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

I-83; SR 0083

Good

Over: SR 3024; Locust Lane

PROGRESS, Dauphin, PA

Built 2021 Load: 47.6 t ADT: 74,815

PINE SWAMP RD

Good

Over: N. BRANCH MAHANTANGO CRK

2 MI N.W. OF MEISERVILLE, Snyder, PA

Built 1955 Load: 48.0 t ADT: 255

SR 0138

Good

Over: S BR SLIPPERY ROCK CREEK

2.4mi E SR 308 Inter., Butler, PA

Built 2011 Load: 48.0 t ADT: 1,087

SR 2014 SCRUBGRASS

Good

Over: WOLF CREEK

WOLF, Mercer, PA

Built 2012 Load: 48.0 t ADT: 472

Tryon St (SR 2007)

Good

Over: HOLBERT CREEK

BERLIN TWP @ JCT SR 2009, Wayne, PA

Built 2016 Load: 48.0 t ADT: 335

GRD ARMY OF RP HW

Good

Over: Four Mile Run

SHEFFIELD TOWNSHIP, Warren, PA

Built 2018 Load: 48.0 t ADT: 4,544

North Rd (SR 0231)

Good

Over: BRUSH RUN

BLAINE & INDEPENDENCE TWP, Washington, PA

Built 2018 Load: 48.0 t ADT: 329

Pike Run Dr

Good

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 2017 Load: 48.0 t ADT: 198

SR 0422 WB

Good

Over: SR 3005

Intersect SR 422 & SR3005, Armstrong, PA

Built 2020 Load: 48.0 t ADT: 8,625

SR 1009

Good

Over: Chartiers Run

HOUSTON BOROUGH, Washington, PA

Built 2021 Load: 48.0 t ADT: 8,321

SR 1014

Good

Over: TRIB BERMUDIAN CREEK

2 MI.S.W. OF YORK SPRINGS, Adams, PA

Built 1985 Load: 48.1 t ADT: 505

CROSSTOWN BLVD

Good

Over: 7TH AVE RAMP D

579 SB.OVER RAMP D, Allegheny, PA

Built 1962 Load: 48.1 t ADT: 27,514

PA TPK (I-76)

Good

Over: T-732

NEAR MILLTOWN, Allegheny, PA

Built 1952 Load: 48.1 t ADT: 38,689

PA TPK (I-376)

Good

Over: SR 0551

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 48.1 t ADT: 9,871

PA 326

Good

Over: SWEET ROOT CREEK

0.6 MILE NORTH OF SR 2002, Bedford, PA

Built 1954 Load: 48.1 t ADT: 234

SR 1001

Good

Over: IMLERTOWN RUN

.25 MI.E.OF IMLERTOWN, Bedford, PA

Built 1980 Load: 48.1 t ADT: 572

I-99 / US 220 NBL

Good

Over: PA 764/SR 1018 @ EXIT 39

1 MI EAST OF PINECROFT, Blair, PA

Built 1994 Load: 48.1 t ADT: 9,374

I-99 / US 220 SBL

Good

Over: PA 764 @ EXIT 39

1 MI EAST OF PINECROFT, Blair, PA

Built 1994 Load: 48.1 t ADT: 10,286

SR 3013

Good

Over: SOUTH POPLAR RUN

0.25 MI N OF CLAYSBURG, Blair, PA

Built 1957 Load: 48.1 t ADT: 6,540

T-337 TWP. BR # 1

Good

Over: MUD CREEK

2.4 MI. SE OF TROY, Bradford, PA

Built 1991 Load: 48.1 t ADT: 75

SR2011

Good

Over: LARDINTOWN RUN

LARDINTOWN NO.1, Butler, PA

Built 1940 Load: 48.1 t ADT: 241

PA 53

Good

Over: LITTLE CONEMAUGH RIVER

0.2 MILE SOUTH OF TR 164, Cambria, PA

Built 1992 Load: 48.1 t ADT: 3,800

SR 2013

Good

Over: HOWELLS RUN

.5 MI.S.OF EBENSBURG, Cambria, PA

Built 1937 Load: 48.1 t ADT: 374

SR 2001

Good

Over: FOLEY DRAFT

5 MI SW SINNEMAHONING, Cameron, PA

Built 1993 Load: 48.1 t ADT: 383

McCALL DAM ROAD

Good

Over: WHITE DEER CREEK

300 S WHITE DEER CRK RD, Centre, PA

Built 2000 Load: 48.1 t ADT: 50

EAST BOOT ROAD

Good

Over: RIDLEY CREEK

0.25 Mi E PA 352 3584-D2, Chester, PA

Built 1970 Load: 48.1 t ADT: 970

SR1013

Good

Over: TOBY CREEK

SCOTCH HILL, Clarion, PA

Built 1905 Load: 48.1 t ADT: 67

SR 2004

Good

Over: FISHING CREEK

MACKEYVILLE, Clinton, PA

Built 1986 Load: 48.1 t ADT: 847

BIG BASIN RD

Good

Over: SHINTOWN RUN

1.6 MI WEST OF SR 144, Clinton, PA

Built 1997 Load: 48.1 t ADT: 20

T-757 CO BR NO 156

Good

Over: EAST BR. FISHING CREEK

0.6 MI SE OF CENTRAL, Columbia, PA

Built 1995 Load: 48.1 t ADT: 50

581

Good

Over: LOCUST LANE

.2MI.S. OF I-81, Cumberland, PA

Built 1995 Load: 48.1 t ADT: 23,464

MID-COUNTY EXWY.NB

Good

Over: DARBY CREEK

BLUE ROUTE 25K05, Delaware, PA

Built 1990 Load: 48.1 t ADT: 46,663

STATE ROAD

Good

Over: CRUM CREEK

1.MI.E.OF PA 252 34F02, Delaware, PA

Built 1998 Load: 48.1 t ADT: 6,777

PRIMOS AVENUE

Good

Over: AMTRAK

.5MI.S.CHESTER PK. 35J08, Delaware, PA

Built 1987 Load: 48.1 t ADT: 10,359

BALTIMORE PIKE

Good

Over: CRUM CREEK

1MI.EAST OF MEDIA 34G06, Delaware, PA

Built 1991 Load: 48.1 t ADT: 26,383

SR 120-PA 120

Good

Over: ELK CREEK

RIDGWAY BOROUGH, Elk, PA

Built 1987 Load: 48.1 t ADT: 4,556

SR 3006 CROSSINGVL

Good

Over: OVER CUSSEWAGO CREEK

ELK CREEK TOWNSHIP, Erie, PA

Built 1986 Load: 48.1 t ADT: 2,943

T-300 WILSON ROAD

Good

Over: DARROW BROOK

1/2 MI W OF FINN ROAD, Erie, PA

Built 1965 Load: 48.1 t ADT: 11

SR 4034

Good

Over: OVER CSX RAILROAD

CITY OF ERIE, Erie, PA

Built 1990 Load: 48.1 t ADT: 14,278

T381 BLAIRS HILL R

Good

Over: TONOLOWAY CREEK

.5 MI.E.OF SIPES MILL, Fulton, PA

Built 1937 Load: 48.1 t ADT: 69

SR 4007

Good

Over: WOODEN BRIDGE CREEK

4 MI.N.OF SALUVIA, Fulton, PA

Built 1941 Load: 48.1 t ADT: 395

SR 3019

Good

Over: GREAT TROUGH CREEK

1.6 MILE NORTH OF SR 3025, Huntingdon, PA

Built 1999 Load: 48.1 t ADT: 571

SR 4002

Good

Over: REEDS RUN

1.5 MI.NW.OF PETERSBURG, Huntingdon, PA

Built 1952 Load: 48.1 t ADT: 164

UNION STREET

Good

Over: LACKAWANNA RIVER

OLD FORGE 150 N MAIN ST, Lackawanna, PA

Built 1960 Load: 48.1 t ADT: 1,458

PA 23; SR 0023

Good

Over: Trib Little Conestoga

0.5 MI.W. of Lancaster, Lancaster, PA

Built 1988 Load: 48.1 t ADT: 11,631

PA 272; SR 0272

Good

Over: East Penn R.R.

N OF EPHRATA BORO, Lancaster, PA

Built 1942 Load: 48.1 t ADT: 12,477

PA 896; Georgetown

Good

Over: Octoraro Creek

Lanc.-Chester Co. Line, Lancaster, PA

Built 1991 Load: 48.1 t ADT: 2,432

T-548 MILLCROSS RD

Good

Over: STAUFFER RUN

500 FT NW OF T-551, Lancaster, PA

Built 1992 Load: 48.1 t ADT: 4,000

SR 0309 TR 309

Good

Over: LUZ CO RAIL AUTHORITY

WB CITY .2 M N SR 2020, Luzerne, PA

Built 1991 Load: 48.1 t ADT: 46,639

SR 14

Good

Over: OVER GRAYS RUN

3 MILES NW OF TROUT RUN, Lycoming, PA

Built 1928 Load: 48.1 t ADT: 4,065

Showing 18,501-18,550 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.