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 0015 SB

Good

Over: 3RD ST & SEDA-COG RR

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 35.4 t ADT: 14,984

BRIDGE 504 T-889

Good

Over: OVER BLACK RUN

SUNOL RD.DEER CREEK TWP., Mercer, PA

Built 1982 Load: 35.4 t ADT: 61

BRIDGE ROAD

Good

Over: PERKIOMEN CK BACKCHANNEL

RAHNS 20E4/3141J7, Montgomery, PA

Built 1992 Load: 35.4 t ADT: 10,262

SR 2012 (LR 48010)

Good

Over: SR 78(LR 1045)

APPLEBUTTER RD. OVER I-78, Northampton, PA

Built 1987 Load: 35.4 t ADT: 1,228

PA 985

Good

Over: ROARING RUN

1.5 MI.N.OF JENNERSTOWN, Somerset, PA

Built 1997 Load: 35.4 t ADT: 1,710

SR 49

Good

Over: OVER CUMMINGS CREEK

2 MI SE OF NELSON, Tioga, PA

Built 1980 Load: 35.4 t ADT: 4,020

SR 3009

Good

Over: OVER RAPID RUN

1 MI NW OF COWAN, Union, PA

Built 1973 Load: 35.4 t ADT: 87

SR 3007 COBHAM STA

Good

Over: OVER BROKENSTRAW CREEK

PITTSFIELD TOWNSHIP, Warren, PA

Built 1988 Load: 35.4 t ADT: 727

SR2025

Good

Over: GARRETTS RUN

GARRETTS RUN NO 5, Armstrong, PA

Built 2000 Load: 35.4 t ADT: 549

T-453 DEER RUN RD

Good

Over: OVER PATCHEN RUN

SUGAR GROVE TOWNSHIP, Warren, PA

Built 2000 Load: 35.4 t ADT: 100

PA 33

Good

Over: RIVER CANAL NORF/SOUTH R

GENE HARTZELL BRIDGE, Northampton, PA

Built 2001 Load: 35.4 t ADT: 46,590

PA.741 ; SR 0741

Good

Over: U.S.30 ; SR 0030

PA 741 OVER U.S.30, Lancaster, PA

Built 2002 Load: 35.4 t ADT: 19,296

SR 4020 HBG.PK.

Good

Over: US 30 SR 0030

WEST OF LONGS PARK, Lancaster, PA

Built 2002 Load: 35.4 t ADT: 17,980

SR 8023

Good

Over: SR 3007

1 MI N OF STATE COLLEGE, Centre, PA

Built 2001 Load: 35.4 t ADT: 980

SR 8014

Good

Over: SR 3023

0.5 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2002 Load: 35.4 t ADT: 2,907

SR 6 GRAND ARMY HY

Good

Over: OVER LITTLE BROKENSTRAW

PITTSFIELD TOWNSHIP, Warren, PA

Built 2003 Load: 35.4 t ADT: 3,275

SR 99 I-99

Good

Over: SR 3042

1 MILE NORTH PORT MATILDA, Centre, PA

Built 2003 Load: 35.4 t ADT: 7,082

SR 14

Good

Over: WEST BRANCH SUGAR CREEK

TROY BORO, Bradford, PA

Built 2004 Load: 35.4 t ADT: 5,990

SCHOOLHOUSE RD

Good

Over: LITTLE CONESTOGA CREEK

1/2 MILE SOUTH OF SR 462, Lancaster, PA

Built 2003 Load: 35.4 t ADT: 6,300

SR 3002 CHERRY HIL

Good

Over: OVER CONNEAUT CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 2005 Load: 35.4 t ADT: 261

MYERS DRIVE

Good

Over: PUCKETA CREEK

250NORTH OF SR 0366, Allegheny, PA

Built 2005 Load: 35.4 t ADT: 1,407

SR 80-I 80 WB

Good

Over: SEDA-COGN & B E/SR 150

EXIT 158 MILESBURG INTER., Centre, PA

Built 2005 Load: 35.4 t ADT: 11,358

SR 1020

Good

Over: WEST BRANCH PINE CREEK

GALETON BORO, Potter, PA

Built 2005 Load: 35.4 t ADT: 1,249

MERRITTSTOWN ROAD

Good

Over: DUNLAP CREEK

NEAR MERRITTSTOWN, Fayette, PA

Built 2004 Load: 35.4 t ADT: 672

SR 219-US 219

Good

Over: FORMAN ST & TUNUNGWANT C

CITY OF BRADFORD, McKean, PA

Built 2006 Load: 35.4 t ADT: 3,482

SR 2014

Good

Over: COAL RUN

2 MI WEST OSCEOLA MILLS, Clearfield, PA

Built 2006 Load: 35.4 t ADT: 455

SR 2025

Good

Over: GARRETTS RUN

GARRETTS RUN NO.3, Armstrong, PA

Built 2006 Load: 35.4 t ADT: 549

S.R. 2026

Good

Over: MESHOPPEN CREEK

546 EAST OF S.R. 2053, Susquehanna, PA

Built 2007 Load: 35.4 t ADT: 17

SR 0191 TR 191

Good

Over: SHEHAWKEN CREEK

BUCKINGHAM TWP INT TR 370, Wayne, PA

Built 2007 Load: 35.4 t ADT: 1,556

SR 0690

Good

Over: VAN BRUNDT CREEK

MOSCOW BORO.1M E SR 2005, Lackawanna, PA

Built 2008 Load: 35.4 t ADT: 2,534

T-763 (POTTER RD.)

Good

Over: SNAKE CREEK

4 MILES NORTH OF MONTROSE, Susquehanna, PA

Built 2008 Load: 35.4 t ADT: 75

SR 6 - US 6

Good

Over: ALLEGHENY RIVER

COUDERSPORT, Potter, PA

Built 2008 Load: 35.4 t ADT: 6,095

PA 160

Good

Over: ROARING FORK

4 M. S. OF WINDBER, Somerset, PA

Built 2008 Load: 35.4 t ADT: 3,302

SR 36

Good

Over: BEAR RUN

MCGEES MILLS, Clearfield, PA

Built 2008 Load: 35.4 t ADT: 1,700

PA TPK (I-576)

Good

Over: MCCASLIN RUN ENLOW RUN

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 35.4 t ADT: 2,025

GAY STREET

Good

Over: FRENCH CREEK LOCAL ROADS

PHOENIXVILLE 3252G9, Chester, PA

Built 2009 Load: 35.4 t ADT: 7,076

BOW HILL ROAD

Good

Over: BEAVER RUN

ELGIN BOROUGH, Erie, PA

Built 2009 Load: 35.4 t ADT: 369

SHARP ROAD

Good

Over: LT. CONNEAUTTEE

WASHINGTON TOWNSHIP, Erie, PA

Built 2009 Load: 35.4 t ADT: 528

T391 FINK ROAD

Good

Over: LITTLE TROUGH CREEK

2 MI. NW. OF CASSVILLE, Huntingdon, PA

Built 2008 Load: 35.4 t ADT: 94

SR 3015

Good

Over: SANDY CREEK

MINERAL TOWNSHIP, Venango, PA

Built 2009 Load: 35.4 t ADT: 131

PA 26

Good

Over: YELLOW CREEK

0.5 MILE SOUTH OF SR 1024, Bedford, PA

Built 2009 Load: 35.4 t ADT: 1,528

SR 0247

Good

Over: SOUTH BR TUNKHANNOCK CRK

SCOTT TWP 243 N TR 438, Lackawanna, PA

Built 2009 Load: 35.4 t ADT: 2,857

SR 219 US 219

Good

Over: CLARION R&W.CENTER ST&RR

JOHNSONBURG BORO, Elk, PA

Built 2010 Load: 35.4 t ADT: 7,146

PA-309

Good

Over: NORRISTOWN ROAD

1.5 MI. W. PA-152 3257F02, Montgomery, PA

Built 2010 Load: 35.4 t ADT: 52,549

DYLAN DRIVE

Good

Over: LITTLE CEDAR CREEK

CEDAR CREEK FARM, Lehigh, PA

Built 1999 Load: 35.4 t ADT: 200

T-562 OLD STATE RD

Good

Over: LITTLE MILL CREEK

4.6 mi ENE int w/ US 322, Clarion, PA

Built 2019 Load: 35.4 t ADT: 50

INDIAN SPRING DR

Good

Over: TRIBUTARY SWARR RUN

300 FT W. OF KINGSWAY DR., Lancaster, PA

Built 1985 Load: 35.4 t ADT: 300

SR 1018

Good

Over: OPPENHEIMER RUN

2 MI.NE.OF CESSNA, Bedford, PA

Built 1938 Load: 35.6 t ADT: 137

SR 4026 (LR 06031)

Good

Over: PLUM CREEK

SHARTLESVILLE ROAD/WALNUT, Berks, PA

Built 1953 Load: 35.6 t ADT: 1,410

US 6

Good

Over: TRIBUTARY SUGAR CREEK

4MI.W. OF BURLINGTONBORO, Bradford, PA

Built 1924 Load: 35.6 t ADT: 3,431

Showing 14,151-14,200 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.