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

TUSCARAWAS ROAD

Good

Over: SR 0376 EB WB

SR 4028 OVER SR 0060, Beaver, PA

Built 2011 Load: 35.0 t ADT: 3,808

SR 4012

Good

Over: HEMLOCK CREEK

10 MI SE OF JERSEYTOWN, Columbia, PA

Built 2011 Load: 35.0 t ADT: 98

MCLAUGHLIN RUN RD

Good

Over: MCLAUGHLIN RUN

1/2 MI. S.E. OF SR 50, Allegheny, PA

Built 2011 Load: 35.0 t ADT: 5,590

LENAPE ROAD

Good

Over: BENNETTS RUN POND

.5 MI. N. U.S. 1 40B12, Chester, PA

Built 2011 Load: 35.0 t ADT: 15,236

SR2012 LTHIS VL RD

Good

Over: S BR TUNKHANNOCK CREEK

CLINTON TWP .3 M S TR 6, Wyoming, PA

Built 2011 Load: 35.0 t ADT: 282

RAMP C

Good

Over: RAMP H

GUSTINE LAKE INT. 3479H08, Philadelphia, PA

Built 2011 Load: 35.0 t ADT: 14,614

SR 1001

Good

Over: Branch of Millers Run

Cecil Township, Washington, PA

Built 2012 Load: 35.0 t ADT: 1,726

SR 0029

Good

Over: BEAVER RUN

NOXEN TWP .2 M N SR 2039, Wyoming, PA

Built 2012 Load: 35.0 t ADT: 1,339

SR 1009

Good

Over: KYLE RUN

1.3mi S SR 830 Intersec, Jefferson, PA

Built 2012 Load: 35.0 t ADT: 398

CAMP ROAD

Good

Over: EAST BR. PERKIOMEN CREEK

1 MI. W. I-476 2918F09, Montgomery, PA

Built 2013 Load: 35.0 t ADT: 1,135

FISSEL CHURCH RD.

Good

Over: CENTERVILLE CREEK

2.5 MILE SW OF GLEN ROCK, York, PA

Built 2012 Load: 35.0 t ADT: 1,671

PA TPK (I-76)

Good

Over: T-456

West Pennsboro Twp., Cumberland, PA

Built 2012 Load: 35.0 t ADT: 21,474

MAIN STREET

Good

Over: LITTLE BEAVER CREEK

200 NORTH OF SR 0351, Lawrence, PA

Built 2013 Load: 35.0 t ADT: 818

Paxton Rd T-670

Good

Over: CHARTIERS CREEK Trib.

100 West of Rt 519, Washington, PA

Built 2011 Load: 35.0 t ADT: 60

SR 2024

Good

Over: LITTLE LAUREL RUN

2 MI NW PHILIPSBURG, Clearfield, PA

Built 2013 Load: 35.0 t ADT: 1,173

PA 235

Good

Over: LAUREL RUN

1 MI N OF LAURELTON, Union, PA

Built 2013 Load: 35.0 t ADT: 262

PA 235

Good

Over: LAUREL RUN

1 MI N OF LAURELTON, Union, PA

Built 2013 Load: 35.0 t ADT: 262

SR 1017

Good

Over: SOUTH CREEK

2 MI N OF HERRICKVILLE, Bradford, PA

Built 2013 Load: 35.0 t ADT: 379

SR 62 RIVERSIDE DR

Good

Over: SAGE RUN

CRANBERRY TWP, Venango, PA

Built 2013 Load: 35.0 t ADT: 3,539

RCK LK RD T-724

Good

Over: EQUINUNK CREEK

255 FT S. EQUIN. CK. RD., Wayne, PA

Built 2013 Load: 35.0 t ADT: 250

SR 0018

Good

Over: Wisecarver Run

0.5 mi N from SR 0021, Greene, PA

Built 2013 Load: 35.0 t ADT: 1,605

T-425 KNAPP ROAD

Good

Over: SPRING CREEK

SPRING CREEK TWP., Warren, PA

Built 2012 Load: 35.0 t ADT: 125

SR 0106 TR 106

Good

Over: E BR TUNKHANNOCK CREEK

CLIFFORD TWP .3M S TR 374, Susquehanna, PA

Built 2014 Load: 35.0 t ADT: 2,081

SR 3014 E.PARK ROW

Good

Over: TROUT RUN

WATERFORD BORO, Erie, PA

Built 2014 Load: 35.0 t ADT: 1,295

S.R. 1033

Good

Over: LITTLE PINE CREEK

1.3 MI E OF BENDERTOWN, Columbia, PA

Built 2015 Load: 35.0 t ADT: 244

SR 1002

Good

Over: LITTLE MARSH CREEK

ROMOLA, Centre, PA

Built 2015 Load: 35.0 t ADT: 299

PA 53

Good

Over: CLEARFIELD CREEK

0.8 MILE SOUTH OF PA 36, Cambria, PA

Built 2015 Load: 35.0 t ADT: 2,040

SR 4031 (OLD 219)

Good

Over: GHOST TOWN TRAIL

EBENSBURG BORO LINE, Cambria, PA

Built 2015 Load: 35.0 t ADT: 9,914

SR 0553

Good

Over: Dutch Run

ALVERDA NO.2, Indiana, PA

Built 2016 Load: 35.0 t ADT: 2,295

FREW MILL RD

Good

Over: BIG RUN

.5 MI.W.TWP.RD.488, Lawrence, PA

Built 2016 Load: 35.0 t ADT: 697

Township Road 880

Good

Over: GRAYS FORK

GRAY TOWNSHIP, Greene, PA

Built 2016 Load: 35.0 t ADT: 20

SR 0006 TR 6 & 11

Good

Over: SR 1017 (COLLEGE AVE)

CLINTON TWP OVER SR 1017, Wyoming, PA

Built 2016 Load: 35.0 t ADT: 10,481

SAVANNAH RD

Good

Over: MCKEE RUN

100 SOUTH OF SR 2012, Lawrence, PA

Built 2017 Load: 35.0 t ADT: 86

SANDY LAKE RD

Good

Over: Mill Creek

NEW LEBANON BOROUGH, Mercer, PA

Built 2017 Load: 35.0 t ADT: 2,524

SR 655-PA 655

Good

Over: Frog Hollow Run

KISHACOQUILLAS, Mifflin, PA

Built 2017 Load: 35.0 t ADT: 6,910

Ohioville Rd

Good

Over: PAINTERS RUN

.4 MI.SW OF TWP.RD.603, Beaver, PA

Built 2018 Load: 35.0 t ADT: 879

VIRGINIA DRIVE

Good

Over: PINE RUN

.6Mi SW Rt 2017 3258B9, Montgomery, PA

Built 2017 Load: 35.0 t ADT: 7,000

WALNUT ST (T-385)

Good

Over: WEST BR. NESHAMINY CRK

1M EOFSR309-3032-K7, Montgomery, PA

Built 2017 Load: 35.0 t ADT: 5,000

Chewton-Wurtemburg

Good

Over: Trib. to Beaver River

300 W. of Twp Rd 450, Lawrence, PA

Built 2017 Load: 35.0 t ADT: 485

Library Road

Good

Over: Br. Piney Fork Creek

200 North of SR 3004, Allegheny, PA

Built 2021 Load: 35.0 t ADT: 10,129

Pleasant Road

Good

Over: Camp Run

435 NW of SR 2011, Lawrence, PA

Built 2017 Load: 35.0 t ADT: 441

PA 147; SR 0147

Good

Over: GURDY RUN

1.5 MI N OF HALIFAX, Dauphin, PA

Built 2017 Load: 35.0 t ADT: 6,189

SR 646-PA 646

Good

Over: FOSTER BROOK

GILMORE, McKean, PA

Built 2017 Load: 35.0 t ADT: 979

LOCUST POINT RD

Good

Over: MILL RACE

1 MI.W. OF WM. GROVE, Cumberland, PA

Built 2017 Load: 35.0 t ADT: 908

S.R. 4022

Good

Over: ORCUTT CREEK

VILLAGE OF WILAWANA, Bradford, PA

Built 2017 Load: 35.0 t ADT: 898

PA 72; SR 0072

Good

Over: SNITZ CREEK

CORNWALL, Lebanon, PA

Built 2017 Load: 35.0 t ADT: 15,460

Lynn Avenue

Good

Over: Lehigh Valley Rail

400 from Rt. 412, Northampton, PA

Built 2017 Load: 35.0 t ADT: 350

SR 1004

Good

Over: OVER MURRAYS RUN

2 MI E OF CALVERT, Lycoming, PA

Built 2018 Load: 35.0 t ADT: 368

PAPER MILL ROAD

Good

Over: PERKIOMEN CREEK

2.2 MI. E. SR100 2804B8, Montgomery, PA

Built 2018 Load: 35.0 t ADT: 228

PA-16;W. Main St.

Good

Over: W Br Little Antietam Crk

Waynesboro, Franklin, PA

Built 2018 Load: 35.0 t ADT: 8,723

Showing 13,951-14,000 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.