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 1008

Good

Over: FURNACE RUN

FRANKILN TWP, Fayette, PA

Built 2000 Load: 44.5 t ADT: 174

HAGY LANE

Good

Over: US 22/322 NS RAILROAD

WEST OF DAUPHIN, Dauphin, PA

Built 1999 Load: 44.5 t ADT: 192

PA 271 PHOEBE CRT

Good

Over: LITTLE CONEMAUGH RIVER

1.5 MI N OF SR 3044, Cambria, PA

Built 2001 Load: 44.5 t ADT: 4,756

SR 5 EAST LAKE RD.

Good

Over: OVER ELLIOTTS CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 2001 Load: 44.5 t ADT: 6,173

US 30 WB; SR 0030

Good

Over: PA 501; LITTZ PK; LOOP C

US 30 WB OVER PA 501, Lancaster, PA

Built 2000 Load: 44.5 t ADT: 67,734

STATE ROAD

Good

Over: BIG ELK CREEK

3 MI TO LEWISVILLE 52G8, Chester, PA

Built 2001 Load: 44.5 t ADT: 955

SR 1003

Good

Over: PAINT CREEK

WINDBER, Somerset, PA

Built 2001 Load: 44.5 t ADT: 2,299

SR3033 MABON ST

Good

Over: SANDY LICK CREEK

MABON STREET, Jefferson, PA

Built 2002 Load: 44.5 t ADT: 1,765

T-822 HOOVER ROAD

Good

Over: SCRUBGRASS CREEK

200 feet south of T-632, Armstrong, PA

Built 2002 Load: 44.5 t ADT: 105

SR 0040

Good

Over: CHARTIERS CREEK

N. FRANKLIN & CANTON TWP., Washington, PA

Built 2002 Load: 44.5 t ADT: 14,470

SR 3013

Good

Over: PURSLEY CREEK

CENTER TOWNSHIP, Greene, PA

Built 2002 Load: 44.5 t ADT: 351

SIX MILE ROAD

Good

Over: SIX MILE RUN

3 MI SOUTH OF SR 504, Centre, PA

Built 1997 Load: 44.5 t ADT: 20

SR 219-US 219

Good

Over: SR 4002

2 MILES SOUTH OF BRADFORD, McKean, PA

Built 2003 Load: 44.5 t ADT: 9,362

T-371 CTY BDG 114

Good

Over: LARRYS CREEK

0.5 MI SSW OF LARRYVILLE, Lycoming, PA

Built 2003 Load: 44.5 t ADT: 100

T-430 NEW HOPE RD

Good

Over: MCMURRAY RUN

1 MI NE OF BOVARD, Butler, PA

Built 2002 Load: 44.5 t ADT: 100

TUCKERTON RD

Good

Over: RDG BL MT & NORTHERN RR

TUCKERTON RD, Berks, PA

Built 2003 Load: 44.5 t ADT: 2,000

SR 15 SOUTHBOUND

Good

Over: SR 2022

3 MILE N. COVINGTON, Tioga, PA

Built 2004 Load: 44.5 t ADT: 5,663

SR 15 NORTHBOUND

Good

Over: SR 2022

3 MILE N. OF COVINGTON, Tioga, PA

Built 2004 Load: 44.5 t ADT: 6,178

US 222; Walnut St

Good

Over: Mill Creek

Lyndon in W. Lampeter, Lancaster, PA

Built 2004 Load: 44.5 t ADT: 16,479

SR3020 GRINGS HILL

Good

Over: US 222

GRINGS HILL OVER SR222, Berks, PA

Built 2004 Load: 44.5 t ADT: 1,293

SR 99 I-99

Good

Over: SR 550-PA 550

4 MI SOUTH STATE COLLEGE, Centre, PA

Built 2004 Load: 44.5 t ADT: 10,995

T-782 (CTY BR#109

Good

Over: ZIMMERMAN CREEK

0.05 MI. NORTH OF TEXAS, Lycoming, PA

Built 2004 Load: 44.5 t ADT: 106

T-686

Good

Over: ROCK RUN

1.5 MI. NNE OF GLEN MAWR, Lycoming, PA

Built 2004 Load: 44.5 t ADT: 50

ON TSR 347

Good

Over: BIG FISHING CREEK

BOONEVILLE, Clinton, PA

Built 2005 Load: 44.5 t ADT: 275

EVANS HILL ROAD

Good

Over: CACOOSING CREEK

2000 SW OF SR 2033/REEDY, Berks, PA

Built 2005 Load: 44.5 t ADT: 1,078

SR 1005

Good

Over: ABANDON RR & KISHAC CR.

YEAGERTOWN, Mifflin, PA

Built 2005 Load: 44.5 t ADT: 5,997

SR 80-I 80

Good

Over: SR 879-PA 879

EXIT 120 CLEARFIELD INTER, Clearfield, PA

Built 2005 Load: 44.5 t ADT: 9,900

SR 2008

Good

Over: OVER MAPLE CREEK

BARNETT TOWNSHIP, Forest, PA

Built 2005 Load: 44.5 t ADT: 30

SR 3007

Good

Over: GEORGES CREEK

GEORGES TWP., Fayette, PA

Built 2005 Load: 44.5 t ADT: 1,218

SR0119 NB&SB

Good

Over: BLACKLICK CREEK

BLACKLICK NO. 1, Indiana, PA

Built 2005 Load: 44.5 t ADT: 11,493

PA TPK (I-576)

Good

Over: SR 60 RAMPS C MT-B KL

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 44.5 t ADT: 2,025

SR 1056

Good

Over: Susquehanna River

0.1 mi. east of Athens, Bradford, PA

Built 2006 Load: 44.5 t ADT: 4,210

MADISON AVENUE

Good

Over: PA 309 EXPRESSWAY

FORT WASH. 30K4/3257H8, Montgomery, PA

Built 2006 Load: 44.5 t ADT: 356

SR 61

Good

Over: Shamokin C. & SEDA-COG R

City of Shamokin, Northumberland, PA

Built 2007 Load: 44.5 t ADT: 12,234

I-99 / US 220 NBL

Good

Over: SR 4041

0.7 MI S OF BALD EAGLE, Blair, PA

Built 2006 Load: 44.5 t ADT: 6,883

T-414 ST JOHN RD

Good

Over: HALLSTON RUN

0.3 mi S of SR 1010, Butler, PA

Built 2007 Load: 44.5 t ADT: 100

T-456 SHAPIRO RD

Good

Over: CLEARFIELD CREEK

CRESSON LAKE, Cambria, PA

Built 2007 Load: 44.5 t ADT: 71

Mosside Blvd

Good

Over: NORFOLKSOUTH TURTLE CRK

W of Pitcarin@SR 130 Int, Allegheny, PA

Built 2007 Load: 44.5 t ADT: 8,021

SR 1001

Good

Over: JACKSON RUN

FARMINGTON TOWNSHIP, Warren, PA

Built 2007 Load: 44.5 t ADT: 471

T301 PINE GROVE RD

Good

Over: POND CREEK

THORNHURST TP .5 M W 2013, Lackawanna, PA

Built 2007 Load: 44.5 t ADT: 100

CHERRY RUN ROAD

Good

Over: CHERRY RUN

800 FT SW OLD MINGLE RD, Centre, PA

Built 2007 Load: 44.5 t ADT: 15

SR 442

Good

Over: WEST BRANCH RUN

1.5 Mi. N. of Iola, Columbia, PA

Built 2008 Load: 44.5 t ADT: 1,683

US 15 NB

Good

Over: SR 4022 & COWANESQUE RIV

BORO OF LAWRENCEVILLE, Tioga, PA

Built 2008 Load: 44.5 t ADT: 4,180

SR 184

Good

Over: SR 15 NB/SB

Steam Valley, Lycoming, PA

Built 2008 Load: 44.5 t ADT: 1,202

GIBSONIA ROAD

Good

Over: PA TURNPIKE

OVER PA TURNPIKE, Allegheny, PA

Built 2008 Load: 44.5 t ADT: 9,379

PA TPK (I-576)

Good

Over: T-439 BALD KNOB ROAD

FINDLAY TWP, Allegheny, PA

Built 2006 Load: 44.5 t ADT: 2,025

BRUNNERDALE ROAD

Good

Over: OGDONIA CREEK

SE OF OGDONIA, Sullivan, PA

Built 2004 Load: 44.5 t ADT: 10

SR 2025

Good

Over: GARRETTS RUN

GARRETTS RUN No. 1, Armstrong, PA

Built 2009 Load: 44.5 t ADT: 629

SR 2019

Good

Over: LAUREL RUN

6 MI SW LOCK HAVEN, Clinton, PA

Built 2009 Load: 44.5 t ADT: 360

SR 4010

Good

Over: SR 0043 (Turnpike)

East of SR 0040, Fayette, PA

Built 2008 Load: 44.5 t ADT: 1,583

Showing 17,751-17,800 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.