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

Violet Lane

Good

Over: East Branch Indian Creek

0.2 Mi N US-30 3588-H2, Montgomery, PA

Built 1986 Load: 35.3 t ADT: 500

PA 601

Good

Over: ROARING RUN

PILLTOWN, Somerset, PA

Built 2012 Load: 35.3 t ADT: 2,713

EAST POLAND AVE

Good

Over: HICKORY RUN

1/2 MI E.OF BESSEMER LINE, Lawrence, PA

Built 2012 Load: 35.3 t ADT: 3,418

SR 4029

Good

Over: North Fork Cross Creek

6.3 mi W from SR 0018, Washington, PA

Built 2012 Load: 35.3 t ADT: 885

PA 272; SR 0272

Good

Over: COCALICO CREEK

1 MI. SW OF REAMSTOWN, Lancaster, PA

Built 2013 Load: 35.3 t ADT: 12,477

T-846 MARWOOD RD

Good

Over: ROUGH RUN

200 FT SW of SR 1019, Butler, PA

Built 2013 Load: 35.3 t ADT: 650

PA 183 (LR310)

Good

Over: US 222 (LR1035)

SR 222 INTERCHANGE, Berks, PA

Built 2013 Load: 35.3 t ADT: 12,988

SR 4037

Good

Over: Robinson Run

0.9 mi W from SR 0980, Washington, PA

Built 2013 Load: 35.3 t ADT: 3,259

SR 1005

Good

Over: PA Turnpike (I-76)

SR 1005 (I-76 MM 244.9), York, PA

Built 2013 Load: 35.3 t ADT: 409

COWPATH ROAD

Good

Over: BRANCH SKIPPACK CREEK

2 MI. E. I-476 3031G3, Montgomery, PA

Built 2014 Load: 35.3 t ADT: 10,000

SR 0070

Good

Over: Allegheny Valley R/R

0.7 mi W from SR 0079, Washington, PA

Built 2013 Load: 35.3 t ADT: 25,488

SR 1014

Good

Over: GLEN BROOK

0.5 mi W of Berwick, Columbia, PA

Built 2014 Load: 35.3 t ADT: 2,354

SR 2018

Good

Over: TRIB PINE CREEK

COBURN, Centre, PA

Built 2014 Load: 35.3 t ADT: 151

SR 4003

Good

Over: SILVER CREEK

2 MI NE MONTMORENCI, Elk, PA

Built 2014 Load: 35.3 t ADT: 622

SR 1016

Good

Over: WHITE BRANCH NORTH FORK

NORTH FORK, Potter, PA

Built 2014 Load: 35.3 t ADT: 204

Mill Road

Good

Over: Trib. Neshaminy Creek

300 East of T415/2920H10, Bucks, PA

Built 2014 Load: 35.3 t ADT: 400

T-421

Good

Over: PA TPK (I-76)

West of Kegg, Bedford, PA

Built 2013 Load: 35.3 t ADT: 58

SR 19 PERRY HWY.

Good

Over: BLACK RUN

SANDY CREEK TWP, Mercer, PA

Built 2015 Load: 35.3 t ADT: 2,559

Buena Vista Rd

Good

Over: Pequea Creek

1 MI West of SR 897, Lancaster, PA

Built 2015 Load: 35.3 t ADT: 515

Osceola Mill Rd

Good

Over: Pequea Creek

3/4 mi south of SR 772, Lancaster, PA

Built 2015 Load: 35.3 t ADT: 680

Starlight Lake Rd

Good

Over: SHEHAWKEN CREEK

BUCKINGHAM TWP 90N SR370, Wayne, PA

Built 2015 Load: 35.3 t ADT: 136

SR 1021

Good

Over: ABRAHAMS CREEK

KINGSTON TWP .1M S SR1036, Luzerne, PA

Built 2015 Load: 35.3 t ADT: 6,863

Philipsburg Area H

Good

Over: Emigh Run

MORRISDALE, Clearfield, PA

Built 2016 Load: 35.3 t ADT: 5,000

SR 4023

Good

Over: ELEVEN MILE CREEK

CHRYSTAL, Potter, PA

Built 2017 Load: 35.3 t ADT: 301

Blue Ball Rd

Good

Over: Laurel Run

WEST DECATUR, Clearfield, PA

Built 2016 Load: 35.3 t ADT: 939

SR 2003

Good

Over: REIDS RUN

1.1 Mi S SR 68 Inter., Clarion, PA

Built 2016 Load: 35.3 t ADT: 1,131

Union Valley Road

Good

Over: McKee Run

500 East of Twp Rd 434, Lawrence, PA

Built 2016 Load: 35.3 t ADT: 1,101

PA997;Cumberland H

Good

Over: Muddy Run

1.75 S.OF PLESANT HALL, Franklin, PA

Built 2016 Load: 35.3 t ADT: 5,841

PARK RD (SR 4019)

Good

Over: N. BR. BRADYS RUN

1/2 MI. WEST OF SR 4021, Beaver, PA

Built 2016 Load: 35.3 t ADT: 789

SR 467

Good

Over: JOHNSON CREEK

2.5 MI.E OF ALLIS HOLLOW, Bradford, PA

Built 2016 Load: 35.3 t ADT: 911

SR 3022 OLD RT 6

Good

Over: IRVINE RUN

BROKENSTRAW TWP, Warren, PA

Built 2016 Load: 35.3 t ADT: 1,353

Yarnell Road

Good

Over: LITTLE MARSH CREEK

YARNELL, Centre, PA

Built 2016 Load: 35.3 t ADT: 299

KNIGHT ROAD

Good

Over: GREEN LANE RESERVOIR

0.5 Mi SE SR633 2916-J1, Montgomery, PA

Built 2016 Load: 35.3 t ADT: 2,568

PA 183 (LR 310SP)

Good

Over: I-78 (LR 141)

PA 183 / I-78 INTERCHANGE, Berks, PA

Built 2017 Load: 35.3 t ADT: 10,109

SWIFT RUN ROAD

Good

Over: SWIFT RUN

SPRING TOWNSHIP, Snyder, PA

Built 2016 Load: 35.3 t ADT: 25

Stony Hill Road

Good

Over: BIG BEAVER CREEK

1 MI NE CAMARGO, Lancaster, PA

Built 2017 Load: 35.3 t ADT: 540

Harmony Ridge Rd

Good

Over: FISHING CREEK

0.5 MI NE OF DRUMORE, Lancaster, PA

Built 2018 Load: 35.3 t ADT: 429

Grand Army Hwy

Good

Over: Wintroth Run

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2017 Load: 35.3 t ADT: 7,063

VIRGINIA DRIVE

Good

Over: PINE RUN

1Mi SW Rte 2017 3258A9, Montgomery, PA

Built 2017 Load: 35.3 t ADT: 7,000

MAWHINNEY RD TR708

Good

Over: MILLERS RUN

50 South of SR 0050, Washington, PA

Built 2016 Load: 35.3 t ADT: 400

SR 2036

Good

Over: CARNAHAN RUN

1.1 Mi E SR 2057 Inter., Armstrong, PA

Built 2017 Load: 35.3 t ADT: 453

T-420 CURRY RUN RD

Good

Over: CURRY RUN

4750 FT NW OF US 219, Clearfield, PA

Built 2017 Load: 35.3 t ADT: 30

SR 59- PA 59

Good

Over: BLACKSMITH RUN

SMETHPORT, McKean, PA

Built 2017 Load: 35.3 t ADT: 2,170

PA 616; SR 0616

Good

Over: TRIB TO S BR CODORUS CR

SEVEN VALLEYS, York, PA

Built 2017 Load: 35.3 t ADT: 1,382

T-309 HARTLEY TWP

Good

Over: PENNS CREEK

LAUREL PARK, Union, PA

Built 2018 Load: 35.3 t ADT: 148

SR 4028

Good

Over: Steels Run

1.6 mi W from SR 4051, Westmoreland, PA

Built 2018 Load: 35.3 t ADT: 753

MAPLE STREET EXT.

Good

Over: MCCLURES RUN

60 FT E. OF WEST. DR. ROT, Lawrence, PA

Built 2021 Load: 35.3 t ADT: 300

T-544 Werley Road

Good

Over: Cedar Creek Tributary

.75 MI S of Tilghman St, Lehigh, PA

Built 2018 Load: 35.3 t ADT: 250

Boundary Avenue

Good

Over: Mill Creek

0.2 MI SE of SR 2002/2007, York, PA

Built 2018 Load: 35.3 t ADT: 176

OLD FORTY FOOT RD.

Good

Over: SKIPPACK CREEK

KULPSVILLE 3142J04, Montgomery, PA

Built 2019 Load: 35.3 t ADT: 6,566

Showing 14,051-14,100 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.