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-81 NB(LR 1005)

Unknown

Over: SR 1006 (LR 53037)

1 MI.S.OF EXIT 131(37), Schuylkill, PA

Built 1967 ADT: 2,312

I-81 SB (LR 1005)

Unknown

Over: PA54(LR290)& I-81 RP B,F

EXIT 131(37) S.B., Schuylkill, PA

Built 1967 ADT: 2,649

I-81 NB (LR1005)

Unknown

Over: SR 1017 (LR 53044)

EXIT 134 (38), Schuylkill, PA

Built 1966 ADT: 993

I-81 NB (LR 1005)

Unknown

Over: READING,RBMNRR,RAMPS M&U

EXIT 138 (39), Schuylkill, PA

Built 1966 ADT: 3,939

US 209 (LR 199)

Unknown

Over: I-81 (L.R. 1005)

EXIT 107(33) I-81, Schuylkill, PA

Built 1969 ADT: 10,106

PA 901 (LR 53056)

Unknown

Over: I-81 (LR 1005)

AIRPORT & PRISON EXIT 35, Schuylkill, PA

Built 1969 ADT: 10,219

SR 1016(LR 53045)

Unknown

Over: I-81 (LR1005)

2 MI.NORTH OF DELANO, Schuylkill, PA

Built 1966 ADT: 11,741

NICHOLS ST.

Unknown

Over: PROGRESS AVE.

NICHOLS ST.POTTSVILLE, Schuylkill, PA

Built 1991

SR 8017 (RAMP M)

Unknown

Over: PA 309

I-81 RAMP M OVER PA 309, Schuylkill, PA

Built 1967 ADT: 5,255

I-81 NB (LR 1005)

Unknown

Over: SR 4007 (LR 53001)

2.5MI.N.OF EXIT 116(35), Schuylkill, PA

Built 2000 ADT: 2,367

I-81 SB

Unknown

Over: SR 4007 (LR53001)

EXIT 119 (OLD EXIT 35A), Schuylkill, PA

Built 2000 ADT: 2,367

I-81 NB (LR 1005)

Unknown

Over: OAK GROVE ROAD

1 MI N OF EXIST 100 (31), Schuylkill, PA

Built 2004 ADT: 460

I-81 SB (LR 1005)

Unknown

Over: OAK GROVE ROAD

1 MI. N. OF EXIT 100 (31), Schuylkill, PA

Built 2004 ADT: 460

PA 924 (LR161)

Unknown

Over: R&N RR, Mahanoy CK, 4030

MAIZEVILLE, Schuylkill, PA

Built 2020 ADT: 3,142

PA 31

Unknown

Over: US 219

.8 MI.E.OF SOMERSET, Somerset, PA

Built 1973 ADT: 3,384

WINDBER 17TH ST.

Unknown

Over: PA 56 & SEESE RUN

WINDBER BORO., Somerset, PA

Built 1959 ADT: 5,572

SR 2047(0510&0511)

Unknown

Over: US 219 (0520 & 0521)

BERLIN-SOMERSET INTERCHNG, Somerset, PA

Built 1973 ADT: 3,384

US 219 NBL

Unknown

Over: PENNSYLVANIA TURNPIKE

OVER PA TURNPIKE, Somerset, PA

Built 1973 ADT: 25

US 219 SBL

Unknown

Over: PENNSYLVANIA TURNPIKE

OVER PA TURNPIKE, Somerset, PA

Built 1973 ADT: 25

US 219 NBL

Unknown

Over: PA 281

2 MI. NE OF SOMERSET, Somerset, PA

Built 1973 ADT: 2,968

US 219 SBL

Unknown

Over: PA 281

OVER TR 281, Somerset, PA

Built 1973 ADT: 2,968

T524 SECHLAR ROAD

Unknown

Over: US 219

1.6 MILE NORTH OF TR 281, Somerset, PA

Built 1972 ADT: 5,810

T626 CRITCHFIELD R

Unknown

Over: US 219

3.6 MILE NORTH OF TR 281, Somerset, PA

Built 1969 ADT: 6,344

US 219 SBL

Unknown

Over: T893 MILOW-KIMMER ROAD

3.0 MILE SOUTH OF TR 30, Somerset, PA

Built 2001 ADT: 25

US 219 NBL

Unknown

Over: T685 MILLER ROAD

1.8 MILE SOUTH OF TR 30, Somerset, PA

Built 1969 ADT: 25

US 219 SBL

Unknown

Over: T685 MILLER ROAD

1.8 MILE SOUTH OF TR 30, Somerset, PA

Built 1969 ADT: 25

US 219 NBL

Unknown

Over: US 30

OVER US 30, Somerset, PA

Built 1968 ADT: 2,407

US 219 SBL

Unknown

Over: US 30

OVER US 30, Somerset, PA

Built 1968 ADT: 2,407

US 219 NBL

Unknown

Over: SR 4010

OVER SR 4010, Somerset, PA

Built 1969 ADT: 113

US 219 SBL

Unknown

Over: SR 4010

OVER SR 4010, Somerset, PA

Built 1969 ADT: 113

US 219 NBL

Unknown

Over: T741 PILLTOWN ROAD

2.57 MILE NORTH OF US 30, Somerset, PA

Built 1969 ADT: 25

US 219 NBL

Unknown

Over: SR 4035

OVER SR 4035, Somerset, PA

Built 1969 ADT: 197

US 219 SBL

Unknown

Over: PA 601

OVER PA 601, Somerset, PA

Built 1969 ADT: 857

US 219 NBL

Unknown

Over: SR 4016

OVER SR 4016, Somerset, PA

Built 1969 ADT: 556

US 219 SBL

Unknown

Over: SR 4016

OVER SR 4016, Somerset, PA

Built 1969 ADT: 556

US 219 NBL

Unknown

Over: PA 403

OVER PA 403, Somerset, PA

Built 1969 ADT: 2,479

US 219 SBL

Unknown

Over: PA 403

OVER PA 403, Somerset, PA

Built 1969 ADT: 2,479

US 219 NBL

Unknown

Over: SR 4039

OVER SR4039,E DAVIDSVILLE, Somerset, PA

Built 1969 ADT: 287

US 219 SBL

Unknown

Over: SR 4039

OVER SR 4039, Somerset, PA

Built 1969 ADT: 287

SR 4004

Unknown

Over: US 219

.25 MI.N.OF GIDEON, Somerset, PA

Built 1969 ADT: 6,276

PA TPK RAMPS

Unknown

Over: PA TPK (I-76)

SOMERSET INTERCHANGE, Somerset, PA

Built 2004 ADT: 32,134

PA TPK (I-76)

Unknown

Over: SR 0281

EAST OF SOMERSET INTERCHG, Somerset, PA

Built 1939 ADT: 7,028

T-612 Cranberry Rd

Unknown

Over: PA TPK (I-76)

WEST OF BROTHERTON, Somerset, PA

Built 1994 ADT: 29,452

T-513 Horse Track

Unknown

Over: PA TPK (I-76)

NEAR BROTHERTON, Somerset, PA

Built 2002 ADT: 29,452

PA TPK (I-76)

Unknown

Over: SR 2033(LR 55046)

WEST OF ALLEGHENY TUNNEL, Somerset, PA

Built 2004 ADT: 486

PA TPK (I-76)

Unknown

Over: SR 0160 (LR 55045)

WEST OF ALLEGHENY TUNNEL, Somerset, PA

Built 1939 ADT: 1,508

PA TPK (I76) EB

Unknown

Over: SR 1015; (LR55051)

WEST OF NEW BALTIMORE, Somerset, PA

Built 1980 ADT: 166

PA TPK (I-76) WB

Unknown

Over: SR 1015

2.5 MI SW NEW BALTIMORE, Somerset, PA

Built 1980 ADT: 166

PA TPK (I-76)

Unknown

Over: T-782

NEAR NEW BALTIMORE, Somerset, PA

Built 1939 ADT: 200

T355 HUNSRICK S RD

Unknown

Over: US 219

1.5 MI.S OF MEYERSDALE, Somerset, PA

Built 1998 ADT: 5,324

Showing 1,951-2,000 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.