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

ON TSR 556

Good

Over: COCOLAMUS CREEK

1 MILE SOUTH COCOLAMUS, Juniata, PA

Built 2006 Load: 42.6 t ADT: 396

SR1014 Greble RD

Good

Over: ELIZABETH RUN

2 MI.E. JONESTOWN, Lebanon, PA

Built 2006 Load: 42.6 t ADT: 1,316

SR 3002

Good

Over: SOUTH POPLAR RUN

0.7 MI N OF SR 3005, Blair, PA

Built 2006 Load: 42.6 t ADT: 892

SR 405

Good

Over: Muddy Run

1 Mile North of Milton, Northumberland, PA

Built 2007 Load: 42.6 t ADT: 4,625

US 222

Good

Over: OVER SR 3008

UPPER MACUNGIE, Lehigh, PA

Built 2006 Load: 42.6 t ADT: 20,403

SR 4015

Good

Over: Mill Creek

1 mi S.E. of Wetona, Bradford, PA

Built 2007 Load: 42.6 t ADT: 156

SR 44

Good

Over: Spring Creek

.5 M. W. of Spring Garden, Union, PA

Built 2007 Load: 42.6 t ADT: 1,301

I-99 / US 220 NBL

Good

Over: SR 0350

1.07 MI NORTH OF EXIT 52, Blair, PA

Built 2006 Load: 42.6 t ADT: 6,883

SR.2013 scroggy rd

Good

Over: OCTARARO CREEK

2.5 miles south of octaro, Lancaster, PA

Built 2007 Load: 42.6 t ADT: 835

SR 2001 wago rd.

Good

Over: KREUTZ CREEK

WINDSOR TWP, York, PA

Built 2007 Load: 42.6 t ADT: 4,841

SR 1021

Good

Over: SUTTON CREEK

FRNKLN TWP 2.2M N SR 1044, Luzerne, PA

Built 2007 Load: 42.6 t ADT: 1,764

T-544 CTY BR # 32

Good

Over: SUGAR CREEK

2.6 Mi W.OF NORTH TOWANDA, Bradford, PA

Built 2007 Load: 42.6 t ADT: 46

Pleasantville Road

Good

Over: SR 0376 EB-WB

3017 Center exit over 376, Beaver, PA

Built 2007 Load: 42.6 t ADT: 7,802

North Creek Road

Good

Over: Little Mahoning Creek

1500 S of SR4018, Indiana, PA

Built 2009 Load: 42.6 t ADT: 25

DEKALB STREET

Good

Over: NORFOLK SOUTHERN

S.SCHUYLKILL RIVER 3367D3, Montgomery, PA

Built 2009 Load: 42.6 t ADT: 17,486

I-79 SOUTHBOUND

Good

Over: US 6 & US 322

VERNON TOWNSHIP, Crawford, PA

Built 2008 Load: 42.6 t ADT: 7,557

SR 0233 DOUBLING G

Good

Over: I-76 PA Turnpike

Lower Mifflin Township, Cumberland, PA

Built 2008 Load: 42.6 t ADT: 1,378

SR 1005

Good

Over: Plunketts Creek

Village of Proctor, Lycoming, PA

Built 2008 Load: 42.6 t ADT: 331

28-279 CONNECTOR

Good

Over: SR 279 AND MADISON AVE

NORTH SIDE, Allegheny, PA

Built 2008 Load: 42.6 t ADT: 16,204

SR 8006

Good

Over: Ramp W over Ramp X (SR11

Lime ridge Interchange, Columbia, PA

Built 2008 Load: 42.6 t ADT: 1,359

SR 15 SBL

Good

Over: WILDLIFE PASSAGE

1 MI. S. LAWRENCEVILLE BO, Tioga, PA

Built 2008 Load: 42.6 t ADT: 4,416

SR 15 NBL

Good

Over: WILDLIFE PASSAGE

1 M. S LAWRENCEVILLE BORO, Tioga, PA

Built 2008 Load: 42.6 t ADT: 4,320

SR 35

Good

Over: SUSQUEHECKA CREEK

3 MI. E. OF FREMONT, Snyder, PA

Built 2008 Load: 42.6 t ADT: 3,753

SR 1022

Good

Over: Bullards Creek

1.5 Mi W. of Rome Boro, Bradford, PA

Built 2008 Load: 42.6 t ADT: 1,370

HAVICE VALLEY ROAD

Good

Over: SWIFT RUN

2 MI NE MILLHEIM PIKE, Mifflin, PA

Built 1935 Load: 42.6 t ADT: 35

MAIN PARK ROAD

Good

Over: BROOKS RUN

SINNEMAHONING STATE PARK, Cameron, PA

Built 2008 Load: 42.6 t ADT: 165

RAMP A

Good

Over: 2nd ST FRONT & REANEY ST

COMM. BARRY BRDG 3806K07, Delaware, PA

Built 2011 Load: 42.6 t ADT: 3,790

SR 3005

Good

Over: W BR SUSQUEHANNA RIVER

BELLS LANDING, Clearfield, PA

Built 2009 Load: 42.6 t ADT: 251

SR 2002

Good

Over: BELLTOWN RUN

BELLTOWN, Mifflin, PA

Built 2009 Load: 42.6 t ADT: 458

SR 2007

Good

Over: CHAPMANS RUN

1.5 MI. SE. OF CLEARVILLE, Bedford, PA

Built 2009 Load: 42.6 t ADT: 460

SR4021 BLOSERVILLE

Good

Over: I-76 PA TPK MP (215.96)

2.5 M. S. OF BLOSERVILLE, Cumberland, PA

Built 2009 Load: 42.6 t ADT: 1,688

I-79 NORTHBOUND

Good

Over: US 6 & US 322

VERNON TOWNSHIP, Crawford, PA

Built 2009 Load: 42.6 t ADT: 7,350

SANDY LAKE ROAD

Good

Over: DEER CREEK

FRENCH CREEK TWP, Mercer, PA

Built 2009 Load: 42.6 t ADT: 1,489

SR 0018

Good

Over: South Fork Tenmile Creek

W of Waynesburg, Greene, PA

Built 2009 Load: 42.6 t ADT: 7,555

Goddard Blvd.

Good

Over: TPK Toll Ramps

27-K13 / 3366-E6, Montgomery, PA

Built 2003 Load: 42.6 t ADT: 5,000

Emmitsburg Rd

Good

Over: Middle Creek

.5 mi N of MD, Adams, PA

Built 2010 Load: 42.6 t ADT: 1,225

T-384 SHELDON ROAD

Good

Over: GLADE RUN

BTW T401 & T492, Butler, PA

Built 2010 Load: 42.6 t ADT: 250

E. Main 0230

Good

Over: Little Chickies Ck

Mt Joy Boro, Lancaster, PA

Built 2010 Load: 42.6 t ADT: 13,092

PA 96

Good

Over: WILLS CREEK

HYNDMAN BOROUGH, Bedford, PA

Built 2010 Load: 42.6 t ADT: 1,345

E-town Road

Good

Over: Chickies Creek

1.75 SW of Mastersonville, Lancaster, PA

Built 2010 Load: 42.6 t ADT: 2,021

GREENSBURG PIKE

Good

Over: LINCOLN HIGHWAY

GREENSBURG PIKE O/ RT 30, Allegheny, PA

Built 2010 Load: 42.6 t ADT: 3,356

T941 - Piper Road

Good

Over: Stony Run

BTW T968 & SR1027, Westmoreland, PA

Built 2010 Load: 42.6 t ADT: 60

SR 4007

Good

Over: KINGS CREEK

4 MI NORTH OF ESTELLA, Sullivan, PA

Built 2010 Load: 42.6 t ADT: 182

T-898 Monastery D

Good

Over: Norfolk Southern RR

500 FT FROM SR 1024, Westmoreland, PA

Built 2010 Load: 42.6 t ADT: 6,317

WASHINGTON AVENUE

Good

Over: PENTZ RUN

150 FT NW OF JARED ST, Clearfield, PA

Built 2010 Load: 42.6 t ADT: 1,175

South Street

Good

Over: I-76 Schuylkill R & CSX

East of 33rd St., Philadelphia, PA

Built 2010 Load: 42.6 t ADT: 20,000

T-402

Good

Over: PA TPK (I-76)

Upper Mifflin Twp, Cumberland, PA

Built 2008 Load: 42.6 t ADT: 880

T-339 LANGMAID LN

Good

Over: MARILLA CREEK

1200 FT SOUTH OF SR 346, McKean, PA

Built 2016 Load: 42.6 t ADT: 400

SIEGRIST ROAD

Good

Over: TRIBUTARY TO MILL CREEK

1600 EAST OF PA 896, Lancaster, PA

Built 1901 Load: 42.6 t ADT: 200

SR 4022 (LR 06019)

Good

Over: PLUM CREEK

CENTERPORT IRISH CREEK RD, Berks, PA

Built 1953 Load: 42.8 t ADT: 947

Showing 17,251-17,300 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.