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 504-PA 504

Fair

Over: WALLACE RUN

WINGATE, Centre, PA

Built 1925 Load: 48.1 t ADT: 3,806

SR 2006

Fair

Over: CEDAR RUN

LINDEN HALL, Centre, PA

Built 1930 Load: 48.1 t ADT: 813

T-435

Fair

Over: BALD EAGLE CREEK

0.2 MILE SE OF WINGATE, Centre, PA

Built 1990 Load: 48.1 t ADT: 25

POTTSTOWN PIKE

Fair

Over: W. CHESTER BYPASS (322)

NEAR WEST CHESTER 31K8, Chester, PA

Built 1955 Load: 48.1 t ADT: 15,691

WEST CHESTER BYPAS

Fair

Over: WEST CHESTER PIKE

EAST WEST CHESTER 32E09, Chester, PA

Built 1954 Load: 48.1 t ADT: 138,453

CREEK ROAD

Fair

Over: CULBERTSON RUN

NEAR DOWNINGTOWN 20A05, Chester, PA

Built 1968 Load: 48.1 t ADT: 1,803

BONDSVILLE ROAD

Fair

Over: VALLEY RUN CREEK

NEAR DOWNINGTOWN 30A3, Chester, PA

Built 1922 Load: 48.1 t ADT: 15,986

SWEDESFORD ROAD

Fair

Over: LITTLE VALLEY CREEK

NEAR PAOLI 23K5, Chester, PA

Built 1967 Load: 48.1 t ADT: 4,667

PHOENIXVILLE PIKE

Fair

Over: PA 100 BYPASS

2MI.N.WEST CHESTER 32C04, Chester, PA

Built 1968 Load: 48.1 t ADT: 10,299

POCOPSON ROAD

Fair

Over: POCOPSON CREEK

1 MI. S OF SR 926 40H9, Chester, PA

Built 1929 Load: 48.1 t ADT: 1,148

SOUTH WHITFORD RD.

Fair

Over: VALLEY CREEK

NEAR BUSINESS 30 21F12, Chester, PA

Built 1967 Load: 48.1 t ADT: 7,859

DELP ROAD

Fair

Over: LITTLE ELK CREEK

1.3 MI W SR472 ADC 3907H8, Chester, PA

Built 1930 Load: 48.1 t ADT: 450

SR0028

Fair

Over: LEISURE RUN

LEISURE RUN NO.1, Clarion, PA

Built 1922 Load: 48.1 t ADT: 5,276

SR0338

Fair

Over: TURKEY RUN

TURKEY CITY NO.1, Clarion, PA

Built 1990 Load: 48.1 t ADT: 271

SR 53-PA 53

Fair

Over: CLEARFIELD CREEK

MADERA, Clearfield, PA

Built 1990 Load: 48.1 t ADT: 2,363

SR 219-US 219

Fair

Over: PATCHIN RUN

PATCHINVILLE, Clearfield, PA

Built 1953 Load: 48.1 t ADT: 970

SR 219-US 219

Fair

Over: W BR SUSQUEHANNA RIVER

BURNSIDE BORO, Clearfield, PA

Built 1986 Load: 48.1 t ADT: 884

SR 2024

Fair

Over: W BR SUSQUEHANNA RIVER

2 MI E CURWENSVILLE, Clearfield, PA

Built 1989 Load: 48.1 t ADT: 1,060

SR 1016

Fair

Over: SR 220-US 220

AVIS BORO, Clinton, PA

Built 1974 Load: 48.1 t ADT: 3,826

SR 1014 JOHNSTOWN

Fair

Over: OVER ANDERSON RUN

ROCKDALE TOWNSHIP, Crawford, PA

Built 1989 Load: 48.1 t ADT: 350

T-878 BRITTON R.RD

Fair

Over: OVER BRITTON RUN

0.8 MI. N. BRITTON RUN, Crawford, PA

Built 1965 Load: 48.1 t ADT: 250

I-83; SR 0083

Fair

Over: SPRING CREEK

.5 MI.W.OF EISENH.INTERCH, Dauphin, PA

Built 1961 Load: 48.1 t ADT: 72,252

I-83 SB; SR 0083

Fair

Over: CRUMS MILL ROAD; T-432

1 MI.N. PROGRESS, Dauphin, PA

Built 1969 Load: 48.1 t ADT: 28,234

ORANGE T-601

Fair

Over: WICONISCO CREEK

W OF WMTWN BORO/WICONISCO, Dauphin, PA

Built 1987 Load: 48.1 t ADT: 200

CHESTER PIKE

Fair

Over: MUCKINIPATTUS CREEK

1MI.N.OF PA 420 3698 C08, Delaware, PA

Built 1925 Load: 48.1 t ADT: 17,619

GARRETT ROAD

Fair

Over: DARBY CR;PRIVATE DRIVE

SPRGFLD.TWP.LINE 35E01, Delaware, PA

Built 1959 Load: 48.1 t ADT: 15,453

VALLEY BROOK ROAD

Fair

Over: SEPTA (INACTIVE)/3695F10

CHESTER HEIGHTS 33A11, Delaware, PA

Built 1969 Load: 48.1 t ADT: 11,097

FORGE ROAD

Fair

Over: CHESTER CREEK

1.25 MI. N US-1 ADC 18-B7, Delaware, PA

Built 1968 Load: 48.1 t ADT: 1,546

SR 1001

Fair

Over: EAST BR CLARION RIVER

GLEN HAZEL, Elk, PA

Built 1977 Load: 48.1 t ADT: 481

SR 20 BUFFALO ROAD

Fair

Over: OVER FOURMILE CREEK

WESLEYVILLE BOROUGH, Erie, PA

Built 1930 Load: 48.1 t ADT: 12,344

T-534 HAMOT ROAD

Fair

Over: OVER SR 90 EB/WB

SUMMIT TOWNSHIP, Erie, PA

Built 1959 Load: 48.1 t ADT: 4,163

SR 90 EB

Fair

Over: OVER SR 8 WATTSBURG ROAD

MILL CREEK TOWNSHIP, Erie, PA

Built 1959 Load: 48.1 t ADT: 16,929

SR 90 EB

Fair

Over: OVER CSX RAILROAD

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 48.1 t ADT: 8,790

T-564 TRASK ROAD

Fair

Over: TROUT RUN

600 FT NORTH OF BAGDAD RD, Erie, PA

Built 1995 Load: 48.1 t ADT: 237

SR 0040

Fair

Over: SR 8008

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 48.1 t ADT: 10,847

SR 0119

Fair

Over: SR 0043

GEORGES TOWNSHIP, Fayette, PA

Built 1992 Load: 48.1 t ADT: 4,024

SR 0119

Fair

Over: WHITES RUN

CONNELLSVILLE & BULLSKIN, Fayette, PA

Built 1942 Load: 48.1 t ADT: 27,446

SR 3014

Fair

Over: MUDDY RUN

FAIRCHANCE BOROUGH, Fayette, PA

Built 1937 Load: 48.1 t ADT: 2,655

SR 4032

Fair

Over: REDSTONE CREEK

MENALLEN & FRANKLIN TWP., Fayette, PA

Built 1988 Load: 48.1 t ADT: 723

PA 641;Timmons Rd.

Fair

Over: W Br Conococheague Creek

1 mi. S.E. of Spring Run, Franklin, PA

Built 1991 Load: 48.1 t ADT: 2,499

SR4010;Commerce St

Fair

Over: Conococheague Creek

Chambersburg, Franklin, PA

Built 1990 Load: 48.1 t ADT: 3,596

KEEFER RD

Fair

Over: ROCKY SPRING BRANCH

0.7 MI NW OF SR 4010, Franklin, PA

Built 1998 Load: 48.1 t ADT: 250

T-420 KELLER RD

Fair

Over: CAMPBELL RUN

175 FT WEST OF SR 3013, Franklin, PA

Built 1997 Load: 48.1 t ADT: 200

WALTER AVENUE

Fair

Over: NORFOLK SOUTHERN RAILWAY

GREENCASTLE/NSRC, Franklin, PA

Built 1988 Load: 48.1 t ADT: 2,800

TOWNSHIP ROAD 711

Fair

Over: CROOKED RUN

DUNKARD TOWNSHIP, Greene, PA

Built 1962 Load: 48.1 t ADT: 50

PA 747

Fair

Over: HILL VALLEY CREEK

2.9 MILE SOUTH OF US 22, Huntingdon, PA

Built 1967 Load: 48.1 t ADT: 2,184

SR 4015

Fair

Over: WARRIORS MARK RUN

.25 M.W.FRANKLINVILLE, Huntingdon, PA

Built 1962 Load: 48.1 t ADT: 73

SR0119 NB

Fair

Over: SR0954

SULLIVAN NB, Indiana, PA

Built 1970 Load: 48.1 t ADT: 3,911

SR0217

Fair

Over: BLACKLICK CREEK

FLENNIKEN, Indiana, PA

Built 1953 Load: 48.1 t ADT: 1,421

SR 35-PA 35

Fair

Over: COCOLAMUS CREEK

COCOLAMUS, Juniata, PA

Built 1990 Load: 48.1 t ADT: 3,817

Showing 10,201-10,250 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.