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 6 GRAND ARMY HY

Good

Over: OVER DEADMANS CREEK

FREEHOLD TOWNSHIP, Warren, PA

Built 1991 Load: 42.6 t ADT: 2,202

T-304 FLAT ROAD

Good

Over: W. BR. CALDWELL CREEK

SOUTHWEST TOWNSHIP, Warren, PA

Built 2010 Load: 42.6 t ADT: 40

ROCK SCHOOL BRIDGE

Good

Over: KINGS CREEK TRIB.

250 SOUTH OF TR 869, Washington, PA

Built 1902 Load: 42.6 t ADT: 30

SR 0006 TR 6

Good

Over: LACKAWAXEN RIVER

HONESDALE BORO JCT TR 191, Wayne, PA

Built 1943 Load: 42.6 t ADT: 14,833

SR 0136

Good

Over: LITTLE SEWICKLY CREEK

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1993 Load: 42.6 t ADT: 6,784

SR 0993

Good

Over: TINKERS RUN

IRWIN BOROUGH, Westmoreland, PA

Built 1992 Load: 42.6 t ADT: 3,793

PA TPK (PA 66)

Good

Over: SR 0136

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1991 Load: 42.6 t ADT: 10,429

EDGECLIFF ROAD

Good

Over: CHARTIERS RUN

1.7 MI NE OF SR 366, Westmoreland, PA

Built 1996 Load: 42.6 t ADT: 2,300

SR 0029 TR 29

Good

Over: SUSQUEHANNA RIVER

TUNKHANOCK BO .1 M S TR 6, Wyoming, PA

Built 1979 Load: 42.6 t ADT: 16,342

SCHUYLKILL & RMP.B

Good

Over: RAMP C;FROM VINE STREET

VINE ST.INTERCH. 3590 A06, Philadelphia, PA

Built 1988 Load: 42.6 t ADT: 57,785

Germantown Avenue

Good

Over: Wissahickon Creek

S.NORTHWESTERN AVE.16G01, Philadelphia, PA

Built 2003 Load: 42.6 t ADT: 9,500

SR 99 - I 99

Good

Over: T-422

BELLEFONTE, Centre, PA

Built 1997 Load: 42.6 t ADT: 8,805

SR 86 W.B.

Good

Over: OVER FRENCH CREEK E.BR.

GREENFIELD TOWNSHIP, Erie, PA

Built 1997 Load: 42.6 t ADT: 3,696

SR 62 FRANKLIN RD.

Good

Over: OVER OTTER CREEK

COOLSPRINGS TOWNSHIP, Mercer, PA

Built 1997 Load: 42.6 t ADT: 3,515

SR 2008 WILSON ST

Good

Over: OVER FRENCH CREEK

WEST MEAD TOWNSHIP, Crawford, PA

Built 1997 Load: 42.6 t ADT: 1,989

STUDEBAKER RD

Good

Over: SLIPPERY ROCK CREEK

037016 RAMBLERS REST, Lawrence, PA

Built 1997 Load: 42.6 t ADT: 100

SR 1006

Good

Over: PETERS CREEK

FINLEYVILLE BORO, Washington, PA

Built 1998 Load: 42.6 t ADT: 7,148

T-462 BARON ROAD

Good

Over: ELK CREEK

900 NORTH OF W ROAD, Erie, PA

Built 1995 Load: 42.6 t ADT: 101

I-81 SB

Good

Over: SR 8051 I-81 NB RAMPS

WB TWP I-81 SB OVR SR8051, Luzerne, PA

Built 1999 Load: 42.6 t ADT: 25,267

PA 164

Good

Over: PLUM CREEK

1.00 MILE EAST FROM PA 36, Blair, PA

Built 2000 Load: 42.6 t ADT: 8,938

SR 4049

Good

Over: ELK RUN

VILLAGE OF ELK GROVE, Columbia, PA

Built 2000 Load: 42.6 t ADT: 242

SR 2007

Good

Over: BIG CREEK

MILLS STORE, Bedford, PA

Built 2000 Load: 42.6 t ADT: 326

US 22/322 WB

Good

Over: PA325/Trib to Susque Riv

WEST OF CLARKS FERRY, Dauphin, PA

Built 1999 Load: 42.6 t ADT: 20,241

US 11&15; SR 0011

Good

Over: Wildcat Creek

LIVERPOOL BORO, Perry, PA

Built 2000 Load: 42.6 t ADT: 17,398

SR 58 KINSMAN ROAD

Good

Over: OVER SUGAR CREEK

GREEN TOWNSHIP, Mercer, PA

Built 2001 Load: 42.6 t ADT: 1,267

SR 3017 UTICA BRG.

Good

Over: OVER FRENCH CREEK

UTICA BOROUGH, Venango, PA

Built 2001 Load: 42.6 t ADT: 633

SR 1011(LR06122)

Good

Over: WILLOW CREEK

WALNUTTOWN PLEAS.HILL RD., Berks, PA

Built 2001 Load: 42.6 t ADT: 2,044

T-374 SUMMERVILLE

Good

Over: CHERRY RUN

0.1 mi S int w/ SR 2009, Clarion, PA

Built 2001 Load: 42.6 t ADT: 50

SR 4003

Good

Over: OVER HEMLOCK CREEK

3 MI W OF BLOOSMBURG, Columbia, PA

Built 2001 Load: 42.6 t ADT: 1,004

SR 0267 TR 267

Good

Over: EAST BR WYALUSING CREEK

RUSH TWP .1 M W SR 3037, Susquehanna, PA

Built 2001 Load: 42.6 t ADT: 2,430

SR 22-US 22

Good

Over: SR 3023

0.5 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2002 Load: 42.6 t ADT: 1,415

SR 118

Good

Over: OVER LITTLE MUNCY CK

VILLAGE OF LAIRDSVILLE, Lycoming, PA

Built 2002 Load: 42.6 t ADT: 2,530

SR 1025 GRANT ST.

Good

Over: OVER FRENCH CREEK

CAMBRIDGE SPRINGS BOROUGH, Crawford, PA

Built 2003 Load: 42.6 t ADT: 1,943

PA TPK TOLL 43 NB

Good

Over: SR 1006

SR 0043 NB OVER SR 1006, Washington, PA

Built 2000 Load: 42.6 t ADT: 5,633

SR 79 NB

Good

Over: OVER REC.TRAIL & FNCH.CK

UNION TOWNSHIP, Crawford, PA

Built 2003 Load: 42.6 t ADT: 6,554

MCCONNELLS MILLS

Good

Over: CHARTIERS CREEK TRIB.

50 WEST OF SR 519, Washington, PA

Built 2002 Load: 42.6 t ADT: 232

WEBSTER AVENUE

Good

Over: MAPLE CREEK

WEBSTER RD. AT FLOUR MILL, Washington, PA

Built 2002 Load: 42.6 t ADT: 75

BRIDGE 2324 T-307

Good

Over: OVER BOBBY RUN

LYNNWOOD RD. HERMITAGE, Mercer, PA

Built 2003 Load: 42.6 t ADT: 1,423

SR15 SOUTHBOUND

Good

Over: SB OVER SR 2005

BORO OF MANSFIELD, Tioga, PA

Built 2003 Load: 42.6 t ADT: 5,697

US 30

Good

Over: SNAKE SPRING VALLEY RUN

1 MILE WEST OF EVERETT, Bedford, PA

Built 2003 Load: 42.6 t ADT: 16,145

10TH ST BYPASS

Good

Over: PEDESTRIAN WALKWAY

149 Fort Duquesne Blvd Br, Allegheny, PA

Built 2002 Load: 42.6 t ADT: 23,748

PA97 : SR 0097

Good

Over: WHITE RUN

S.E.OF GETTYSBURG, Adams, PA

Built 2003 Load: 42.6 t ADT: 9,061

SR 322-US 322

Good

Over: SR 3042 / OLIVER RUN

2 MILE NORTH PORT MATILDA, Centre, PA

Built 2004 Load: 42.6 t ADT: 5,526

SR 0284

Good

Over: OVER BLOCKHOUSE CR.

5MI W OF BUTTONWOOD, Lycoming, PA

Built 2005 Load: 42.6 t ADT: 112

SR 22-US 22

Good

Over: TWP 664

1 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2004 Load: 42.6 t ADT: 4,676

SR 99-I 99

Good

Over: ZENDT LANE

1 MILE NORTH PORT MATILDA, Centre, PA

Built 2005 Load: 42.6 t ADT: 7,082

T-870 PATTERSON RD

Good

Over: OVER OIL CREEK TRIB

HYDETOWN BORO, Crawford, PA

Built 2005 Load: 42.6 t ADT: 250

SR4008

Good

Over: PA TURNPIKE (I-76)

2 MI NORTH OF NEWVILLE, Cumberland, PA

Built 2005 Load: 42.6 t ADT: 569

ON TSR 382

Good

Over: FISHING CREEK

MILL HALL, Clinton, PA

Built 2006 Load: 42.6 t ADT: 1,109

SR 3003

Good

Over: RAYSTOWN LAKE

WEAVER FALLS, Huntingdon, PA

Built 2006 Load: 42.6 t ADT: 354

Showing 17,201-17,250 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.