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

PA 412 (LR 530)

Good

Over: PBNE

4TH STREET BRIDGE, Northampton, PA

Built 2001 Load: 43.5 t ADT: 23,570

PA 655

Good

Over: TR.SIDELING HILL CREEK

1 MI.N.FULTON COUNTY LINE, Huntingdon, PA

Built 2001 Load: 43.5 t ADT: 936

SR 3001

Good

Over: TYLERS RUN

VIOLET HILL, York, PA

Built 2001 Load: 43.5 t ADT: 7,579

T-528 NATIVE RD

Good

Over: BIG RUN

1.2 MILES S OF SR 2019, Jefferson, PA

Built 2001 Load: 43.5 t ADT: 40

SR 0168; TR 168

Good

Over: PA TURNPIKE(I-76);WB-112

NEAR NEW BEAVER, Lawrence, PA

Built 2002 Load: 43.5 t ADT: 960

MT JACKSON ROAD

Good

Over: NORFOLK & SOUTHERN RR

2252 N BEAVER CO. LINE, Lawrence, PA

Built 2002 Load: 43.5 t ADT: 895

SR 3002 CHERRY HIL

Good

Over: OVER CONNEAUT CREEK

CONNEAUT TOWNSHIP, Erie, PA

Built 2002 Load: 43.5 t ADT: 261

SR 99-I 99

Good

Over: PRISON ROAD E/VENTURE DR

1/2 MI N SR 150 INTERCHAN, Centre, PA

Built 2001 Load: 43.5 t ADT: 10,873

T-399 STAMEY HILL

Good

Over: W BR LITTLE ANTIETAM CRK

275 FT WEST OF SR 997, Franklin, PA

Built 2002 Load: 43.5 t ADT: 350

SR 147 FUTURE NB

Good

Over: OVER SR 254

BORO OF MILTON, Northumberland, PA

Built 2002 Load: 43.5 t ADT: 8,515

ANDERS ROAD

Good

Over: SKIPPACK CREEK

EV-BURG ST PK 3142H08, Montgomery, PA

Built 2003 Load: 43.5 t ADT: 1,230

PA TPK (TOLL 43)

Good

Over: W&LE RR

2 MI.S.OF MONONGAHELA INT, Washington, PA

Built 1999 Load: 43.5 t ADT: 5,533

PA TPK (TOLL 43)

Good

Over: W&LE RR

2 MI.S.OF MONONGAHELA INT, Washington, PA

Built 1999 Load: 43.5 t ADT: 5,633

SR 0706

Good

Over: WYALUSING CREEK

VILLAGE OF CAMPTOWN, Bradford, PA

Built 2003 Load: 43.5 t ADT: 2,081

SR 147

Good

Over: SR 45

0.5 MI E OF MONTANDON, Northumberland, PA

Built 2003 Load: 43.5 t ADT: 9,170

SR 15

Good

Over: NB OVER SR 2005

BORO. OF MANSFIELD, Tioga, PA

Built 2003 Load: 43.5 t ADT: 5,424

SR 79 S.B.

Good

Over: OVER BIKE TRAIL TR.FRENC

UNION TOWNSHIP, Crawford, PA

Built 2004 Load: 43.5 t ADT: 6,469

SR 322-US 322

Good

Over: SR 3042 / OLIVER RUN

2 MILE NORTH PORT MATILDA, Centre, PA

Built 2004 Load: 43.5 t ADT: 5,254

SR 80-I 80

Good

Over: R J CORMAN

.8 MI EAST OF EXIT 120, Clearfield, PA

Built 2004 Load: 43.5 t ADT: 10,964

SR 322-US 322

Good

Over: WILDLIFE UNDERPASS

2 MI N PORT MATILDA, Centre, PA

Built 2004 Load: 43.5 t ADT: 5,254

US 15 SR 0015

Good

Over: S.R. 2004 LISBURN RD.

US 15 OVER LISBURN RD, Cumberland, PA

Built 2004 Load: 43.5 t ADT: 31,622

SR 0442

Good

Over: OVER LITTLE MUNCY CR.

4 MILES EAST OF MUNCY, Lycoming, PA

Built 2005 Load: 43.5 t ADT: 3,289

SR 322-US 322 E.B.

Good

Over: ZENDT LANE

1 MI N PORT MATILDA EXIT, Centre, PA

Built 2005 Load: 43.5 t ADT: 5,254

TRUMBAUERSVILLE RD

Good

Over: BEAVER RUN

RICHLAND TOWNSHIP 13H03, Bucks, PA

Built 2005 Load: 43.5 t ADT: 5,129

New Holland Rd

Good

Over: Trib. Mill Creek

1 mi.S.New Holland, Lancaster, PA

Built 2006 Load: 43.5 t ADT: 4,001

SR 2004

Good

Over: CEDAR RUN

CEDAR SPRINGS, Clinton, PA

Built 2006 Load: 43.5 t ADT: 847

PA 116; SR 0116

Good

Over: TOMS CREEK

2 MILES S. OF FAIRFIELD, Adams, PA

Built 2006 Load: 43.5 t ADT: 4,076

SR2006

Good

Over: SR0422 EB&WB

MITCHELL HILL ROAD, Butler, PA

Built 2007 Load: 43.5 t ADT: 1,544

SR 0018

Good

Over: Br. of Browns Creek

1.1 MI NORTH OF SR 4029, Greene, PA

Built 2007 Load: 43.5 t ADT: 1,286

T-423 STATION RD

Good

Over: BENNETT BR SINNEMAHONING

500 FT SE OF SR 555, Elk, PA

Built 2007 Load: 43.5 t ADT: 600

SR 2004

Good

Over: DUCKS RUN

MACKEYVILLE, Clinton, PA

Built 2007 Load: 43.5 t ADT: 847

I-99 / US 220 SBL

Good

Over: SR 0350

1.07 MI NORTH OF EXIT 52, Blair, PA

Built 2006 Load: 43.5 t ADT: 6,583

SR 405

Good

Over: MUNCY CREEK

Inters. of TR 405 & 442, Lycoming, PA

Built 2007 Load: 43.5 t ADT: 14,967

US 22

Good

Over: BLAIR GAP RUN

0.56 MILE E. FROM SR 3012, Blair, PA

Built 2007 Load: 43.5 t ADT: 14,932

SR 0081

Good

Over: PA72; T-473; SWATARA CRK

2 miles North of Exit 90, Lebanon, PA

Built 2005 Load: 43.5 t ADT: 11,531

5TH AVENUE

Good

Over: CONEWANGO CREEK

CITY OF WARREN, Warren, PA

Built 2006 Load: 43.5 t ADT: 2,000

WHIPPOORWILL ROAD

Good

Over: LITTLE SANDY CREEK

NW OF POLK, Venango, PA

Built 2007 Load: 43.5 t ADT: 100

T-519 SPRING RD

Good

Over: BIG RUN

0.9 MILES W OF SR 2007, Jefferson, PA

Built 2008 Load: 43.5 t ADT: 58

Callowhill Road

Good

Over: North BR Neshaminy Creek

Peace Valley Park 21K12, Bucks, PA

Built 2005 Load: 43.5 t ADT: 2,554

SR 0381

Good

Over: MILL RUN

0.3 MI NORTH OF SR 1001, Fayette, PA

Built 2007 Load: 43.5 t ADT: 2,657

SR 4006 Cold spr.

Good

Over: PA TURNPIKE

4 MILES NW OF ROXBURY, Franklin, PA

Built 2007 Load: 43.5 t ADT: 559

SR 2011 BACHMNVILL

Good

Over: BRANCH OF SPRING CREEK

1 MI. E. HOCKERSVILLE, Dauphin, PA

Built 2007 Load: 43.5 t ADT: 1,880

T399 SPANGENBERG R

Good

Over: W. BR. WALLENPAUPACK CR.

.7 MILES EAST OF SR. 2003, Lackawanna, PA

Built 2008 Load: 43.5 t ADT: 75

T-336 Coon CreekRd

Good

Over: Raccoon Creek

East Hanover Township, Lebanon, PA

Built 2008 Load: 43.5 t ADT: 50

SR 0191

Good

Over: BIG BROOK

DYBERRY TP .1 M S OF 4019, Wayne, PA

Built 2008 Load: 43.5 t ADT: 2,828

York Road

Good

Over: Conewago Creek

0.5 Mi N of Andersontown, York, PA

Built 2009 Load: 43.5 t ADT: 1,360

PA PTK (I-576) WB

Good

Over: T-439 BALD KNOB ROAD

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 43.5 t ADT: 2,025

SR 1087

Good

Over: MINGO CREEK

0.2 MI S OF SR 0088, Washington, PA

Built 2009 Load: 43.5 t ADT: 1,936

SR 2005

Good

Over: CLOVER CREEK

.25 MI. N. OF HENRIETTA, Blair, PA

Built 2009 Load: 43.5 t ADT: 152

PA 26

Good

Over: BANK RUN

49 FEET SOUTH OF SR 1019, Bedford, PA

Built 2009 Load: 43.5 t ADT: 1,528

Showing 17,501-17,550 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.