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

RIDGEWOOD DRIVE

Good

Over: MILLERS RUN

SOUTH OF PA50 NEAR BISHOP, Washington, PA

Built 1993 Load: 62.6 t ADT: 200

T-764 (Swift Road)

Good

Over: MILLERS RUN

SOUTH OF PAXINOS, Northumberland, PA

Built 1998 Load: 62.6 t ADT: 500

MONUMENT AVENUE

Good

Over: BRANCH PENNYPACK CREEK

3259-C1, Montgomery, PA

Built 1999 Load: 62.6 t ADT: 500

SR 1023

Good

Over: E.B. OF BRIAR CREEK

BERWICK BORO, Columbia, PA

Built 2002 Load: 62.6 t ADT: 2,355

T-693 FISH ROAD

Good

Over: OVER CONNEAUT CREEK

2 MI.S.CONNEAUTVILLE, Crawford, PA

Built 2003 Load: 62.6 t ADT: 250

T-314 (ARROYO RD)

Good

Over: CLARION RIVER

7900FT S OF SR 3002 INTER, Elk, PA

Built 2004 Load: 62.6 t ADT: 100

T-336 BITTERSWEET

Good

Over: BEAVER CREEK

1 mi N int w/ SR 208, Clarion, PA

Built 2007 Load: 62.6 t ADT: 50

SR 3111

Good

Over: I-76 Trib Sewickley Crk

New Stanton, Westmoreland, PA

Built 2008 Load: 62.6 t ADT: 9,705

T-395

Good

Over: PA TPK (I-476)

TOWAMENCIN TWP, Montgomery, PA

Built 2008 Load: 62.6 t ADT: 1,000

SR 1017

Good

Over: BEAVERDAM CREEK

1.5 MI N OF HUNTERSTOWN, Adams, PA

Built 1926 Load: 63.5 t ADT: 306

TWP ROUTE 303 RT

Good

Over: NORTH FORK KINGS CREEK

004031 J. C. ATEN BRIDGE, Beaver, PA

Built 2002 Load: 63.5 t ADT: 65

S.R 4025

Good

Over: TRIBUTARY BENTLEY CREEK

VILLAGE OF BIG POND, Bradford, PA

Built 1934 Load: 63.5 t ADT: 513

SR 98 RESERVOIR RD

Good

Over: OVER CUSSEWAGO CREEK TR

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1987 Load: 63.5 t ADT: 1,803

SR 3029

Good

Over: SMITH RUN

3.0 MILE SOUTH OF TR 655, Huntingdon, PA

Built 1938 Load: 63.5 t ADT: 256

T-385 AMES RD

Good

Over: FERGUSON RUN

0.2 MILE W OF SR 3006, Jefferson, PA

Built 1989 Load: 63.5 t ADT: 249

T595 CHARLESTWN RD

Good

Over: W BR LITTLE CONESTOGA CR

0.6 MI WEST OF SR 3031, Lancaster, PA

Built 2000 Load: 63.5 t ADT: 415

PA 14

Good

Over: LYCOMING CREEK

1.5 MILES N OF RALSTON, Lycoming, PA

Built 1930 Load: 63.5 t ADT: 2,552

PA 309 BY-PASS

Good

Over: WAVERLY/CEMETERY RDS.

CEDARBROOK 3370-C06, Montgomery, PA

Built 1960 Load: 63.5 t ADT: 47,918

SR 1017

Good

Over: MILL RIFT CREEK

WSTFLL TWP 3.6M W SR 1025, Pike, PA

Built 1997 Load: 63.5 t ADT: 1,179

SR 0381

Good

Over: ROLLING ROCK CREEK

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1993 Load: 63.5 t ADT: 983

PA TPK (PA 66) SB

Good

Over: T-871

HEMPFIELD TWP, Westmoreland, PA

Built 1993 Load: 63.5 t ADT: 10,429

PA TPK (PA 66)

Good

Over: T-871

HEMPFIELD TWP, Westmoreland, PA

Built 1993 Load: 63.5 t ADT: 10,429

54th Street

Good

Over: AMTRAK

S of Paschall Ave. 36H02, Philadelphia, PA

Built 1977 Load: 63.5 t ADT: 4,200

SR 973

Good

Over: LARRYS CREEK

BORO OF SALLADASBURG, Lycoming, PA

Built 1928 Load: 63.5 t ADT: 880

RIVER ROAD

Good

Over: JERICHO CREEK

.6MI.TO LR 09054 26D12, Bucks, PA

Built 2000 Load: 63.5 t ADT: 5,544

SR 1016

Good

Over: TRIB BIG COVE CREEK

1 MI.S OF MCCONNELLSBURG, Fulton, PA

Built 2002 Load: 63.5 t ADT: 3,002

BETHLEHEM PIKE

Good

Over: SEPTA

N OF T-PIKE 3257F09, Montgomery, PA

Built 2004 Load: 63.5 t ADT: 13,799

T-772

Good

Over: LICK RUN

0.1 MI SE OF ENGLISH CTR., Lycoming, PA

Built 2006 Load: 63.5 t ADT: 31

WHEELER ROAD

Good

Over: LINESVILLE CREEK

CONNEAUT, Crawford, PA

Built 2006 Load: 63.5 t ADT: 250

SR 666 ZEIS.HWY.

Good

Over: OVER FOOLS CREEK

HOWE TOWNSHIP, Forest, PA

Built 2007 Load: 63.5 t ADT: 139

ELK PARK ROAD

Good

Over: ELK CREEK

1400 NORTH OF CREEK RD, Erie, PA

Built 2007 Load: 63.5 t ADT: 1,041

PA TPK(I-576) EB

Good

Over: TR TO POTATO GARDEN RUN

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 63.5 t ADT: 2,025

PA PTK (I-576) WB

Good

Over: TR TO POTATO GARDEN RUN

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 63.5 t ADT: 2,025

SR 0324 Pequea Bl.

Good

Over: Pequea Creek

Pequea, Lancaster, PA

Built 2009 Load: 63.5 t ADT: 375

MILLERS RUN ROAD

Good

Over: MILLERS RUN

0.7 MI W OF SR0050, Allegheny, PA

Built 2009 Load: 63.5 t ADT: 4,718

PA 403 COOPERSDALE

Good

Over: CONEMAUGH RIVER

0.4 MILE NORTH OF PA 56, Cambria, PA

Built 2009 Load: 63.5 t ADT: 5,960

T533 Patterson Rd

Good

Over: W.BR.SUSQUEHANNA RIVER

.8 MI.NW.OF WATKINS, Cambria, PA

Built 2009 Load: 63.5 t ADT: 198

Allendale Road

Good

Over: PA Turnpike

28D13 / 3366J6, Montgomery, PA

Built 1998 Load: 63.5 t ADT: 13,198

RIBEROLLE STREET

Good

Over: KELSEY CREEK

BORO OF WELLSBORO, Tioga, PA

Built 2016 Load: 63.5 t ADT: 250

SR 3039 (LOBSTOR)

Good

Over: Allen Creek

2 mi SE of 7 Spr(LOBSTOR), Somerset, PA

Built 2019 Load: 63.5 t ADT: 88

ALLENDALE RD(T110)

Good

Over: ABRAMS RUN

NEAR US RT.202 3366-J6, Montgomery, PA

Built 1968 Load: 64.2 t ADT: 13,198

POTTSTOWN PIKE

Good

Over: DOWNINGTOWN INTCHG.RM.VW

RT.100 TPK.RP.VW 21B4, Chester, PA

Built 1987 Load: 64.4 t ADT: 27,780

HADFIELD ROAD

Good

Over: BEAVER CREEK

E.BRANDYWINE TWP. 19E11, Chester, PA

Built 1916 Load: 64.4 t ADT: 391

MID-COUNTY EXWY-SB

Good

Over: ROSE VALLEY ROAD

ROSE VALLEY ROAD 34G10, Delaware, PA

Built 1989 Load: 64.4 t ADT: 36,649

SR 1009

Good

Over: W BR CLARION RIVER

JOHNSONBURG BORO, Elk, PA

Built 1992 Load: 64.4 t ADT: 1,708

T-342 HOWE RD

Good

Over: MILL CREEK

2.0 MILES NORTH OF SR 949, Jefferson, PA

Built 1905 Load: 64.4 t ADT: 50

SR 0171 TR 171

Good

Over: ELK CREEK

FELL TWP @ INT SR 1011, Lackawanna, PA

Built 1953 Load: 64.4 t ADT: 6,671

SIMS ST

Good

Over: CONNOQUENESSING CREEK

037023 EWING PARK BRIDGE, Lawrence, PA

Built 2005 Load: 64.4 t ADT: 2,800

SR 1002(LR443 PAR)

Good

Over: NORFOLK SOUTHERN RR

TILGHMAN STREET, Lehigh, PA

Built 1940 Load: 64.4 t ADT: 19,613

SR 4001

Good

Over: OVER TR OF LITTLE PINE C

2 MI SW OF ENGLISH CENTER, Lycoming, PA

Built 1930 Load: 64.4 t ADT: 134

Showing 19,901-19,950 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.