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

STAUFFER ROAD

Good

Over: DRAINAGE SWALE

AT KISSEL HILL RD, Lancaster, PA

Built 2004 Load: 52.6 t ADT: 300

SR4025

Good

Over: BUFF & PITT RR

PINE HILL ROAD, Armstrong, PA

Built 2008 Load: 52.6 t ADT: 1,365

T-483

Good

Over: MARSH CREEK

1.3 MI NORTH OF WELLSBORO, Tioga, PA

Built 2008 Load: 52.6 t ADT: 154

T-597

Good

Over: BENNETTS RUN

1.4 MI. E. MONTOURSVILLE, Lycoming, PA

Built 1993 Load: 52.6 t ADT: 200

SR 0051

Good

Over: SR 0119

NORTH UNION TOWNSHIP, Fayette, PA

Built 2008 Load: 52.6 t ADT: 17,177

SR 0857

Good

Over: BRANCH OF GEORGES CREEK

FAIRCHANCE BOROUGH, Fayette, PA

Built 2008 Load: 52.6 t ADT: 2,070

SR 0982

Good

Over: WELTY RUN

Weltytown, Westmoreland, PA

Built 2008 Load: 52.6 t ADT: 2,890

SR 1013

Good

Over: MILL CREEK

PIKE TWP 2M N TR 706, Bradford, PA

Built 2009 Load: 52.6 t ADT: 158

T388 / T432

Good

Over: Cross Creek

200 South of SR 50, Washington, PA

Built 2009 Load: 52.6 t ADT: 615

Colonial Road

Good

Over: Swamp Creek

1 MI S of PA-73 3028-C4, Montgomery, PA

Built 2009 Load: 52.6 t ADT: 612

GRANT STREET

Good

Over: SHENANGO RIVER

1000 EAST OF US 224, Lawrence, PA

Built 2009 Load: 52.6 t ADT: 1,500

US 522

Good

Over: LICKING CREEK

1.56 MILE SOUTH OF PA 475, Fulton, PA

Built 2010 Load: 52.6 t ADT: 4,960

T 1005

Good

Over: JENKS RUN

5 MI W OF EMPORIUM, Cameron, PA

Built 2010 Load: 52.6 t ADT: 15

South Street

Good

Over: AMTRAK

East of 33rd Street, Philadelphia, PA

Built 2010 Load: 52.6 t ADT: 18,600

LITTLE MEDIX ROAD

Good

Over: MEDIX RUN

200 SW OF MEDIX GRADE RD, Clearfield, PA

Built 2010 Load: 52.6 t ADT: 10

PA TPK (Toll 43)

Good

Over: S.R. 2048

West of West Brownsville, Washington, PA

Built 2009 Load: 52.6 t ADT: 1,376

T-554 Greenhills

Good

Over: Little Sewickley Creek

AT INT W/T561, Westmoreland, PA

Built 2006 Load: 52.6 t ADT: 500

T-498;Lauffer Road

Good

Over: Iron Run

0.5 MI NW OF SR 341, Dauphin, PA

Built 2021 Load: 52.6 t ADT: 25

TOWNSHIP ROAD 634

Good

Over: MUDDY CREEK

CUMBERLAND TOWNSHIP, Greene, PA

Built 2023 Load: 52.6 t ADT: 30

Fort McCord Rd

Good

Over: DENNIS CREEK

2 MI. NE OF EDENVILLE, Franklin, PA

Built 2016 Load: 52.8 t ADT: 571

Roseville Sigel Rd

Good

Over: MILL CREEK

NORTH OF ROSEVILLE, Jefferson, PA

Built 2017 Load: 52.8 t ADT: 142

T-730 GOOSE HOLLOW

Good

Over: SPAULDING CREEK

3.0 mi. N of Sheshequin, Bradford, PA

Built 2020 Load: 52.8 t ADT: 50

ARAMINGO AVE. (SB)

Good

Over: SPUR A SEPTA GIRARD RP B

NR.DELAWARE AVE.3591A05, Philadelphia, PA

Built 2020 Load: 52.8 t ADT: 11,769

PA TPK (I-76)

Good

Over: SR 0441

E. of Harrisburg East Int, Dauphin, PA

Built 2023 Load: 52.8 t ADT: 6,174

KETTLE RD; SR 1013

Good

Over: SINKING RUN

.75 MI NE OF CULP, Blair, PA

Built 2017 Load: 53.1 t ADT: 530

JEFFERSON-HTS RD

Good

Over: LR 187 PAR-I 376

JEFFERSON HTS.RD.O/I376, Allegheny, PA

Built 1962 Load: 53.5 t ADT: 2,286

GUYS RUN RD

Good

Over: GUYS RUN

1 1/2 MI.N. OF SR 0028, Allegheny, PA

Built 1936 Load: 53.5 t ADT: 3,661

MCCLAREN RD

Good

Over: SR 0376 EB WB

MCCLAREN RD EXIT, Allegheny, PA

Built 1991 Load: 53.5 t ADT: 976

RAMP J

Good

Over: RAMP C

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 53.5 t ADT: 3,275

SR2010

Good

Over: GARRETTS RUN

FAIRGROUND ROAD, Armstrong, PA

Built 1936 Load: 53.5 t ADT: 937

HARDINS RUN RD

Good

Over: NORTH FORK KINGS CREEK

200E.OF TWP.RD.300, Beaver, PA

Built 1930 Load: 53.5 t ADT: 687

T-683

Good

Over: DEER LICK CREEK

0.6 MI. E OF SHESHEQUIN, Bradford, PA

Built 1991 Load: 53.5 t ADT: 50

TYBURN ROAD

Good

Over: PENNSYLVANIA AVENUE

.5MI.MORRISVILLE 39F09, Bucks, PA

Built 1954 Load: 53.5 t ADT: 2,766

SR 99 - I 99

Good

Over: T-425

4 MI SE BELLEFONTE, Centre, PA

Built 1973 Load: 53.5 t ADT: 8,478

VALLEY FORGE ROAD

Good

Over: NORFOLK SOUTHERN

NXT. BAPTIST CHURCH 24G4, Chester, PA

Built 1998 Load: 53.5 t ADT: 12,014

MILL ROAD

Good

Over: ROARING CREEK

2.7 M. SE OF SLABTOWN, Columbia, PA

Built 1985 Load: 53.5 t ADT: 267

T-664; TOWER RD

Good

Over: I-81 NB; SR 0081

2 MI. S. US 11 & 15, Cumberland, PA

Built 1973 Load: 53.5 t ADT: 777

SR 2006 WATTSBURG

Good

Over: OVER FRENCH CREEK

WATERFORD TOWNSHIP, Erie, PA

Built 1967 Load: 53.5 t ADT: 497

SR 2018 LOVELL RD

Good

Over: OVER SLAUGHTERS RUN

CONCORD TOWNSHIP, Erie, PA

Built 1984 Load: 53.5 t ADT: 471

SR 0040

Good

Over: SR 2025

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 53.5 t ADT: 5,601

WORKMAN ROAD

Good

Over: BIG SANDY CREEK

200 East of SR2003, Fayette, PA

Built 1991 Load: 53.5 t ADT: 305

PA 442

Good

Over: LITTLE MUNCY CREEK

4 MI E OF CLARKSTOWN, Lycoming, PA

Built 1994 Load: 53.5 t ADT: 3,289

SR 0015

Good

Over: OVER T-663

4.0 MI.N.OF WILLIAMSPORT, Lycoming, PA

Built 1993 Load: 53.5 t ADT: 9,450

SR 346-PA 346

Good

Over: KANSAS BR KNAPP CREEK

DUKE CENTER, McKean, PA

Built 1996 Load: 53.5 t ADT: 1,076

SR 18 NEW CASTLE R

Good

Over: OVER POWELL RUN

SHENANGO TOWNSHIP, Mercer, PA

Built 1990 Load: 53.5 t ADT: 3,179

SR 1011 CRPNTRS.CR

Good

Over: OVER CLARK RUN

NEW VERNON TOWNSHIP, Mercer, PA

Built 1909 Load: 53.5 t ADT: 431

BRIDGE 910 T-614

Good

Over: OVER LT.SHENANGO RIVER

HENRY RD OTTER CREEK TWP., Mercer, PA

Built 1963 Load: 53.5 t ADT: 755

PERKIOMEN AVENUE

Good

Over: MACOBY CREEK

GREEN LANE 2917E6, Montgomery, PA

Built 1994 Load: 53.5 t ADT: 12,284

RAMP B (NB)

Good

Over: GERMANTOWN PIKE/3368E03

SOUTH TPK.EXIT 25, Montgomery, PA

Built 1989 Load: 53.5 t ADT: 13,552

PA 850; SR 0850

Good

Over: FISHING RUN

3 MI. E. OF SHERMANSDALE, Perry, PA

Built 1962 Load: 53.5 t ADT: 1,548

Showing 19,301-19,350 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.