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

Bakerstown Road

Good

Over: B&LE RR

@ INTERSECTION W/ SR 1013, Allegheny, PA

Built 2016 Load: 43.1 t ADT: 5,371

DISTRICT ROAD

Good

Over: RACCOON CREEK

0.3 MI EAST OF SR 233, Franklin, PA

Built 2016 Load: 43.1 t ADT: 10

County Line Rd

Good

Over: INDIAN CREEK

SALTLICK & DONEGAL TWPS., Fayette, PA

Built 2017 Load: 43.1 t ADT: 997

SR 666 D ZEIS HWY

Good

Over: Beaver Run

HICKORY TOWNSHIP, Forest, PA

Built 2018 Load: 43.1 t ADT: 179

SHIRKTOWN RD

Good

Over: CONESTOGA RIVER

1.5 MI SE CHURCHTOWN, Lancaster, PA

Built 2017 Load: 43.1 t ADT: 610

HALLOWING RUN ROAD

Good

Over: Hallowing Run

2.5 MI NW OF FISHERS FERR, Northumberland, PA

Built 2018 Load: 43.1 t ADT: 238

LISTONBURG RD

Good

Over: BECKET RUN

4 MI SE OF CONFLUENCE, Somerset, PA

Built 2017 Load: 43.1 t ADT: 1,368

HANCOCK HW SR 191

Good

Over: BIG BROOK CREEK

OREGON TWP 1.5M N SR 4019, Wayne, PA

Built 2018 Load: 43.1 t ADT: 2,214

Burnt House Rd

Good

Over: BOBS CREEK

0.2 MILE EAST OF PAVIA, Bedford, PA

Built 2017 Load: 43.1 t ADT: 555

Cottontown Rd

Good

Over: BEAVERDAM CREEK

0.7 MI SW OF SPROUL, Blair, PA

Built 2018 Load: 43.1 t ADT: 577

Clarence Rd

Good

Over: Little Sandy Run

CLARENCE, Centre, PA

Built 2017 Load: 43.1 t ADT: 636

SR 3020

Good

Over: TURKEY RUN

75Ft NW SR 338 Inter., Clarion, PA

Built 2017 Load: 43.1 t ADT: 51

Linden Rd

Good

Over: LT CHARTIERS CK

NORTH STRABANE TOWNSHIP, Washington, PA

Built 2018 Load: 43.1 t ADT: 1,794

T-488 YellowSpring

Good

Over: PA TPK (I-76)

WEST OF DEVAULT, Chester, PA

Built 2017 Load: 43.1 t ADT: 200

SR4001

Good

Over: Crooked Creek

0.3 mi N SR 422 Interse, Indiana, PA

Built 2019 Load: 43.1 t ADT: 1,874

SR 1011

Good

Over: MIX CREEK

3 MI N ELDRED, McKean, PA

Built 2023 Load: 43.1 t ADT: 1,916

KOERNERS RD

Good

Over: DEVILS HOLE CREEK

0.5 MI. NE INT OF T-561, Monroe, PA

Built 1956 Load: 43.4 t ADT: 125

SR 104

Good

Over: MAHANTANGO CREEK

JUNIATA-SNYDER CO LINE, Snyder, PA

Built 1930 Load: 43.4 t ADT: 2,742

Greenview Drive

Good

Over: McMichael Creek

0.75 NE of Hiawatha Lake, Monroe, PA

Built 2010 Load: 43.4 t ADT: 722

SR 0028

Good

Over: COWANSHANNOCK CREEK

500 ft N SR 85 Intersect., Armstrong, PA

Built 2012 Load: 43.4 t ADT: 7,673

SR 0228

Good

Over: BUFF & PITT RR

0.1 MI E SR 3015 INTER., Butler, PA

Built 2013 Load: 43.4 t ADT: 19,278

SR 1037

Good

Over: Trump Run

0.9 mi S from SR 0711, Fayette, PA

Built 2013 Load: 43.4 t ADT: 9,163

T-325 CTY BR #6

Good

Over: CHILLISQUAQUE CREEK

2.9 MI NW MOORESBURG, Montour, PA

Built 2014 Load: 43.4 t ADT: 27

SAW MILL RUN BLVD

Good

Over: WEYMAN RUN

250 SOUTHEAST OF SR 0088, Allegheny, PA

Built 2015 Load: 43.4 t ADT: 28,859

SR 0611 SH

Good

Over: Tobyhanna Creek

Tobyhanna, Monroe, PA

Built 2015 Load: 43.4 t ADT: 6,985

GRADYVILLE ROAD

Good

Over: HUNTER RUN

0.4 M. W of TR252 3586-F5, Delaware, PA

Built 2015 Load: 43.4 t ADT: 6,540

Peterson Rd PA390

Good

Over: Mill Creek

MOUNTAIN HOME, Monroe, PA

Built 2016 Load: 43.4 t ADT: 6,000

GEORGETOWN RD

Good

Over: Mill Creek

.5 MILE NORTH OF SR 168, Beaver, PA

Built 2016 Load: 43.4 t ADT: 761

SR 514 SH

Good

Over: N Br. Towanda Creek

2.5 MI. N. of W. Franklin, Bradford, PA

Built 2016 Load: 43.4 t ADT: 542

Spruce Run Rd

Good

Over: OVERFLOW OF SPRUCE RUN

2.5 MI W OF KELLY CROSSRD, Union, PA

Built 2016 Load: 43.4 t ADT: 797

Township Road 353

Good

Over: Roberts Run

SOUTH OF SPRAGGS, Greene, PA

Built 2016 Load: 43.4 t ADT: 250

Ewing Road

Good

Over: MIDDLE BR WHITE CLAY CRK

NEAR WEST GROVE 45F06, Chester, PA

Built 2018 Load: 43.4 t ADT: 492

MAIN STREET

Good

Over: GRAVEL RUN

WOODCOCK BOROUGH, Crawford, PA

Built 2017 Load: 43.4 t ADT: 2,429

PALMER RD(SR 3013)

Good

Over: MIDDLE RUN

GERMAN TOWNSHIP, Fayette, PA

Built 2017 Load: 43.4 t ADT: 192

Great Cove Road

Good

Over: TONOLOWAY CREEK

1 MI NORTH OF NEEDMORE, Fulton, PA

Built 2018 Load: 43.4 t ADT: 1,750

WILLIAM PENN HW

Good

Over: SR 0026

1 MI NW OF SR 3035, Huntingdon, PA

Built 2017 Load: 43.4 t ADT: 12,102

GRD ARMY OF RP HW

Good

Over: Mead Run

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2018 Load: 43.4 t ADT: 7,063

MT PLEASANT RD

Good

Over: SEWICKLEY CREEK

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 2018 Load: 43.4 t ADT: 5,614

East Pennview St.

Good

Over: Pine Creek

PI11 Pine Creek #11, Allegheny, PA

Built 2017 Load: 43.4 t ADT: 4,234

MCFARREN ST.

Good

Over: Nine Mile Run

094 MCFARREN ST BRIDGE, Allegheny, PA

Built 2020 Load: 43.4 t ADT: 150

West Main Street

Good

Over: NEWBURG RUN

NEWBURG, Cumberland, PA

Built 2018 Load: 43.4 t ADT: 1,356

US 209

Good

Over: READING/NORTHERN RR

0.25 MI. W. OF POTTSIVILL, Schuylkill, PA

Built 2018 Load: 43.4 t ADT: 16,267

Medix Grade Rd

Good

Over: Medix Run

Goshen Township, Clearfield, PA

Built 2017 Load: 43.4 t ADT: 100

PA 29/100(LR 158)

Good

Over: INDIAN CREEK

0.4 MI.S.OF SR 2025, Lehigh, PA

Built 2018 Load: 43.4 t ADT: 12,127

18TH STREET

Good

Over: VINE ST EXPWY (I-676)

18TH STREET 3590C07, Philadelphia, PA

Built 2018 Load: 43.4 t ADT: 1,651

SR 0084 I-84 EB

Good

Over: SR 0739 TR 739

BLOOMNG GRV TP OVR TR 739, Pike, PA

Built 2019 Load: 43.4 t ADT: 6,491

SR 0084 I-84 WB

Good

Over: SR 0739 TR 739

BLMG GROVE TWP OVR TR 739, Pike, PA

Built 2019 Load: 43.4 t ADT: 6,285

CONCHESTER HIGHWAY

Good

Over: SEPTA & WEBB CREEK

1MI.SE.CONCORDVILL 32E12, Delaware, PA

Built 2020 Load: 43.4 t ADT: 16,200

SR 2033

Good

Over: Soldier Run

210ft S SR 322 Intersect, Jefferson, PA

Built 2022 Load: 43.4 t ADT: 93

SUMNEYTOWN PIKE

Good

Over: EAST BR. PERKIOMEN CREEK

GREEN LANE 07J13, Montgomery, PA

Built 2020 Load: 43.4 t ADT: 10,515

Showing 17,351-17,400 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.