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 8011 (Ramp N)

Good

Over: Mill Creek

@ I-83 & SR 124 INT, York, PA

Built 2020 Load: 36.3 t ADT: 378

T-356 (DAUVA LUCH)

Good

Over: MOUSE CREEK

3 MI S OF DORNSIFE, Northumberland, PA

Built 2020 Load: 36.3 t ADT: 200

PA 53

Good

Over: POWELL RUN

0.4 MILE SOUTH OF SR 253, Cambria, PA

Built 2022 Load: 36.3 t ADT: 1,375

SR 0286

Good

Over: McCARTNEY RUN

INDIANA MALL, Indiana, PA

Built 2021 Load: 36.3 t ADT: 11,884

East Hillis Street

Good

Over: Jacks Run

500 EAST OF SR 119, Westmoreland, PA

Built 2020 Load: 36.3 t ADT: 4,500

SR 4008

Good

Over: SPRUCE RUN

1.3 MILE WEST OF SR 985, Somerset, PA

Built 2020 Load: 36.3 t ADT: 375

Silver Valley Road

Good

Over: McMichael Creek

0.5 miles from SR 209, Monroe, PA

Built 2021 Load: 36.3 t ADT: 400

LINCOLN HIGHWAY

Good

Over: RAMP IJ

NORTH PA.TURNPIKE 41E05, Bucks, PA

Built 2021 Load: 36.3 t ADT: 52,412

INTERSTATE 295 EB

Good

Over: DEL R PA 32 NJ 29 SB

OVER DELAWARE R, Bucks, PA

Built 2021 Load: 36.3 t ADT: 20,100

PA 271

Good

Over: COAL PIT RUN

1.5 MILE SOUTH OF TR 422, Cambria, PA

Built 2021 Load: 36.3 t ADT: 1,857

T-573 WYLIE ROAD

Good

Over: ROCKY RUN

INT WITH SR 2007, Butler, PA

Built 2021 Load: 36.3 t ADT: 200

SR 949-PA 949

Good

Over: MAXWELL RUN

6 MI SW PORTLAND MILLS, Elk, PA

Built 2021 Load: 36.3 t ADT: 397

SOUTH RONKS ROAD

Good

Over: Pequea Creek

0.55 MI. SOUTH OF SR 30, Lancaster, PA

Built 2021 Load: 36.3 t ADT: 2,790

SR 2025

Good

Over: Welty Run

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 2023 Load: 36.3 t ADT: 759

SR 144-PA 144

Good

Over: WENZEL HOLLOW RUN

CARTER CAMP, Potter, PA

Built 2022 Load: 36.3 t ADT: 279

T-358

Good

Over: Trib. to Larrys Creek

Zinck Road, Lycoming, PA

Built 2023 Load: 36.3 t ADT: 20

SHIRKSVILLE ROAD

Good

Over: EARLAKILL CREEK

2.1 E SHIRKSVILLE/EARKILL, Lebanon, PA

Built 2023 Load: 36.3 t ADT: 420

N. HEWITT AVE T582

Good

Over: GEORGES RUN

400 WEST OF SR 18, Washington, PA

Built 2023 Load: 36.3 t ADT: 4,170

RAYMOND E WILT HW

Good

Over: I-279 - HOV LANE

OVER HOV LANE @ PARK&RIDE, Allegheny, PA

Built 1987 Load: 36.6 t ADT: 27,287

PINE CREEK ROAD

Good

Over: PINE CREEK

Adjacent to Gun Club Road, Berks, PA

Built 1972 Load: 36.6 t ADT: 211

SR 80 WBL

Good

Over: OVER S.R. 0339

S. OF MIFFLINVILLE, Columbia, PA

Built 1964 Load: 36.6 t ADT: 14,651

SR 4017

Good

Over: SCOTT RUN

CENTER TOWNSHIP, Greene, PA

Built 1938 Load: 36.6 t ADT: 48

SR 1023

Good

Over: STANDING STONE CREEK

5 MI.N.OF MCALEVYS FORT, Huntingdon, PA

Built 1938 Load: 36.6 t ADT: 56

SR 3009

Good

Over: Pequea Creek

2 Mi. So. Baumgardner, Lancaster, PA

Built 1962 Load: 36.6 t ADT: 1,443

T-541

Good

Over: TULES RUN

0.8 MI ESE OF BELLA VISTA, Lycoming, PA

Built 1984 Load: 36.6 t ADT: 200

SR 1004(LR 45027)

Good

Over: Forest Hills Run

1.MI. E. OF PA 314, Monroe, PA

Built 1957 Load: 36.6 t ADT: 330

HULBERT HILL ROAD

Good

Over: SWIFTWATER CREEK

500 FT SOUTH OF SR 1004, Monroe, PA

Built 1956 Load: 36.6 t ADT: 150

SR 4007 (LR 48055)

Good

Over: HOKENDAUQUA CREEK

S.HOCH ROAD, Northampton, PA

Built 1961 Load: 36.6 t ADT: 102

PA 601

Good

Over: SHADE CREEK

SEANOR, Somerset, PA

Built 1943 Load: 36.6 t ADT: 621

Roupe Road

Good

Over: CHARTIERS CREEK TRIB.

200 WEST OF SR 519, Washington, PA

Built 1958 Load: 36.6 t ADT: 100

SR 3008

Good

Over: CHARTIERS CREEK

SOUTH FRANKLIN TOWNSHIP, Washington, PA

Built 2004 Load: 36.6 t ADT: 591

SR 120-PA 120

Good

Over: PADDY RUN

RENOVO BOROUGH, Clinton, PA

Built 2006 Load: 36.6 t ADT: 2,955

SR 0222

Good

Over: OVER NORFOLK SOUTHERN RR

UPPER MACUNGIE, Lehigh, PA

Built 2007 Load: 36.6 t ADT: 20,363

SR 4017

Good

Over: Bermudian Creek

2 miles S. of Kralltown, York, PA

Built 2007 Load: 36.6 t ADT: 1,006

SR 0295

Good

Over: Trib big conewago creek

North of Strinestown, York, PA

Built 2007 Load: 36.6 t ADT: 1,142

SR 4029

Good

Over: Middle Fork Cross Creek

0.4 mi N of SR 4018, Washington, PA

Built 2009 Load: 36.6 t ADT: 885

T-379 HAM HOLL RD

Good

Over: EAST LICKING CREEK

0.15 MI SW SR 4002 INT, Juniata, PA

Built 2010 Load: 36.6 t ADT: 41

FRETZ ROAD

Good

Over: SKIPPACK CREEK

1/4 MI. E. I-476 3031D07, Montgomery, PA

Built 2011 Load: 36.6 t ADT: 6,339

SR 1021 EIGTH ST

Good

Over: SUSQUEHANNA RIVER

JENKINS TWP JCT SR 2004, Luzerne, PA

Built 2011 Load: 36.6 t ADT: 13,384

SR 1021

Good

Over: POPLAR RUN

2 MI. N.W. OF MANCHESTER, York, PA

Built 2011 Load: 36.6 t ADT: 2,046

SR 4014

Good

Over: Swatara Creek

1 MI.N.W. STEELSTOWN, Lebanon, PA

Built 2011 Load: 36.6 t ADT: 423

SR 3013

Good

Over: BACK CREEK

3.5 MI S. OF ST. THOMAS, Franklin, PA

Built 2011 Load: 36.6 t ADT: 902

SR 4010

Good

Over: Trib. to Slippery Rock C

3.5mi W SR 38 Inter., Butler, PA

Built 2011 Load: 36.6 t ADT: 264

SR 2076 Stew-twn

Good

Over: I-83; SR 0083

2 MI.E. OF SHREWSBERRY, York, PA

Built 2011 Load: 36.6 t ADT: 845

SUMNEYTOWN PIKE

Good

Over: TRIB. TO SKIPPACK CREEK

MAINLAND 15J10/3143E01, Montgomery, PA

Built 2012 Load: 36.6 t ADT: 15,258

SR 2051

Good

Over: WOLF RUN

1 MI S OF PENNSDALE, Lycoming, PA

Built 2012 Load: 36.6 t ADT: 683

N. MECKESVILLE RD

Good

Over: MUD RUN

NE of SR 534, Carbon, PA

Built 2012 Load: 36.6 t ADT: 75

SR 0018

Good

Over: Branch of Browns Creek

8.1 mi N from SR 0021, Greene, PA

Built 2012 Load: 36.6 t ADT: 812

PA 764

Good

Over: SUGAR RUN

0.5 MILE SOUTH OF ALTOONA, Blair, PA

Built 2012 Load: 36.6 t ADT: 12,891

Sunnyside Rd T-326

Good

Over: East Penn Railway

.5 Mi S Balt Pk 3799-C10, Chester, PA

Built 2012 Load: 36.6 t ADT: 200

Showing 14,651-14,700 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.