I-476)

Unknown

Over: T-593; LIME KILN RD

NEAR ALLENTOWN,OREFIELD, Lehigh, PA

Built 1955 ADT: 200

SR4003,LR39042

Unknown

Over: PA TPK (I-476)

NEAR ALLENTOWN,OREFIELD, Lehigh, PA

Built 1955 ADT: 30,563

SR 4006,LR 39041

Unknown

Over: PA TPK (I-476)

6 MI NORTH OF ALLENTOWN, Lehigh, PA

Built 1955 ADT: 30,563

Showing 1,151-1,200 of 14,867 bridges

Related

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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.