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

WESTWOOD RD

Good

Over: UPPER DRY RUN

100 N.W. OF SR 0168, Beaver, PA

Built 1954 Load: 34.7 t ADT: 476

SR 562(LR 06110)

Good

Over: MONOCACY CREEK

3 MI.E.OF JACKSONWALD, Berks, PA

Built 1926 Load: 34.7 t ADT: 4,169

IRISH MEETINGHOUSE

Good

Over: DEEP RUN

BEDMINSTER TWP. 16B08, Bucks, PA

Built 1963 Load: 34.7 t ADT: 1,519

SR 120-PA 120

Good

Over: TANGASCOOTACK CREEK

4 MI NORTHWEST LOCK HAVEN, Clinton, PA

Built 1957 Load: 34.7 t ADT: 2,002

TOWNSHIP LINE ROAD

Good

Over: SEPTA (P&W)

HAVERFORD TOWNSHIP 26J08, Delaware, PA

Built 1935 Load: 34.7 t ADT: 31,649

SR 1051

Good

Over: BREAKNECK RUN

BULLSKIN TOWNSHIP, Fayette, PA

Built 1937 Load: 34.7 t ADT: 845

SR 2017

Good

Over: BRANCH MUDDY CREEK

CUMBERLAND TOWNSHIP, Greene, PA

Built 1946 Load: 34.7 t ADT: 991

SR 4016 OSGOOD RD

Good

Over: OVER CROOKED CREEK

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1963 Load: 34.7 t ADT: 264

SR 0217

Good

Over: Loyalhanna Creek

DERRY TOWNSHIP, Westmoreland, PA

Built 1960 Load: 34.7 t ADT: 7,456

SR 0221

Good

Over: NO. BRANCH TENMILE CREEK

MORRIS TOWNSHIP, Washington, PA

Built 2004 Load: 34.7 t ADT: 544

SR 1010; WALKER RD

Good

Over: I-81; SR 0081

1 MI.N.OF CHAMBERSBURG, Franklin, PA

Built 2005 Load: 34.7 t ADT: 5,876

SR 2044

Good

Over: Trib to Pigeon Creek

INTERSECTION OF SR 2023, Washington, PA

Built 2007 Load: 34.7 t ADT: 1,576

OLD DOUBLING GAP R

Good

Over: DOUBLING GAP CREEK

FOREST DISTRICT 3, Cumberland, PA

Built 2013 Load: 34.7 t ADT: 1

SR 2011

Good

Over: PLUM RUN

13.25 MI S FROM US19, Washington, PA

Built 2008 Load: 34.7 t ADT: 781

SR 1023

Good

Over: Whites Run

Near SR 1051 intersection, Fayette, PA

Built 2009 Load: 34.7 t ADT: 843

Salem Church Road

Good

Over: Bieler Run

1.5 Mi N of SR 4028, Beaver, PA

Built 2011 Load: 34.7 t ADT: 606

Bairs Mill Road

Good

Over: Kreutz creek

1.4 Mi SW Wrightsville/Kr, York, PA

Built 2011 Load: 34.7 t ADT: 128

SR 3017

Good

Over: TRIB BUFFALO RUN

.5 M.N.OF SULPHUR SPRINGS, Bedford, PA

Built 2011 Load: 34.7 t ADT: 130

PA 118

Good

Over: LITTLE MUNCY CREEK

1 MI NE OF LAIRDSVILLE, Lycoming, PA

Built 2011 Load: 34.7 t ADT: 2,530

T-636 ASPEN ROAD

Good

Over: BEAR CREEK

0.25 MI SE of BASSWOOD RD, Butler, PA

Built 2011 Load: 34.7 t ADT: 100

LR 405

Good

Over: BALD EAGLE CREEK

PORT MATILDA BORO, Centre, PA

Built 2011 Load: 34.7 t ADT: 1,333

PICKERING ROAD

Good

Over: PICKERING CREEK

EAST PIKELAND TWP. 14C10, Chester, PA

Built 2011 Load: 34.7 t ADT: 273

SR 4037

Good

Over: ONTELAUNEE CREEK

DONATS PEAK ROAD, Lehigh, PA

Built 2012 Load: 34.7 t ADT: 138

PA TPK (Toll 43)

Good

Over: Dunlap Creek

East of Exit 26, Fayette, PA

Built 2011 Load: 34.7 t ADT: 2,000

SR 0130

Good

Over: Brush Creek

3.2 mi W from SR 0066, Westmoreland, PA

Built 2012 Load: 34.7 t ADT: 9,327

GADSBY ROAD

Good

Over: SOUTH SANDY CREEK

MINERAL TOWNSHIP, Venango, PA

Built 2012 Load: 34.7 t ADT: 50

SR 255-PA 255

Good

Over: SANDY LICK CREEK

SABULA, Clearfield, PA

Built 2012 Load: 34.7 t ADT: 3,394

Pine Street

Good

Over: Little Conemaugh River

Lilly Borough, Cambria, PA

Built 2012 Load: 34.7 t ADT: 25

OLD FORGE ROAD

Good

Over: ROCKY RUN

0.5 Mi E. PA-352 3695-G3, Delaware, PA

Built 2013 Load: 34.7 t ADT: 1,534

SR 1010

Good

Over: TUNKHANNOCK CREEK

CLINTON TWP @ JCT TR 92, Wyoming, PA

Built 2013 Load: 34.7 t ADT: 513

SR 2039

Good

Over: MILL CREEK

1 MI N OF MONTOURSVILLE, Lycoming, PA

Built 2013 Load: 34.7 t ADT: 3,346

PA 145 (LR771)

Good

Over: US 22

SEVENTH ST INTERCHANGE, Lehigh, PA

Built 2013 Load: 34.7 t ADT: 33,709

SR 3019

Good

Over: WILSON CREEK

1.5 MI E OF ROCKWOOD, Somerset, PA

Built 2013 Load: 34.7 t ADT: 131

SR 1001/BUS US 220

Good

Over: LITTLE JUNIATA RIVER

0.5 MI NORTH OF BELLWOOD, Blair, PA

Built 2013 Load: 34.7 t ADT: 4,843

PETERSBURG RD

Good

Over: BR OF SUGAR CREEK

NEAR TR 551 INTERSECTION, Lawrence, PA

Built 2014 Load: 34.7 t ADT: 213

SR 4018

Good

Over: SANDY RUN

PINECROFT, Blair, PA

Built 2014 Load: 34.7 t ADT: 1,583

SORBERTOWN HILL RD

Good

Over: BRANCH OF HUNLOCK CREEK

1000 FT SOUTH OF SR 4026, Luzerne, PA

Built 2014 Load: 34.7 t ADT: 500

SR 666 D ZEIS HWY

Good

Over: BOBBS CREEK

KINGSLEY TOWNSHIP, Forest, PA

Built 2014 Load: 34.7 t ADT: 139

SR 4001 NEILTOWN R

Good

Over: PITHOLE CREEK

HARMONY TOWNSHIP, Forest, PA

Built 2014 Load: 34.7 t ADT: 109

SR 449-PA 449

Good

Over: PINE CREEK

0.5 MILE N BROOKLAND, Potter, PA

Built 2015 Load: 34.7 t ADT: 383

AMES ROAD

Good

Over: DEER CREEK

1 MILE SW OF CALEDONIA PK, Clearfield, PA

Built 2015 Load: 34.7 t ADT: 10

PA 53

Good

Over: CLEARFIELD CREEK

2.1 MILE NORTH OF SR 1015, Cambria, PA

Built 2015 Load: 34.7 t ADT: 2,040

T470 NO OVERBRK RD

Good

Over: SO BR TUNKHANNOCK CREEK

LA PL TWP 100 FT SO 4005, Lackawanna, PA

Built 2015 Load: 34.7 t ADT: 327

THICKHEAD MNT. RD.

Good

Over: SINKING CREEK

POTTER TWP., Centre, PA

Built 2016 Load: 34.7 t ADT: 100

SR 4027

Good

Over: VANSCOYOC RUN

1.0 MILE SOUTH OF TR 350, Blair, PA

Built 2016 Load: 34.7 t ADT: 3,289

Lambertsville Rd

Good

Over: LAMBERTS RUN

0.3 MI S OF LAMBERTSVILLE, Somerset, PA

Built 2018 Load: 34.7 t ADT: 673

Windsor Castle Rd

Good

Over: Windsor Creek

.5 MI.SOUTH OF HAMBURG, Berks, PA

Built 2017 Load: 34.7 t ADT: 772

SR 3040 ALT 0220

Good

Over: DEWITT RUN

UNIONVILLE BORO, Centre, PA

Built 2018 Load: 34.7 t ADT: 2,381

Salem Church Road

Good

Over: Brush Run

0.3 Mi. NE of SR 0251, Beaver, PA

Built 2017 Load: 34.7 t ADT: 879

Brady Run Road

Good

Over: S. Branch Brady Run

100 NW Twp Rd 301, Beaver, PA

Built 2017 Load: 34.7 t ADT: 85

Showing 13,851-13,900 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.