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

PA TPK (I-76) WB

Good

Over: SR 4007(LR 29022)

WEST OF HUSTONTOWN, Fulton, PA

Built 2008 Load: 46.3 t ADT: 13,371

PA 305

Good

Over: GLOBE RUN

COTTAGE, Huntingdon, PA

Built 1999 Load: 46.3 t ADT: 1,257

STONE CREEK ROAD

Good

Over: STANDING STONE CREEK

3.5 MILES SE OF SR 1023, Huntingdon, PA

Built 1998 Load: 46.3 t ADT: 45

T-411 IOWA RD

Good

Over: SANDY LICK CREEK

1.2 MI SW OF US RTE 322, Jefferson, PA

Built 1993 Load: 46.3 t ADT: 80

CALLEN RUN ROAD

Good

Over: CALLEN RUN

600 FT SOUTH OF SR 949, Jefferson, PA

Built 1999 Load: 46.3 t ADT: 40

PA 772 Marietta Av

Good

Over: AMTRAK

Mount Joy Boro, Lancaster, PA

Built 1896 Load: 46.3 t ADT: 5,374

SR 0079 NB

Good

Over: JAMISON RUN

1/3 MI. N OF SR 1016, Lawrence, PA

Built 1963 Load: 46.3 t ADT: 9,497

MORAV PETERSBRG RD

Good

Over: SUGAR CREEK

206005 0.2 MI E/SR 3004, Lawrence, PA

Built 2007 Load: 46.3 t ADT: 300

SR 2015

Good

Over: OVER LITTLE MUNCY CREEK

LAIRDSVILLE, Lycoming, PA

Built 1995 Load: 46.3 t ADT: 313

SR 3027

Good

Over: OVER SR 220

PORTER TWP E JERSEY SHORE, Lycoming, PA

Built 1968 Load: 46.3 t ADT: 3,495

T-884

Good

Over: BIG BEAR CREEK

DUNWOODY CAMP, Lycoming, PA

Built 1990 Load: 46.3 t ADT: 30

SR 551 PULASKI RD.

Good

Over: OVER BUCHANAN RUN TRIB

SHENANGO TOWNSHIP, Mercer, PA

Built 1989 Load: 46.3 t ADT: 832

BRIDGE 3109 T-888

Good

Over: OVER WOLF CREEK BR.

TIE LINE RD PINE TOWNSHIP, Mercer, PA

Built 1964 Load: 46.3 t ADT: 152

T-379 DRY VALLEY

Good

Over: MEADOW CREEK

500 FT WEST T737, Mifflin, PA

Built 2002 Load: 46.3 t ADT: 396

CRUSHER ROAD

Good

Over: UNAMI CREEK

S GREEN LANE 2917E9, Montgomery, PA

Built 1993 Load: 46.3 t ADT: 965

SR 11

Good

Over: MAHONING CREEK

BOROUGH OF DANVILLE, Montour, PA

Built 1955 Load: 46.3 t ADT: 10,698

I-80 WB

Good

Over: OVER MAHONING CREEK

2 MI E OF DANVILLE EXIT, Montour, PA

Built 1963 Load: 46.3 t ADT: 13,961

SR 4004

Good

Over: CHILLISQUAQUE CREEK

1 MI N. WASHINGTONVILLE, Montour, PA

Built 1987 Load: 46.3 t ADT: 214

SR 2001

Good

Over: OVER LITTLE ROARING CR.

4.5 MI N OF ELYSBURG, Northumberland, PA

Built 1940 Load: 46.3 t ADT: 128

T-411 SHEEP LN RD

Good

Over: SCHWABEN CREEK

1 MI E OF RED CROSS, Northumberland, PA

Built 1913 Load: 46.3 t ADT: 50

SPRUCE ST

Good

Over: CARBON RUN

SHAMOKIN CITY SPRUCE ST., Northumberland, PA

Built 1992 Load: 46.3 t ADT: 4,100

NEW VALLEY RD

Good

Over: FISHING CREEK

1 W MARYSVILLE/FISHING CR, Perry, PA

Built 1989 Load: 46.3 t ADT: 350

SR 1003

Good

Over: CALIFORNIA CREEK

LOUCKS MILLS, Potter, PA

Built 1993 Load: 46.3 t ADT: 179

SR 1013

Good

Over: TURNER CREEK

WEST BINGHAM, Potter, PA

Built 1991 Load: 46.3 t ADT: 143

SR 35

Good

Over: TRIB TO MIDDLE CREEK

2 MI W OF SELINSGROVE, Snyder, PA

Built 1956 Load: 46.3 t ADT: 4,371

MOUNTAIN DALE RD

Good

Over: S BR MIDDLE CREEK

1 MI NE OF MCCLURE, Snyder, PA

Built 1952 Load: 46.3 t ADT: 915

SR 2047

Good

Over: MILLER RUN

.5 MI.S.OF MEYERSDALE, Somerset, PA

Built 1998 Load: 46.3 t ADT: 4,886

SR 154

Good

Over: OVER LOYALSOCK CR.

WORLDS END STATE PARK, Sullivan, PA

Built 1995 Load: 46.3 t ADT: 686

SR 1012

Good

Over: LITTLE LOYALSOCK CREEK

EAST OF DUSHORE, Sullivan, PA

Built 1953 Load: 46.3 t ADT: 259

SHANERBURG ROAD

Good

Over: SHANERBURG RUN

3/4 MI SOUTH OF SR 154, Sullivan, PA

Built 2005 Load: 46.3 t ADT: 20

SR 2021

Good

Over: E BRANCH TUNKHANNOCK CRK

LENOX TWP 148 W TR 374, Susquehanna, PA

Built 1965 Load: 46.3 t ADT: 516

T-789 CTY BR # 9

Good

Over: SEELY CREEK

1 MI N OF DAGGETT, Tioga, PA

Built 1989 Load: 46.3 t ADT: 20

I-80 EB

Good

Over: OVER SR 4001

7 MI W OF WHITE DEER, Union, PA

Built 1970 Load: 46.3 t ADT: 9,978

SR 1009

Good

Over: CHARTIERS CREEK

CHARTIERS TOWNSHIP, Washington, PA

Built 1964 Load: 46.3 t ADT: 7,896

BUTSKO ROAD

Good

Over: PIGEON CREEK

2500 NORTH OF SR 2023, Washington, PA

Built 1916 Load: 46.3 t ADT: 100

SR 0170 TR 170

Good

Over: WST BR LACKAWAXEN RIVER

MT PLSANT TP .2M N SR4025, Wayne, PA

Built 1998 Load: 46.3 t ADT: 495

BUCK ROAD

Good

Over: STARRUCCA CREEK

STARRUCCA BOROUGH, Wayne, PA

Built 1920 Load: 46.3 t ADT: 10

SR 1050

Good

Over: LOYALHANNA CREEK

LOYALHANNA TOWNSHIP, Westmoreland, PA

Built 1993 Load: 46.3 t ADT: 350

T-682

Good

Over: PA TPK (PA-66)

NEW STANTON BOROUGH, Westmoreland, PA

Built 1991 Load: 46.3 t ADT: 2,000

PA TPK (PA 66)

Good

Over: SR 4004 NFS RR

HEMPFIELD TWP, Westmoreland, PA

Built 1992 Load: 46.3 t ADT: 10,429

LASH RD TR 471

Good

Over: LITTLE SEWICKLEY CREEK

0.4 MI SW OF SR 3018, Westmoreland, PA

Built 2005 Load: 46.3 t ADT: 101

EAST PITTSBURGH ST

Good

Over: BEAVER RUN

250 WEST OF TR 612, Westmoreland, PA

Built 2008 Load: 46.3 t ADT: 1,000

T955 SLATEHILL RD

Good

Over: YELLOW BREECHES CREEK

YEL BR/@ROSSMOYNE/CUMB Y4, York, PA

Built 1899 Load: 46.3 t ADT: 1,581

BLYMIRE HOLLOW RD.

Good

Over: BLYMIRE CREEK

1S WINTERSTWN/BLYMIRE CR, York, PA

Built 1994 Load: 46.3 t ADT: 108

BARRENS CHURCH RD

Good

Over: DEAD CREEK

0.3 MI NORTH OF MT TOP RD, York, PA

Built 1990 Load: 46.3 t ADT: 100

PENNSYLVANIA AVE

Good

Over: WILLIS RUN

PENNA AV;WILLIS R;YORK CY, York, PA

Built 1957 Load: 46.3 t ADT: 7,859

SR 0006 TR 6 EB

Good

Over: E LACKAWANNA AVE EXIT 2

OLYPHANT BORO OV LACK AVE, Lackawanna, PA

Built 1996 Load: 46.3 t ADT: 13,210

SR 0006 TR 6 WB

Good

Over: SR 0247 TR 247 EXIT 3

JESSUP BORO OVER TR 247, Lackawanna, PA

Built 1996 Load: 46.3 t ADT: 13,833

PA 145

Good

Over: LEHIGH R.;NORFOLK SOUTHE

TREICHLERS BRIDGE, Northampton, PA

Built 1997 Load: 46.3 t ADT: 13,028

SR 504-PA 504

Good

Over: COLD STREAM

PHILIPSBURG, Centre, PA

Built 1997 Load: 46.3 t ADT: 558

Showing 18,151-18,200 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.