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

BRIDGE 1416 T-634

Good

Over: OTTER CREEK

REDFOOT RD DEAWARE TWP, Mercer, PA

Built 2015 Load: 40.2 t ADT: 43

Freeport Rd SR3017

Good

Over: Glade Run

Center Hill No. 6, Armstrong, PA

Built 2015 Load: 40.2 t ADT: 2,389

SR 2047

Good

Over: BLUELICK CREEK

1.3 MI N OF MEYERSDALE, Somerset, PA

Built 2015 Load: 40.2 t ADT: 1,918

SR 4027/BUS US 220

Good

Over: BALD EAGLE CREEK

0.4 MILE NORTH OF TR 453, Blair, PA

Built 2015 Load: 40.2 t ADT: 3,354

SR 0739 TR 739

Good

Over: SHOHOLA CREEK

BLOOMING GRV 650 N I-84, Pike, PA

Built 2015 Load: 40.2 t ADT: 4,029

SR 8001

Good

Over: Sherrick Run

0.1 mi W from SR 0119, Westmoreland, PA

Built 2016 Load: 40.2 t ADT: 1,821

WEST SMITHFIELD ST

Good

Over: TRIB TO YOUGH RIVER

2082 FEET SW OF SR 48, Allegheny, PA

Built 2016 Load: 40.2 t ADT: 1,273

SR 0415 TR 415

Good

Over: HARVEYS LAKE INLET

HRVYS LK BO .1M W SR 1415, Luzerne, PA

Built 2016 Load: 40.2 t ADT: 2,299

PA 372

Good

Over: Buck Run

1 Mi. W. of Millersville, Lancaster, PA

Built 2016 Load: 40.2 t ADT: 813

Cranberry Road

Good

Over: BERMUDIAN CREEK

VILLAGE OF LIMEROCK MILL, Adams, PA

Built 2016 Load: 40.2 t ADT: 505

SPEEDWELL FORGE RD

Good

Over: HAMMER CREEK

2 MI.SW OF BRICKERVILLE, Lancaster, PA

Built 2016 Load: 40.2 t ADT: 370

Wharton Furnace Rd

Good

Over: STONY FORK CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 2017 Load: 40.2 t ADT: 335

Melcroft Rd

Good

Over: Champion Creek

SALTLICK TOWNSHIP, Fayette, PA

Built 2017 Load: 40.2 t ADT: 1,146

Hamilton Blvd

Good

Over: IRON RUN

TREXLERTOWN NEAR RT.100, Lehigh, PA

Built 2018 Load: 40.2 t ADT: 11,679

Locust Ridge Rd

Good

Over: Trout Creek

LOCUST RIDGE ROAD, Monroe, PA

Built 2017 Load: 40.2 t ADT: 2,869

Glades Pk (SR 31)

Good

Over: SANDY HOLLOW CREEK

0.5 MI EAST OF SR 1005, Somerset, PA

Built 2017 Load: 40.2 t ADT: 3,931

Listonburg Rd

Good

Over: WHITES CREEK

LISTONBURG, Somerset, PA

Built 2017 Load: 40.2 t ADT: 1,337

Mt Tabor Rd

Good

Over: Opossum Creek

1/4 MI N OF BENDERSVILLE, Adams, PA

Built 2017 Load: 40.2 t ADT: 206

SR 0982 SH

Good

Over: Ninemile Run

UNITY TOWNSHIP, Westmoreland, PA

Built 2017 Load: 40.2 t ADT: 1,335

Andersontown Rd

Good

Over: YELLOW BREECHES CREEK

1 MI NE OF ANDERSONTOWN, York, PA

Built 2018 Load: 40.2 t ADT: 157

Dutch Ridge Road

Good

Over: SR 0376

0.4 Mi. W of Brighton Rd., Beaver, PA

Built 2019 Load: 40.2 t ADT: 2,656

HOPKINS ROAD ("I")

Good

Over: N. BRANCH CALKINS CREEK

JUST NORTH OF BROOK ROAD, Wayne, PA

Built 2017 Load: 40.2 t ADT: 75

SR 0858 TR 858

Good

Over: SUMMERS CREEK

MIDDLETOWN TP 1M N SR4017, Susquehanna, PA

Built 2017 Load: 40.2 t ADT: 117

SR 0066

Good

Over: GUFFY RUN

0.2 Mi S SR 2059 Inter., Armstrong, PA

Built 2017 Load: 40.2 t ADT: 2,345

SR 219 - US 219

Good

Over: LEWIS RUN

1 MI S LEWIS RUN, McKean, PA

Built 2017 Load: 40.2 t ADT: 4,447

PULASKI RD

Good

Over: OVER DEER CREEK

4 MILES FROM STATE LINE, Lawrence, PA

Built 2018 Load: 40.2 t ADT: 1,426

PA 287

Good

Over: NORRIS BROOK

1 MI S OF MIDDLEBURY CTR, Tioga, PA

Built 2018 Load: 40.2 t ADT: 4,387

SR 1011

Good

Over: DELAWARE RIVER

SHOHOLA TWP TR 97 NY LINE, Pike, PA

Built 2018 Load: 40.2 t ADT: 19

T-492 Becker Road

Good

Over: Bells Gap Run

.1 MI.S.OF BELLWOOD, Blair, PA

Built 2018 Load: 40.2 t ADT: 180

SR 2010

Good

Over: TRIB.TO SUGAR RUN

5 MI.S.OF VIALL HILL, Bradford, PA

Built 2020 Load: 40.2 t ADT: 1,793

I-78 (LR 285 SP)

Good

Over: Old 22

.75 MI.W.OF KRUMSVILLE, Berks, PA

Built 2019 Load: 40.2 t ADT: 41,311

MILFORD GREEN ROAD

Good

Over: N Branch Bermudian Creek

0.3 MI W KRALLTOWN/AIRPRT, York, PA

Built 2019 Load: 40.2 t ADT: 119

ON TSR 500

Good

Over: BRANCH PENNS CREEK

2 MI SW COBURN, Centre, PA

Built 2019 Load: 40.2 t ADT: 605

INTERSTATE 295 WB

Good

Over: PA Canal

.5 MI.N.YARDLEY BO.33B09, Bucks, PA

Built 2019 Load: 40.2 t ADT: 37,025

SR 4035

Good

Over: Buffalo Creek

1.1 mi NW SR 4010 Inter., Armstrong, PA

Built 2019 Load: 40.2 t ADT: 258

SR 1036

Good

Over: SIX MILE RUN

DEFIANCE, Bedford, PA

Built 2019 Load: 40.2 t ADT: 1,172

SR 2001

Good

Over: SIDELING HILL CREEK

3 MI S OF SELEA, Huntingdon, PA

Built 2019 Load: 40.2 t ADT: 225

SR 0070

Good

Over: PA Route 31

SOUTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 2019 Load: 40.2 t ADT: 27,178

INTERSTATE 95 (SB)

Good

Over: RICHMOND ANN ST SEPTA

N.OF CAMBRIA 3591C04, Philadelphia, PA

Built 2023 Load: 40.2 t ADT: 66,507

T-665

Good

Over: PLEASANT STREAM

2.1 MI NE OF MARSH HILL, Lycoming, PA

Built 2020 Load: 40.2 t ADT: 108

SR 4019 - Leger Rd

Good

Over: Norfolk Southern Railway

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 2022 Load: 40.2 t ADT: 4,763

I-83 SB; SR 0083

Good

Over: T-431 Valley Road

1 MI.N.E. OF PROGRESS, Dauphin, PA

Built 2020 Load: 40.2 t ADT: 28,234

SR 0488

Good

Over: I-79 NB & SB

PORTERSVILLE, Butler, PA

Built 2020 Load: 40.2 t ADT: 3,765

PA TPK 0576

Good

Over: SR 4011 Quicksilver Rd

0.1 mile south of SR 0980, Washington, PA

Built 2016 Load: 40.2 t ADT: 14,420

PA TPK 0576

Good

Over: SR 0980 and Tributary

Cecil Township, Washington, PA

Built 2020 Load: 40.2 t ADT: 9,330

INTERSTATE 295 EB

Good

Over: PA CANAL

OVER PA CANAL, Bucks, PA

Built 2021 Load: 40.2 t ADT: 24,112

SR 1034 Morgan Rd

Good

Over: SR 0079

CECIL TOWNSHIP, Washington, PA

Built 2019 Load: 40.2 t ADT: 2,003

SR 2048

Good

Over: BRANCH OF MUDDY CREEK

1 MI.N.E. OF LAUREL, York, PA

Built 2021 Load: 40.2 t ADT: 341

SR 477-PA 477

Good

Over: FISHING CREEK

LOGANTON BORO, Clinton, PA

Built 2021 Load: 40.2 t ADT: 975

SR 1051

Good

Over: Mounts Creek

BULLSKIN TOWNSHIP, Fayette, PA

Built 2023 Load: 40.2 t ADT: 331

Showing 16,401-16,450 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.