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

PA TPK (I-576)

Good

Over: SR3071 POTATO GARD RUN

FINDLAY, Allegheny, PA

Built 2004 Load: 46.3 t ADT: 2,025

SR 120-PA 120

Good

Over: SHINTOWN RUN

SHINTOWN, Clinton, PA

Built 2006 Load: 46.3 t ADT: 660

T-315 CENTRAL AVE

Good

Over: TWO MILE RUN

200 FT SOUTH OF US 6, McKean, PA

Built 2006 Load: 46.3 t ADT: 165

SR 48 SB

Good

Over: N & S RR Turtle Creek

South of SR 130 Intersect, Allegheny, PA

Built 2006 Load: 46.3 t ADT: 8,021

SR 219-US 219

Good

Over: SR 4013 (PA 46)

OVER KENDALL AVE, McKean, PA

Built 2006 Load: 46.3 t ADT: 4,717

BRIDGE 2811

Good

Over: LITTLE DEER CK

RIGGS RD. SHENANGO TWP., Mercer, PA

Built 2007 Load: 46.3 t ADT: 233

Spring Road

Good

Over: Shermans Creek

Shermansdale, Perry, PA

Built 2008 Load: 46.3 t ADT: 11,289

SR 61

Good

Over: N. Br. of Shamokin Creek

Village of Atlas, Northumberland, PA

Built 2008 Load: 46.3 t ADT: 9,183

SR 15 NBL

Good

Over: T-722

1.5 MI S. LAWRENCEVILLE B, Tioga, PA

Built 2008 Load: 46.3 t ADT: 4,320

SR 3005

Good

Over: STONY FORK CREEK

STONY FORK STATE PARK, Tioga, PA

Built 2008 Load: 46.3 t ADT: 152

SR 8009 RAMP G

Good

Over: I-79 376E&W CAMBLS RNRD

79/376 INTERCHANGE, Allegheny, PA

Built 2008 Load: 46.3 t ADT: 6,601

PA 309 BY-PASS

Good

Over: COMMERCE DRIVE

FORT WASHINGTON 3257H09, Montgomery, PA

Built 2008 Load: 46.3 t ADT: 63,453

SR 4001

Good

Over: SR 0422 EB & WB

1 mi. West of SR 0008, Butler, PA

Built 2009 Load: 46.3 t ADT: 2,840

T-343

Good

Over: PINE RUN

1.8 MI ESE OF LARRYS CRK, Lycoming, PA

Built 2009 Load: 46.3 t ADT: 150

PA 305

Good

Over: SHAVERS CREEK

PETERSBURG, Huntingdon, PA

Built 2009 Load: 46.3 t ADT: 2,433

SR 0982

Good

Over: Loyalhanna Creek

N of Youngstown, Westmoreland, PA

Built 2009 Load: 46.3 t ADT: 10,523

Himmelwright Road

Good

Over: W Branch Perkiomen Creek

1.3 Mi E SR100 ADC 2803J8, Montgomery, PA

Built 2009 Load: 46.3 t ADT: 79

I 80 EB

Good

Over: SR 4009

BLOOMSBURG, Columbia, PA

Built 2009 Load: 46.3 t ADT: 14,898

PA 164

Good

Over: SONMAN RUN

0.1 MI EAST PA 53 PORTAGE, Cambria, PA

Built 2010 Load: 46.3 t ADT: 8,744

SR 1015

Good

Over: HILLEGAS RUN

2.6 MILE SOUTH OF PA 31, Somerset, PA

Built 2010 Load: 46.3 t ADT: 96

COUNTY LINE ROAD

Good

Over: WEST BR. NESHAMINY CREEK

1.2 MI. W. US202 3033A06, Bucks, PA

Built 2011 Load: 46.3 t ADT: 13,985

SR 27

Good

Over: OVER DUNDERDALE CREEK

ELDRED TWP, Warren, PA

Built 2010 Load: 46.3 t ADT: 1,356

SR3039

Good

Over: FIVEMILE RUN

5 MI S BROOKVILLE, Jefferson, PA

Built 2010 Load: 46.3 t ADT: 219

T-482

Good

Over: PA TPK (I-76)

WEST PENNSBORO TWP, Cumberland, PA

Built 2010 Load: 46.3 t ADT: 1,746

SR 285 TOWNHOUSE R

Good

Over: WYMANS RUN

FAIRFIELD TWP, Crawford, PA

Built 2012 Load: 46.3 t ADT: 2,945

PA 194; BALT.PK.

Good

Over: REYNOLDS RUN

0.4 MI.N. ADAMS CO.LINE, York, PA

Built 2012 Load: 46.3 t ADT: 3,879

SR 3071

Good

Over: Little Sewickley Creek

0.1 mi S from SR 0136, Westmoreland, PA

Built 2012 Load: 46.3 t ADT: 3,660

S OLDS BOULEVARD

Good

Over: QUEEN ANNE CREEK

0.4MI W OF SR2051 3263-C3, Bucks, PA

Built 2013 Load: 46.3 t ADT: 5,200

Nichola Rd SR3013

Good

Over: Buffalo Creek

Nichola No.1, Armstrong, PA

Built 2015 Load: 46.3 t ADT: 1,053

Hamilton St

Good

Over: CEDAR CREEK

HAMILTON ST., Lehigh, PA

Built 2019 Load: 46.3 t ADT: 14,282

Preserve Road

Good

Over: McKee Run

3 MI. N. WASHINGTONVILLE, Montour, PA

Built 2017 Load: 46.3 t ADT: 405

LEESPORT AVE

Good

Over: Willow Creek

WILLOW CREEK BRIDGE, Berks, PA

Built 2017 Load: 46.3 t ADT: 4,255

Irish Hill Rd

Good

Over: Wappasening Creek

1 MI. W. OF WARREN CENTER, Bradford, PA

Built 2017 Load: 46.3 t ADT: 127

Sulphur Springs Rd

Good

Over: Little Juniata

2 NW Ducannon/L. juniata, Perry, PA

Built 2016 Load: 46.3 t ADT: 100

Idlewood Avenue

Good

Over: Whiskey Run

Idlewood Avenue, Allegheny, PA

Built 2018 Load: 46.3 t ADT: 175

Winters Road

Good

Over: Cherry Run

GOSHEN, Union, PA

Built 2019 Load: 46.3 t ADT: 10

South Albert St

Good

Over: Trout Creek

North of Chapel Ave, Lehigh, PA

Built 2015 Load: 46.3 t ADT: 250

SR3004

Good

Over: Pine Run

1.7 mi N SR 3002 Intersec, Jefferson, PA

Built 2019 Load: 46.3 t ADT: 81

SR 1001

Good

Over: TRIB TO PINE CREEK

BROOKLAND, Potter, PA

Built 2020 Load: 46.3 t ADT: 210

CLEARVIEW RD.

Good

Over: Davidsburg Run

0.2 MI N OF SR 4008, York, PA

Built 2023 Load: 46.3 t ADT: 700

T-593 Gowdy Road

Good

Over: McCauley Run

1.5 mi. N of SR 0157, Clarion, PA

Built 2022 Load: 46.3 t ADT: 100

PEREGRINE WAY

Good

Over: Sears Run

4.5 mi W Enola, Cumberland, PA

Built 2004 Load: 46.3 t ADT: 500

I-76

Good

Over: SEVENTH STREET

SEVENTH OVERPASS 37G07, Philadelphia, PA

Built 1957 Load: 46.7 t ADT: 80,588

Ohio River Blvd

Good

Over: Lowries Run

Emsworth Boro, Allegheny, PA

Built 2011 Load: 46.7 t ADT: 21,180

SR 2003(LR 45007)

Good

Over: CHERRY CREEK

KEMMERTOWN ROAD, Monroe, PA

Built 2012 Load: 46.7 t ADT: 246

T-730 (CO BR #26)

Good

Over: SPAULDING CREEK

2.9 MI NORTH OF ULSTER, Bradford, PA

Built 2014 Load: 46.7 t ADT: 50

SR 850-PA 850

Good

Over: DOUGHERTY RUN

1 MI SE REEDS GAP, Juniata, PA

Built 2014 Load: 46.7 t ADT: 236

GIBSON ST

Good

Over: LOWRIES RUN

429003 OFFCAMP HORNE RD E, Allegheny, PA

Built 2015 Load: 46.7 t ADT: 100

Frew Mill Rd

Good

Over: Big Run

300 west of Big Run Road, Lawrence, PA

Built 2016 Load: 46.7 t ADT: 697

Big Spring Road

Good

Over: Br. Tuscarora Creek

1 ML. N. OF DOYLESBURG, Franklin, PA

Built 2016 Load: 46.7 t ADT: 276

Showing 18,251-18,300 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.