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

T575 COLD SPRNG RD

Good

Over: SIX MILE RUN

COALDALE, Bedford, PA

Built 1937 Load: 49.9 t ADT: 88

T325 Walnut Street

Good

Over: FRANK.BR.JUNIATA RIVER

CLAYSBURG, Blair, PA

Built 1994 Load: 49.9 t ADT: 205

SR 706

Good

Over: TRIB WYALUSING CREEK

2 MILE SOUTH OF CAMPTOWN, Bradford, PA

Built 1961 Load: 49.9 t ADT: 2,200

SR 1021

Good

Over: RUMMERFIELD CREEK

1 MI. NE OF RUMMERFIELD, Bradford, PA

Built 1961 Load: 49.9 t ADT: 229

SR 1049

Good

Over: WAPPASENING CREEK

3 MI W OF WARREN CENTER, Bradford, PA

Built 1996 Load: 49.9 t ADT: 739

HOLICONG ROAD

Good

Over: LAHASKA CREEK

Buckingham 2924-D7, Bucks, PA

Built 1980 Load: 49.9 t ADT: 250

T434 Blueberry Rd

Good

Over: LITTLE CONEMAUGH RIVER

1 MI.N.OF LILLY, Cambria, PA

Built 1999 Load: 49.9 t ADT: 311

MAGEE AVENUE

Good

Over: LITTLE CHEST CREEK

PATTON MAGEE AVE BR.NO.1, Cambria, PA

Built 1946 Load: 49.9 t ADT: 513

T-353

Good

Over: LICK ISLAND RUN

1200 FT NW OF PA 872, Cameron, PA

Built 1945 Load: 49.9 t ADT: 20

SR 2011

Good

Over: ELK CREEK

MILLHEIM, Centre, PA

Built 1989 Load: 49.9 t ADT: 934

SR 4007

Good

Over: LITTLE ANDERSON CREEK

2 MI SOUTH OF ROCKTON, Clearfield, PA

Built 1991 Load: 49.9 t ADT: 130

SR 80-I 80

Good

Over: T-339

2 MI W EXIT 173, Clinton, PA

Built 1969 Load: 49.9 t ADT: 11,912

T-724 CTY BR#165

Good

Over: WEST BRANCH BRIAR CREEK

1.4 MI. NW OF BRIAR CRK, Columbia, PA

Built 1990 Load: 49.9 t ADT: 320

SR 77 STATE STREET

Good

Over: OVER BLOOMFIELD RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1984 Load: 49.9 t ADT: 1,372

SR 4008 FISHER RD.

Good

Over: OVER CONNEAUT CREEK E BR

BEAVER TOWNSHIP, Crawford, PA

Built 1993 Load: 49.9 t ADT: 357

PA 34; SR 0034

Good

Over: WERTZ RUN

1.25 MI.S. CARLISLE SPRGS, Cumberland, PA

Built 1988 Load: 49.9 t ADT: 6,350

SPRING MILL ROAD

Good

Over: AMTRAK(MAIN LINE);ACCESS

VILLANOVA STATION 14K09, Delaware, PA

Built 1993 Load: 49.9 t ADT: 7,285

MID-COUNTY EXWY.

Good

Over: WETLANDS / 3477-B6

N.CONESTOGA RD. 14G11, Delaware, PA

Built 1989 Load: 49.9 t ADT: 89,897

UPLAND ROAD

Good

Over: CHESTER CREEK

.2MI.NORTH I-95 35-A1, Delaware, PA

Built 1967 Load: 49.9 t ADT: 236

SR 0040

Good

Over: SR 2025

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 49.9 t ADT: 5,526

SR 0043

Good

Over: SR 3015

GEORGES TOWNSHIP, Fayette, PA

Built 1992 Load: 49.9 t ADT: 7,807

PA 475 (LR 192)

Good

Over: PTC B-413 MP 177.72

WEST OF FT LITTLETON INTG, Fulton, PA

Built 1995 Load: 49.9 t ADT: 3,312

SR 4013

Good

Over: BRACE RUN

MORRIS TOWNSHIP, Greene, PA

Built 1985 Load: 49.9 t ADT: 141

T504 MILL CRK HOLL

Good

Over: MILL CREEK

1.6 MILE NORTH OF PA 655, Huntingdon, PA

Built 1938 Load: 49.9 t ADT: 135

T312 PLEASANT HILL

Good

Over: TRIB TO NB L AUGHWICK CR

1.5 MI.N.OF DECORUM, Huntingdon, PA

Built 1937 Load: 49.9 t ADT: 143

STONE CREEK ROAD

Good

Over: DETWEILER RUN

1 MILE NE OF SR 1023, Huntingdon, PA

Built 2002 Load: 49.9 t ADT: 60

MONROE STREET

Good

Over: LACKAWANNA RIVER

ARCH BORO .1M E MAIN ST., Lackawanna, PA

Built 1993 Load: 49.9 t ADT: 350

SR 4033

Good

Over: BRUBAKER RUN

2.5 MI.S. MASTERSONVILLE, Lancaster, PA

Built 1938 Load: 49.9 t ADT: 1,127

PA TPK (I-376)

Good

Over: T-359

NORTH BEAVER TWP, Lawrence, PA

Built 1992 Load: 49.9 t ADT: 9,871

N CORNWALL ROAD

Good

Over: SNITZ CREEK

CORNWALL BORO/SNITZ CRK., Lebanon, PA

Built 1993 Load: 49.9 t ADT: 100

SR 0287

Good

Over: SECOND FORK

0.25 MI N OF SALLADASBURG, Lycoming, PA

Built 1985 Load: 49.9 t ADT: 1,234

BRIDGE 2631 T-724

Good

Over: OVER PINE RUN

CRIBBS ROAD FINDLEY TWP, Mercer, PA

Built 1994 Load: 49.9 t ADT: 61

NORTH WALES ROAD

Good

Over: WISSAHICKON CREEK

UPPER GWYNEDD 22H6/3144D9, Montgomery, PA

Built 1989 Load: 49.9 t ADT: 7,591

RIDGE PIKE

Good

Over: SANATOGA CREEK

SANATOGA 3139G01, Montgomery, PA

Built 1914 Load: 49.9 t ADT: 16,660

SR 4017

Good

Over: OSWAYO CREEK

SHINGLEHOUSE, Potter, PA

Built 1995 Load: 49.9 t ADT: 234

SPRING T-572

Good

Over: TRIB.TO MIDDLE CR.

VILLAGE OF MIDDLE CREEK, Snyder, PA

Built 1989 Load: 49.9 t ADT: 200

SR 1015

Good

Over: STARRUCCA CREEK

LANESBORO BO 81 N SR1009, Susquehanna, PA

Built 1985 Load: 49.9 t ADT: 1,280

PA 414

Good

Over: PINE CREEK

VILLAGE OF BLACKWELL, Tioga, PA

Built 1993 Load: 49.9 t ADT: 277

SR 4012

Good

Over: OVER HORNBY HOLLOW CREEK

1.25 MI W OF LITTLE MARSH, Tioga, PA

Built 1956 Load: 49.9 t ADT: 256

SR 0015

Good

Over: SR 1001

0.5 MI. NW OF MANSFIELD, Tioga, PA

Built 1986 Load: 49.9 t ADT: 4,678

SR 8016

Good

Over: SR 0070 & SR 8016

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1996 Load: 49.9 t ADT: 10,848

PA TPK (PA-66)

Good

Over: SR 6066

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1993 Load: 49.9 t ADT: 10,429

PA TPK (PA-66)

Good

Over: SR 6066

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1993 Load: 49.9 t ADT: 10,429

T-987 BROOKDALE DR

Good

Over: SLATE CREEK

190 SOUTH OF SR 2013, Westmoreland, PA

Built 1976 Load: 49.9 t ADT: 630

SHADY DELL ROAD

Good

Over: PARADISE CREEK

350 SOUTH OF SR 234, York, PA

Built 1991 Load: 49.9 t ADT: 300

ADAMS AVENUE

Good

Over: TACONY CREEK

WEST TRAIN STATION3481B04, Philadelphia, PA

Built 1901 Load: 49.9 t ADT: 20,406

RAMP SV;RAMP S3

Good

Over: SECOND STREET

I-95 AT VINE STR. 3590H07, Philadelphia, PA

Built 1989 Load: 49.9 t ADT: 39,774

SR 0006 TR 6 EB

Good

Over: SR 1012 SALEM ROAD

ARCHBALD BORO OVER SR1012, Lackawanna, PA

Built 1997 Load: 49.9 t ADT: 8,842

SR 46-PA 46

Good

Over: EAST POTATO CREEK

1 MI SE BETULA, McKean, PA

Built 1997 Load: 49.9 t ADT: 500

SR 144-PA 144

Good

Over: SINKING CREEK

CENTRE HILL, Centre, PA

Built 1997 Load: 49.9 t ADT: 3,831

Showing 18,851-18,900 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.