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-715 LITITZ ROAD

Good

Over: Little Conestoga Creek

0.5 MI EAST OF SR 72, Lancaster, PA

Built 2019 Load: 39.2 t ADT: 1,035

RAMP B S.B. OFF

Good

Over: ARAMINGO AVE (NB) SPUR A

GIRARD AVE.INTERC.3591A05, Philadelphia, PA

Built 2020 Load: 39.2 t ADT: 10,978

SR 0422

Good

Over: SR 8016

At SR 553 Intersection, Indiana, PA

Built 2022 Load: 39.2 t ADT: 3,908

PA TPK (I-476)

Good

Over: PERKIOMEN CREEK

PERKIOMEN CREEK BRIDGE, Montgomery, PA

Built 2020 Load: 39.2 t ADT: 50,307

SR 78(LR 285 SP)

Good

Over: Branch Maiden Creek

.75 MI.E.OF LENHARTSVILLE, Berks, PA

Built 2021 Load: 39.2 t ADT: 26,887

SR 120-PA 120

Good

Over: GROVE RUN

SINNEMAHONING, Cameron, PA

Built 2021 Load: 39.2 t ADT: 722

SR 146-PA 146

Good

Over: RED MILL BROOK

3 MI E CLERMONT, McKean, PA

Built 2021 Load: 39.2 t ADT: 137

RAMP R-1 over Ramp

Good

Over: RAMP R-1 over Ramp S

CSVT RAMP R-1 over Ramp S, Union, PA

Built 2022 Load: 39.2 t ADT: 300

S 28th Street

Good

Over: CSX Railroad Tunnel

0.1 MI NW of Hot Metal Br, Allegheny, PA

Built 2002 Load: 39.2 t ADT: 1,500

SR 3029

Good

Over: E BRANCH WYALUSING CREEK

JESSUP TWP 810 N TR 706, Susquehanna, PA

Built 2022 Load: 39.2 t ADT: 321

FOMBELL RD

Good

Over: CAMP RUN

INTER W/ TWP RD 660, Beaver, PA

Built 1961 Load: 39.5 t ADT: 769

SR 729-PA 729

Good

Over: CLEARFIELD CREEK

GLEN HOPE BORO, Clearfield, PA

Built 1950 Load: 39.5 t ADT: 494

SR 0201

Good

Over: SR 0051

PERRY TOWNSHIP, Fayette, PA

Built 1949 Load: 39.5 t ADT: 3,558

PA 72;LEBANON RD.

Good

Over: CHIQUES CREEK

0.25 MI.S. OF ELSTONVILLE, Lancaster, PA

Built 1974 Load: 39.5 t ADT: 11,989

GRATERFORD ROAD

Good

Over: PERKIOMEN CREEK

GRATERFORD 3141H05, Montgomery, PA

Built 1957 Load: 39.5 t ADT: 2,157

SR 0029 TR 29

Good

Over: RHINEY CREEK

LIBERTY TWP .1M S SR 1020, Susquehanna, PA

Built 1936 Load: 39.5 t ADT: 1,810

T-431 WARD TWP

Good

Over: TIOGA RIVER

4.1 MI N OF GLEASON, Tioga, PA

Built 1894 Load: 39.5 t ADT: 55

PA TPK (I-76)

Good

Over: SR 0114 Lewisbury Road

FAIRVIEW TWP, York, PA

Built 2017 Load: 39.5 t ADT: 29,356

T-316 COUNTY LINE

Good

Over: OVER MCCAULEY RUN

TIONESTA TOWNSHIP, Forest, PA

Built 2003 Load: 39.5 t ADT: 50

US 222 SB

Good

Over: OVER SR 8032/7476/2015

LOWER MACUNGIE, Lehigh, PA

Built 2007 Load: 39.5 t ADT: 20,403

SR 0040

Good

Over: Turnpike 43

E of Brownsville, Fayette, PA

Built 2008 Load: 39.5 t ADT: 6,070

SR 0188

Good

Over: Ruff Creek

E of Waynesburg, Greene, PA

Built 2009 Load: 39.5 t ADT: 4,152

SR 504

Good

Over: BLACK MOSHANNON CREEK

BLACK MOSHANNON PARK, Centre, PA

Built 2010 Load: 39.5 t ADT: 558

T-452 BOY SCOUT RD

Good

Over: LITTLE AUGWICK CREEK

2 MI N of Fort Littleton, Fulton, PA

Built 2010 Load: 39.5 t ADT: 26

T-503

Good

Over: DELAWARE RUN

NORTHEAST OF DEWART, Northumberland, PA

Built 2009 Load: 39.5 t ADT: 100

PA 737

Good

Over: MILL CREEK

1MI N. OF KUTZTOWN, Berks, PA

Built 2011 Load: 39.5 t ADT: 5,642

SR 0403

Good

Over: DIXON RUN

.2 mi. N SR 286 Intersec., Indiana, PA

Built 2011 Load: 39.5 t ADT: 3,021

SR 737 (LR 06134)

Good

Over: TRIB. MILL CREEK

NEAR PA737 & SR 1015, Berks, PA

Built 2011 Load: 39.5 t ADT: 5,642

LR 1009 WB

Good

Over: SR 2037

ONE-HALF MILE E EXIT 133, Clearfield, PA

Built 2011 Load: 39.5 t ADT: 7,860

SR 3004

Good

Over: LAUREL RUN

1 MI EAST OF GLEN IRON, Union, PA

Built 2011 Load: 39.5 t ADT: 396

SR3061 TRNBK T509

Good

Over: TULPEHOCKEN CREEK

SHERIDAN ROAD, Berks, PA

Built 2012 Load: 39.5 t ADT: 733

SR1013 (LR 53036)

Good

Over: LOCUST CREEK

2.4MI N. OF RTE.209, Schuylkill, PA

Built 2012 Load: 39.5 t ADT: 1,232

SUSQUEHANNA ROAD

Good

Over: SANDY RUN

1.5 MI. S. I-276 3258G10, Montgomery, PA

Built 2012 Load: 39.5 t ADT: 11,360

PETERSBURG RD.

Good

Over: NORTH FORK LITTLE BEAVER

200N.W.OF SR 0551, Lawrence, PA

Built 2012 Load: 39.5 t ADT: 810

PA625 (LR 518)

Good

Over: ANGELICA CREEK

2 MI.SO.OF KENHORST, Berks, PA

Built 2012 Load: 39.5 t ADT: 3,378

MAIN STREET

Good

Over: VALLEY CREEK

2000 W SR 41 3577E10, Chester, PA

Built 2012 Load: 39.5 t ADT: 1,501

LR06044&LR06196

Good

Over: SR 78(LR 285SP)STREAM

DONAT RD.OVER I-78, Berks, PA

Built 2013 Load: 39.5 t ADT: 551

PA 309(LR 226)

Good

Over: KERSHNERS CREEK

LEIBEYVILLE WEST PENN PK., Schuylkill, PA

Built 2013 Load: 39.5 t ADT: 7,473

SR 58 MERCER ROAD

Good

Over: MOURY RUN

HEMPFIELD TWP, Mercer, PA

Built 2013 Load: 39.5 t ADT: 5,150

SR 0208

Good

Over: DEER CREEK

0.6 MI SW SR 322 INTER., Clarion, PA

Built 2013 Load: 39.5 t ADT: 3,156

SCRUBGRASS ROAD

Good

Over: SCRUBGRASS RUN

0.6 MI SE OF SR3052, Allegheny, PA

Built 2013 Load: 39.5 t ADT: 6,617

US 522

Good

Over: BEAVER CREEK

3 MI W OF BEAVER SPRINGS, Snyder, PA

Built 2013 Load: 39.5 t ADT: 3,924

SR 2011

Good

Over: ELK CREEK

COBURN, Centre, PA

Built 2013 Load: 39.5 t ADT: 934

SR 2063

Good

Over: BR NINE PARTNERS CREEK

N MLFRD TWP. 7 M S TR 848, Susquehanna, PA

Built 2013 Load: 39.5 t ADT: 256

T-397 Big Run Road

Good

Over: Trib to Shaffer Creek

5 MI SW of BREEZEWOOD, Bedford, PA

Built 2013 Load: 39.5 t ADT: 50

10TH ST

Good

Over: NORFOLK SOUTHERN/SCULL

.3 MI N FROM US422, Lebanon, PA

Built 2013 Load: 39.5 t ADT: 7,357

Caldwell Ave T392

Good

Over: CHARTIERS CREEK

150 EAST OF SR 4022, Washington, PA

Built 2014 Load: 39.5 t ADT: 300

SR 1002

Good

Over: MILL CREEK

POTTSVILLE STREET, Schuylkill, PA

Built 2014 Load: 39.5 t ADT: 4,311

T-408 FOX TWP

Good

Over: HOAGLAND BRANCH

3.1 MI N OF HILLSGROVE, Sullivan, PA

Built 2014 Load: 39.5 t ADT: 33

PA 191 (LR 48035)

Good

Over: WALTZ CREEK

WASHINGTON BLVD. ACKERMAN, Northampton, PA

Built 2015 Load: 39.5 t ADT: 5,271

Showing 16,051-16,100 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.