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

T-463 MALONEY HILL

Fair

Over: TUNKHANNOCK CREEK

3.7 MILES SW OF LENOX, Susquehanna, PA

Built 1989 Load: 44.5 t ADT: 50

SR 1003

Fair

Over: MILL CREEK

4 MI N OF MANSFIELD, Tioga, PA

Built 1974 Load: 44.5 t ADT: 1,168

SR 1007

Fair

Over: OVER ELK RUN

4.5 MI SW OF ROSEVILLE, Tioga, PA

Built 1988 Load: 44.5 t ADT: 158

T-780 JACKSON TWP

Fair

Over: BR OF ALDER RUN

2.5 MI NE JACKSON SUMMIT, Tioga, PA

Built 1973 Load: 44.5 t ADT: 75

T-952 JACKSON TWP

Fair

Over: SEELY CREEK

VILLAGE OF DAGGETT, Tioga, PA

Built 1988 Load: 44.5 t ADT: 100

T-701 BEAR CREEK R

Fair

Over: BEAR CREEK

1.6 MI NW OF TIOGA BORO, Tioga, PA

Built 1983 Load: 44.5 t ADT: 75

SR 80 WB

Fair

Over: SR 38

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1965 Load: 44.5 t ADT: 10,140

STONE SPRNGHOUSE

Fair

Over: PRATHER CREEK

CHERRY TREE TOWNSHIP, Venango, PA

Built 1993 Load: 44.5 t ADT: 200

T-512 SLAB FURNACE

Fair

Over: OVER EAST SANDY CREEK

ROCKLAND TOWNSHIP, Venango, PA

Built 1992 Load: 44.5 t ADT: 100

SR 2006 CHAPMAN RD

Fair

Over: OVER ELKHORN RUN

PLEASANT TOWNSHIP, Warren, PA

Built 1953 Load: 44.5 t ADT: 296

SR 0070

Fair

Over: RAILROAD STREET (T-907)

DONEGAL TOWNSHIP, Washington, PA

Built 1960 Load: 44.5 t ADT: 14,819

SR 0070

Fair

Over: RAILROAD STREET (T-907)

DONEGAL TOWNSHIP, Washington, PA

Built 1960 Load: 44.5 t ADT: 13,818

SR 0070

Fair

Over: SR 0221

BUFFALO TOWNSHIP, Washington, PA

Built 1960 Load: 44.5 t ADT: 14,819

SR 0481

Fair

Over: LITTLE PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1959 Load: 44.5 t ADT: 2,084

SR 1041

Fair

Over: BRANCH OF CHARTIERS CK.

S. STRABANE & N. STRABANE, Washington, PA

Built 1968 Load: 44.5 t ADT: 11,041

SR 1077

Fair

Over: MON 0837 0906 2 R/R

DONORA-MONESSEN BRIDGE, Washington, PA

Built 1972 Load: 44.5 t ADT: 11,024

SR 0022

Fair

Over: COUNTY ROAD

MUNICIPAL OF MURRYSVILLE, Westmoreland, PA

Built 1949 Load: 44.5 t ADT: 34,027

SR 1020

Fair

Over: SAXMAN RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1961 Load: 44.5 t ADT: 5,172

SR 3039

Fair

Over: SEWICKLEY CREEK

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1988 Load: 44.5 t ADT: 2,418

T-662 MCFARLAND RD

Fair

Over: LOYALHANNA CREEK

AT LONGS RD INTERSECT, Westmoreland, PA

Built 1958 Load: 44.5 t ADT: 825

PLEASANT VIEW RD

Fair

Over: BEAVER RUN STREAM

2.5 MI E NO. WASHINGTON, Westmoreland, PA

Built 1925 Load: 44.5 t ADT: 100

OLD WILLIAM PENN H

Fair

Over: TURTLE CREEK

NEAR EXPORT BORO LINE, Westmoreland, PA

Built 1984 Load: 44.5 t ADT: 10,000

SR 2002

Fair

Over: MILL CREEK

EXETER TWP .4 M W TR 292, Wyoming, PA

Built 1930 Load: 44.5 t ADT: 629

US 30; SR 0030

Fair

Over: SR 1014

.2 MI N OF LR128, York, PA

Built 1970 Load: 44.5 t ADT: 23,734

US 30; loucks rd.

Fair

Over: SR 1014

.2 MI N OF LR128, York, PA

Built 1970 Load: 44.5 t ADT: 23,016

ISLAND AVENUE

Fair

Over: SEPTA;FRONTAGE ROAD

AIRPORT HIGH SPEED3699B07, Philadelphia, PA

Built 1985 Load: 44.5 t ADT: 35,163

MOUNT AIRY AVENUE

Fair

Over: SEPTA;CHESTNUT HILL BR.

.3MI.NE.GERMANTOWN3369K10, Philadelphia, PA

Built 1939 Load: 44.5 t ADT: 6,394

FDR Park West Dr.

Fair

Over: FDR Park Lake

NW of Center Drive 37C08, Philadelphia, PA

Built 1915 Load: 44.5 t ADT: 300

FDR Park West Dr.

Fair

Over: Hollander Creek

S of Bridge 350 37C09, Philadelphia, PA

Built 1915 Load: 44.5 t ADT: 300

RP C;E TO S;S TO W

Fair

Over: EARTH FILL N.OF SOUTH ST

S. STREET INTERCH.3589K09, Philadelphia, PA

Built 1958 Load: 44.5 t ADT: 13,246

BRIDGE ST.

Fair

Over: MAHANOY CREEK

BORO OF GILBERTON, Schuylkill, PA

Built 1997 Load: 44.5 t ADT: 20

MCCARTNEY RD

Fair

Over: SLIPPERY ROCK CRK TRIB

037026 LOC IN PERRY TWP, Lawrence, PA

Built 1998 Load: 44.5 t ADT: 100

SR3039

Fair

Over: FIVEMILE RUN

FIVEMILE SWAMP, Jefferson, PA

Built 1998 Load: 44.5 t ADT: 347

US 219 SBL

Fair

Over: CASSELMAN R & CSX RR

I.5 MI.N OF MEYERSDALE, Somerset, PA

Built 1998 Load: 44.5 t ADT: 1,896

SR 1009 (LR48049)

Fair

Over: US 22(LR 772)9402/9406

SCHOENERSVILLE ROAD, Lehigh, PA

Built 1998 Load: 44.5 t ADT: 20,522

I 79

Fair

Over: SR 1010 BIKE TRAIL

CECIL TWP, Washington, PA

Built 1998 Load: 44.5 t ADT: 45,914

SR 4009;Loudon Rd.

Fair

Over: Wilson Run

3 Mi. N.E. of St. Thomas, Franklin, PA

Built 1999 Load: 44.5 t ADT: 919

RAMP J(SR 8042)

Fair

Over: US 222

RAMP J OVER WARREN ST., Berks, PA

Built 1999 Load: 44.5 t ADT: 12,126

GRANDVIEW AVENUE

Fair

Over: SHENANGO RIVER TRIBUTARY

214001 1 BLK S OF OAKWOOD, Lawrence, PA

Built 1998 Load: 44.5 t ADT: 1,000

SR 1030

Fair

Over: Norfolk Sothern Railroad

DONORA BOROUGH, Washington, PA

Built 1998 Load: 44.5 t ADT: 1,313

PA 441; SR 0441

Fair

Over: SPRING CREEK

1.3 MI N OF STEELTON, Dauphin, PA

Built 1999 Load: 44.5 t ADT: 8,119

SR 1017

Fair

Over: TUNKHANNOCK CREEK

NICHOLSON BO 328 S TR 92, Wyoming, PA

Built 2000 Load: 44.5 t ADT: 335

SR2025

Fair

Over: GARRETTS RUN

GARRETTS RUN NO 4, Armstrong, PA

Built 2000 Load: 44.5 t ADT: 549

COONEY HOLLOW ROAD

Fair

Over: TRIB BIG SEWICKLEY CREEK

400 EAST OF HOENIG RD, Beaver, PA

Built 1950 Load: 44.5 t ADT: 10

MOUNT JACKSON ROAD

Fair

Over: MAHONING RIVER

150 FT NW OF SR 0018, Lawrence, PA

Built 2001 Load: 44.5 t ADT: 4,423

HODGSON RD (T-599)

Fair

Over: PAINTERS RUN

004056 .25 MI N. T-601, Beaver, PA

Built 2002 Load: 44.5 t ADT: 85

SR 99-I 99

Fair

Over: SEDA-COG/NIT&BALD EGL RR

1 MILE WEST PORT MATILDA, Centre, PA

Built 2006 Load: 44.5 t ADT: 6,583

MACDADE BOULEVARD

Fair

Over: DARBY CREEK

.1MIN.N.SPRINGFIELD 36A05, Delaware, PA

Built 2007 Load: 44.5 t ADT: 21,374

Gregg Station Rd

Fair

Over: Robinson Run

Collier Twp, Allegheny, PA

Built 2008 Load: 44.5 t ADT: 500

KELLERS CHURCH RD.

Fair

Over: DEEP RUN

BEDMINSTER TWP. 2810B05, Bucks, PA

Built 2009 Load: 44.5 t ADT: 638

Showing 9,251-9,300 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.