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-180 EASTBOUND

Unknown

Over: OVER S.R. 1007

2 MILES NORTH OF MILTON, Northumberland, PA

Built 1971 ADT: 3,160

I-180 WBL

Unknown

Over: OVER SR 1007

2 MILES NORTH OF MILTON, Northumberland, PA

Built 1971 ADT: 3,160

S.R. 642

Unknown

Over: OVER S.R. 147

1 MI E OF MILTON, Northumberland, PA

Built 1970 ADT: 8,487

SR 1025

Unknown

Over: OVER SR 147

1 MI S OF MILTON, Northumberland, PA

Built 1971 ADT: 7,851

SR 0405

Unknown

Over: NORFOLK SOUTHER RR,T-630

VILLAGE OF DEWART, Northumberland, PA

Built 1997 ADT: 100

I-80 WESTBOUND

Unknown

Over: I-180 AND RAMPS

2 MI. N OF MILTON, Northumberland, PA

Built 2001 ADT: 8,622

I-80 EASTBOUND

Unknown

Over: I-180 & SR 147 MID-POINT

2 MI N OF MILTON, Northumberland, PA

Built 2002 ADT: 9,520

SR 147 FUTURE NB

Unknown

Over: OVER SR 254

BORO OF MILTON, Northumberland, PA

Built 2002 ADT: 5,565

SR 147

Unknown

Over: SR 45

0.5 MI E OF MONTANDON, Northumberland, PA

Built 2003 ADT: 3,722

Service Rd "A"

Unknown

Over: CSVT SR 15

.5 MI N OF NORTHUMBERLAND, Northumberland, PA

Built 2018 ADT: 300

SR 1006

Unknown

Over: OVER I-180 EBL & WBL

2 MI. N.E.OF WATSONTOWN, Northumberland, PA

Built 2021 ADT: 7,799

SR 15

Unknown

Over: Susquehanna River

Susq River XING CSVT, Northumberland, PA

Built 2019 ADT: 13,918

SR 147

Unknown

Over: SR 1024

CSVT over Ridge RD SR 102, Northumberland, PA

Built 2022 ADT: 3,512

SR 147

Unknown

Over: SR 1024

CSVT over Ridge RD SR 102, Northumberland, PA

Built 2022 ADT: 3,512

US 11&15; SR 0011

Unknown

Over: PA 274;SR 0274

DUNCANNON BORO, Perry, PA

Built 1959 ADT: 6,533

US 22EB; SR 0022

Unknown

Over: PA 17; SR 0017

MILLERSTOWN BORO, Perry, PA

Built 1966 ADT: 1,481

US22/322; SR0022WB

Unknown

Over: PA 17; SR 0017

MILLERSTOWN BORO, Perry, PA

Built 1966 ADT: 1,481

US 22-322;SR0022EB

Unknown

Over: PERRY VALLEY RD.

0.8MI SE OF MILLERSTOWN, Perry, PA

Built 1966 ADT: 292

US 22; SR 0022 WB

Unknown

Over: S.R. 1010

0.8MI SE OF MILLERSTOWN, Perry, PA

Built 1966 ADT: 292

US 22-322;SR0022EB

Unknown

Over: SR 1012

1.5MI SE OF MILLERSTOWN, Perry, PA

Built 1966 ADT: 368

US 22/322 WB

Unknown

Over: SR 1012;Old Ferry Rd.

1.5MI SE OF MILLERSTOWN, Perry, PA

Built 1966 ADT: 368

US22-322;SR0022 EB

Unknown

Over: OWL HOLLOW RD.

2.4MI SE OF MILLERSTOWN, Perry, PA

Built 1966 ADT: 256

US 22/322;SR 22 WB

Unknown

Over: SR 1020

4.4 MI.NW OF AMITY HALL, Perry, PA

Built 1966 ADT: 620

US 22/322; SR 0022

Unknown

Over: SR1028 Huggins Rd

3 MI.N. OF AMITY HALL, Perry, PA

Built 1964 ADT: 242

US-22;SR 0022 EB

Unknown

Over: SR 0034

2 MI.NE OF NEWPORT BORO, Perry, PA

Built 2022 ADT: 8,205

CITY LINE AVE.S.B.

Unknown

Over: RAMPS B AND C

INT.WEST OF I-76 3479G09, Philadelphia, PA

Built 1953 ADT: 2,390

ROOSEVELT BLVD NB

Unknown

Over: SCHUYLKILL, ROADS & RR

1MI.S.CITY LINE 3479K09, Philadelphia, PA

Built 1960 ADT: 13,656

ROOSEVELT BLVD.SB

Unknown

Over: SCHUYLKILL RIVER & ROADS

1MI.S.CITY LINE 3479K09, Philadelphia, PA

Built 1960 ADT: 17,665

ROOSEVELT BLVD EXT

Unknown

Over: ROBERTS AVE;SEPTA;CSX

WAYNE JNC VIA 3480D08, Philadelphia, PA

Built 1960 ADT: 16,981

CHESTNUT STREET

Unknown

Over: AMTRAK;SCH EXPWY&30TH ST

AT 30TH STREET 3590 A08, Philadelphia, PA

Built 1934 ADT: 8,500

GIRARD AVENUE

Unknown

Over: SCHUYLKILL EXPWY, MLK DR

FAIRMOUNT PARK 3589J04, Philadelphia, PA

Built 1957 ADT: 9,800

GIRARD AVENUE

Unknown

Over: SCHUYL. RIVER & KELLY DR

FAIRMOUNT PARK 3589K04, Philadelphia, PA

Built 1972 ADT: 17,665

33RD STREET

Unknown

Over: MASTER STREET

.25MI.N.GIRARD AV.3589K04, Philadelphia, PA

Built 1901 ADT: 1,000

RIDGE AVENUE

Unknown

Over: HUNTING PARK AVE

NR.MT.VERNON CEM. 3589K01, Philadelphia, PA

Built 1948 ADT: 5,711

MILLBROOK ROAD

Unknown

Over: WOODHAVEN ROAD

LIBERTY BELL TRACK3373F07, Philadelphia, PA

Built 1964 ADT: 23,214

WOODHAVEN ROAD

Unknown

Over: ACADEMY ROAD

EAST OF ROUTE 1 3373D06, Philadelphia, PA

Built 1965 ADT: 6,578

WOODHAVEN ROAD

Unknown

Over: THORNTON ROAD

EAST OF ROUTE 1 3373C05, Philadelphia, PA

Built 1965 ADT: 7,500

WOODHAVEN ROAD

Unknown

Over: ROOSEVELT BLVD

WOODHAVEN RD;US 1 3373A03, Philadelphia, PA

Built 1965 ADT: 15,593

COTTMAN AVENUE

Unknown

Over: ROOSEVELT BLVD.

@ ROOSEVELT BLVD. 3482B03, Philadelphia, PA

Built 1967 ADT: 28,598

SCHUYLKILL EXWY.EB

Unknown

Over: NEILL DRIVE

NR.CITY LINE AVE. 3479J09, Philadelphia, PA

Built 1956 ADT: 1,500

SCHUYLKILL EXWY.EB

Unknown

Over: L.R.67058,RAMP B

NEAR NEIL DRIVE 3479J10, Philadelphia, PA

Built 1972 ADT: 19,899

SCHUYLKILL EXWY.WB

Unknown

Over: LR 67058 RAMP B

CTY.LINE AVE.INTG.3479J10, Philadelphia, PA

Built 1972 ADT: 19,899

GREENLAND DRIVE

Unknown

Over: SCHUYLKILL EXWY

W.STRWBRY.MNSN.BRG3589J01, Philadelphia, PA

Built 1972 ADT: 63,820

SCHUYLKILL EXPWAY.

Unknown

Over: MONTGOMERY DRIVE

MONTG.DRIVE INTER.3589G03, Philadelphia, PA

Built 1953 ADT: 3,500

SCHUYLKILL EXPWAY.

Unknown

Over: BLACK ROAD

NR.COLUMBIA BRDG. 3589G03, Philadelphia, PA

Built 1956 ADT: 870

SCHUYLKILL EXPWAY.

Unknown

Over: SWEETBRIAR ROAD

NR.GIRARD AVE.INCH3589J04, Philadelphia, PA

Built 1956 ADT: 2,500

SCHUYLKILL & RMP.B

Unknown

Over: RAMP C;FROM VINE STREET

VINE ST.INTERCH. 3590 A06, Philadelphia, PA

Built 1988 ADT: 18,336

SCHUYLKILL EXWY.WB

Unknown

Over: RAMP C;FROM VINE STREET

VINE ST.INTERCH. 3590A06, Philadelphia, PA

Built 1988 ADT: 18,336

SCHUYLKILL EXWY.WB

Unknown

Over: RAMP A AND RAMP B

I-76 AT VINE ST. 3590A07, Philadelphia, PA

Built 1989 ADT: 68,665

SCHUYLKILL EXPWAY.

Unknown

Over: SCHUYLKILL RIVER;CSX RR

UNIVERSISTY AVE 3589K10, Philadelphia, PA

Built 1956 ADT: 8,226

Showing 1,651-1,700 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.