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

SR 2025

Good

Over: GARRETTS RUN

.3 mi. E SR 2010 Inter., Armstrong, PA

Built 2011 Load: 36.3 t ADT: 629

SR 2023

Good

Over: Sandy Lick Creek

300ft SW SR 322 Intersect, Jefferson, PA

Built 2011 Load: 36.3 t ADT: 902

SR 3089

Good

Over: Buffalo Run

0.4 mi N from SR 0031, Westmoreland, PA

Built 2011 Load: 36.3 t ADT: 1,690

SR 2019; TWP RD

Good

Over: S Fork Beaver Creek

New Providence, Lancaster, PA

Built 2012 Load: 36.3 t ADT: 1,969

COLD SPRINGS DRIVE

Good

Over: TRIB. TO CHESTER CREEK

0.6 Mi. E US-202 3583-J8, Chester, PA

Built 2008 Load: 36.3 t ADT: 100

TWP-540

Good

Over: PA TPK (I-76)

West of Valley Forge Park, Chester, PA

Built 2011 Load: 36.3 t ADT: 200

SR 1005

Good

Over: BUCKS RUN

BURNHAM BORO, Mifflin, PA

Built 2012 Load: 36.3 t ADT: 8,341

SR 0218

Good

Over: Tenmile Crk RR 2 Roads

0.3 mi S from SR 0019, Greene, PA

Built 2012 Load: 36.3 t ADT: 3,636

SR 0210

Good

Over: LITTLE MAHONING CREEK

2.4 mi. S SR 954 Intersec, Indiana, PA

Built 2012 Load: 36.3 t ADT: 1,446

PA 181; SR 0181

Good

Over: TRIB TO CODORUS CREEK

INTER LR 250 AND LR 66021, York, PA

Built 2012 Load: 36.3 t ADT: 14,515

SR 0224

Good

Over: NORFOLK SOUTHERN

EDINBURG, Lawrence, PA

Built 2012 Load: 36.3 t ADT: 8,668

SR 3010

Good

Over: POPLAR RUN

2.5 MI W OF PUZZLETOWN, Blair, PA

Built 2012 Load: 36.3 t ADT: 56

SR 973

Good

Over: LOYALSOCK CREEK

VILLAGE OF LOYALSOCKVILLE, Lycoming, PA

Built 2012 Load: 36.3 t ADT: 1,012

PA TPK (I-76)

Good

Over: Mt. Rock Spring Creek

West Pennsboro Twp., Cumberland, PA

Built 2012 Load: 36.3 t ADT: 21,474

T-532

Good

Over: TWO MILE RUN

SHEFFIELD TWP, Warren, PA

Built 2012 Load: 36.3 t ADT: 605

SR 1026(LR 664)

Good

Over: PINE CREEK

BROWNS BRIDGE, Berks, PA

Built 2013 Load: 36.3 t ADT: 508

SR 2002

Good

Over: MILL CREEK

2 MILE SE OF YORK CITY, York, PA

Built 2013 Load: 36.3 t ADT: 5,705

SR 1026

Good

Over: WILLIAMS CREEK

0.2 MILES WEST OF NEATH, Bradford, PA

Built 2013 Load: 36.3 t ADT: 136

T-390 Ridge Road

Good

Over: Hares Valley Creek

Barneytown, Huntingdon, PA

Built 2013 Load: 36.3 t ADT: 100

SR 8011

Good

Over: SR 0070 2002 2 Ramps

I-79/I-70 Interchange, Washington, PA

Built 2013 Load: 36.3 t ADT: 16,105

PA 895 (LR466)

Good

Over: SCHUYLKILL RIVER

0.25MI.E.OF AUBURN BORO, Schuylkill, PA

Built 2013 Load: 36.3 t ADT: 3,666

DUKES ROAD T-758

Good

Over: EQUINUNK CREEK

90 FT E. OF PINE MILL RD, Wayne, PA

Built 2013 Load: 36.3 t ADT: 153

SR 173 LIBERTY ST

Good

Over: SWAMP RUN

PINE TWP, Mercer, PA

Built 2014 Load: 36.3 t ADT: 4,168

SR 1011

Good

Over: MIX CREEK

2 MI NW ELDRED, McKean, PA

Built 2014 Load: 36.3 t ADT: 1,916

MAIN STREET

Good

Over: WAMPUM CREEK

NEAR SR 18, Lawrence, PA

Built 2014 Load: 36.3 t ADT: 1,065

SR 4010

Good

Over: SLIPPERY ROCK CREEK

1.8 Mi W SR 38 Intersec., Butler, PA

Built 2014 Load: 36.3 t ADT: 264

FRETZ ROAD

Good

Over: I-476 (PA TPK. NE EXT.)

N. LANSDALE INTC. 3031C07, Montgomery, PA

Built 2013 Load: 36.3 t ADT: 6,339

SR 770-PA 770

Good

Over: MINARD RUN

2 MI NW AIKEN, McKean, PA

Built 2014 Load: 36.3 t ADT: 2,035

SR 4038

Good

Over: N BR.OF BERMUDIAN CREEK

.3 MI EAST OF US15, York, PA

Built 2014 Load: 36.3 t ADT: 143

SR 8017 (RAMP M)

Good

Over: T-906 HADDOCK ROAD

I-81 TO 309 RAMP (M), Schuylkill, PA

Built 2014 Load: 36.3 t ADT: 10,500

PA 309 (LR 226)

Good

Over: LIZARD CREEK

SNYDERS, Schuylkill, PA

Built 2014 Load: 36.3 t ADT: 8,246

MOUNTAIN ROAD

Good

Over: BLACK CREEK

700 FT N OF CEDARHEAD RD, Luzerne, PA

Built 2014 Load: 36.3 t ADT: 100

SERVICE ROAD

Good

Over: POTTER RUN

0.2 MI W OF OLD RTE 322, Centre, PA

Built 2014 Load: 36.3 t ADT: 10

ON TSR 301

Good

Over: STERLING RUN

1 MI NW STERLING RUN, Cameron, PA

Built 2014 Load: 36.3 t ADT: 108

T-357 PRATT HOLLOW

Good

Over: KENDALL CREEK

500 FT EAST OF SR 46, McKean, PA

Built 2014 Load: 36.3 t ADT: 90

SR 4016

Good

Over: SOUTH FORK BENS CREEK

1 MI N OF THOMAS MILLS, Somerset, PA

Built 2015 Load: 36.3 t ADT: 963

Carrie Furnace Con

Good

Over: CSX RR

FO05 Carrie Furnace Conn., Allegheny, PA

Built 2015 Load: 36.3 t ADT: 2,000

SR 4002

Good

Over: Trib to ALLEGHENY RIVER

0.2 Mi E SR 4001 Inter., Armstrong, PA

Built 2015 Load: 36.3 t ADT: 612

PA 928

Good

Over: BIG COVE CREEK

0.6 MILE SOUTH OF TR 522, Fulton, PA

Built 2015 Load: 36.3 t ADT: 328

Woodtown Rd

Good

Over: TWIN LAKES CREEK

SHOHOLA TWP 1.4M N SR1005, Pike, PA

Built 2015 Load: 36.3 t ADT: 112

Rimrock Drive

Good

Over: POCONO CREEK

RIMROCK DRIVE, Monroe, PA

Built 2015 Load: 36.3 t ADT: 2,647

American Parkway

Good

Over: Lehigh River/SR 1007/RR

0.25mi NE Fullerton Ave, Lehigh, PA

Built 2015 Load: 36.3 t ADT: 5,000

SR 4033

Good

Over: LITTLE CHIQUES CREEK

4 MI. N. OF MT. JOY, Lancaster, PA

Built 2015 Load: 36.3 t ADT: 1,127

SR 2017

Good

Over: MANADA CREEK

.5 MI.W. OF SHELLSVILLE, Dauphin, PA

Built 2015 Load: 36.3 t ADT: 689

PA TPK (I-476)

Good

Over: T-379 (Berks Rd)

West of North Wales, Montgomery, PA

Built 2016 Load: 36.3 t ADT: 65,329

BREAKER RD (T-860)

Good

Over: SOLOMON CREEK

1000 FT NE OF SR 2002, Luzerne, PA

Built 2014 Load: 36.3 t ADT: 200

POTTSTOWN BY-PASS

Good

Over: SCHUYLKILL RIVER

2 MI. E. PA100 3138K03, Montgomery, PA

Built 2016 Load: 36.3 t ADT: 55,039

SR 0029 TR 29

Good

Over: BOWMANS CREEK

EATON TWP .8 M S SR 2007, Wyoming, PA

Built 2016 Load: 36.3 t ADT: 7,477

PA 272; SR 0272

Good

Over: Cocalico Creek

S.END OF EPHRATA BORO, Lancaster, PA

Built 2016 Load: 36.3 t ADT: 15,937

SR 254

Good

Over: OVER MUD CREEK

3 MI E OF WASHINGTONVILLE, Montour, PA

Built 2016 Load: 36.3 t ADT: 1,315

Showing 14,551-14,600 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.