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

Springville Rd

Good

Over: INDIAN RUN

SPRINGVILLE, Lancaster, PA

Built 2018 Load: 37.9 t ADT: 869

PENNSYLVANIA AVE

Good

Over: SANDY RUN

SPRINGFIELD TWP. 31B07, Montgomery, PA

Built 2018 Load: 37.9 t ADT: 4,935

Berkleys Mill Rd

Good

Over: BLUE LICK CREEK

2 MI NE OF MEYERSDALE, Somerset, PA

Built 2017 Load: 37.9 t ADT: 191

IMPOUNDING DAM RD

Good

Over: S BR CONEWAGO CREEK

1 MILE SW OF SR 94, York, PA

Built 2018 Load: 37.9 t ADT: 817

LINCOLN HIGHWAY

Good

Over: QUEEN ANNE CREEK

BILLBOARD 38C08/3151E10, Bucks, PA

Built 2018 Load: 37.9 t ADT: 14,259

PA TPK (I-76)

Good

Over: LR22016 SR2003

Lower Swatara Twp., Dauphin, PA

Built 2016 Load: 37.9 t ADT: 24,423

SR 1003

Good

Over: SALT RUN

6 MI W OF PROCTOR, Lycoming, PA

Built 2017 Load: 37.9 t ADT: 233

PA 241; BAINBRIDGE

Good

Over: CONOY CREEK

1 MI. S.W. OF ETOWN, Lancaster, PA

Built 2017 Load: 37.9 t ADT: 5,595

Township RD 572

Good

Over: Whiteley Creek

Southwest of Kirby, Greene, PA

Built 2017 Load: 37.9 t ADT: 1

SR 2021

Good

Over: Dunkard Creek

0.7 mi S from SR 2025, Greene, PA

Built 1959 Load: 37.9 t ADT: 99

SR 1026 (LR 664)

Good

Over: PINE CREEK

NW of Bechtelsville, Berks, PA

Built 2018 Load: 37.9 t ADT: 316

SR 4033

Good

Over: PA TPK (I-76)

NEAR MURRYSVILLE, Westmoreland, PA

Built 2018 Load: 37.9 t ADT: 2,774

SR 0084 I-84 WB

Good

Over: MCCONNELL CREEK

BLMG GRVE TP .4M E TR 739, Pike, PA

Built 2019 Load: 37.9 t ADT: 6,285

SR 0084 I-84 EB

Good

Over: MCCONNELL CREEK

BLOMNG GRV TP .4M E TR739, Pike, PA

Built 2019 Load: 37.9 t ADT: 6,491

SR 1045 S.4TH ST.

Good

Over: COCALICO CREEK

DENVER BORO, Lancaster, PA

Built 2019 Load: 37.9 t ADT: 4,407

SR 78(LR 285 SP)

Good

Over: SR 1024 (Long Lane)

GRIMVILLE, Berks, PA

Built 2019 Load: 37.9 t ADT: 19,837

Fishing Creek Rd

Good

Over: Fishing Creek

DRUMORE, Lancaster, PA

Built 2019 Load: 37.9 t ADT: 429

SR 1015

Good

Over: TR THREE SPRINGS RUN

.5 M N OF NEW ENTERPRISE, Bedford, PA

Built 2019 Load: 37.9 t ADT: 160

ON TSR 248

Good

Over: MONTGOMERY CREEK

CLEARFIELD, Clearfield, PA

Built 2019 Load: 37.9 t ADT: 559

T509 Amadei Road

Good

Over: North.Br.Blacklick Creek

2.7 MI.SW.OF NICKTOWN, Cambria, PA

Built 2019 Load: 37.9 t ADT: 115

T-428 Milford Rd

Good

Over: PA TPK (I-76)

West of Devault, Chester, PA

Built 1950 Load: 37.9 t ADT: 530

DELAWARE EXPWAY.

Good

Over: LEHIGH; CONRAIL;SOMERSET

LEHIGH;SOMMERSET 3591A04, Philadelphia, PA

Built 2019 Load: 37.9 t ADT: 147,295

PA 924 (LR161)

Good

Over: R&N RR Mahanoy CK 4030

MAIZEVILLE, Schuylkill, PA

Built 2020 Load: 37.9 t ADT: 10,767

DOWNINGTOWN PIKE

Good

Over: E. BR. BRANDYWINE CREEK

WEST BRADFORD TWP. 31A9, Chester, PA

Built 2020 Load: 37.9 t ADT: 12,126

Gordon Street

Good

Over: Jordan Creek

Between 3rd & 4th, Lehigh, PA

Built 2020 Load: 37.9 t ADT: 5,751

SR 2030

Good

Over: Beaver Creek

1/2 MI. S. LINGLESTOWN, Dauphin, PA

Built 2020 Load: 37.9 t ADT: 2,847

SM PICNIC AREA RD

Good

Over: SWIFT RUN

1 MI WEST OF SHORT MTN RD, Snyder, PA

Built 2020 Load: 37.9 t ADT: 50

SR 2079

Good

Over: UNT to N Br Muddy Creek

Felton 3 mi S of PA 24, York, PA

Built 2023 Load: 37.9 t ADT: 1,356

PA TPK 0576

Good

Over: SR 0980 and Tributary

Cecil Township, Washington, PA

Built 2020 Load: 37.9 t ADT: 9,330

SR 61 (LR 160)

Good

Over: I-78

HAMBURG BOROUGH, Berks, PA

Built 2021 Load: 37.9 t ADT: 22,048

T-893 Rohlers Chur

Good

Over: Trib Conewago Creek

3E ROSSVILLE/TR.CONEWG CR, York, PA

Built 2021 Load: 37.9 t ADT: 467

SR 1015

Good

Over: Conewago Creek

0.5 MI NW NEW CHESTER, Adams, PA

Built 2023 Load: 37.9 t ADT: 2,137

SR 4015(WOPSNK AV)

Good

Over: SPRING RUN

0.24 MI. N. FROM SR 4017, Blair, PA

Built 2023 Load: 37.9 t ADT: 2,339

WILLOW BROOK ROAD

Good

Over: TRIB TO CATASAUQUA CR

WILLOW BROOK RD. BRIDGE, Lehigh, PA

Built 2021 Load: 37.9 t ADT: 316

FORBES AVENUE

Good

Over: FERN HOLLOW CREEK

301033 NEAR S BRADDOCK AV, Allegheny, PA

Built 2022 Load: 37.9 t ADT: 15,000

T-346 HAAG RD

Good

Over: STUMP CREEK

0.3 MI SOUTH OF SR 4003, Clearfield, PA

Built 2022 Load: 37.9 t ADT: 50

Straight Creek Rd

Good

Over: Billy Buck Run

Elk State Forest, Elk, PA

Built 2022 Load: 37.9 t ADT: 10

SR 0070

Good

Over: Branch of Sewickley Ck.

SEWICKLEY & HEMPFIELD TWP, Westmoreland, PA

Built 2022 Load: 37.9 t ADT: 27,178

T-625

Good

Over: West Branch Murray Run

0.1 Mi. East of Calvert, Lycoming, PA

Built 2022 Load: 37.9 t ADT: 50

SR 0345 LR15144

Good

Over: PA TPK (I-76)

E. of Morgantown Int., Chester, PA

Built 2022 Load: 37.9 t ADT: 2,575

T-571

Good

Over: Marsh Run

Logue Hill Road 2, Lycoming, PA

Built 2023 Load: 37.9 t ADT: 30

PA 394; SR 0394

Good

Over: ROCK CREEK

2 3/4 MI.N.W. HUNTERSTOWN, Adams, PA

Built 1991 Load: 38.1 t ADT: 4,750

CHESTNUT ST

Good

Over: PA 28 EB&WB RAMP H EB

131 Chestnut St. Bridge, Allegheny, PA

Built 1988 Load: 38.1 t ADT: 5,000

EVERGREEN RD

Good

Over: GIRTYS RUN

200 SOUTH OF SR 4004, Allegheny, PA

Built 1982 Load: 38.1 t ADT: 11,257

RAMP EP-E RD

Good

Over: RAMP DP-E BAGGAGE BRDGS

OPA107 APO1 AIRPORT 5-1, Allegheny, PA

Built 1992 Load: 38.1 t ADT: 4,601

SR 8095 (RAMP B)

Good

Over: SR 8041 (RAMP B)

Smithfield St Bridge, Allegheny, PA

Built 1956 Load: 38.1 t ADT: 4,896

SR 2011

Good

Over: W BR SIDELING HILL CREEK

PURCELL, Bedford, PA

Built 1957 Load: 38.1 t ADT: 111

SR 14

Good

Over: OVER CANAAN RUN

0.6 MI N. OF GILLETTE, Bradford, PA

Built 1989 Load: 38.1 t ADT: 1,523

SR 3035

Good

Over: SUGAR CREEK

W BURLINGTON TWP, Bradford, PA

Built 1984 Load: 38.1 t ADT: 119

SR 1019

Good

Over: SWARTZ RUN

1.5 MI.N.OF ASHVILLE, Cambria, PA

Built 1988 Load: 38.1 t ADT: 653

Showing 15,301-15,350 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.