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

SR15 SOUTH BOUND

Good

Over: OVER KOHLER RUN

2 MILE NORTH OF LIBERTY, Tioga, PA

Built 1997 Load: 59.9 t ADT: 4,449

OLD BRIDGETOWN PK.

Good

Over: NESHAMINY CREEK

WEST TR 413 37A08, Bucks, PA

Built 2001 Load: 59.9 t ADT: 4,040

T-310 COUNTY BR. 6

Good

Over: MUNCY CREEK

DAVIDSON .6 E OF SR 220, Sullivan, PA

Built 2000 Load: 59.9 t ADT: 50

ALLENTOWN ROAD

Good

Over: UNAMI CREEK

.7MI.SOUTH PA 663 13B03, Bucks, PA

Built 2005 Load: 59.9 t ADT: 3,442

SR 2012 WALNT RDG

Good

Over: TURNPIKE 43; MP M038.52

FALLOWFIELD TWP, Washington, PA

Built 1998 Load: 59.9 t ADT: 1,283

POWDER MILL RD

Good

Over: I-83; SR 0083

SOUTH SIDE YORK CITY, York, PA

Built 2006 Load: 59.9 t ADT: 3,251

38th STREET

Good

Over: MILL CREEK

CITY ERIE, Erie, PA

Built 2003 Load: 59.9 t ADT: 18,073

LANDENBERG ROAD

Good

Over: EAST BR. WHITE CLAY CRK

3 Mi S. of PA-41 3910-G6, Chester, PA

Built 2010 Load: 59.9 t ADT: 1,041

BAKER HILL ROAD

Good

Over: SUGAR RUN

DELAWARE TWP., Mercer, PA

Built 2010 Load: 59.9 t ADT: 226

N. Hickory St

Good

Over: Shamokin Creek

Mount Carmel Borough, Northumberland, PA

Built 2016 Load: 59.9 t ADT: 1,800

T-857

Good

Over: PLEASANT STREAM

0.4 MI SE OF MARSH HILL, Lycoming, PA

Built 2018 Load: 59.9 t ADT: 100

SEITZ ROAD

Good

Over: LANDIS RUN

N OF ADRIAN RD 3141-F3, Montgomery, PA

Built 2009 Load: 59.9 t ADT: 1,200

SR 0068

Good

Over: Buffalo Creek

CHICORA BORO, Butler, PA

Built 2020 Load: 59.9 t ADT: 6,918

TYBURN ROAD

Good

Over: NEWBOLD ROAD

1MI.SE.MORRISVILLE 39A09, Bucks, PA

Built 1954 Load: 60.3 t ADT: 11,152

SR 28 NB-SB

Good

Over: SR 8046 RAMP A

MILLVALE OVER RAMP A, Allegheny, PA

Built 1963 Load: 60.8 t ADT: 72,681

SOUTH TWELFTH ST

Good

Over: NORFOLK SOUTHERN RR

104 S 12th St Bridge, Allegheny, PA

Built 1901 Load: 60.8 t ADT: 3,000

RAMP B

Good

Over: RAMP U BRIDGE ST PINE CR

TR8-S.B.RAMP TO 28, Allegheny, PA

Built 1963 Load: 60.8 t ADT: 7,534

SR 4019

Good

Over: GAP RUN

IMLER, Bedford, PA

Built 1940 Load: 60.8 t ADT: 449

SR 1040

Good

Over: BR PRINCE HOLLOW RUN

1 MILE S.OF CADIS, Bradford, PA

Built 1996 Load: 60.8 t ADT: 290

EXTON BYPASS(WB)

Good

Over: WHITFORD ROAD

WHITFORD RD/SR6030 21F13, Chester, PA

Built 1995 Load: 60.8 t ADT: 29,961

SR 1019

Good

Over: TRIB EAST BR BRIAR CREEK

3 MI NW OF BERWICK, Columbia, PA

Built 1987 Load: 60.8 t ADT: 1,704

581West Bound

Good

Over: CONODOGUINET CREEK

1.1MILES NORTH OF US11, Cumberland, PA

Built 1995 Load: 60.8 t ADT: 31,074

T-457

Good

Over: PA TPK (I-76)

WEST PENNSBORO TWP, Cumberland, PA

Built 1939 Load: 60.8 t ADT: 200

T-443 JONES RD

Good

Over: DELAWARE CREEK

100 FT. WEST OF SR 333, Juniata, PA

Built 1959 Load: 60.8 t ADT: 150

SR 44

Good

Over: LOWER PINE BOTTOM RUN

1 MILE N OF WATERVILLE, Lycoming, PA

Built 1979 Load: 60.8 t ADT: 1,422

BRIDGE 1218 T-703

Good

Over: OVER SMALL CREEK

VOGAN RD. MILL CREEK TWP., Mercer, PA

Built 1987 Load: 60.8 t ADT: 41

PA 309 BY-PASS

Good

Over: CAMP HILL ROAD

FORT WASHINGTON 3257-H10, Montgomery, PA

Built 1958 Load: 60.8 t ADT: 58,495

BOWERS MILL ROAD

Good

Over: WEST BRANCH PERKIOMEN CR

1.2 Mi W PA-663 2804-E10, Montgomery, PA

Built 2001 Load: 60.8 t ADT: 500

SR 1002

Good

Over: EAST BR. CHILLISQUAQUE C

.75 MI NE STRAWBERRY RIDG, Montour, PA

Built 1995 Load: 60.8 t ADT: 240

SR-1029

Good

Over: LIMESTONE RUN

3 MI E OF MILTON, Northumberland, PA

Built 1950 Load: 60.8 t ADT: 151

DRY RUN ROAD

Good

Over: DRY RUN

2 MI EAST OF SR 87, Sullivan, PA

Built 1996 Load: 60.8 t ADT: 30

SR 0171 TR 171

Good

Over: EAST BRANCH LACKAWANNA R

CLIFFORD TWP 1 M S SR2040, Susquehanna, PA

Built 1958 Load: 60.8 t ADT: 1,632

SR 3015 FINN SWAMP

Good

Over: PURDY CREEK

PAUPACK TWP .5M S SR 2002, Wayne, PA

Built 1988 Load: 60.8 t ADT: 537

SR 144-PA 144

Good

Over: STONY RUN

1 MILE NORTH RENOVO, Clinton, PA

Built 1998 Load: 60.8 t ADT: 782

SR 4021 JAMESTOWN

Good

Over: OVER BRANDS RUN

SUGAR GROVE BOROUGH, Warren, PA

Built 1999 Load: 60.8 t ADT: 1,998

SR 3027

Good

Over: TROUT RUN

OSCEOLA MILLS, Centre, PA

Built 2000 Load: 60.8 t ADT: 201

SR 322-US 322

Good

Over: SR 3005

3 MI N STATE COLLEGE, Centre, PA

Built 2001 Load: 60.8 t ADT: 16,842

CREEK ROAD

Good

Over: HARVEYS RUN

.5MI S.CHADDS FORD 40C01, Delaware, PA

Built 2002 Load: 60.8 t ADT: 1,903

S.R 8041 CONNECTOR

Good

Over: RAMP N TO MON WHARF

EASTBOUND CONNECTOR RAMP, Allegheny, PA

Built 1940 Load: 60.8 t ADT: 3,074

SR 22-US 22

Good

Over: SR 1005 ELECTRIC AVENUE

1 MILE NORTH OF LEWISTOWN, Mifflin, PA

Built 2002 Load: 60.8 t ADT: 11,177

PA TPK (TOLL 43)

Good

Over: SR 3017

2.5MI.N. OF FINLEYVILLE I, Allegheny, PA

Built 2002 Load: 60.8 t ADT: 3,777

T-447 MCGREGOR RD

Good

Over: LITTLE PINEY CREEK

0.1 mi W int. w/ SR 66, Clarion, PA

Built 2004 Load: 60.8 t ADT: 50

SR 6 PERRY HWY.

Good

Over: OVER FRENCH CREEK

LEBOUEF TOWNSHIP, Erie, PA

Built 2006 Load: 60.8 t ADT: 2,692

BRANDYWINE CK.ROAD

Good

Over: GREEN VALLEY CREEK

NEAR LR 15072 38J01, Chester, PA

Built 2007 Load: 60.8 t ADT: 191

THORNTON ROAD

Good

Over: BRANCH CHESTER CREEK

THORNBURY TOWNSHIP 41K3, Chester, PA

Built 2007 Load: 60.8 t ADT: 2,208

SOUTH FRANKLIN ST.

Good

Over: SOLOMON CREEK

ADJACENT TO BROOK STREET, Luzerne, PA

Built 2006 Load: 60.8 t ADT: 300

SR 0191 TR 191

Good

Over: MILL CREEK

DRHER TWP .2M S OF TR 507, Wayne, PA

Built 2007 Load: 60.8 t ADT: 2,314

SR 3014

Good

Over: WILLOW RUN

1 MI N MCCULLOCHS MILLS, Juniata, PA

Built 2009 Load: 60.8 t ADT: 158

PA TPK (I-76)

Good

Over: SR 0015 LR123 (US 15)

UPPER ALLEN TWP, Cumberland, PA

Built 2007 Load: 60.8 t ADT: 27,740

PA TPK (I-76)

Good

Over: SR 0015 LR123 (US 15)

UPPER ALLEN TWP, Cumberland, PA

Built 2007 Load: 60.8 t ADT: 5,440

Showing 19,801-19,850 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.