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 0038

Good

Over: Connoquessing Creek

3.5 mi N SR 68 Intersect., Butler, PA

Built 2018 Load: 36.6 t ADT: 5,411

US 22; SR 0022

Good

Over: I-83; SR 0083

COLONIAL PARK, Dauphin, PA

Built 2018 Load: 36.6 t ADT: 35,476

VALLEY STREET

Good

Over: South Branch Codorus Cre

VALLEY ST GLEN ROCK, York, PA

Built 2018 Load: 36.6 t ADT: 1,603

Ackermanville Rd

Good

Over: Waltz Creek Trib.

0.5 MI West of SR 1015, Northampton, PA

Built 2019 Load: 36.6 t ADT: 200

Braddock Avenue

Good

Over: Norfolk Southern RR

NS01 KENMAWR BRIDGE, Allegheny, PA

Built 2021 Load: 36.6 t ADT: 15,000

PA 74; SR 0074

Good

Over: LITTLE CONEWAGO CREEK

SHILOH, York, PA

Built 2019 Load: 36.6 t ADT: 20,528

PA 183 (LR 06016)

Good

Over: Trib Little Northkill CR

N.OF SR 4016, Berks, PA

Built 2019 Load: 36.6 t ADT: 10,551

SR1012

Good

Over: Dixon Run

100ft E SR 403 Intersect., Indiana, PA

Built 2019 Load: 36.6 t ADT: 556

JACOBY ROAD

Good

Over: LITTLE DEER CREEK

DL05 LIT DEER CRK NO. 5, Allegheny, PA

Built 2020 Load: 36.6 t ADT: 484

SR 2013

Good

Over: POND CREEK

THORNHURST TP .8M N 2016, Lackawanna, PA

Built 1961 Load: 36.6 t ADT: 1,477

SUMNEYTOWN PIKE

Good

Over: RIDGE VALLEY CREEK

2MI. E. PA-29 2917H08, Montgomery, PA

Built 2019 Load: 36.6 t ADT: 11,325

INTERSTATE 95 (NB)

Good

Over: DEL PALMER MONTG BERKS

N. OF COLUMBIA AVE 3590K5, Philadelphia, PA

Built 2020 Load: 36.6 t ADT: 80,788

T-321 (CTY BR 12)

Good

Over: SWEITZERS RUN

0.1 MI SE OF DICE, Union, PA

Built 2021 Load: 36.6 t ADT: 75

SR 4002

Good

Over: SUGAR RUN

2.9 MILES WEST OF SR 764, Blair, PA

Built 2021 Load: 36.6 t ADT: 1,407

PA 160

Good

Over: LITTLE CONEMAUGH RIVER

0.3 MI. S. OF PA 53, Cambria, PA

Built 2022 Load: 36.6 t ADT: 993

T-899

Good

Over: LABORDE BRANCH

150 FT SE OF SR 4013, Clearfield, PA

Built 2020 Load: 36.6 t ADT: 100

SR 2024

Good

Over: Delaware-Lackawanna RR

2/10 mi W of Prospect St, Monroe, PA

Built 2020 Load: 36.6 t ADT: 5,773

SR1026;Hopeland Rd

Good

Over: Furnace Run

1 MI.N.E. BRICKERVILLE, Lancaster, PA

Built 2022 Load: 36.6 t ADT: 1,061

SR 3035 (Allison M

Good

Over: Long Run

3 MI.W. OF BRODBECKS, York, PA

Built 2021 Load: 36.6 t ADT: 99

CHESTNUT GROVE RD

Good

Over: STONY RUN

NE DILLSBURG/STONY RUN, York, PA

Built 2021 Load: 36.6 t ADT: 961

T-600;Gristmill Rd

Good

Over: Conestoga River

0.3 Mi S of Martindale, Lancaster, PA

Built 2023 Load: 36.6 t ADT: 1,720

PA TPK 0576

Good

Over: Trib Little Raccoon Run

Robinson Township, Washington, PA

Built 2016 Load: 36.6 t ADT: 9,999

PA 234; SR 0234

Good

Over: Conewago Creek

W OF CULPS CORNERS, Adams, PA

Built 2021 Load: 36.6 t ADT: 354

SOUTH LEHIGH ST.

Good

Over: Little Lehigh Creek

LEHIGH STREET BRIDGE, Lehigh, PA

Built 2023 Load: 36.6 t ADT: 14,516

BRISTOL ROAD

Good

Over: LINCOLN HIGHWAY (US1)

NESHAMINY FALLS 41G03, Bucks, PA

Built 2021 Load: 36.6 t ADT: 14,277

LAUREL ST

Good

Over: Laurel Run

ARCH BORO .2MI N PARK STR, Lackawanna, PA

Built 2016 Load: 36.6 t ADT: 100

T-638 BR#335

Good

Over: LAUREL RUN

1.0 MI. SE OF MORELAND, Lycoming, PA

Built 2022 Load: 36.6 t ADT: 52

PA 902

Good

Over: Mahoning Creek

NINTH STREET LEHIGHTON, Carbon, PA

Built 2022 Load: 36.6 t ADT: 6,036

T325 PETERS CRK RD

Good

Over: Peters Creek

1/2 MI SW OF SR 3005, Lancaster, PA

Built 2022 Load: 36.6 t ADT: 50

SR 2023(LR 461 E)

Good

Over: SHAWNEE CREEK

HOLLOW ROAD SHAWNEE, Monroe, PA

Built 2023 Load: 36.6 t ADT: 1,624

T-500 BAKER ROAD

Good

Over: LITTLE CONEWAGO CREEK

Dover & West Manchester, York, PA

Built 2022 Load: 36.6 t ADT: 5,920

SR 62 MAIN STREET.

Good

Over: OVER LITTLE SANDY CREEK

POLK BOROUGH, Venango, PA

Built 2022 Load: 36.6 t ADT: 2,110

SR 4022

Good

Over: Branch of Buffalo Creek

BUFFALO TOWNSHIP, Washington, PA

Built 2023 Load: 36.6 t ADT: 220

SR 3005

Good

Over: WILLOUGHBY RUN

3 MI. S.W. OF GETTYSBURG, Adams, PA

Built 1963 Load: 36.9 t ADT: 569

SR 837

Good

Over: BALDWIN ROAD

Homestead Interchange, Allegheny, PA

Built 1966 Load: 36.9 t ADT: 7,917

CLIFF MINE RD

Good

Over: MONTOUR RUN

MT05 MONTOUR RUN NO. 5, Allegheny, PA

Built 1883 Load: 36.9 t ADT: 5,321

GIBRALTAR ROAD

Good

Over: ANTIETAM CREEK

ALTHOUSE MILL BRIDGE, Berks, PA

Built 1980 Load: 36.9 t ADT: 11,973

CHINQUAPIN ROAD

Good

Over: IRONWORKS CREEK

.1MI.N.BUCK ROAD 36B11, Bucks, PA

Built 1966 Load: 36.9 t ADT: 2,108

KANSAS ROAD

Good

Over: LITTLE NESHAMINY CREEK

WARRINGTON TWP. 33J02, Bucks, PA

Built 1979 Load: 36.9 t ADT: 400

SPRINGFIELD STREET

Good

Over: SEPTA (tracks removed)

150 FT E SR 0309 2694-J1, Bucks, PA

Built 1985 Load: 36.9 t ADT: 150

SR 144-PA 144

Good

Over: HAMMERSLEY FORK

4 MI EAST HAMMERSLEY FORK, Clinton, PA

Built 1962 Load: 36.9 t ADT: 199

SR 2008

Good

Over: JACKS CREEK

3 MILES NORTH EAST WAGNER, Mifflin, PA

Built 1954 Load: 36.9 t ADT: 357

SR 1006

Good

Over: W BR.CHILLISQUAQUE CREEK

5 MI N WASHINGTONVILLE, Montour, PA

Built 1943 Load: 36.9 t ADT: 405

SR1042 T614 KROMER

Good

Over: PA 33(LR 1098)

KROMER RD.OVER PA.33, Northampton, PA

Built 1969 Load: 36.9 t ADT: 617

GLAZE ROAD

Good

Over: HOKENDAUQUA CREEK

0.1 M. EAST OF SR 4007, Northampton, PA

Built 1839 Load: 36.9 t ADT: 75

WILD TURKEY LN

Good

Over: LITTLE SCHUYLKILL RIVER

NORTH OF RAUSCHS, Schuylkill, PA

Built 1956 Load: 36.9 t ADT: 200

NICHOLS BRIDGE

Good

Over: PIGEON CREEK trib

150 WEST OF TR 784, Washington, PA

Built 1938 Load: 36.9 t ADT: 450

SR 0982

Good

Over: NINEMILE RUN

UNITY TOWNSHIP, Westmoreland, PA

Built 1955 Load: 36.9 t ADT: 2,834

SR 3101

Good

Over: JACKS RUN

S. GREENSBURG & HEMPFIELD, Westmoreland, PA

Built 1956 Load: 36.9 t ADT: 3,599

SR 4081

Good

Over: CHARTIERS RUN

CITY OF LOWER BURRELL, Westmoreland, PA

Built 1971 Load: 36.9 t ADT: 1,453

Showing 14,751-14,800 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.