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 4008

Good

Over: DUNLAP CREEK

REDSTONE TOWNSHIP, Fayette, PA

Built 1962 Load: 42.4 t ADT: 1,782

SR 2013

Good

Over: OVER SHAMOKIN CREEK

WEIGH SCALES, Northumberland, PA

Built 1962 Load: 42.4 t ADT: 134

RIVER ROAD

Good

Over: DELAWARE CANAL

1/4 MI. E. US202 2813G10, Bucks, PA

Built 2011 Load: 42.4 t ADT: 3,045

SR 80 - I 80

Good

Over: SR 53

EXIT 133 KYLERTOWN INTER, Clearfield, PA

Built 2011 Load: 42.4 t ADT: 7,860

PA TPK (I-76)

Good

Over: SR 4052 LR 02225

East of Warrendale, Allegheny, PA

Built 2012 Load: 42.4 t ADT: 31,140

HARMONYVILLE ROAD

Good

Over: PINE CREEK

.5 MI E. PA 345 3136G1, Chester, PA

Built 2012 Load: 42.4 t ADT: 161

SR 2001

Good

Over: JACKS CREEK

MAITLAND, Mifflin, PA

Built 2012 Load: 42.4 t ADT: 971

Lingle Valley Road

Good

Over: Laurel Creek

900 ft west of old US 322, Mifflin, PA

Built 2012 Load: 42.4 t ADT: 100

SR 0070

Good

Over: SR 3014

4.6 mi E from SR 0031, Westmoreland, PA

Built 2013 Load: 42.4 t ADT: 13,635

SR 0070

Good

Over: SR 3014

4.6 mi E from SR 0031, Westmoreland, PA

Built 2013 Load: 42.4 t ADT: 13,543

PETERSBURG RD

Good

Over: OVER TRIB OF SUGAR CREEK

NEAR SR 551 INTERSECTION, Lawrence, PA

Built 2013 Load: 42.4 t ADT: 213

SR 4034

Good

Over: Pine Run

0.1 mi W from SR 0356, Westmoreland, PA

Built 2013 Load: 42.4 t ADT: 1,486

SR 0221

Good

Over: Buffalo Creek

2.2 mi N from SR 0040, Washington, PA

Built 2014 Load: 42.4 t ADT: 841

Preserve Rd

Good

Over: Mid Br Chillisquaque Crk

7MI NE OF WASHINGTONVILLE, Montour, PA

Built 2015 Load: 42.4 t ADT: 174

Catawissa Creek Rd

Good

Over: Catawissa Creek

Village of Zion Grove, Schuylkill, PA

Built 2015 Load: 42.4 t ADT: 383

SR 0819

Good

Over: SR 0119

0.1 mi N of SR 0119, Westmoreland, PA

Built 2016 Load: 42.4 t ADT: 9,880

SR 3001;OLD HBG RD

Good

Over: BERMUDIAN CREEK

2 MI.N. OF HEIDLERSBURG, Adams, PA

Built 2016 Load: 42.4 t ADT: 793

HYNDMAN RD (SR 96)

Good

Over: WOLF CAMP RUN

MADLEY, Bedford, PA

Built 2016 Load: 42.4 t ADT: 1,345

Kettle Rd (SR1013)

Good

Over: Sinking Spring

1.5 MI. NE. of Culp, Blair, PA

Built 2016 Load: 42.4 t ADT: 530

PURDY RD (SR 4003)

Good

Over: KINGS CREEK

HANOVER TOWNSHIP, Washington, PA

Built 2016 Load: 42.4 t ADT: 397

ELM STREET (SR 62)

Good

Over: Tubbs Run

TIONESTA BOROUGH, Forest, PA

Built 2018 Load: 42.4 t ADT: 1,581

Spring Grove Road

Good

Over: CONESTOGA RIVER

0.5 MI S OF UNION GROVE, Lancaster, PA

Built 2018 Load: 42.4 t ADT: 1,222

Derrick Road

Good

Over: Foster Brook

DERRICK CITY, McKean, PA

Built 2018 Load: 42.4 t ADT: 3,154

Canton St

Good

Over: Fall Brook

TROY BORO, Bradford, PA

Built 2018 Load: 42.4 t ADT: 5,990

Bower Hollow Road

Good

Over: Pine Creek

2 MI NE COBURN, Centre, PA

Built 2017 Load: 42.4 t ADT: 135

T-417 GARDNER RD

Good

Over: BEAVER RUN

1.0 MI NW OF OTTAWA, Montour, PA

Built 2017 Load: 42.4 t ADT: 41

SR 1012

Good

Over: PENN RUN

1 Mi NE SR 553 Inter., Indiana, PA

Built 2017 Load: 42.4 t ADT: 1,007

SR 3053

Good

Over: WEST BRANCH CODORUS CR

MENGES MILLS, York, PA

Built 2018 Load: 42.4 t ADT: 1,089

RAMP XY -GROSSTOWN

Good

Over: POTTSTOWN BYPASS

STOWE INTERCHANGE 3137K02, Montgomery, PA

Built 2019 Load: 42.4 t ADT: 339

Pittsfield Ave.

Good

Over: Blockhouse Run

200 SE OF LEWIS ALLEY, Beaver, PA

Built 2020 Load: 42.4 t ADT: 55

EASTON ROAD

Good

Over: COOKS CREEK

1MI.S.RIEGELSVILLE 04B02, Bucks, PA

Built 2020 Load: 42.4 t ADT: 4,777

Treaster Valley Rd

Good

Over: Treaster Run

Armagh Twp, Mifflin, PA

Built 2021 Load: 42.4 t ADT: 10

STONY RUN ROAD

Good

Over: PINE CREEK

900 FT S OF PINE CREEK RD, Centre, PA

Built 2021 Load: 42.4 t ADT: 25

SR 3010(LR 45053)

Good

Over: Pohopoco Creek

MILL POND ROAD, Monroe, PA

Built 2021 Load: 42.4 t ADT: 325

T-526 (CTY BR 1)

Good

Over: white deer hole creek

BRICKER MILL, Union, PA

Built 2021 Load: 42.4 t ADT: 76

SR0228

Good

Over: GLADE RUN

EAST OF MARS, Butler, PA

Built 2023 Load: 42.4 t ADT: 17,904

MONTGOMERY PARK RD

Good

Over: ADAMS CREEK

MONTGOMERY PARK, Lycoming, PA

Built 2023 Load: 42.4 t ADT: 10

RAYMOND SHAFER HW

Good

Over: PITT-IND RR ROBINSON RU

.25 MI.SOUTH OF EWING RD, Allegheny, PA

Built 1972 Load: 42.6 t ADT: 35,361

MCKNIGHT RD

Good

Over: PINE CREEK

1/2 MI. N.W. OF SR 4070, Allegheny, PA

Built 1953 Load: 42.6 t ADT: 20,372

PA TURNPIKE RAMP F

Good

Over: SR 1001 NB

ALLEGHENY VAL.INT. RAMP F, Allegheny, PA

Built 1952 Load: 42.6 t ADT: 33,531

FRANKFORT RD

Good

Over: SERVICE CREEK

750 SOUTH OF TWP.RD.482, Beaver, PA

Built 1989 Load: 42.6 t ADT: 2,409

BOCKTOWN RD

Good

Over: RACCOON CREEK

1/4 MI. E. OF TWP.RD. 530, Beaver, PA

Built 2003 Load: 42.6 t ADT: 3,035

ACHORTOWN RD

Good

Over: SR 0376 EB-WB

SR 4010 OVER SR 0060, Beaver, PA

Built 1973 Load: 42.6 t ADT: 378

SR 1032

Good

Over: POTTER CREEK

MARIA, Bedford, PA

Built 1965 Load: 42.6 t ADT: 70

SR 3009

Good

Over: TR.EVITTS CREEK

1 MI.E.OF CENTERVILLE, Bedford, PA

Built 1989 Load: 42.6 t ADT: 376

PA 36

Good

Over: HALTER CREEK

.25 MI.N.ROARING SPRING, Blair, PA

Built 1997 Load: 42.6 t ADT: 17,171

T401 CARLISLE LANE

Good

Over: I-99 / US 220

VILLAGE OF BELLMEADE, Blair, PA

Built 1992 Load: 42.6 t ADT: 450

US 6

Good

Over: TOMJACK CREEK

BURLINGTON BORO, Bradford, PA

Built 1988 Load: 42.6 t ADT: 3,391

SR 1029

Good

Over: BULLARDS CREEK

NORTH ROME, Bradford, PA

Built 1961 Load: 42.6 t ADT: 185

SR 1043

Good

Over: SPAULDING CREEK

2MI.N.OF SHESHEQUIN VIL., Bradford, PA

Built 1983 Load: 42.6 t ADT: 1,685

Showing 17,101-17,150 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.