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 6 GRAND ARMY HY

Good

Over: OVER CONNEAUT LAKE OUTLT

SADSBURY TOWNSHIP, Crawford, PA

Built 1959 Load: 42.8 t ADT: 12,247

ASTON MILLS ROAD

Good

Over: WEST BR.CHESTER CREEK

ASTON MILLS 33D13, Delaware, PA

Built 1965 Load: 42.8 t ADT: 5,477

PA 995; Welsh Run

Good

Over: W BR CONOCOCHEAQUE CREEK

1 MI N W WELSH RUN, Franklin, PA

Built 1955 Load: 42.8 t ADT: 1,007

PA 611(LR168)

Good

Over: POCONO CREEK

BARTONSVILLE, Monroe, PA

Built 1957 Load: 42.8 t ADT: 19,688

T-608 (Oakes Lane)

Good

Over: Warrior Run

0.1 MI.N.OF INT.PA44 T608, Northumberland, PA

Built 2015 Load: 42.8 t ADT: 100

OLD FORGE ROAD

Good

Over: MILL CREEK

N.OF SR 443 NR.LEB.CO.LN., Schuylkill, PA

Built 1972 Load: 42.8 t ADT: 200

RIVER DRIVE

Good

Over: PINE CREEK

W.BRNSWCK TWP RCKLEDGE RD, Schuylkill, PA

Built 1983 Load: 42.8 t ADT: 25

T-816 CRUMB ROAD

Good

Over: ROARING FORK

3.7 MI.SE.OF WINDBER, Somerset, PA

Built 1940 Load: 42.8 t ADT: 50

SR 0225

Good

Over: SCHWABEN CREEK

1 MILE NORTH OF RED CROSS, Northumberland, PA

Built 2010 Load: 42.8 t ADT: 2,659

PA 349

Good

Over: MILL CREEK

SABINSVILLE, Tioga, PA

Built 2010 Load: 42.8 t ADT: 1,406

PA TPK (TOLL 43)

Good

Over: T-601 Telegraph Rd

Exit 26 Interchange, Fayette, PA

Built 2011 Load: 42.8 t ADT: 2,000

SR 80 - I 80

Good

Over: SR 53 - PA 53

EXIT 133 KYLERTOWN INTER, Clearfield, PA

Built 2012 Load: 42.8 t ADT: 7,584

SR 0286

Good

Over: BLACKLEGS CREEK

1.4 mi N SR981 Intersec, Indiana, PA

Built 2012 Load: 42.8 t ADT: 2,768

SR 872-PA 872

Good

Over: MILL CREEK

COUDERSPORT BORO, Potter, PA

Built 2013 Load: 42.8 t ADT: 1,892

MUNICIPAL ROAD

Good

Over: PINE CREEK

0.2 MILE E of RT. 61, Schuylkill, PA

Built 2014 Load: 42.8 t ADT: 300

SR 1018

Good

Over: MIDDLE BRANCH GENESEE R

1 MI S GENESEE, Potter, PA

Built 2014 Load: 42.8 t ADT: 396

I-81NB (LR1005)

Good

Over: READING/NORTHERN RR

0.4MI.N.OF EXIT 134(38), Schuylkill, PA

Built 2014 Load: 42.8 t ADT: 11,529

SR 1033

Good

Over: DUBOIS CREEK

HALLSTEAD BO .2M N SR1037, Susquehanna, PA

Built 2014 Load: 42.8 t ADT: 1,990

Ridge Rd (SR4016)

Good

Over: MAHANTANGO CREEK

VILLAGE OF KLINGERSTOWN, Schuylkill, PA

Built 2015 Load: 42.8 t ADT: 819

Salem Schoolhouse

Good

Over: Little Muncy Creek

2.5 MI E of LAIRDSVILLE, Lycoming, PA

Built 2015 Load: 42.8 t ADT: 93

SR 0422 EB

Good

Over: SR 0954

Intersect. of SR 422 & SR, Indiana, PA

Built 2015 Load: 42.8 t ADT: 4,058

SR 0706 SH

Good

Over: Cold Creek

2 MI. NE. of Camptown, Bradford, PA

Built 2015 Load: 42.8 t ADT: 2,092

ALT 220

Good

Over: SUNNYSIDE HOLLOW RUN

1 MI E PORT MATILDA, Centre, PA

Built 2016 Load: 42.8 t ADT: 3,400

SPRING VALLEY RD

Good

Over: DANIELS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 2016 Load: 42.8 t ADT: 190

FAIRFIELD ROAD

Good

Over: MUDDY RUN

1 MI NE OF FAIRFIELD, Adams, PA

Built 2016 Load: 42.8 t ADT: 3,987

SR4045 (Northkill)

Good

Over: I-78 (LR 141)

Northkill Rd over I-78, Berks, PA

Built 2017 Load: 42.8 t ADT: 491

Lincoln Highway

Good

Over: ESHELMANS RUN

0.3 MI EAST LEAMAN PLACE, Lancaster, PA

Built 2018 Load: 42.8 t ADT: 13,755

SOUTH MAIN ST

Good

Over: BESSEMER HAUL ROAD

1/4 MI. SOUTH OF SR 0317, Lawrence, PA

Built 2017 Load: 42.8 t ADT: 601

Cherry Run Rd

Good

Over: Tributary to Cherry Run

BURRELL TWP-E OF BRICK CH, Armstrong, PA

Built 2018 Load: 42.8 t ADT: 239

KNOXLYN RD

Good

Over: LITTLE MARSH CREEK

KNOXLYN, Adams, PA

Built 2017 Load: 42.8 t ADT: 604

RCKLAND CRNBERY RD

Good

Over: East Sandy Creek

CRANBERRY TOWNSHIP, Venango, PA

Built 2018 Load: 42.8 t ADT: 1,842

LONE PINE RD

Good

Over: LITTLE TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 2017 Load: 42.8 t ADT: 1,400

T-342

Good

Over: Owens Run

North of Nebo, Greene, PA

Built 2017 Load: 42.8 t ADT: 1

US 22; A-TOWN BLVD

Good

Over: ELIZABETH RUN

1 MI.E.OF FREDRICKSBURG, Lebanon, PA

Built 2017 Load: 42.8 t ADT: 8,259

T-667 CTY BR #137

Good

Over: RAVEN CREEK

2.1 MI. SE. OF BENTON, Columbia, PA

Built 2020 Load: 42.8 t ADT: 54

PA TPK (I-76)

Good

Over: Norfolk Southern RR

LOWER ALLEN TWP, Cumberland, PA

Built 2019 Load: 42.8 t ADT: 25,229

UPPER CAMELS ROAD

Good

Over: Middle Branch Mill Creek

8 MI NW OF SR 87, Sullivan, PA

Built 2019 Load: 42.8 t ADT: 10

T-466 E.SPRING RD.

Good

Over: Carr Run

ON EAST SPRING RD. T-466, Crawford, PA

Built 2020 Load: 42.8 t ADT: 250

SR 0084 I-84 WB

Good

Over: SR 0507 TR 507

GREENE TWP OVER TR 507, Pike, PA

Built 2021 Load: 42.8 t ADT: 7,331

SR 0084 I-84 EB

Good

Over: SR 507

GREENE TWP OVER TR 507, Pike, PA

Built 2022 Load: 42.8 t ADT: 7,355

CLOVERLEAF RD

Good

Over: Little Chiques Creek

1 MI NE OF SR 4014, Lancaster, PA

Built 2022 Load: 42.8 t ADT: 439

I-176(LR 1011)

Good

Over: US 422(LR 793)

US422 JCT (I-176), Berks, PA

Built 1962 Load: 43.1 t ADT: 17,014

SR 2017

Good

Over: SR 2021

JENKINS TWP OVER SR 2021, Luzerne, PA

Built 1960 Load: 43.1 t ADT: 3,883

SR 0088

Good

Over: Mingo Creek

1.1 mi N from SR 0837, Washington, PA

Built 2011 Load: 43.1 t ADT: 2,269

JACK DENT ROAD

Good

Over: MEDIX RUN

GOSHEN TOWNSHIP, Clearfield, PA

Built 2013 Load: 43.1 t ADT: 100

SR 0949

Good

Over: CLEAR CREEK

4 Mi. N SR 36 Intersec., Jefferson, PA

Built 2014 Load: 43.1 t ADT: 284

HOLLOW ROAD

Good

Over: LITTLE WAPWALLOPEN CREEK

3/4 MI S. OF GEORGES RD., Luzerne, PA

Built 2014 Load: 43.1 t ADT: 15

SR 0481

Good

Over: Pigeon Creek

1.4 mi S from SR 0088, Washington, PA

Built 2015 Load: 43.1 t ADT: 1,614

Big Valley Pike

Good

Over: SADDLERS CREEK

FOUSETOWN, Huntingdon, PA

Built 2017 Load: 43.1 t ADT: 2,184

LINCOLN HWY

Good

Over: SHAWNEE BRANCH

2.3 MI.W.OF SHELLSBURG, Bedford, PA

Built 2016 Load: 43.1 t ADT: 2,236

Showing 17,301-17,350 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.