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

Inverness Lane

Good

Over: Terwood Run

.5 Mi. N. PA-63 3259-H10, Montgomery, PA

Built 2014 Load: 51.7 t ADT: 100

T-627 (CORBY ROAD)

Good

Over: BALDWIN CREEK

MIDDLETOWN TWP BRIDGE #1, Susquehanna, PA

Built 2015 Load: 51.7 t ADT: 250

BERWICK DRIVE

Good

Over: BUCKTOE CREEK

E OF LONGO DRIVE 3911-B1, Chester, PA

Built 2000 Load: 51.7 t ADT: 500

STARR ROAD

Good

Over: WHISKEY RUN

E OF PENN RD 3910H02, Chester, PA

Built 2000 Load: 51.7 t ADT: 1,000

FONT ROAD

Good

Over: BLACK HORSE CREEK

SE Saint Andrews Ln3361G4, Chester, PA

Built 1990 Load: 51.7 t ADT: 1,100

Frantz Hill Road

Good

Over: Scot Run

0.2 MI WEST OF PA611, Monroe, PA

Built 2019 Load: 51.7 t ADT: 500

CARR HILL RD T-466

Good

Over: FOREST LAKE CREEK

FOREST LAKE CREEK BRIDGE, Susquehanna, PA

Built 2010 Load: 51.7 t ADT: 50

TR635 WHITELIGH RO

Good

Over: SOUTH BRANCH EQUINUNK CR

TR635 WHITELEIGH RD/S BRA, Wayne, PA

Built 2013 Load: 51.7 t ADT: 10

HARRISBURG RUN RD

Good

Over: FOSTER BROOK

600 NORTH OF SR 346, McKean, PA

Built 2023 Load: 51.7 t ADT: 250

SR 1005

Good

Over: S BR LITTLE AUGHWICK CRK

4 MI.S.OF BURNT CABINS, Fulton, PA

Built 1936 Load: 51.8 t ADT: 845

HEINZ CAMP RD

Good

Over: SLIPPERY ROCK CREEK

ON WAYNE/PERRY TWP LINE, Lawrence, PA

Built 1948 Load: 51.8 t ADT: 128

SR 1004

Good

Over: LOPEZ CREEK

VILLAGE OF LOPEZ, Sullivan, PA

Built 1937 Load: 51.8 t ADT: 369

FERRY STREET

Good

Over: DELAWARE CANAL

NEW HOPE BOROUGH, Bucks, PA

Built 2012 Load: 51.8 t ADT: 440

SR 4001

Good

Over: UPPER TWO MILE RUN

SUGARCREEK BORO, Venango, PA

Built 2011 Load: 51.8 t ADT: 58

PA TPK (TOLL 43)

Good

Over: Two Mile Run

Exit 28, Washington, PA

Built 2011 Load: 51.8 t ADT: 200

T-406 SMITH ROAD

Good

Over: TRIB TO CONNEAUT CK

0.5 MI W OF CONNEAUTVILLE, Crawford, PA

Built 2012 Load: 51.8 t ADT: 50

SR 0019

Good

Over: Calvin Run

13.5 mi S from SR 0021, Greene, PA

Built 2012 Load: 51.8 t ADT: 268

RIVER ROAD

Good

Over: TOHICKON CREEK

POINT PLEASANT 2811K03, Bucks, PA

Built 2016 Load: 51.8 t ADT: 1,590

Rockhill Road

Good

Over: Three Mile Run

North Perkasie 2808C8, Bucks, PA

Built 2014 Load: 51.8 t ADT: 630

Library Rd.

Good

Over: Saw Mill Run

SR 51 and SR 88 Intersect, Allegheny, PA

Built 2015 Load: 51.8 t ADT: 21,171

SR 0940 SH

Good

Over: Davey Run

2 MI. E. of Blakeslee, Monroe, PA

Built 2015 Load: 51.8 t ADT: 5,650

Little Pine Crk Rd

Good

Over: LITTLE PINE CREEK

NEAR TOWNSHIP GARAGE, Allegheny, PA

Built 2015 Load: 51.8 t ADT: 1,904

VANCES MILL RD

Good

Over: BUTE RUN

N. UNION & FRANKLIN TWPS., Fayette, PA

Built 2017 Load: 51.8 t ADT: 589

PULASKI RD

Good

Over: DEER CREEK TRIB

1.5 MI. FROM ST.LINE, Lawrence, PA

Built 2017 Load: 51.8 t ADT: 1,426

Plank Rd ALT 220

Good

Over: Laurel Run

PORT MATILDA, Centre, PA

Built 2018 Load: 51.8 t ADT: 3,400

SR 120-PA 120

Good

Over: MILL RUN

7 MILE EAST SINNEMAHONING, Clinton, PA

Built 2018 Load: 51.8 t ADT: 300

SR 92

Good

Over: HICKS CREEK

0.1 M N OF SR 1027, Luzerne, PA

Built 2019 Load: 51.8 t ADT: 7,022

RAMP WS-C

Good

Over: SR 0376 & BUSINESS 376

INT 376 AND BUS 376, Allegheny, PA

Built 1991 Load: 52.2 t ADT: 1,550

SR 408 THOMPSON ST

Good

Over: THOMPSON CREEK

HYDETOWN BOROUGH, Crawford, PA

Built 2016 Load: 52.2 t ADT: 1,866

Abels Road

Good

Over: CABIN CREEK

1 MILE N OF CRALEY, York, PA

Built 2016 Load: 52.2 t ADT: 1,938

ROXBURY ROAD

Good

Over: DOUBLING GAP CREEK

0.4 MI SOUTH OF MCCREA, Cumberland, PA

Built 2017 Load: 52.2 t ADT: 422

SR 1021

Good

Over: PINE RUN

0.3 Mi N SR 1010 Inter., Armstrong, PA

Built 2017 Load: 52.2 t ADT: 86

SR 1018

Good

Over: Martins Creek NFSRC

Messinger Street, Northampton, PA

Built 2017 Load: 52.2 t ADT: 3,840

SR4003

Good

Over: Sugar Creek

BRADYS BEND NO.16, Armstrong, PA

Built 2019 Load: 52.2 t ADT: 493

PA 462; Market St.

Good

Over: Mill Creek

0.01 MI W OF EXIT-19 I-83, York, PA

Built 2022 Load: 52.2 t ADT: 29,918

KRESSMAN ROAD

Good

Over: FREYS RUN CREEK

0.3 MILE WEST OF PA 611, Northampton, PA

Built 2023 Load: 52.2 t ADT: 75

GOLF COURSE RD

Good

Over: CARBAUGH RUN

0.1 MI SOUTH OF US 30, Adams, PA

Built 2018 Load: 52.5 t ADT: 142

PA 403

Good

Over: DIXIE RUN

HOOVERSVILLE BOROUGH, Somerset, PA

Built 2019 Load: 52.5 t ADT: 1,164

RT 0022 EB WB

Good

Over: OAKDALE ROAD SR 3063

OVER OAKDALE ROAD, Allegheny, PA

Built 1964 Load: 52.6 t ADT: 22,115

AIRPORT RD

Good

Over: SERVICE RD & MCCLAREN RN

NEAR MCCLAREN RN RD INTCH, Allegheny, PA

Built 1992 Load: 52.6 t ADT: 19,916

RAYMOND SHAFER HW

Good

Over: SR 3048-NOBLESTOWN RD.

I 79 NB OVER SR 3048, Allegheny, PA

Built 1972 Load: 52.6 t ADT: 24,542

MONRV-TURTL CRK RD

Good

Over: TURTLE CREEK BRANCH

TL12 TURTLE CREEK NO 12, Allegheny, PA

Built 1990 Load: 52.6 t ADT: 7,700

RAMP B

Good

Over: N-SRR PAT LRT PAT EBSWY

Veterans Bridge, Allegheny, PA

Built 1986 Load: 52.6 t ADT: 7,891

SR 1026(LR 664)

Good

Over: BIEBER CREEK

1 MI.SO.OF LOBACHSVILLE, Berks, PA

Built 1961 Load: 52.6 t ADT: 518

PA 453

Good

Over: SINK RUN

TYRONE BOROUGH, Blair, PA

Built 1941 Load: 52.6 t ADT: 1,759

T349 CLOVER CRK RD

Good

Over: CLOVER CREEK

1 MI.S.OF SHELLYTOWN, Blair, PA

Built 1952 Load: 52.6 t ADT: 764

PA 514

Good

Over: NORTH BRANCH TOWANDA CRK

3 MI.W.OF GRANVILLE CTR., Bradford, PA

Built 1995 Load: 52.6 t ADT: 662

NEWTOWN YARDLEY RD

Good

Over: SILVER LAKE;CORE CREEK

JUST E.OF NEWTOWN 32E13, Bucks, PA

Built 1990 Load: 52.6 t ADT: 28,933

OXFORD VALLEY ROAD

Good

Over: QUEEN ANNE CREEK

LEVITTOWN PARKWAY 38A11, Bucks, PA

Built 1954 Load: 52.6 t ADT: 22,907

US 1

Good

Over: S. PENNA. AVE.

MORRISVILLE BORO. 39C04, Bucks, PA

Built 1952 Load: 52.6 t ADT: 53,000

Showing 19,201-19,250 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.