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

SR4008

Unknown

Over: PA TURNPIKE (I-76)

2 MI NORTH OF NEWVILLE, Cumberland, PA

Built 2005

SR 0233 DOUBLING G

Unknown

Over: I-76 PA Turnpike

Lower Mifflin Township, Cumberland, PA

Built 2008 ADT: 18,892

SR4021 BLOSERVILLE

Unknown

Over: I-76 PA TPK MP (215.96)

2.5 M. S. OF BLOSERVILLE, Cumberland, PA

Built 2009

PA TPK (I-76)

Unknown

Over: SR 0015, LR123 (US 15)

UPPER ALLEN TWP, Cumberland, PA

Built 2007 ADT: 26,640

PA TPK (I-76)

Unknown

Over: SR 0015, LR123 (US 15)

UPPER ALLEN TWP, Cumberland, PA

Built 2007 ADT: 48,628

US15

Unknown

Over: Lower Allen Dr/T618

Capital City Mall, Cumberland, PA

Built 2010 ADT: 5,039

US 15

Unknown

Over: SR 2014 Simpson Ferry

Outside Camp Hill, Cumberland, PA

Built 2010 ADT: 10,014

US Rte 11

Unknown

Over: SR 0581 E & W

Camp Hill Boro, Cumberland, PA

Built 2010 ADT: 2,601

PA TPK (I-76)

Unknown

Over: SR 4008, LR21036

Lower Mifflin Twp, Cumberland, PA

Built 2009 ADT: 569

I-81 NB; SR 0081

Unknown

Over: PA 465; SR 0465

1 MI. S. OF CARLISLE, Cumberland, PA

Built 2011 ADT: 4,441

I-81 SB; SR 0081

Unknown

Over: PA 465; SR 0465

1 MI. S. OF CARLISLE, Cumberland, PA

Built 2011 ADT: 3,309

SR 2028

Unknown

Over: I-83, SR 0083

LEMOYNE WEST OF LR250, Cumberland, PA

Built 2013 ADT: 19,187

PA TPK (I-76)

Unknown

Over: SR 4006

Upper Mifflin Twp., Cumberland, PA

Built 2014 ADT: 1,192

PA TPK (I76)

Unknown

Over: SR 4013

Upper Mifflin Twp., Cumberland, PA

Built 2014 ADT: 930

PA TPK (I-76)

Unknown

Over: SR 0034

North Middleton Twp., Cumberland, PA

Built 2017 ADT: 11,719

PA TPK (I-76)

Unknown

Over: LR21032, SR0074

North Middleton Twp., Cumberland, PA

Built 2017 ADT: 3,216

PA TPK (I-76)

Unknown

Over: SR 0011, LR 34

Middlesex Twp., Cumberland, PA

Built 2017 ADT: 12,240

PA TPK (I-76)

Unknown

Over: SR4007 MOUNTAIN RD

UPPER MIFFLIN TWP, Cumberland, PA

Built 2018 ADT: 393

US 11 & 15,SR 0011

Unknown

Over: US 22 & 322, SR 0022

2 MI N OF CLARKS FERRY, Dauphin, PA

Built 1959 ADT: 13,076

US 22/322 EB;SR 22

Unknown

Over: SUSQ R; SR 0147 SB, RP

CLARKS FERRY, Dauphin, PA

Built 1986 ADT: 2,153

US 22/322 WB;SR 22

Unknown

Over: SUSQ. R.; SR 0147 SB, RP

.5 MI. EAST OF DUNCANNON, Dauphin, PA

Built 1986 ADT: 2,015

ALLEGHENY STREET

Unknown

Over: SUSQUEHANNA STREET

200 FT NW OF SR 0322, Dauphin, PA

Built 1942 ADT: 10

US 22/322 EB

Unknown

Over: T-509

ROCKVILLE, Dauphin, PA

Built 1977 ADT: 1

US 22/322 WB

Unknown

Over: T-509

ROCKVILLE, Dauphin, PA

Built 1977 ADT: 1

US 22 EB; SR 0022

Unknown

Over: SR 0081; SR 8003 RP A@B

INTER OF I81 & US22, Dauphin, PA

Built 1977 ADT: 2,859

US 22 WB; SR 0022

Unknown

Over: I-81; SR 8003 RP A@B

INTER OF I81 & US22, Dauphin, PA

Built 1977 ADT: 2,859

PA 39; SR 0039

Unknown

Over: I-81; SR 0081

3MI E OF LINGLESTOWN, Dauphin, PA

Built 1967 ADT: 27,246

I-81; SR 0081

Unknown

Over: SR 3009 NB FRONT ST

SUSQUEHANNA TWP., Dauphin, PA

Built 1972 ADT: 5,098

I-81; SR 0081

Unknown

Over: NORFOLK SOUTHERN, T-310

CITY OF HARRISBURG, Dauphin, PA

Built 1972 ADT: 1

I-81 NB; SR 0081

Unknown

Over: INDUSTRIAL HIGHWAY

OVER INDUSTRIAL HWY., Dauphin, PA

Built 1975 ADT: 1

I-81 SB; SR 0081

Unknown

Over: INDUSTRAIL HIGHWAY

OVER IND. HIGHWAY, Dauphin, PA

Built 1975 ADT: 1

I-81 NB; SR 0081

Unknown

Over: TWP RD 318; KOHN RD

1.5 MI.N.OF PROGRESS, Dauphin, PA

Built 1969 ADT: 1

I-81 SB; SR 0081

Unknown

Over: TWP RD 318; KOHN RD

1.5 MI.N. PROGRESS, Dauphin, PA

Built 1969 ADT: 28,443

I-81 NB; SR 0081

Unknown

Over: SR 3015

1 MI.N.OF PROGRESS, Dauphin, PA

Built 1969 ADT: 5,945

I-81 SB; SR 0081

Unknown

Over: SR 3015

1 MI. N. PROGRESS, Dauphin, PA

Built 1969 ADT: 5,945

I-81 NB; SR 0081

Unknown

Over: TWP RD 432

1 MI. N. PROGRESS, Dauphin, PA

Built 1969

T-505

Unknown

Over: I-81; SR 0081

PAXTONIA, Dauphin, PA

Built 1969 ADT: 27,246

I-81 NB; SR 0081

Unknown

Over: T-561 Blue Ridge Ave.

1 MI. S.E. LINGLESTOWN, Dauphin, PA

Built 1969 ADT: 2,600

I-81 SB; SR 0081

Unknown

Over: TWP RD 465

2.5 MI. E. LINGLESTOWN, Dauphin, PA

Built 1969 ADT: 7,486

I-81 SB; SR 0081

Unknown

Over: SR 2017

SHELLSVILLE, Dauphin, PA

Built 1966 ADT: 711

I-81 NB; SR 0081

Unknown

Over: SR 2015

1 MI. E. SHELLSVILLE, Dauphin, PA

Built 1967 ADT: 396

I-81; SR 0081

Unknown

Over: SR 2015 MANADA GAP RD

1 MI.E. OF SHELLSVILLE, Dauphin, PA

Built 1967 ADT: 396

I-81 NB; SR 0081

Unknown

Over: TWP RD 523

2 MI E SHELLSVILLE, Dauphin, PA

Built 1968 ADT: 1

I-81 SB; SR 0081

Unknown

Over: TWP RD 523

GRANTVILLE, Dauphin, PA

Built 1968 ADT: 1

T-525; BOW CK RD

Unknown

Over: I-81; SR 0081

GRANTVILLE, Dauphin, PA

Built 1968 ADT: 25,043

T606;FIRE HOUSE RD

Unknown

Over: I-81; SR 0081

0.5 MI. N. OF GRANTVILLE, Dauphin, PA

Built 1968 ADT: 25,043

SR 0083; I-83

Unknown

Over: SUSQ.RIVER;R.R.LOWTHER S

JOHN HARRIS BRIDGE; I-83, Dauphin, PA

Built 1960 ADT: 150

I-83; SR 0083

Unknown

Over: PA 230;NS;RP B,C;FRONT

SOUTH HARRISBURG, Dauphin, PA

Built 1960 ADT: 15,000

13TH STREET

Unknown

Over: SR 0083; I-83

13TH ST. OVER I-83, Dauphin, PA

Built 1981 ADT: 43,872

I-83 NB; SR 0083

Unknown

Over: US322&RE;I283S;RA;SR3001

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 ADT: 13,464

Showing 501-550 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.