State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

T-353 MOSER ROAD

Good

Over: CASSELMAN RIVER

2 MI.NE.OF SALISBURY, Somerset, PA

Built 1900 Load: 30.8 t ADT: 50

I-80 EB

Good

Over: OVER US 15 NB/SB

10 MI N OF LEWISBURG, Union, PA

Built 1962 Load: 30.8 t ADT: 13,743

SR 1008

Good

Over: TRIB.W.BR.SUSQ.RIVER

1.5 MI W OF NEW COLUMBIA, Union, PA

Built 1974 Load: 30.8 t ADT: 1,594

SR 3003

Good

Over: OVER COLD RUN

BORO OF HARTLETON, Union, PA

Built 1977 Load: 30.8 t ADT: 448

SR 3009 ELM STREET

Good

Over: OVER TIDIOUTE CREEK

DEERFIELD TOWNSHIP, Warren, PA

Built 1992 Load: 30.8 t ADT: 353

SR 6006 PENN AVE.E

Good

Over: OVER CONEWANGO CREEK

CITY OF WARREN, Warren, PA

Built 1987 Load: 30.8 t ADT: 10,204

SR 0652 TR 652

Good

Over: BR INDIAN ORCHARD BR

BERLIN TWP 500 E SR 2011, Wayne, PA

Built 1964 Load: 30.8 t ADT: 5,065

T-622 BRANCH RD

Good

Over: LAUREL RUN

1.1 MILES SOUTH OF SR 410, Jefferson, PA

Built 1999 Load: 30.8 t ADT: 30

MAIN STREET

Good

Over: RACCOON CREEK

300 N OF SR18 INTERSECT, Washington, PA

Built 2001 Load: 30.8 t ADT: 800

SR 80-I 80 WB

Good

Over: SR 1006

2 MI WEST EXIT 161, Centre, PA

Built 2005 Load: 30.8 t ADT: 11,358

T-426 WENDELL RD

Good

Over: GAZZAM RUN

600 FT SE OF SR 729, Clearfield, PA

Built 2005 Load: 30.8 t ADT: 19

LITTLE MEADOWS #1

Good

Over: APALACHIN CREEK

LITTLE MEADOWS BOROUGH, Susquehanna, PA

Built 2008 Load: 30.8 t ADT: 50

Mount Zion Road

Good

Over: Little Swatara Creek

2 MI S. Of Hamlin, Lebanon, PA

Built 2010 Load: 30.8 t ADT: 1,918

LEVY LANE

Good

Over: POQUESSING CREEK

0.3MI W OF PINE RD, Montgomery, PA

Built 1980 Load: 30.8 t ADT: 500

EAST PEALE AVENUE

Good

Over: FISHING CREEK

200FT E. RT. 64:MILL HALL, Clinton, PA

Built 1974 Load: 31.1 t ADT: 350

T-426 GRANT RD

Good

Over: BENNETT BR SINNEMAHONING

500 FT SOUTH OF SR 555, Elk, PA

Built 1889 Load: 31.1 t ADT: 10

PA TPK (I-476)

Good

Over: SR 0209 LR164

Mahoning Valley insection, Carbon, PA

Built 2014 Load: 31.4 t ADT: 22,198

PA TPK 0576

Good

Over: S.R. 0022

Robinson Township, Washington, PA

Built 2013 Load: 31.4 t ADT: 10,538

PA TPK 0576

Good

Over: SR 0022

Robinson Township, Washington, PA

Built 2013 Load: 31.4 t ADT: 10,538

WOODS ROAD

Good

Over: PINE RUN

1 NE ABBOTTSTOWN/PINE RUN, Adams, PA

Built 1986 Load: 31.8 t ADT: 150

RT 0028 NB

Good

Over: BAILEYS RUN RD. CREEK

RT 28 NB O/BAILEYS RUN RD, Allegheny, PA

Built 1976 Load: 31.8 t ADT: 21,736

CRESCENT STREET

Good

Over: PINE CREEK

150 S.E. OF SR 4017, Allegheny, PA

Built 1979 Load: 31.8 t ADT: 6,515

UNIVERSAL RD

Good

Over: THOMPSON RUN EAST BR.

TE12 THOMPSON E BR # 12, Allegheny, PA

Built 1990 Load: 31.8 t ADT: 9,286

MERCER RD

Good

Over: CONNOQUENESSING CREEK

N.B. @ INTER. W/SR 0288, Beaver, PA

Built 1976 Load: 31.8 t ADT: 4,689

PINE GROVE RD

Good

Over: SIX MILE RUN

6000N.OF INTER.W/TR68, Beaver, PA

Built 1961 Load: 31.8 t ADT: 188

PINE GROVE RD

Good

Over: SIX MILE RUN

7700N.OF INTER W/TR68, Beaver, PA

Built 1961 Load: 31.8 t ADT: 188

T-667 FOXWOOD DR.

Good

Over: PA TPK (I-376)

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 31.8 t ADT: 500

I-70 EBL

Good

Over: SR 2035

OVER SR 2035 AT EXIT 149, Bedford, PA

Built 1963 Load: 31.8 t ADT: 4,916

SR 4023

Good

Over: GEORGES CREEK

LOVELY, Bedford, PA

Built 1984 Load: 31.8 t ADT: 50

SR2007/KUTZTOWN RD

Good

Over: BERNHART CREEK

KUTZTOWN RD MUHL.TWP., Berks, PA

Built 1978 Load: 31.8 t ADT: 8,072

PA 36

Good

Over: POPLAR RUN

.25 MI.S.OF CATFISH, Blair, PA

Built 1988 Load: 31.8 t ADT: 7,122

I-99 / US 220 NBL

Good

Over: 8TH AVE EXT BLAIR GAP RN

DUNCANSVILLE, Blair, PA

Built 1984 Load: 31.8 t ADT: 8,640

PA 865

Good

Over: LITTLE JUNIATA RIVER

0.2MI.E.OF BELLWOOD, Blair, PA

Built 1992 Load: 31.8 t ADT: 7,442

SR 4027/BUS US 220

Good

Over: SCHELL RUN

0.8 MILE SOUTH OF TR 453, Blair, PA

Built 1974 Load: 31.8 t ADT: 5,826

SR 220

Good

Over: CHEMUNG RIVER

US 220 CHEMUNG RIVER BRDG, Bradford, PA

Built 1973 Load: 31.8 t ADT: 9,769

SR 1044

Good

Over: PARKS CREEK

1 MI.N.OF ROME BORO, Bradford, PA

Built 1996 Load: 31.8 t ADT: 127

SR 4017

Good

Over: LEONARDS CREEK

VILLAGE OF LEONA, Bradford, PA

Built 1974 Load: 31.8 t ADT: 361

TRAUGERS CROSSING

Good

Over: GALLOWS RUN

NOCKAMIXON TWP. 2584-A4, Bucks, PA

Built 1893 Load: 31.8 t ADT: 50

US 219

Good

Over: SR 3043 (JACKSON ST)

0.8 MILE NORTH OF TR 53, Cambria, PA

Built 1968 Load: 31.8 t ADT: 12,978

PA TPK RAMP AB

Good

Over: PA TPK (I-476)

MAHONING VALLEY INTERCH., Carbon, PA

Built 1956 Load: 31.8 t ADT: 6,480

VALLEY STATION RD.

Good

Over: BRANDYWINE CREEK

.5 MI N of CTSVLE 3579-H2, Chester, PA

Built 1998 Load: 31.8 t ADT: 100

SR 0080

Good

Over: OVER S.R. 0339

MIFFLINVILLE, Columbia, PA

Built 1964 Load: 31.8 t ADT: 14,038

PA 443; SR 0443

Good

Over: FISHING CREEK

2 MI. S.E. DAUPHIN, Dauphin, PA

Built 1968 Load: 31.8 t ADT: 1,556

BEATTY ROAD

Good

Over: MID-COUNTY EXPRESSWAY

SMEDLEY PARK 34G03, Delaware, PA

Built 1990 Load: 31.8 t ADT: 3,365

SR 5 EB W 12 TH ST

Good

Over: OVER SR 79 NB/SB

CITY OF ERIE, Erie, PA

Built 1983 Load: 31.8 t ADT: 14,405

SR 89 BEAVER DAM R

Good

Over: OVER FRENCH CREEK W BR

VENANGO TOWNSHIP, Erie, PA

Built 1990 Load: 31.8 t ADT: 1,779

PA TPK (I-76)

Good

Over: SR 4006 LR264A

FANNETT TWP, Franklin, PA

Built 2000 Load: 31.8 t ADT: 21,433

T-421 GEHR RD

Good

Over: CAMPBELL RUN

300 FT SW OF SR 3013, Franklin, PA

Built 1974 Load: 31.8 t ADT: 275

SR 0221

Good

Over: CRAYNES RUN

MORGAN TOWNSHIP, Greene, PA

Built 1947 Load: 31.8 t ADT: 2,037

US 522

Good

Over: N.BR.LITTLE AUGHWICK CR.

0.9 MI.N.OF FULTON LINE, Huntingdon, PA

Built 1967 Load: 31.8 t ADT: 2,713

Showing 12,851-12,900 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

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.

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.