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

WYNNEWOOD ROAD

Good

Over: EAST BRANCH INDIAN CREEK

WYNNEWOOD;WOODSIDE 3478H1, Montgomery, PA

Built 2018 Load: 33.7 t ADT: 4,440

SR 17 SUNBURY ST

Good

Over: UNT TO SUSQUEHANNA RIVER

0.3 MI NW OF U.S. 11, Perry, PA

Built 2018 Load: 33.7 t ADT: 1,439

Roseville Rd

Good

Over: Seeley Creek

0.5 MI S OF JOBS CORNERS, Tioga, PA

Built 2017 Load: 33.7 t ADT: 496

BABLIN HILL RD

Good

Over: Gordon Run

TRIUMPH TOWNSHIP, Warren, PA

Built 2017 Load: 33.7 t ADT: 745

Strope Rd (SR4023)

Good

Over: NORTH FORK CROSS CREEK

CROSS CREEK TOWNSHIP, Washington, PA

Built 2017 Load: 33.7 t ADT: 309

WESTWOOD DR

Good

Over: UPPER DRY RUN

500 WEST OF SR 0068, Beaver, PA

Built 2017 Load: 33.7 t ADT: 292

41st Street

Good

Over: AMTRAK(Hsbg Branch)

S. of Poplar 3589G05, Philadelphia, PA

Built 2016 Load: 33.7 t ADT: 5,771

PA TPK (I-76)

Good

Over: Swatara Cr. & T-496

W. of Toll House Rd. Int., Dauphin, PA

Built 2016 Load: 33.7 t ADT: 24,423

2116 T-613

Good

Over: UNK TR TO FOX RUN

PARKER ROAD LAKE TWP, Mercer, PA

Built 2017 Load: 33.7 t ADT: 41

T-712

Good

Over: CASH CREEK

VILLAGE OF ULSTER, Bradford, PA

Built 2017 Load: 33.7 t ADT: 500

SR6011 HARRISON AV

Good

Over: SR 3022 ROARING BRK RR

SCRANTON CTY .1 M E TR307, Lackawanna, PA

Built 2017 Load: 33.7 t ADT: 14,347

US 219

Good

Over: SR2047 T419 T431 BUFF CR

BUFFALO CREEK NBL, Somerset, PA

Built 2018 Load: 33.7 t ADT: 2,137

US 219

Good

Over: SR2047 T419 T431 BUFF CR

BUFFALO CREEK SBL, Somerset, PA

Built 2018 Load: 33.7 t ADT: 2,038

PA 248 (LR 175)

Good

Over: E. BR. Monocacy Creek

POW/MIA REMEMBRANCE HWY., Northampton, PA

Built 2019 Load: 33.7 t ADT: 5,960

PA 248 (LR 471)

Good

Over: Tri. Tohokendauqua Creek

BEERSVILLE, Northampton, PA

Built 2019 Load: 33.7 t ADT: 7,207

SR2001

Good

Over: TRIB. TO PINE CREEK

BIRCH ROAD, Clarion, PA

Built 2019 Load: 33.7 t ADT: 629

PA 913

Good

Over: ROARING RUN

1.1 MILE WEST OF TR 655, Fulton, PA

Built 2019 Load: 33.7 t ADT: 1,208

T-830 RATTIGAN RD

Good

Over: Buffalo Creek

0.75 mi NW of Rattigan, Butler, PA

Built 2019 Load: 33.7 t ADT: 175

SR 4016

Good

Over: UNT TO WALNUT RUN

NORTHERN CAMB.BORO.LINE, Cambria, PA

Built 2021 Load: 33.7 t ADT: 2,230

T-420 (CO. BR.#31)

Good

Over: SUGAR RUN

2.6 MI. SW OF WYALUSING, Bradford, PA

Built 2019 Load: 33.7 t ADT: 100

OAKBOURNE ROAD

Good

Over: GOOSE CREEK

E of Trellis Lane 3583J10, Chester, PA

Built 2020 Load: 33.7 t ADT: 1,000

PA-124;Mt Rose Ave

Good

Over: Mill Creek

1.1 Mi. E. of York City, York, PA

Built 2020 Load: 33.7 t ADT: 16,584

SR 4022

Good

Over: Branch of Buffalo Creek

BUFFALO TOWNSHIP, Washington, PA

Built 2021 Load: 33.7 t ADT: 220

SR 18 ALBION RD

Good

Over: OVER SR 90 EB/WB

GIRARD TOWNSHIP, Erie, PA

Built 2022 Load: 33.7 t ADT: 2,712

BRIDGE 2303 T-388

Good

Over: OVER SHENANGO RIVER

KELLY ROAD HERMITAGE, Mercer, PA

Built 2022 Load: 33.7 t ADT: 732

Stoney Point Rd

Good

Over: Mud Run

1.5 MI S OF BERMUDIAN, Adams, PA

Built 1962 Load: 34.0 t ADT: 2,447

T-377 (BR. # 1)

Good

Over: SOUTH BOWMAN CREEK

EAST INT. SR. 2008, Bradford, PA

Built 2015 Load: 34.0 t ADT: 100

(I-80 EBL)

Good

Over: SR1004 NB SUSQUEHANNA R.

I80 MIFFLINVILLE RIVER BR, Columbia, PA

Built 1963 Load: 34.0 t ADT: 12,623

SR 2003

Good

Over: MCINTIRE RUN

WHARTON TOWNSHIP, Fayette, PA

Built 1936 Load: 34.0 t ADT: 479

US 220

Good

Over: PINE RUN

1.75 MI W OF LINDEN, Lycoming, PA

Built 1959 Load: 34.0 t ADT: 11,264

SR 220

Good

Over: OVER PINE RUN

1.75 MI W OF LINDEN, Lycoming, PA

Built 1941 Load: 34.0 t ADT: 11,243

NEWLINS MILL ROAD

Good

Over: BUSHKILL CREEK

AT SR 2019, Northampton, PA

Built 2004 Load: 34.0 t ADT: 200

SR 1035

Good

Over: SR 0079

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1965 Load: 34.0 t ADT: 2,898

SR 2023

Good

Over: PIGEON CREEK

CARROLL TOWNSHIP, Washington, PA

Built 1961 Load: 34.0 t ADT: 601

COTTMAN AVENUE

Good

Over: CSX-N Y SHORT LINE

NR.RISING SUN AVE 3481G01, Philadelphia, PA

Built 1905 Load: 34.0 t ADT: 19,664

I-76 (WB)

Good

Over: MOYAMENSING ST;TWENTIETH

MOYAMENSING OVPASS 37D06, Philadelphia, PA

Built 1957 Load: 34.0 t ADT: 23,768

RICHBORO ROAD

Good

Over: NESHAMINY CREEK

1 MI.S.NEWTOWN BORO 36E02, Bucks, PA

Built 2007 Load: 34.0 t ADT: 19,561

SR 4087

Good

Over: LITTLE PUCKETA CREEK

0.1 MILES N OF SR 4085, Westmoreland, PA

Built 2006 Load: 34.0 t ADT: 6,306

SR 3005

Good

Over: SCRUBGRASS CREEK

CLINTON TOWNSHIP, Venango, PA

Built 2009 Load: 34.0 t ADT: 356

SR 0030

Good

Over: Laughlintown Run

Laughlintown, Westmoreland, PA

Built 2009 Load: 34.0 t ADT: 4,435

SR 0980

Good

Over: Brush Run

Canonsburg, Washington, PA

Built 2009 Load: 34.0 t ADT: 9,814

RAMP G

Good

Over: KELLY DRIVE (NB)

GUS. LAKE INTER. 3479H09, Philadelphia, PA

Built 2011 Load: 34.0 t ADT: 4,368

MILLER STATION RD

Good

Over: FRENCH CREEK

ROCKDALE TOWNSHIP, Crawford, PA

Built 2011 Load: 34.0 t ADT: 578

PA 26

Good

Over: SHAVER CREEK

0.1 MILE SOUTH OF SR 1029, Huntingdon, PA

Built 2011 Load: 34.0 t ADT: 2,618

SR 4045

Good

Over: GREEN CREEK

3 MI NORTH OF ROHRSBURG, Columbia, PA

Built 2011 Load: 34.0 t ADT: 243

LR 14003

Good

Over: NORTH FORK BEECH CREEK

1 MI W CLARENCE, Centre, PA

Built 2011 Load: 34.0 t ADT: 636

E. COWLEY RUN ROAD

Good

Over: E. BRANCH COWLEY RUN

PORTAGE TOWNSHIP, Potter, PA

Built 2011 Load: 34.0 t ADT: 20

SR 0158 Mercer Rd

Good

Over: W BR LITTLE NESHANNOCK C

WILMINGTON TWP, Mercer, PA

Built 2011 Load: 34.0 t ADT: 2,427

SR 1029 BLATCHLEY

Good

Over: TROWBRIDGE CREEK

GT BEND TWP 1.3M N SR1031, Susquehanna, PA

Built 2012 Load: 34.0 t ADT: 970

PA 897; SR 0897

Good

Over: HARNISH RUN

0.75 MI. NW OF BLAINSPORT, Lancaster, PA

Built 2012 Load: 34.0 t ADT: 3,598

Showing 13,601-13,650 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.