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

Stoughton Road

Good

Over: Slippery Rock Creek

15, Lawrence, PA

Built 2008 Load: 45.0 t ADT: 200

SR 0018

Good

Over: Browns Creek

0.1 mi S from SR 0021, Greene, PA

Built 2012 Load: 45.0 t ADT: 7,318

TAYLOR ROAD (T-535

Good

Over: HOTTENBAUGH RUN

.1 MI S OF EASTBROOK, Lawrence, PA

Built 2012 Load: 45.0 t ADT: 20

Eckman Road

Good

Over: Mill Creek

1500 FT SW OF US 222, Lancaster, PA

Built 2014 Load: 45.0 t ADT: 900

SR2005IRISHTOWN RD

Good

Over: OVER B.&L.E. R.R.

PINE TOWNSHIP, Mercer, PA

Built 2015 Load: 45.0 t ADT: 1,800

SR 549

Good

Over: OVER ELK RUN

4 MI NE OF MANSFIELD, Tioga, PA

Built 2016 Load: 45.0 t ADT: 1,885

GEORGETOWN RD

Good

Over: MILL CREEK

GREENE TWP.-MILL CREEK, Beaver, PA

Built 2016 Load: 45.0 t ADT: 761

East Branch Road

Good

Over: E BR STANDING STONE CRK

1.8 MI EAST OF PA 26, Huntingdon, PA

Built 2017 Load: 45.0 t ADT: 280

COLEMAN RD

Good

Over: CSX RAILROAD

2 MI SE OF HUNTERSTOWN, Adams, PA

Built 2019 Load: 45.0 t ADT: 1,400

GRD ARMY OF RP HW

Good

Over: Marvin Creek

HAZELHURST, McKean, PA

Built 2017 Load: 45.0 t ADT: 1,717

HAYDEN BLVD (SR51)

Good

Over: FALLEN TIMBER RUN

@ INTER.W/WEIGLE HILL RD., Allegheny, PA

Built 2018 Load: 45.0 t ADT: 18,567

Linn Street PA 144

Good

Over: UNT TO SPRING CREEK

BELLEFONTE, Centre, PA

Built 2017 Load: 45.0 t ADT: 7,256

SR 0081 1-81 NB

Good

Over: SR 0315 TR 315

JENKIS TWP OVER TR 315, Luzerne, PA

Built 2017 Load: 45.0 t ADT: 28,298

SR 4033

Good

Over: Lyons Run

PENN TOWNSHIP, Westmoreland, PA

Built 2018 Load: 45.0 t ADT: 2,774

PLEASANT VIEW ROAD

Good

Over: POTTSTOWN EXPRESSWAY

SANATOGA 12C11 / 3139E02, Montgomery, PA

Built 2021 Load: 45.0 t ADT: 1,597

SR 3030

Good

Over: SR 0030

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 2023 Load: 45.0 t ADT: 6,439

US 15 NB; SR 0015

Good

Over: MARSH CREEK

2 MI N OF MARYLAND LINE, Adams, PA

Built 1990 Load: 45.4 t ADT: 9,529

SR 3006; BARLOW RD

Good

Over: US 15 NB; SR 0015

SOUTH OF GETTYSBURG, Adams, PA

Built 1990 Load: 45.4 t ADT: 587

KOHLER MILL ROAD

Good

Over: TRIB.CONEWAGO CREEK

.5SW N.OXF/TRIB CONEWAGO, Adams, PA

Built 1996 Load: 45.4 t ADT: 400

PARKWAY WEST

Good

Over: CAMPBELLS RUN ROAD

1000 EAST OF SR 0079, Allegheny, PA

Built 1973 Load: 45.4 t ADT: 79,056

BUTLER LOGAN RD

Good

Over: OVER 28 NB SB

50 NORTH OF SR 1014, Allegheny, PA

Built 1974 Load: 45.4 t ADT: 1,875

ROSS ST

Good

Over: WYLIE RUN

1700 FT EAST OF SR 2001, Allegheny, PA

Built 1989 Load: 45.4 t ADT: 4

HOPE HOLLOW RD

Good

Over: GEORGES RUN

GR01 GEORGES RUN NO. 1, Allegheny, PA

Built 1930 Load: 45.4 t ADT: 10,819

RAMP S

Good

Over: MCKNIGHT/EVERGREEN RD

HOV MCKNIGHT INTERCHANGE, Allegheny, PA

Built 1986 Load: 45.4 t ADT: 174

T-717 POST OFFICE

Good

Over: NORTH BRANCH PLUM CREEK

400ft SE of SR210, Armstrong, PA

Built 1993 Load: 45.4 t ADT: 75

T-554 BURNS HILL

Good

Over: PATTERSON CREEK

330 W of Pump Station Rd, Armstrong, PA

Built 1910 Load: 45.4 t ADT: 50

PA 26

Good

Over: PINEY CREEK

.6 MI.N.SR2003 INGLESMITH, Bedford, PA

Built 1938 Load: 45.4 t ADT: 371

PA 96

Good

Over: LITTLE WILLS CREEK

BARD, Bedford, PA

Built 1997 Load: 45.4 t ADT: 1,847

SR 1001

Good

Over: DUNNING CREEK OVERFLOW

1 MI.E.OF BEDFORD, Bedford, PA

Built 1940 Load: 45.4 t ADT: 572

SR 4019

Good

Over: BOBS CREEK

2.68 MILES S. FROM PA 869, Bedford, PA

Built 1937 Load: 45.4 t ADT: 867

SR 3029(LR 06148)

Good

Over: NORFOLK SOUTHERN RR

FURNACE ROAD, Berks, PA

Built 1994 Load: 45.4 t ADT: 1,620

DENNIS DRIVE

Good

Over: NORFOLK SO. LINE 0322HBG

0.8 MI. SE OF LORANE, Berks, PA

Built 1996 Load: 45.4 t ADT: 500

I-99 / US 220 NBL

Good

Over: PA 865/SR 1008 @ EXIT 41

0.3 MI. E. OF BELLWOOD, Blair, PA

Built 1992 Load: 45.4 t ADT: 10,584

I-99 / US 220 SBL

Good

Over: PA 865 @ EXIT 41

0.3MI.E.OF BELLWOOD, Blair, PA

Built 1992 Load: 45.4 t ADT: 10,064

SR 4013

Good

Over: WEST BRANCH TOMJACK CRK

0.25 MI. NORTHOF BOURNE, Bradford, PA

Built 1953 Load: 45.4 t ADT: 1,187

SR 4022

Good

Over: STONE LICK CREEK

1 MI NW OF WILAWANA, Bradford, PA

Built 1961 Load: 45.4 t ADT: 898

T-596 GLEN ROAD

Good

Over: POND HILL RUN

0.2 MI WEST OF T-618, Bradford, PA

Built 1994 Load: 45.4 t ADT: 50

CONSTITUTION AVE.

Good

Over: PLEASANT SPRING CREEK

IN PERKASIE 20G02, Bucks, PA

Built 1999 Load: 45.4 t ADT: 5,055

SR0038

Good

Over: PINE RUN

SW OF BOYDSTOWN, Butler, PA

Built 1929 Load: 45.4 t ADT: 5,411

SR 1002

Good

Over: US 0219

3 MI.N.OF EBENSBURG, Cambria, PA

Built 1990 Load: 45.4 t ADT: 140

T-326 KRAYN ROAD

Good

Over: Norfolk Southern RR

1.MI.SW.OF SALIX, Cambria, PA

Built 1993 Load: 45.4 t ADT: 200

T498 Iron Bridge R

Good

Over: N BRANCH BLACKLICK CREEK

3 MI.N.OF BELSANO, Cambria, PA

Built 1999 Load: 45.4 t ADT: 464

SR 120-PA 120

Good

Over: DRIFTWOOD BRANCH SNNMHNN

CAMERON, Cameron, PA

Built 1996 Load: 45.4 t ADT: 489

SR 80-I 80

Good

Over: FORESTRY RD;BLACK MOSH C

6 MI W EXIT 147, Centre, PA

Built 1967 Load: 45.4 t ADT: 7,860

SR 3008

Good

Over: BUFFALO RUN

FILLMORE, Centre, PA

Built 1993 Load: 45.4 t ADT: 378

EXTON BYPASS(EB)

Good

Over: CLOVER MILL ROAD

CLOVER BUS PARK 31D01, Chester, PA

Built 1995 Load: 45.4 t ADT: 26,791

ROUTE 202 (SB)

Good

Over: AMTRAK;RAMP EB;DUNWOODY

SOUTH OF RT 30 22D11, Chester, PA

Built 1969 Load: 45.4 t ADT: 25,031

WESTBOURNE ROAD

Good

Over: CHESTER CREEK

WESTTOWN SCHOOL 41J2, Chester, PA

Built 2000 Load: 45.4 t ADT: 2,346

STATE ROAD

Good

Over: MIDDLE BR.WHITE CLAY CR.

NR.WEST GROVE 45F10, Chester, PA

Built 1992 Load: 45.4 t ADT: 1,502

SR 80-I 80

Good

Over: TWP RD 354

1 MI W EXIT 178, Clinton, PA

Built 1969 Load: 45.4 t ADT: 9,285

Showing 17,851-17,900 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.