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

US 30

Good

Over: PATTERSON RUN

0.5 MI E OF BREEZY POINT, Fulton, PA

Built 2012 Load: 34.0 t ADT: 3,269

SR 2003 MERCER PK.

Good

Over: CONNEAUT OUTLET

UNION TWP., Crawford, PA

Built 2012 Load: 34.0 t ADT: 616

PA 601

Good

Over: QUEMAHONING CREEK

BOSWELL BOROUGH, Somerset, PA

Built 2012 Load: 34.0 t ADT: 2,713

US 202 PARKWAY

Good

Over: TRAIL; MILL CREEK

0.25 MI W PA152 3033H08, Bucks, PA

Built 2012 Load: 34.0 t ADT: 17,881

T-661 REICHERT RD

Good

Over: ELK CREEK

400 S OF DUNN VALLEY RD, Erie, PA

Built 2012 Load: 34.0 t ADT: 1,768

Grant Road

Good

Over: Muckinipattis Creek

0.5 Mi SE of US-13 28-F3, Delaware, PA

Built 2012 Load: 34.0 t ADT: 4,055

SR 4032

Good

Over: PA TURNPIKE I-476;NB-736

S ABINGTN TP .4M E TR307, Lackawanna, PA

Built 2013 Load: 34.0 t ADT: 5,040

SR 1043 PRICE ROAD

Good

Over: WOODCOCK CREEK

WOODCOCK TWP, Crawford, PA

Built 2013 Load: 34.0 t ADT: 119

SR 2008 W HIGH ST

Good

Over: TRIB TO FRENCH CREEK

UNION TWP, Erie, PA

Built 2013 Load: 34.0 t ADT: 632

NORMAN WAY

Good

Over: MILL CREEK

0.13 MI SE OF SR 0019, Erie, PA

Built 2013 Load: 34.0 t ADT: 1,750

S. BAKER RD. T-412

Good

Over: MIDDLE CREEK

1150FT NW OF TANNERY RD., Wayne, PA

Built 2013 Load: 34.0 t ADT: 250

US 30

Good

Over: LICKING CREEK

HARRISONVILLE, Fulton, PA

Built 2013 Load: 34.0 t ADT: 3,269

BRANDYWINE AVENUE

Good

Over: E. BR. BRANDYWINE CREEK

1 MI. S. BUS30 3581J1, Chester, PA

Built 2014 Load: 34.0 t ADT: 16,526

T-616 Browns Road

Good

Over: Browns Run

0.2 Miles North of SR188, Greene, PA

Built 2014 Load: 34.0 t ADT: 40

SR 3028 OWEGO TPK

Good

Over: SR 191 TR 191

CHERRY RDGE TP OVER TR191, Wayne, PA

Built 2014 Load: 34.0 t ADT: 2,661

PA 116; SR 0116

Good

Over: WHITE RUN

3 MI. E. OF GETTYSBURG, Adams, PA

Built 2014 Load: 34.0 t ADT: 7,490

T-816 Crumb Road

Good

Over: Clear Shade Creek

3 Mi. S.W. of Ogletown, Somerset, PA

Built 2014 Load: 34.0 t ADT: 25

UNION STREET

Good

Over: CEDAR CREEK

NEAR ST ELMO STREET, Lehigh, PA

Built 2014 Load: 34.0 t ADT: 2,700

SR 4027

Good

Over: SOUTH FORK OF BENS CREEK

.25 MI W OF FORWARDSTOWN, Somerset, PA

Built 2014 Load: 34.0 t ADT: 82

T606 Bald Eagle SP

Good

Over: Big Fill Run

1Mi NW of Bald Eagle, Blair, PA

Built 2014 Load: 34.0 t ADT: 109

SR 1010

Good

Over: SALT LICK CREEK

GRT BEND TWP .1 M E TR 11, Susquehanna, PA

Built 2014 Load: 34.0 t ADT: 81

EAST LAFAYETTE ST.

Good

Over: ROSS STREET

1/2 MI. W. I-276 3367H3, Montgomery, PA

Built 2014 Load: 34.0 t ADT: 5,000

SLATE RUN RD

Good

Over: SLATE CREEK

HEMPFIELD Township, Westmoreland, PA

Built 2015 Load: 34.0 t ADT: 4,580

ON TSR 565

Good

Over: CHATHAM RUN

McELHATTON, Clinton, PA

Built 2015 Load: 34.0 t ADT: 583

PA 372; SR 0372

Good

Over: BUCK RUN

1MI W CHRISTIANA, Lancaster, PA

Built 2016 Load: 34.0 t ADT: 813

PA TPK (I-276)

Good

Over: SR 0413 New Rodgers Rd.

1.5 M West Exit 358, Bucks, PA

Built 2016 Load: 34.0 t ADT: 46,280

HERO RD (SR 3006)

Good

Over: PA. FORK DUNKARD CREEK

GILMORE TOWNSHIP, Greene, PA

Built 2017 Load: 34.0 t ADT: 67

LAMOR ROAD

Good

Over: LACKAWANNOCK CREEK

JEFFERSON TOWNSHIP, Mercer, PA

Built 2017 Load: 34.0 t ADT: 393

Hackney Station Rd

Good

Over: Horne Run

AMWELL TOWNSHIP, Washington, PA

Built 2017 Load: 34.0 t ADT: 174

Quakake Rd SR4010

Good

Over: Quakake Creek

GERHARDS QUAKAKE RD., Carbon, PA

Built 2018 Load: 34.0 t ADT: 1,046

Marsh Creek Road

Good

Over: BRANCH LITTLE MARSH CR

YARNELL, Centre, PA

Built 2017 Load: 34.0 t ADT: 299

SR 322- US 322

Good

Over: LAUREL RUN

2 MI W PHILIPSBURG, Clearfield, PA

Built 2017 Load: 34.0 t ADT: 10,529

PA 851; SR 0851

Good

Over: SWANS CREEK

2 MI.W. OF NEW FREEDOM, York, PA

Built 2018 Load: 34.0 t ADT: 2,250

T-458 JONES HILL R

Good

Over: OVER STILLWATER CREEK

SUGAR GROVE TOWNSHIP, Warren, PA

Built 2019 Load: 34.0 t ADT: 150

SR 3041

Good

Over: Short Creek

MORRIS TOWNSHIP, Washington, PA

Built 2019 Load: 34.0 t ADT: 102

SR 2029

Good

Over: TR RAYSTOWN BR JUNIATA R

.5 MI S OF BREEZEWOOD, Bedford, PA

Built 2019 Load: 34.0 t ADT: 390

PA 372; Christiana

Good

Over: E. Branch Octoraro Creek

Christiana Borough, Lancaster, PA

Built 2019 Load: 34.0 t ADT: 1,275

SR 2001 N.CASTLE R

Good

Over: OVER INDIAN RUN

WILMINGTON TOWNSHIP, Mercer, PA

Built 2020 Load: 34.0 t ADT: 902

PA 747

Good

Over: HILL VALLEY CREEK

2.5 MILES SOUTH OF SR 522, Huntingdon, PA

Built 2022 Load: 34.0 t ADT: 2,184

SR 3016

Good

Over: MILL CREEK

CANTON BOROUGH, Bradford, PA

Built 2021 Load: 34.0 t ADT: 161

HOWELLVILLE ROAD

Good

Over: NORFOLK SOUTHERN CORP

0.5 Mi E SR252 ADC3475-G1, Chester, PA

Built 2021 Load: 34.0 t ADT: 2,104

US 30; Lincoln hwy

Good

Over: BR. Campbell Run

.5 MI. W.OF ST.THOMAS, Franklin, PA

Built 2021 Load: 34.0 t ADT: 9,478

OTTS ROAD

Good

Over: MACOBY CREEK

0.1 Mi E SR0663 2805-B6, Montgomery, PA

Built 2022 Load: 34.0 t ADT: 750

Linton Hill Road

Good

Over: Little Juniata creek

1.5 NW Duncannon, Perry, PA

Built 2022 Load: 34.0 t ADT: 358

SR 26-PA 26

Good

Over: SLAB CABIN RUN

PINE GROVE MILLS, Centre, PA

Built 2022 Load: 34.0 t ADT: 6,831

HODGENS BRIDGE

Good

Over: BUFFALO CREEK

NEAR SR 221 INTERSECTION, Washington, PA

Built 2022 Load: 34.0 t ADT: 60

STEUBENVL-ENLOW RD

Good

Over: MONTOUR RUN

MT04 MONTOUR RUN NO. 4, Allegheny, PA

Built 1890 Load: 34.3 t ADT: 5,216

CALIFORNIA AVENUE

Good

Over: FARRAGUT ST JACKS RUN

JA01 JACKS RUN NO 1, Allegheny, PA

Built 1925 Load: 34.3 t ADT: 11,263

SR 20 RIDGE RD

Good

Over: OVER ELK CREEK

GIRARD TOWNSHIP, Erie, PA

Built 1952 Load: 34.3 t ADT: 7,549

SR 0221

Good

Over: BUFFALO CREEK

BLAINE TOWNSHIP, Washington, PA

Built 1961 Load: 34.3 t ADT: 116

Showing 13,651-13,700 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.