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

PADEN RD

Good

Over: EDWARDS RUN

BETW T-385 & T-379, Lawrence, PA

Built 2018 Load: 35.6 t ADT: 100

T-663 OTTS CORNER

Good

Over: OUGHOUGHTON CREEK

0.5 MILE EAST OF PA611, Northampton, PA

Built 2018 Load: 35.6 t ADT: 100

Knauss Road

Good

Over: Monocacy Creek

AT SR 946, Northampton, PA

Built 2018 Load: 35.6 t ADT: 150

S. Cottonwood Road

Good

Over: Indian Creek

0.2 MI SOUTH OF PA 946, Northampton, PA

Built 2018 Load: 35.6 t ADT: 150

SR 3014

Good

Over: LOST CREEK

.5 MI E OF BARRONVALE, Somerset, PA

Built 2018 Load: 35.6 t ADT: 71

SR 4025(LR 06174)

Good

Over: Schuylkill River

SHOEMAKERSVILLE-MILLER ST, Berks, PA

Built 2019 Load: 35.6 t ADT: 748

SR 2003

Good

Over: OVER MILL CREEK

1.25 MI NE OF MILLGROVE, Columbia, PA

Built 2021 Load: 35.6 t ADT: 92

TAILGATE ROAD

Good

Over: TRIB TO LICKING CREEK

1 MI. S. OF KNOBSVILLE, Fulton, PA

Built 2019 Load: 35.6 t ADT: 25

SR 2005

Good

Over: JOES RUN

2.5 MI N OF GEM, Fulton, PA

Built 2019 Load: 35.6 t ADT: 287

SR 1037 PORTERS RD

Good

Over: OVER LITTLE FEDERAL RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 2019 Load: 35.6 t ADT: 388

SR 0070

Good

Over: Allegheny Valley RR

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 2019 Load: 35.6 t ADT: 24,022

Grand Central Road

Good

Over: Little Bushkill Creek

East of Plainfield Trail, Northampton, PA

Built 2019 Load: 35.6 t ADT: 90

SUMNEYTOWN PIKE

Good

Over: UNAMI CREEK

1.5MI. E. PA-29 2917H08, Montgomery, PA

Built 2019 Load: 35.6 t ADT: 11,325

INTERSTATE 95 (NB)

Good

Over: CAMBRIA STREET

N.OF LEHIGH AVE. 3591C04, Philadelphia, PA

Built 2019 Load: 35.6 t ADT: 80,788

S. SWARTHMORE AVE

Good

Over: STONEY CREEK

.3MI.NORTH I-95 3807-K1, Delaware, PA

Built 2020 Load: 35.6 t ADT: 2,400

RICKERT ROAD

Good

Over: MORRIS RUN

HILLTOWN TOWNSHIP 21H02, Bucks, PA

Built 2020 Load: 35.6 t ADT: 750

Valley View Road

Good

Over: Catasauqua Creek

East of SR 3021, Northampton, PA

Built 2020 Load: 35.6 t ADT: 100

TROUT RUN ROAD

Good

Over: TROUT RUN

3 MI SE OF SR 44, Lycoming, PA

Built 2020 Load: 35.6 t ADT: 25

PA 191 (LR 169)

Good

Over: Paradise Creek

NEAR JCT.PA 447, Monroe, PA

Built 2020 Load: 35.6 t ADT: 4,934

Flicksville Road

Good

Over: Martins Creek

0.1 MI West of SR 1015, Northampton, PA

Built 2020 Load: 35.6 t ADT: 400

Bushkill Street

Good

Over: Bushkill Creek

South of Main Street, Northampton, PA

Built 2020 Load: 35.6 t ADT: 150

Clearfield Road

Good

Over: Bushkill Creek

East of Moorestown, Northampton, PA

Built 2020 Load: 35.6 t ADT: 150

ARDMORE AVENUE

Good

Over: COBBS CREEK

SW RT 30 26E03/ 3588-A1, Delaware, PA

Built 2020 Load: 35.6 t ADT: 11,804

MILL CREEK ROAD

Good

Over: EAST OCTORARO CREEK

1200 FT EAST OF SR 2009, Lancaster, PA

Built 2020 Load: 35.6 t ADT: 455

SR 2040; US 40 BUS

Good

Over: Coal Lick Run

CITY OF UNIONTOWN, Fayette, PA

Built 2020 Load: 35.6 t ADT: 2,559

T-329

Good

Over: SALT SPRING RUN

3 MI W OF ROARING BRANCH, Tioga, PA

Built 2020 Load: 35.6 t ADT: 50

NEW HANOVER SQ. RD

Good

Over: BRANCH OF SWAMP CREEK

GILBERTSVILLE 3028B03, Montgomery, PA

Built 2022 Load: 35.6 t ADT: 2,455

NEW HANOVER SQUARE

Good

Over: UNNAMED TRIB TO SWAMP CR

GILBERTSVILLE 3028B3, Montgomery, PA

Built 2021 Load: 35.6 t ADT: 2,376

OLD DANIEL BOONE

Good

Over: SPRING CREEK

DANIEL BOONE HOMESTEAD, Berks, PA

Built 2020 Load: 35.6 t ADT: 25

NAVAL RUN ROAD

Good

Over: Little Slate Run

F.D. 12, Lycoming, PA

Built 2022 Load: 35.6 t ADT: 100

SR 3001

Good

Over: Crabapple Creek

RICHILL TOWNSHIP, Greene, PA

Built 2022 Load: 35.6 t ADT: 185

WOLF BR.RD T-508

Good

Over: Conodoguinet Creek

3.0 NE CARLISLE MIDDLESEX, Cumberland, PA

Built 2020 Load: 35.6 t ADT: 2,197

SR 0116

Good

Over: South Branch of Conewago

1/2 MI. W. OF BRUSHTOWN, Adams, PA

Built 2021 Load: 35.6 t ADT: 7,415

TAGART ROAD

Good

Over: MACOBY CREEK

0.3 MI.E OF SR29 2805-A5, Montgomery, PA

Built 2021 Load: 35.6 t ADT: 500

WEST KING STREET

Good

Over: MANATAWNY CREEK

POTTSTOWN 3138F1, Montgomery, PA

Built 2022 Load: 35.6 t ADT: 4,840

US 422; Lincoln Av

Good

Over: Trib. Tulpehocken Creek

2 MI.W. OF MYERSTOWN, Lebanon, PA

Built 2021 Load: 35.6 t ADT: 13,336

T-357 (BR # 2)

Good

Over: MILL CREEK

STATE GAME LAND # 280, Bradford, PA

Built 2021 Load: 35.6 t ADT: 50

Ben Franklin Blvd

Good

Over: Trib To Stauffer Run

650 ft from Greenfield Rd, Lancaster, PA

Built 2016 Load: 35.6 t ADT: 2,000

SR 1006

Good

Over: TRIB BALD EAGLE CREEK

MILESBURG, Centre, PA

Built 2021 Load: 35.6 t ADT: 785

LAUREL HILL RD.

Good

Over: SLATEFORD CREEK

1.1MI W. OF PA611, Northampton, PA

Built 2021 Load: 35.6 t ADT: 100

T - 553

Good

Over: WALLACE RUN

1.4 MI E OF BURLINGTON, Bradford, PA

Built 2022 Load: 35.6 t ADT: 50

STOTLER RD

Good

Over: PLUM CREEK

PM06 - PLUM CREEK NO. 6, Allegheny, PA

Built 2021 Load: 35.6 t ADT: 53

I-83; SR 0083

Good

Over: T-411; Londonderry Rd

.25 MI.N.OF UNION DEPOSIT, Dauphin, PA

Built 2021 Load: 35.6 t ADT: 74,815

HONEY HOLE ROAD

Good

Over: Trib. to Nescopeck Creek

1 MILE NE OF SR 309, Luzerne, PA

Built 2020 Load: 35.6 t ADT: 300

SWAMP PIKE

Good

Over: UN. TRIB. TO SWAMP CREEK

1.0 MI NE SR 4030 3027-J6, Montgomery, PA

Built 2022 Load: 35.6 t ADT: 12,064

TANNENBAUM RD

Good

Over: LITTLE MAHANTANGO CREEK

N.OF SR 4016 NR.PITMAN, Schuylkill, PA

Built 2022 Load: 35.6 t ADT: 100

T-880 LEMMON H. RD

Good

Over: Glade Run

WALKCHALK NO.3, Armstrong, PA

Built 2022 Load: 35.6 t ADT: 50

PA 997; Main St.

Good

Over: W. Branch Antietam Creek

N.E. OF MONT ALTO, Franklin, PA

Built 2023 Load: 35.6 t ADT: 3,217

MUNICIPAL DRIVE

Good

Over: UNT TO BEAVER CREEK

S. GO Carlson Blvd 3580K1, Chester, PA

Built 2023 Load: 35.6 t ADT: 4,500

T-392

Good

Over: Bender Run

Valley Road, Lycoming, PA

Built 2023 Load: 35.6 t ADT: 250

Showing 14,301-14,350 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.