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

I-83; SR 0083

Unknown

Over: SR 3012

.5 MI.E. OF LAWNTON, Dauphin, PA

Built 1970 ADT: 15,247

I-83; SR 0083

Unknown

Over: SR 3001

.5 MI.E. OF LAWNTON, Dauphin, PA

Built 1970 ADT: 14,110

I-83; SR 0083

Unknown

Over: TWP RD 369 & SPRNG CRK.R

0.7 MI N OF EXIT-28;I-83, Dauphin, PA

Built 1953 ADT: 1

I-83; SR 0083

Unknown

Over: TWP RD 392,PEIFFER LANE

S. OF UNION DEPOSIT, Dauphin, PA

Built 1994 ADT: 1

I-83 SB; SR 0083

Unknown

Over: SR 0081 NB & SR 0083 NB

UPPER LEVEL (3LEV CROSS), Dauphin, PA

Built 1969 ADT: 28,641

I-83 SB; SR 0083

Unknown

Over: CRUMS MILL ROAD; T-432

1 MI.N. PROGRESS, Dauphin, PA

Built 1969 ADT: 1

I-283 NB; SR 0283

Unknown

Over: SR 3002

1 MI.N. OF HIGHSPIRE, Dauphin, PA

Built 1969 ADT: 2,860

I-283 SB; SR 0283

Unknown

Over: SR 3002

2 MI.N.HIGHSPIRE, Dauphin, PA

Built 1969 ADT: 2,860

I-283 NB; SR 0283

Unknown

Over: SR 0322 WB; RAMP K

EISENHOWER, Dauphin, PA

Built 1970 ADT: 4,123

I-283 SB; SR 0283

Unknown

Over: SR 8027, RAMP A

EISENHOWER, Dauphin, PA

Built 1970 ADT: 12,827

PA 283; SR 0300

Unknown

Over: I-283; SR 0283

1 MI N HIGHSPIRE, Dauphin, PA

Built 1969 ADT: 22,317

PA 283; SR 0300

Unknown

Over: SWATARA CR;M&H R/R;T-496

2 MI. N. MIDDLETOWN, Dauphin, PA

Built 1971 ADT: 1

PA 283 EB; SR 0300

Unknown

Over: PENNA TURNPIKE I-76

2 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 ADT: 24,423

PA 283 WB; SR 0300

Unknown

Over: PENNA TURNPIKE I-76

2 MI. N.E. OF MIDDLETOWN, Dauphin, PA

Built 1969 ADT: 24,423

PA 283; SR 0300 WB

Unknown

Over: PA 341; COLEBROOK RD.

2 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 ADT: 1,994

PA 283 WB; SR 0300

Unknown

Over: TWP RD 564

5 MI E. MIDDLETOWN, Dauphin, PA

Built 1968 ADT: 1

PA 283 EB; SR 0300

Unknown

Over: TWP RD 602

6 MI. E. OF MIDDLETOWN, Dauphin, PA

Built 1968 ADT: 1

US 322; SR 0322

Unknown

Over: SR 3001, I-283, RP.A&K

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 ADT: 11,255

T-390/FDDLRS ELBOW

Unknown

Over: US 322; SR 0322

1 MI W OF HUMMELSTOWN, Dauphin, PA

Built 1953 ADT: 22,954

US 422; SR 0422

Unknown

Over: US 322; SR 0322

1 MI. E. HUMMELSTOWN, Dauphin, PA

Built 1953 ADT: 11,809

PA 441; SR 0441

Unknown

Over: PA 283; SR 0300

2MILE N E OF HIGHSPIRE, Dauphin, PA

Built 1971 ADT: 27,820

PA 441; LINDLE RD.

Unknown

Over: I-283; SR 0283

2MILES N OF HIGHSPIRE, Dauphin, PA

Built 1969 ADT: 25,249

PA 443; SR 0443

Unknown

Over: SR 0022; RAMP P;US22-322

1 MI E DAUPHIN, Dauphin, PA

Built 1977 ADT: 20,777

SR 2003

Unknown

Over: T496,SWATARA CR,RAILROAD

1.5 MI. N.E. MIDDLETOWN, Dauphin, PA

Built 1972 ADT: 500

SR 2005 WALTONVILL

Unknown

Over: SR 0322; US 322

.5 MI. S. HUMMELSTOWN, Dauphin, PA

Built 1968 ADT: 16,021

SR 3006

Unknown

Over: SR 0283 & SR 3001

S.OF PENN HARRIS INT., Dauphin, PA

Built 1970 ADT: 26,820

SR 3007

Unknown

Over: I-83; SR 0083

19 ST CITY OF HARRISBURG, Dauphin, PA

Built 1961 ADT: 38,859

SR 3010 WB

Unknown

Over: I-83; SR 0083

SWATARA TOWNSHIP, Dauphin, PA

Built 1961 ADT: 36,068

MULBERRY ST

Unknown

Over: SR 0230,AMTRAK, NSRC

MULBERRY STREET, Dauphin, PA

Built 1909 ADT: 15,017

SR 3012

Unknown

Over: US 322; SR 3001

DERRY ST. LAWNTON, Dauphin, PA

Built 1953 ADT: 17,064

SR 3013

Unknown

Over: I-83; SR 0083

29TH STREET OVER I-83, Dauphin, PA

Built 1961 ADT: 36,184

SR 3016;Forster St

Unknown

Over: US-11/15;Susquehanna Riv

City of Harrisburg, Dauphin, PA

Built 1951 ADT: 12,523

SR 3017

Unknown

Over: I-81; SR 0081

1.5 NORTH OF PROGRESS, Dauphin, PA

Built 1968 ADT: 34,584

SR 3021; TWP RD

Unknown

Over: I-81;RP AF,C,G;PAXTON CK

I-81 & 22-322 INTERCHANGE, Dauphin, PA

Built 1974 ADT: 4,824

TWP RD 382

Unknown

Over: SR 3032

1.0 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 ADT: 6,829

SR 3032 AIRPORT CN

Unknown

Over: I-76; SR 9076

1.5 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 ADT: 29,356

SR 3032 AIRPORT CN

Unknown

Over: TWP RD 333

1.5 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 ADT: 1

SR 3032 OBERLIN RD

Unknown

Over: PA 283; SR 0300

2 MI. N.E. HIGHSPIRE, Dauphin, PA

Built 1971 ADT: 27,820

PA TPK (I-76)

Unknown

Over: T-380

LOWER SWATARA TWP, Dauphin, PA

Built 1949 ADT: 1,000

PA TPK (I-76)

Unknown

Over: T-333

LOWER SWATARA TWP, Dauphin, PA

Built 1949 ADT: 200

PA TPK (I-76)

Unknown

Over: LR22072,SR2002

LONDONDERRY TWP, Dauphin, PA

Built 1949 ADT: 818

PA TPK (I-76)

Unknown

Over: LR22009,SR2007

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 1,299

T-602

Unknown

Over: PA TPK (I-76)

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 24,423

PA TPK (I-76)

Unknown

Over: LR22007, PA 743

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 15,627

PA TPK (I-76)

Unknown

Over: T-570

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 100

LR 22010,SR2009

Unknown

Over: PA TPK (I-76)

CONEWAGO TOWNSHIP, Dauphin, PA

Built 1950 ADT: 23,988

RAMP C-C;SR 8001

Unknown

Over: FR ST.SR 3009 SUSQ.RIVER

N.END WADE BRIDGE, Dauphin, PA

Built 1972 ADT: 8,409

SR 8001,RAMP G I81

Unknown

Over: SR 3009

SUSQUEHANNA TWP, Dauphin, PA

Built 1972 ADT: 5,098

SR 8003; RAMP B

Unknown

Over: I-81; SR 0081

INTER I81 & US22, Dauphin, PA

Built 1977 ADT: 40,563

SR 8003, RAMP C

Unknown

Over: I-81; SR 8003, RAMP B

INTER I81 & US22, Dauphin, PA

Built 1977 ADT: 40,563

Showing 551-600 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.