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

TORONITA STREET

Good

Over: TRIB TO CODORUS CREEK

1500 FT N OF U.S. 30, York, PA

Built 1975 Load: 36.9 t ADT: 3,000

T-308 SHANLEY HILL

Good

Over: CLARION RIVER

1.25 MI SOUTH OF HALLTON, Elk, PA

Built 2004 Load: 36.9 t ADT: 300

SR 3031

Good

Over: Dutch Hollow Creek

SOUTH HUNTINGDON TWP, Westmoreland, PA

Built 2004 Load: 36.9 t ADT: 2,371

HIGH STREET

Good

Over: MANATAWNY CREEK

.1 MI. E. PA-100 3138E01, Montgomery, PA

Built 2011 Load: 36.9 t ADT: 7,322

FRONT STREET

Good

Over: GULPH MILLS CREEK

.5 MI. N. I-76 3367K09, Montgomery, PA

Built 2012 Load: 36.9 t ADT: 13,513

HUNTERS HILL ROAD

Good

Over: JORDAN CREEK

NEAR GERMANSVILLE, Lehigh, PA

Built 2011 Load: 36.9 t ADT: 826

SR 3005 E. Lake Rd

Good

Over: BENNETT RUN

NORTH SHENANGO TWP, Crawford, PA

Built 2011 Load: 36.9 t ADT: 962

SR 0066

Good

Over: LEISURE RUN

2.9mi. N SR 28 Inter., Clarion, PA

Built 2011 Load: 36.9 t ADT: 3,054

MONTOUR CHURCH RD

Good

Over: SR 22

TWP RD 430 OVER SR 22, Allegheny, PA

Built 2011 Load: 36.9 t ADT: 2,236

LR 566 SP E

Good

Over: GENESEE RIVER

GENESEE, Potter, PA

Built 2011 Load: 36.9 t ADT: 570

LR 234

Good

Over: CLEARFIELD CREEK

IRVONA BORO, Clearfield, PA

Built 2011 Load: 36.9 t ADT: 2,337

PA TPK (Toll 43)

Good

Over: SR 2089 & Two Mile Run

Exit 28, Washington, PA

Built 2011 Load: 36.9 t ADT: 2,000

EBY CHIQUES RD

Good

Over: CHIQUES CREEK

1 MI SE OF SR 230, Lancaster, PA

Built 2012 Load: 36.9 t ADT: 890

SR 1023

Good

Over: SLATE LICK RUN

4.59 MILE N. FROM PA 36, Cambria, PA

Built 2012 Load: 36.9 t ADT: 120

SR 0590 TR 590

Good

Over: LAKE GENERO

SALEM TWP .3 M W SR 3006, Wayne, PA

Built 2012 Load: 36.9 t ADT: 5,980

SR 1001/BUS US 220

Good

Over: LITTLE JUNIATA RIVER

0.25 MILE SOUTH OF TIPTON, Blair, PA

Built 2012 Load: 36.9 t ADT: 4,843

T-572 BANKSON RD

Good

Over: CHERRY RUN

1.8 M NE OF ROUSEVILLE, Venango, PA

Built 2011 Load: 36.9 t ADT: 100

SR 1001 (LR 13012)

Good

Over: WILD CREEK

.25 MI. N. OF HATCHERY, Carbon, PA

Built 2012 Load: 36.9 t ADT: 368

SR 2020

Good

Over: S FORK OF OTTER CREEK

1 MI.N.W. GORAM, York, PA

Built 2012 Load: 36.9 t ADT: 289

BRIDGE 651 T-860

Good

Over: POWDERMILL RUN

FRENCH CREEK TWP, Mercer, PA

Built 2012 Load: 36.9 t ADT: 850

T-221

Good

Over: MCMICHAEL CREEK

SCIOTA, Monroe, PA

Built 2013 Load: 36.9 t ADT: 100

SR 0050

Good

Over: Br S. Fork Cross Creek

3.8 mi W from SR 0018, Washington, PA

Built 2013 Load: 36.9 t ADT: 2,257

BEAVERDAM ROAD

Good

Over: LEFT FORK BEAVERDAM RUN

LEIDY TOWNSHIP, Clinton, PA

Built 2013 Load: 36.9 t ADT: 100

Sheffield Street

Good

Over: SR 0070

Sheffield St over SR0070, Washington, PA

Built 2013 Load: 36.9 t ADT: 4,830

Bonnymeade Ave.

Good

Over: Spring Creek

SPRG CRK OFF DERRY STREET, Dauphin, PA

Built 2013 Load: 36.9 t ADT: 1,920

SR 3001

Good

Over: MEHOOPANY CREEK

FORKSTON TWP 3M S TR 87, Wyoming, PA

Built 2013 Load: 36.9 t ADT: 31

GRAVEL PIKE

Good

Over: BRANCH PERKIOMEN CREEK

.25 MI. E. BERKS 2804D02, Montgomery, PA

Built 2014 Load: 36.9 t ADT: 9,729

PA 409

Good

Over: BILLING CREEK

VILLAGE OF CAMPTOWN, Bradford, PA

Built 2014 Load: 36.9 t ADT: 1,274

SR 4017

Good

Over: HOLDEN CREEK

2 MI N OF OSCEOLA, Tioga, PA

Built 2014 Load: 36.9 t ADT: 274

T-662

Good

Over: PA TPK (I-76)

West of Allegheny Val Int, Allegheny, PA

Built 2013 Load: 36.9 t ADT: 200

PA 53

Good

Over: NORFOLK SOUTHERN RR

0.9 MI NORTH OF CRESSON, Cambria, PA

Built 2014 Load: 36.9 t ADT: 4,412

SR 4002

Good

Over: SUGAR RUN

2 MI SW OF ALTOONA, Blair, PA

Built 2014 Load: 36.9 t ADT: 1,407

T-710 Cole Road

Good

Over: Stony Fork

Wharton Township, Fayette, PA

Built 2014 Load: 36.9 t ADT: 150

MISSION ROAD

Good

Over: LOYALHANNA CREEK

1000 WEST OF SR 982, Westmoreland, PA

Built 2015 Load: 36.9 t ADT: 1,000

SR 2025

Good

Over: BLUE LICK CREEK

.5 MI W OF HAYS MILL, Somerset, PA

Built 2015 Load: 36.9 t ADT: 688

CRUIKSHANK ROAD

Good

Over: TRIB TO GLADE RUN

CRUIKSHANK ROAD, Butler, PA

Built 2015 Load: 36.9 t ADT: 468

SR 1039

Good

Over: TRIB S FRK PINE CR

BRYAN, Armstrong, PA

Built 2015 Load: 36.9 t ADT: 161

SR 2005

Good

Over: BLACK HOLE CREEK

BORO OF MONTGOMERY, Lycoming, PA

Built 2015 Load: 36.9 t ADT: 1,286

SR 4009

Good

Over: TROUPS CREEK

VILLAGE OF AUSTINBURG, Tioga, PA

Built 2015 Load: 36.9 t ADT: 413

SR 4026(LR 06031)

Good

Over: SCHUYLKILL RIVER

MOHRSVILLE, Berks, PA

Built 2015 Load: 36.9 t ADT: 2,499

PA 16; Buchanan Tr

Good

Over: Buck Run

Cove Gap, Franklin, PA

Built 2015 Load: 36.9 t ADT: 3,503

SR 249

Good

Over: TRIB TO CROOKED CREEK

VILLAGE OF SHORTSVILLE, Tioga, PA

Built 2015 Load: 36.9 t ADT: 1,624

Billings Mill Rd

Good

Over: BILLINGS MILL BROOK

TUNKHANNOCK TP JCT SR1002, Wyoming, PA

Built 2015 Load: 36.9 t ADT: 892

SR 4046

Good

Over: Downers Run & Aband. R/R

3.2 mi N from SR 0051, Fayette, PA

Built 2015 Load: 36.9 t ADT: 2,133

SOUTHMONT BLVD

Good

Over: CHENEY RUN

JOHNSTOWN, Cambria, PA

Built 2015 Load: 36.9 t ADT: 6,373

SR 0308

Good

Over: MUDDY CREEK

0.1 Mi N SR 4002 Inter., Butler, PA

Built 2016 Load: 36.9 t ADT: 3,131

GREEN CREEK ROAD

Good

Over: GREEN CREEK

1 MI S OF WALLER, Columbia, PA

Built 2016 Load: 36.9 t ADT: 127

INTERSTATE 95

Good

Over: RAMP B (COTTMAN AVENUE)

0.2 MI. S. BLEIGH 3482E7, Philadelphia, PA

Built 2016 Load: 36.9 t ADT: 159,848

INTERSTATE 95

Good

Over: LONGSHORE AVENUE

1/2 MI. S. RTE 73 3482D7, Philadelphia, PA

Built 2016 Load: 36.9 t ADT: 251,200

INTERSTATE 95

Good

Over: MAGEE AVENUE

1/4 MI. N. TACONY 3482C7, Philadelphia, PA

Built 2016 Load: 36.9 t ADT: 251,200

Showing 14,801-14,850 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.