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

SR 2019

Good

Over: GERMAN RUN

5 MI EAST OF CLARKSTOWN, Lycoming, PA

Built 2009 Load: 44.5 t ADT: 261

Spring Road

Good

Over: Conodoguinet Cr.

5 mi. N of Carlisle, Cumberland, PA

Built 2009 Load: 44.5 t ADT: 6,350

Central Ave

Good

Over: Kelsey Creek

Wellsboro Central Ave, Tioga, PA

Built 2009 Load: 44.5 t ADT: 600

SR 15 SB

Good

Over: SR 4011 GREEN MTN ROAD

4 MI NORTH OF TROUT RUN, Lycoming, PA

Built 2009 Load: 44.5 t ADT: 5,582

S. LINDEN ST.

Good

Over: N-S RR

FO02 Duquesne Flyover, Allegheny, PA

Built 2009 Load: 44.5 t ADT: 434

SR 0088

Good

Over: Monongahela River (89.8)

Point Marion, Greene, PA

Built 2009 Load: 44.5 t ADT: 3,746

I 80 EB

Good

Over: FISHING CR & T-360

2 MI EAST OF BUCKHORN, Columbia, PA

Built 2009 Load: 44.5 t ADT: 14,898

East Berlin Rd

Good

Over: Beaver Creek

East Berlin Boro, Adams, PA

Built 2010 Load: 44.5 t ADT: 8,108

US15

Good

Over: Lower Allen Dr/T618

Capital City Mall, Cumberland, PA

Built 2010 Load: 44.5 t ADT: 89,416

DORRINGTON RD

Good

Over: ROBINSON RUN

.25 MI S. OF SR3048, Allegheny, PA

Built 2010 Load: 44.5 t ADT: 837

PA 36

Good

Over: FRANKSTOWN BR JUNIATA R

1.2 MILE SOUTH OF CATFISH, Blair, PA

Built 2010 Load: 44.5 t ADT: 7,353

PA TPK (TOLL 43)

Good

Over: SR 4039 (Northgate Hwy)

West of Uniontown, Fayette, PA

Built 2010 Load: 44.5 t ADT: 1,000

PA TPK (TOLL 43)

Good

Over: SR 4039 (Northgate Hwy)

West of Uniontown, Fayette, PA

Built 2010 Load: 44.5 t ADT: 1,000

PA TPK (Toll 43)

Good

Over: Davidson Siding Rd T-605

West of Exit M22, Fayette, PA

Built 2009 Load: 44.5 t ADT: 1,000

STOCKPORT TURNPIKE

Good

Over: LAKE COMO OUTLET

75 FT SOUTH OF SR 4033, Wayne, PA

Built 2012 Load: 44.5 t ADT: 75

T-430 OLD PARK RD

Good

Over: HUNGRY RUN

500 FT N OF SR 2002, Mifflin, PA

Built 2011 Load: 44.5 t ADT: 173

T-433 RIDENS RD

Good

Over: HUNGRY RUN

500 FT N OF SR 2002, Mifflin, PA

Built 2011 Load: 44.5 t ADT: 150

SR 1005 - Turnback

Good

Over: T-867 Bungy Road

3 MI SOUTH OF ROSEVILLE, Tioga, PA

Built 2019 Load: 44.5 t ADT: 317

Mountain Road

Good

Over: Scotch Run

1 MI NORTH OF ROCK GLEN R, Luzerne, PA

Built 2018 Load: 44.5 t ADT: 50

Dix Hill Road

Good

Over: Little Juniata Creek

1.5 E. BLMFLD/ L. Juniata, Perry, PA

Built 2019 Load: 44.5 t ADT: 50

GOOD DR

Good

Over: BRUBAKER RUN

NEAR EMBASSY DR, Lancaster, PA

Built 1999 Load: 44.5 t ADT: 8,000

Orchard road

Good

Over: Pleasant Spring Creek

Hilltown 2920-E4, Bucks, PA

Built 1980 Load: 44.5 t ADT: 100

PA 441; SR 0441

Good

Over: CONOY CREEK

S. EDGE OF BAINBRIDGE, Lancaster, PA

Built 1959 Load: 44.7 t ADT: 4,953

I-81 SB

Good

Over: TWP RD 351 SUNSET DRIVE

I-81 SB OVER TWP RD 351, Luzerne, PA

Built 1963 Load: 44.7 t ADT: 25,947

LIMEKILN PIKE

Good

Over: SEPTA

ABINGTON TWP.LINE 3370D03, Montgomery, PA

Built 1959 Load: 44.7 t ADT: 24,057

SR 3023

Good

Over: Pollack Run

N. of PA 136 West Newton, Westmoreland, PA

Built 2009 Load: 44.7 t ADT: 210

US 22; SR 0022

Good

Over: Leb. Valley Rail Trail

1 MI.E. OF 72 & 22 INTER., Lebanon, PA

Built 2012 Load: 44.7 t ADT: 8,220

SR 1004 (LR 05039)

Good

Over: I-70 & I-76

OVER TP (MP 150.9) B-443, Bedford, PA

Built 2011 Load: 44.7 t ADT: 594

Eshelman Road

Good

Over: Mill Creek

1/2 mile South of SR 2039, Lancaster, PA

Built 2013 Load: 44.7 t ADT: 800

SR1053(SADDLE RD.)

Good

Over: SR 78(LR 285 SP.)

SADDLE RD. OVER I-78, Berks, PA

Built 2013 Load: 44.7 t ADT: 90

SR 2021

Good

Over: Shutes Run

7.5 mi N from SR 0040, Fayette, PA

Built 2013 Load: 44.7 t ADT: 3,064

US 222 LITITZ PIKE

Good

Over: AMTRAK RR

City of Lancaster, Lancaster, PA

Built 2014 Load: 44.7 t ADT: 25,976

SAXONBURG BLVD

Good

Over: BULL CREEK

SAXONBURG BLVD NO.1, Butler, PA

Built 2015 Load: 44.7 t ADT: 2,069

Belvidere Rd

Good

Over: Oughoughton Creek

3 MI. W. OF RIVERTON, Northampton, PA

Built 2017 Load: 44.7 t ADT: 2,417

SR 861

Good

Over: Wildcat Run

DIAMOND NO.1, Clarion, PA

Built 2016 Load: 44.7 t ADT: 992

SR 285

Good

Over: Bennett Run

NORTH SHENANGO TOWNSHIP, Crawford, PA

Built 2017 Load: 44.7 t ADT: 2,178

PALMER RD(SR 3013)

Good

Over: MIDDLE RUN

GERMAN TOWNSHIP, Fayette, PA

Built 2017 Load: 44.7 t ADT: 192

Berry Rd (SR 2008)

Good

Over: STUMP CREEK

STUMP CREEK NO.2, Jefferson, PA

Built 2018 Load: 44.7 t ADT: 325

BRADY RUN RD

Good

Over: SOUTH BRANCH BRADY RUN

200EAST&UNDER SR 0060, Beaver, PA

Built 2017 Load: 44.7 t ADT: 1,813

Beaverdam Rd

Good

Over: BEAVERDAM CREEK

VILLAGE OF QUEEN, Bedford, PA

Built 2017 Load: 44.7 t ADT: 1,049

T-706

Good

Over: PA TPK (I-76)

W. of Carlisle Int., Cumberland, PA

Built 2017 Load: 44.7 t ADT: 500

SR3021 STAFFORD AV

Good

Over: STAFFORD MEADOW BROOK

SCRANTON CTY 1 M W TR 307, Lackawanna, PA

Built 2017 Load: 44.7 t ADT: 55

Whitney Hill Road

Good

Over: MIDDLE BR GENESEE R

500 FT SE OF SR 2002, Potter, PA

Built 2018 Load: 44.7 t ADT: 20

McWILLIAMS TRAIL

Good

Over: ROARING CREEK

2 MI WEST OF SR 46, Columbia, PA

Built 2019 Load: 44.7 t ADT: 2

SR0028

Good

Over: Trib to Cowanshannock Cr

POVERTY HILL, Armstrong, PA

Built 2020 Load: 44.7 t ADT: 7,673

SR 568(LR 06084)

Good

Over: Allegheny Creek

GREEN HILLS ROAD, Berks, PA

Built 2023 Load: 44.7 t ADT: 1,814

PA 53

Good

Over: SANDY RUN

0.8 MILE SOUTH OF SR 253, Cambria, PA

Built 2022 Load: 44.7 t ADT: 1,375

T-488 HOLLIS ROAD

Good

Over: OVER WATSON RUN

1 MI.S.SR-0006 ON T-488, Crawford, PA

Built 1960 Load: 45.0 t ADT: 400

SR4026

Good

Over: LITTLE MAHONING CREEK

SMICKSBURG NO.3, Indiana, PA

Built 1960 Load: 45.0 t ADT: 252

SR 1003

Good

Over: WALLIS RUN

2 MI SE OF CALVERT, Lycoming, PA

Built 1938 Load: 45.0 t ADT: 651

Showing 17,801-17,850 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.