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-618

Good

Over: Bates Fork

2.2 Mi N of SR18, Greene, PA

Built 2014 Load: 36.0 t ADT: 100

THORNE HILL ROAD

Good

Over: SHICKSHINNY CREEK

AT SR 4007 INTERSECTION, Luzerne, PA

Built 2014 Load: 36.0 t ADT: 100

PA 669

Good

Over: TUB MILL RUN

WEST SALISBURY, Somerset, PA

Built 2014 Load: 36.0 t ADT: 1,576

Christian Springs

Good

Over: Monocacy Creek

South of SR 22, Northampton, PA

Built 2014 Load: 36.0 t ADT: 500

SR 3063(LR 06022)

Good

Over: TULPEHOCKEN CREEK

RICHLAND RD STOUCHBURG, Berks, PA

Built 2015 Load: 36.0 t ADT: 430

PA 412 (LR530)

Good

Over: SAUCON CREEK

HELLERTOWN, Northampton, PA

Built 2015 Load: 36.0 t ADT: 32,736

SR 3033

Good

Over: LOST CREEK

2.2 MI S OF TRENT, Somerset, PA

Built 2015 Load: 36.0 t ADT: 248

SR 6 - US6

Good

Over: LILLIBRIDGE CREEK

PORT ALLEGANY, McKean, PA

Built 2015 Load: 36.0 t ADT: 7,050

T-404

Good

Over: LITTLE BUFFALO CREEK

4 MI W OF NEW COLUMBIA, Union, PA

Built 2015 Load: 36.0 t ADT: 65

Stony Fork Crk Rd

Good

Over: Stony Fork Creek

Village of Draper, Tioga, PA

Built 2016 Load: 36.0 t ADT: 152

Ramp AB

Good

Over: PA TPK (I-476)

Upper Macungie, Lehigh, PA

Built 2016 Load: 36.0 t ADT: 500

MANOR RD (SR 2029)

Good

Over: CABIN CREEK

5 MILE NE OF RED LION, York, PA

Built 2016 Load: 36.0 t ADT: 914

SR 3040

Good

Over: DICKS RUN

UNIONVILLE, Centre, PA

Built 2016 Load: 36.0 t ADT: 2,381

SR 4020

Good

Over: OVER HALLOWING RUN

1.5 MI W OF AUGUSTAVILLE, Northumberland, PA

Built 2016 Load: 36.0 t ADT: 558

SR 219- US 219

Good

Over: LAUREL RUN

1 MI NE MAHAFFEY, Clearfield, PA

Built 2016 Load: 36.0 t ADT: 1,927

SR 0217

Good

Over: NS R/R Access Rd

4.0 mi N from SR 0030, Westmoreland, PA

Built 2016 Load: 36.0 t ADT: 5,919

SR 3041

Good

Over: LAUREL RUN

3 MI N OF JOHNSTOWN, Cambria, PA

Built 2016 Load: 36.0 t ADT: 2,172

SACKETT DR

Good

Over: CATS CREEK

NICHOLSON & GERMAN TWPS., Fayette, PA

Built 2017 Load: 36.0 t ADT: 406

Buck Valley Rd

Good

Over: SIDELING HILL CREEK

0.2 MI EAST OF PA 26, Fulton, PA

Built 2017 Load: 36.0 t ADT: 170

SR 0954 SH

Good

Over: SOUTH BRANCH PLUM CREEK

WILLET, Indiana, PA

Built 2018 Load: 36.0 t ADT: 535

WEST NEWTON ST

Good

Over: BR LITTLE SWICKLEY CREEK

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 2018 Load: 36.0 t ADT: 4,597

KANE RD (SR 3009)

Good

Over: TRAMPMILL RUN CREEK

0.5 MI.SOUTH OF SR 3007, Beaver, PA

Built 2017 Load: 36.0 t ADT: 1,808

T-950

Good

Over: Aultman Run

430 SE of SR 0286, Indiana, PA

Built 2017 Load: 36.0 t ADT: 405

T376 Rose Lane

Good

Over: Cove Creek

1 MI. NW of Rainsburg, Bedford, PA

Built 2017 Load: 36.0 t ADT: 50

PA 994

Good

Over: AUGHWICK CREEK

3 MI SW OF ORBISONIA, Huntingdon, PA

Built 2017 Load: 36.0 t ADT: 1,847

SR 2009

Good

Over: TRIB TO CONEWAGO CREEK

1.5 MI N OF EDGEGROVE, Adams, PA

Built 2017 Load: 36.0 t ADT: 3,909

T-515 WAY ROAD

Good

Over: DAMON RUN

COLUMBUS TWP, Warren, PA

Built 2017 Load: 36.0 t ADT: 110

SR 4001

Good

Over: OPOSSUM CREEK

CENTRE MILLS, Adams, PA

Built 2018 Load: 36.0 t ADT: 1,703

PA 416; SR 0416

Good

Over: W Br Conococheague Creek

1MI.N. OF MERCERSBURG, Franklin, PA

Built 2018 Load: 36.0 t ADT: 2,156

I-80 WB

Good

Over: OVER SR 1010

3 MI W OF WHITE DEER, Union, PA

Built 2018 Load: 36.0 t ADT: 10,065

SR 0056

Good

Over: Little Brush Creek

0.7 mi E SR 259 Intersect, Indiana, PA

Built 2018 Load: 36.0 t ADT: 4,620

SR 2011

Good

Over: Lardintown Run

2 mi S SR 228 Intersect., Butler, PA

Built 2018 Load: 36.0 t ADT: 241

SR 1019(LR 557)

Good

Over: LITTLE CEDAR CREEK

CEDAR CREST @ SR 2008, Lehigh, PA

Built 2018 Load: 36.0 t ADT: 16,333

VALLEY ROAD

Good

Over: MIDDLE BR WHITE CLAY CR.

PUSEY ABBATOIR 45G09, Chester, PA

Built 2018 Load: 36.0 t ADT: 620

SR 1017

Good

Over: EAST BRANCH BRIAR CREEK

3 MI W OF BERWICK BORO, Columbia, PA

Built 2019 Load: 36.0 t ADT: 841

SR 2007

Good

Over: Rocky Run

2.4 mi S SR 228 Intersect, Butler, PA

Built 2021 Load: 36.0 t ADT: 1,600

T-558 RAG HILL RD

Good

Over: W BR GENESEE RIVER

500 FT EAST OF PA 244, Potter, PA

Built 2010 Load: 36.0 t ADT: 100

SR 549

Good

Over: SEELEY CREEK

0.5 MI.N.OF MOSHERVILLE, Bradford, PA

Built 2019 Load: 36.0 t ADT: 2,290

KOPPEL BRIDGE

Good

Over: CSX NSRC & BEAVER RIV

KOPPEL BRIDGE, Beaver, PA

Built 2019 Load: 36.0 t ADT: 6,236

SR 36-PA 36

Good

Over: WILSON RUN

NEWBURG BORO, Clearfield, PA

Built 2019 Load: 36.0 t ADT: 1,464

SR 4035

Good

Over: North Br Plum Creek

350ft S SR 85 Intersect, Indiana, PA

Built 2020 Load: 36.0 t ADT: 263

PA TPK (I-476)

Good

Over: SR 309

MP 58.88 on I-476, Lehigh, PA

Built 1955 Load: 36.0 t ADT: 30,563

SR 144-PA 144

Good

Over: SOUTH FORK BEECH CREEK

2 MI E SNOW SHOE, Centre, PA

Built 2019 Load: 36.0 t ADT: 996

OLD EASTON ROAD

Good

Over: PINE RUN

1 MI N OF SR 313 2922-J6, Bucks, PA

Built 2020 Load: 36.0 t ADT: 500

SR 2007

Good

Over: TRIB TO PENNS CREEK

PENN HALL, Centre, PA

Built 2020 Load: 36.0 t ADT: 376

SR 3010

Good

Over: MILLERS RUN

.2 MI.NW.OF BERLIN, Somerset, PA

Built 2020 Load: 36.0 t ADT: 986

SR 477-PA 477

Good

Over: LONG RUN

ROTE, Clinton, PA

Built 2020 Load: 36.0 t ADT: 2,519

Orrs Bridge Road

Good

Over: Conodoguinet Creek

1.7 W CMP HILL HAMPDEN, Cumberland, PA

Built 2020 Load: 36.0 t ADT: 9,413

T-361 CTY BR 15

Good

Over: West Br Chillisquaque Ck

1.6 MI. NNE OF EXCHANGE, Montour, PA

Built 2020 Load: 36.0 t ADT: 21

SR 1032 (LR 166)

Good

Over: Jacoby CR and Mill Race

PORTLAND BORO. STATE ST., Northampton, PA

Built 2021 Load: 36.0 t ADT: 626

Showing 14,401-14,450 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.