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

SR 0070

Unknown

Over: SR 0231

CLAYSVILLE BOROUGH, Washington, PA

Built 1960 ADT: 1,883

SR 0070

Unknown

Over: RAILROAD STREET (T-907)

DONEGAL TOWNSHIP, Washington, PA

Built 1960 ADT: 100

SR 0070

Unknown

Over: SR 0231

CLAYSVILLE BOROUGH, Washington, PA

Built 1960 ADT: 1,883

SR 0070

Unknown

Over: SR 3017 & BR. DUTCH FORK

DONEGAL TOWNSHIP, Washington, PA

Built 1960 ADT: 202

SR 0070

Unknown

Over: SR 3017 & BR. DUTCH FORK

DONEGAL TOWNSHIP, Washington, PA

Built 1960 ADT: 202

TOWNSHIP ROAD 472

Unknown

Over: SR 0070

BUFFALO TOWNSHIP, Washington, PA

Built 1960 ADT: 13,818

SR 0070

Unknown

Over: SR 3009 & BUFFALO CREEK

BUFFALO TOWNSHIP, Washington, PA

Built 1960 ADT: 246

SR 0070

Unknown

Over: SR 3009 & BUFFALO CREEK

BUFFALO TOWNSHIP, Washington, PA

Built 1960 ADT: 246

SR 3047 (T-474)

Unknown

Over: SR 0070

BUFFALO TOWNSHIP, Washington, PA

Built 1960 ADT: 13,818

SR 0070

Unknown

Over: SR 0221

BUFFALO TOWNSHIP, Washington, PA

Built 1960 ADT: 4,126

SR 0070

Unknown

Over: SR 0221

BUFFALO TOWNSHIP, Washington, PA

Built 1960 ADT: 4,126

SR 0070

Unknown

Over: TOWNSHIP ROAD 532

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 ADT: 150

SR 0070

Unknown

Over: TOWNSHIP ROAD 532

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 ADT: 150

TOWNSHIP ROAD 505

Unknown

Over: SR 0070

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 ADT: 15,181

SR 0070

Unknown

Over: SR 0040

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 ADT: 7,375

SR 0070

Unknown

Over: SR 0040

NORTH FRANKLIN TOWNSHIP, Washington, PA

Built 1960 ADT: 7,095

SR 0070

Unknown

Over: SR 4051 & Alghy Val R/R

CANTON TOWNSHIP, Washington, PA

Built 1960 ADT: 2,678

SR 0070

Unknown

Over: SR 4051 & Alghy Val R/R

CANTON TOWNSHIP, Washington, PA

Built 1960 ADT: 2,678

SR 0070

Unknown

Over: TWP RD 957 (OHIO AVE)

CANTON TOWNSHIP, Washington, PA

Built 1960 ADT: 250

SR 0070

Unknown

Over: TWP RD 957 (OHIO AVE)

CANTON TOWNSHIP, Washington, PA

Built 1960 ADT: 250

SR 0070

Unknown

Over: SR 0018 & CITY STREETS

CITY OF WASHINGTON, Washington, PA

Built 1993 ADT: 100

SR 0070

Unknown

Over: DONNAN AVENUE

CITY OF WASHINGTON, Washington, PA

Built 1960 ADT: 150

SR 0070

Unknown

Over: SR 0018 & CITY STREETS

CITY OF WASHINGTON, Washington, PA

Built 1993 ADT: 100

SR 0070

Unknown

Over: DONNAN AVENUE

CITY OF WASHINGTON, Washington, PA

Built 1960 ADT: 150

SR 0070

Unknown

Over: SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 ADT: 13,546

SR 0070

Unknown

Over: SR 1009

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 ADT: 8,413

SR 0070

Unknown

Over: SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 ADT: 13,546

SR 0070

Unknown

Over: SR 1009

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 ADT: 8,413

SR 0070

Unknown

Over: SR 0019

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 ADT: 10,413

SR 0070

Unknown

Over: SR 0019

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 ADT: 10,413

SR 0070

Unknown

Over: 0088, 0906, 2 R/R, MON

BELLE VERNON BRIDGE, Washington, PA

Built 1951 ADT: 2,310

SR 0079

Unknown

Over: SR 2020 & TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1998 ADT: 559

SR 0079

Unknown

Over: SR 2020 & TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1998 ADT: 559

SR 0079

Unknown

Over: TOWNSHIP ROAD 357

AMWELL TOWNSHIP, Washington, PA

Built 1966 ADT: 150

SR 0079

Unknown

Over: TOWNSHIP ROAD 357

AMWELL TOWNSHIP, Washington, PA

Built 1966 ADT: 150

TOWNSHIP ROAD 366

Unknown

Over: SR 0079

AMWELL TOWNSHIP, Washington, PA

Built 1966 ADT: 12,072

SR 0079

Unknown

Over: SR 1045

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1964 ADT: 3,519

SR 0079

Unknown

Over: SR 1045

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1964 ADT: 3,519

SR 0079

Unknown

Over: SR 1009

SOUTH STRABANE TWP, Washington, PA

Built 1964 ADT: 7,896

SR 0079

Unknown

Over: SR 1009

CHARTIERS & S. STRABANE, Washington, PA

Built 1964 ADT: 7,896

SR 0079

Unknown

Over: SR 0519

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1994 ADT: 14,687

SR 0079

Unknown

Over: SR 0519

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1993 ADT: 14,687

SR 0079

Unknown

Over: SR 0980

CANNONSBURG BOROUGH, Washington, PA

Built 1966 ADT: 3,813

SR 0079

Unknown

Over: SR 0980

CANNONSBURG BOROUGH, Washington, PA

Built 1966 ADT: 3,813

SR 0079

Unknown

Over: SR 1025

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1997 ADT: 12,452

SR 0079 NB

Unknown

Over: SR 1032

CECIL TOWNSHIP, Washington, PA

Built 1994 ADT: 4,051

SR 0079 SB

Unknown

Over: SR 1032

CECIL TOWNSHIP, Washington, PA

Built 1994 ADT: 4,051

SR 0088

Unknown

Over: PRIVATE ROAD TO FERRY

EAST BETHLEHEM TOWNSHIP, Washington, PA

Built 1966 ADT: 120

SR 1023

Unknown

Over: SR 0079

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1966 ADT: 20,874

SR 1035

Unknown

Over: SR 0079

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1965 ADT: 26,115

Showing 2,151-2,200 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.