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 4002(LR 06003)

Fair

Over: TRIB LITTLE SWATARA CK

FRYSTOWN, Berks, PA

Built 1963 Load: 30.8 t ADT: 1,514

SR 4011(LR 06017)

Fair

Over: NORTHKILL CREEK

SHARTLESVILLE ROAD, Berks, PA

Built 1966 Load: 30.8 t ADT: 1,582

SR 4021(LR 06163)

Fair

Over: IRISH CREEK

CENTERPORT ROAD, Berks, PA

Built 1948 Load: 30.8 t ADT: 679

READING CREST AVE.

Fair

Over: LAUREL RUN

NEAR TUCKERTON, Berks, PA

Built 1968 Load: 30.8 t ADT: 450

T-406 MILL ROAD

Fair

Over: BLAIR GAP RUN

1 MI.W.OF DUNCANSVILLE, Blair, PA

Built 1958 Load: 30.8 t ADT: 684

T-342 REBECCA FURN

Fair

Over: CLOVER CREEK

FREDERICKSBURG, Blair, PA

Built 1989 Load: 30.8 t ADT: 284

SR 8004(99N > 22W)

Fair

Over: I-99 / US 220

1 MI.W.OF HOLLIDAYSBURG, Blair, PA

Built 1983 Load: 30.8 t ADT: 2,892

SR 6

Fair

Over: SUGAR CREEK

2MI.W.OF BURLINGTON BORO., Bradford, PA

Built 1924 Load: 30.8 t ADT: 3,569

SR 1049

Fair

Over: RUSSELL RUN

VILLAGE OF WINDHAM, Bradford, PA

Built 1931 Load: 30.8 t ADT: 739

SR 3020

Fair

Over: BRANCH OF SUGAR CREEK

.25MI.SW OF OVERSHOT, Bradford, PA

Built 1974 Load: 30.8 t ADT: 214

NEW US-1 BY-PASS

Fair

Over: HIGHLAND AVENUE

WEST OF LANGHORNE 41J01, Bucks, PA

Built 1965 Load: 30.8 t ADT: 47,904

INTERSTATE 95 (SB)

Fair

Over: STATION AVENUE

1MI.N. ANDALUSIA 45G03, Bucks, PA

Built 1964 Load: 30.8 t ADT: 42,984

AFTON AVENUE WEST

Fair

Over: BROCK CREEK / 3151-E2

YARDLEY BOROUGH 33C11, Bucks, PA

Built 1961 Load: 30.8 t ADT: 6,253

NORTH EASTON ROAD

Fair

Over: PINE RUN

2MI.N.DOYLESTOWN 23A07, Bucks, PA

Built 1938 Load: 30.8 t ADT: 7,575

LINDENHURST ROAD

Fair

Over: CORE CREEK

NEWTOWN & YARDLEY 32F12, Bucks, PA

Built 1966 Load: 30.8 t ADT: 7,733

OLD DUBLIN PIKE

Fair

Over: TR 611 BY-PASS

NORTH DOYLESTOWN 22K09, Bucks, PA

Built 1973 Load: 30.8 t ADT: 6,611

APPLE ROAD

Fair

Over: BRANCH OF TOHICKON CREEK

.5MI.E.UNION AVE. 08F09, Bucks, PA

Built 1931 Load: 30.8 t ADT: 139

SMITH ROAD

Fair

Over: MILL CREEK

BUCKINGHAM TWP. 30G03, Bucks, PA

Built 1982 Load: 30.8 t ADT: 350

ATKINSON ROAD

Fair

Over: PIDCOCK CREEK

SOLEBURY TOWNSHIP 25D09, Bucks, PA

Built 1873 Load: 30.8 t ADT: 100

SPRUCE LANE

Fair

Over: EAST BR.PERKIOMEN CREEK

BEDMINSTER TWP. 15H05, Bucks, PA

Built 1980 Load: 30.8 t ADT: 100

SR0008

Fair

Over: BUTCHER RUN

SOUTH OF BUTLER, Butler, PA

Built 1933 Load: 30.8 t ADT: 20,514

SR0019

Fair

Over: BPRR & CONNOQUEN CR

ZELIENOPLE BORO, Butler, PA

Built 1989 Load: 30.8 t ADT: 10,024

SR0028

Fair

Over: SR2017

WEST OF FREEPORT, Butler, PA

Built 1970 Load: 30.8 t ADT: 8,801

SR0422

Fair

Over: SR 0356

WEST OF BUTLER, Butler, PA

Built 1962 Load: 30.8 t ADT: 17,671

SR1004

Fair

Over: TRIB TO BEAR CREEK

BRUIN BORO, Butler, PA

Built 1968 Load: 30.8 t ADT: 608

SR3007

Fair

Over: GLADE RUN

SOUTH OF BROWNSDALE, Butler, PA

Built 1989 Load: 30.8 t ADT: 2,266

SR3015

Fair

Over: BREAKNECK CREEK

JONES LANE, Butler, PA

Built 1959 Load: 30.8 t ADT: 7,398

T-301 POWELL ROAD

Fair

Over: PA TPK (I-76)

POWELL ROAD, Butler, PA

Built 1952 Load: 30.8 t ADT: 200

T-492 McFANN RD

Fair

Over: GLADE RUN

0.86 mi. W of S.R. 8 Int., Butler, PA

Built 2004 Load: 30.8 t ADT: 200

T-731 E. ELDORADO

Fair

Over: NORTH BRANCH BEAR CR

1.5 MI NW OF S.R. 0268, Butler, PA

Built 1997 Load: 30.8 t ADT: 100

US 22

Fair

Over: HOWELLS RUN

0.2 MILE EAST OF SR 2013, Cambria, PA

Built 1960 Load: 30.8 t ADT: 23,355

PA 164

Fair

Over: US 22

OVER TR 22 @ MUNSTER, Cambria, PA

Built 1981 Load: 30.8 t ADT: 3,515

PA 403 FERNDALE

Fair

Over: STONYCREEK RIVER

0.6 MI.S.SR 756 FERNDALE, Cambria, PA

Built 1937 Load: 30.8 t ADT: 6,555

PA 865

Fair

Over: ABANDONED RAILROAD

2.5 MI.N.OF BLAIR CO.LINE, Cambria, PA

Built 1971 Load: 30.8 t ADT: 1,640

SR 3026

Fair

Over: CLAPBOARD RUN

FRANKLIN BOROUGH, Cambria, PA

Built 1928 Load: 30.8 t ADT: 961

SR 3055 FRANKLIN S

Fair

Over: STONY CREEK RIVER

JOHNSTOWN, Cambria, PA

Built 1900 Load: 30.8 t ADT: 4,326

MINE PLACE STREET

Fair

Over: SOLOMON RUN

MINE PLACE ST. JOHNSTOWN, Cambria, PA

Built 1980 Load: 30.8 t ADT: 390

MESSENGER STREET

Fair

Over: SOLOMON RUN

DALE BORO.@ MESSENGER ST., Cambria, PA

Built 1987 Load: 30.8 t ADT: 500

SR 4004

Fair

Over: CLEAR CREEK

1 MI W LOCKWOOD, Cameron, PA

Built 1974 Load: 30.8 t ADT: 310

SR 2011

Fair

Over: PENNS CREEK

COBURN, Centre, PA

Built 1938 Load: 30.8 t ADT: 934

T-525 WOLFES GAP

Fair

Over: ELK CREEK

1160 FT SOUTH RTE 192 INT, Centre, PA

Built 1910 Load: 30.8 t ADT: 10

T-840 WEAVER AVE

Fair

Over: ELK CREEK

27 FT FROM INT OF SR 2011, Centre, PA

Built 1952 Load: 30.8 t ADT: 25

US-1 BYPASS (NB)

Fair

Over: W FRK E BR WHITE CLAY CR

NEAR AVONDALE 46D04, Chester, PA

Built 1965 Load: 30.8 t ADT: 20,194

US-1 BYPASS (SB)

Fair

Over: W FRK E BR WHITE CLAY CR

NEAR AVONDALE 46D04, Chester, PA

Built 1965 Load: 30.8 t ADT: 12,295

ROUTE 30 BY-PASS

Fair

Over: OLD MILL RD (T358) BUCK

N.OF COATESVILLE 27G05, Chester, PA

Built 1961 Load: 30.8 t ADT: 29,503

ROUTE 30 BY-PASS

Fair

Over: BEAVER CREEK

NEAR DOWNINGTOWN 30A1, Chester, PA

Built 1961 Load: 30.8 t ADT: 42,440

NEWPORT PIKE

Fair

Over: AMTRAK MAIN LINE E-W

ATGLEN 26H11, Chester, PA

Built 1954 Load: 30.8 t ADT: 11,427

WEST CHESTER BYPAS

Fair

Over: WESTTOWN ROAD

NEAR WEST CHESTER 32E11, Chester, PA

Built 1967 Load: 30.8 t ADT: 68,606

BRANDYWINE AVENUE

Fair

Over: MILL-RACE CREEK

< 1/2 MI. BOOT RD 30G4, Chester, PA

Built 1929 Load: 30.8 t ADT: 16,526

PIKELAND ROAD

Fair

Over: PIGEON CREEK

NEAR CHARLESTOWN 14E12, Chester, PA

Built 1943 Load: 30.8 t ADT: 636

Showing 3,251-3,300 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.