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 2007 MINK POND

Good

Over: TOMS CREEK

LEHMAN TWP 2 M N SR 2001, Pike, PA

Built 2011 Load: 37.9 t ADT: 397

PA TPK (I-76)

Good

Over: T-574

West of Gibsonia, Allegheny, PA

Built 2012 Load: 37.9 t ADT: 27,341

SR 2030

Good

Over: RESSER RUN

LOYALSOCKVILLE, Lycoming, PA

Built 2012 Load: 37.9 t ADT: 349

SR 1014

Good

Over: LITTLE JUNIATA RIVER

0.61 MILE W FROM PA 453, Blair, PA

Built 2012 Load: 37.9 t ADT: 55

SR 4002

Good

Over: TRIB OF CONEWAGO CREEK

1 MI.S.W. OF BIG MOUNT, York, PA

Built 2012 Load: 37.9 t ADT: 2,681

SR 1022

Good

Over: BULLARDS CREEK

ROME SPRINGS, Bradford, PA

Built 2012 Load: 37.9 t ADT: 1,370

SR 2064 (Arch St)

Good

Over: West Br Susquehanna Rvr

Arch St (Wmspt.) river br, Lycoming, PA

Built 2012 Load: 37.9 t ADT: 4,067

QUEBEC ROAD(T-345)

Good

Over: MILL RUN

NEAR MILL RUN SCHOOL ROAD, Fayette, PA

Built 2012 Load: 37.9 t ADT: 50

SR 2066

Good

Over: CARNAHAN RUN

0.1 mi. S SR2036 Intersec, Armstrong, PA

Built 2012 Load: 37.9 t ADT: 4,155

SR 1009

Good

Over: BRUSH RUN

250ft. S I-80 EB, Clarion, PA

Built 2012 Load: 37.9 t ADT: 476

SR 0422

Good

Over: LITTLE YELLOW CREEK

1.4 MI W SR 403 Intersec., Indiana, PA

Built 2012 Load: 37.9 t ADT: 5,931

SR 3023

Good

Over: QUITAPAHILLA CREEK

1 MI.S. OF CLEONA, Lebanon, PA

Built 2012 Load: 37.9 t ADT: 3,529

SR 35-PA 35

Good

Over: JUNIATA RIVER

MIFFLIN, Juniata, PA

Built 2012 Load: 37.9 t ADT: 6,497

PA 611 (LR 498)

Good

Over: I-80 & MCMICHAEL CREEK

SOUTH 7TH.ST.STROUDSBURG, Monroe, PA

Built 2012 Load: 37.9 t ADT: 5,296

SR 4022 (LR 53057)

Good

Over: MAHANOY CREEK

VILLAGE OF HELFENSTEIN, Schuylkill, PA

Built 2012 Load: 37.9 t ADT: 162

EASTON ROAD

Good

Over: GALLOWS RUN

KINTNERSVILLE 2584B01, Bucks, PA

Built 2013 Load: 37.9 t ADT: 3,593

SR 3025

Good

Over: LT CONNOQUEN CR

1 Mi N SR 3027 Inter., Butler, PA

Built 2013 Load: 37.9 t ADT: 279

SR 2030(LR 776)

Good

Over: SR 2028(LR 166)

DEL.WATER GAP INT PA 611, Monroe, PA

Built 2013 Load: 37.9 t ADT: 2,363

SR 0188

Good

Over: Laurel Run

0.4 mi E from SR 0019, Greene, PA

Built 2013 Load: 37.9 t ADT: 4,152

SR 0085

Good

Over: TRIB TO COWANSHANNOCK CR

0.8 MI E SR 839 INTER., Armstrong, PA

Built 2013 Load: 37.9 t ADT: 2,353

SR 49-PA 49

Good

Over: DODGE HOLLOW RUN

ELMER, Potter, PA

Built 2013 Load: 37.9 t ADT: 1,802

T535 McAuley Falls

Good

Over: SOUTH FORK PINE CREEK

1.3 Mi. NW of SR28, Armstrong, PA

Built 2013 Load: 37.9 t ADT: 50

SR 4015

Good

Over: HOMERS GAP RUN

ORNERS CORNER, Blair, PA

Built 2013 Load: 37.9 t ADT: 2,484

SR 1004

Good

Over: COVE CREEK

ASHCOM, Bedford, PA

Built 2013 Load: 37.9 t ADT: 594

DELAWARE ROAD

Good

Over: PENNA / DELAWARE CANAL

RIEGELSVILLE BORO. 2469K5, Bucks, PA

Built 2014 Load: 37.9 t ADT: 2,512

NEW US-1 BY-PASS

Good

Over: MAPLE AVENUE

.5 MI. W. I-95 3262E02, Bucks, PA

Built 2014 Load: 37.9 t ADT: 46,128

EAST POPLAR STREET

Good

Over: HARVEYS CREEK

WEST NANTICOKE, Luzerne, PA

Built 2014 Load: 37.9 t ADT: 536

PA TPK (I-76) EB

Good

Over: SR 4004 (LR 29025)

West of Hustontown, Fulton, PA

Built 2015 Load: 37.9 t ADT: 20,523

PA TPK (I-76) EB

Good

Over: SR 4004 (LR 29025)

West of Hustontown, Fulton, PA

Built 2015 Load: 37.9 t ADT: 20,523

SR 654

Good

Over: Mosquito Creek

Duboistown Borough, Lycoming, PA

Built 2015 Load: 37.9 t ADT: 5,129

US 11; SR 0011

Good

Over: Norfolk Southern RR

SR11 over NSRR, Cumberland, PA

Built 2015 Load: 37.9 t ADT: 16,599

SR 0467 SH

Good

Over: Rockwell Creek

Pike TWP .4M S SR 1013, Bradford, PA

Built 2015 Load: 37.9 t ADT: 982

Gap Road

Good

Over: White Deer Hole Cr

3 MI W of Elimsport, Lycoming, PA

Built 2015 Load: 37.9 t ADT: 243

SR 3002

Good

Over: MILLSTONE CREEK

LOLETA, Elk, PA

Built 2015 Load: 37.9 t ADT: 128

T726 NORTH MILL ST

Good

Over: SIXTEEN MILE CREEK

NORTH EAST TWP., Erie, PA

Built 2015 Load: 37.9 t ADT: 600

PA TPK (Ramp AB)

Good

Over: PA TPK (I-476)

Lansdale IC Ramp, Montgomery, PA

Built 2015 Load: 37.9 t ADT: 15,619

SR 2017

Good

Over: SR 0322

POTTERS MILLS, Centre, PA

Built 2015 Load: 37.9 t ADT: 407

W. Beaver St

Good

Over: Glade Run

Zelienople Boro, Butler, PA

Built 2016 Load: 37.9 t ADT: 4,867

SR 0438 TR 438

Good

Over: S BR TUNKHANNOCK CREEK

N ABINGTON TP 1.2M E TR 6, Lackawanna, PA

Built 2016 Load: 37.9 t ADT: 622

Sunset Dr (SR2034)

Good

Over: Br. Pike Run

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 2016 Load: 37.9 t ADT: 111

T304 Flintstone Cr

Good

Over: Flintstone Creek

Beans Cove, Bedford, PA

Built 2016 Load: 37.9 t ADT: 159

SR 0081 I-81 SB

Good

Over: SR 2020 JUMPER ROAD

PLAINS TWP OVER SR 2020, Luzerne, PA

Built 2016 Load: 37.9 t ADT: 25,947

SR 0081 I-81 NB

Good

Over: SR 2020 JUMPER ROAD

PLAINS TWP OVER SR 2020, Luzerne, PA

Built 2016 Load: 37.9 t ADT: 26,655

ON TSR 568

Good

Over: LAUREL RUN

JULIAN, Centre, PA

Built 2016 Load: 37.9 t ADT: 746

SR 2025

Good

Over: SR 0080 EB & WB

0.4 Mi N SR 322 Inter., Clarion, PA

Built 2016 Load: 37.9 t ADT: 204

SR 2004

Good

Over: Snake Run

SR2004 over Snake Run, Beaver, PA

Built 2018 Load: 37.9 t ADT: 6,489

SR 1005

Good

Over: LAUREL CREEK

MILROY, Mifflin, PA

Built 2016 Load: 37.9 t ADT: 694

SR3026;Elmerton Av

Good

Over: I-83; SR 0083 NB/SB

0.2 Mi N of Ex 50 (US-22), Dauphin, PA

Built 2016 Load: 37.9 t ADT: 3,789

PA 31

Good

Over: RAYSTOWN BR JUNIATA RIV

.25 MI EAST OF KEGG, Bedford, PA

Built 2016 Load: 37.9 t ADT: 1,206

Diamond Valley Rd

Good

Over: SHAVERS CREEK

0.25 MI NORTH OF SR 305, Huntingdon, PA

Built 2018 Load: 37.9 t ADT: 457

Showing 15,251-15,300 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.