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

West Brady Street

Good

Over: Sullivan Run

West Brady Street @ Hayes, Butler, PA

Built 2022 Load: 49.9 t ADT: 2,900

SR 2047 (LR 663)

Good

Over: MONOCACY CREEK

MAIN ST.IN MONOCACY, Berks, PA

Built 1932 Load: 50.2 t ADT: 4,558

Athena Dr (SR1034)

Good

Over: Beaver Run

Salem Township, Westmoreland, PA

Built 2015 Load: 50.2 t ADT: 401

PITTSBURGH ST EXT

Good

Over: MOUNTS CREEK

CONNELLSVILLE CITY & TWP., Fayette, PA

Built 2018 Load: 50.2 t ADT: 1,989

Seven Valleys Rd

Good

Over: CENTERVILLE CREEK

1 MI NW OF GLEN ROCK, York, PA

Built 2018 Load: 50.2 t ADT: 1,607

IMPERIAL-BURGTN RD

Good

Over: MONTOUR RUN NORTH FORK

MN01 INT W/LINCOLN HWY, Allegheny, PA

Built 1958 Load: 50.5 t ADT: 150

CALLENSBURG RD

Good

Over: Cherry Run

ELDER ROAD, Clarion, PA

Built 2017 Load: 50.5 t ADT: 306

MCCALMONT RD

Good

Over: CONNOQUENESSING CR

MCCALMONT NO.1, Butler, PA

Built 2017 Load: 50.5 t ADT: 1,101

SR 0217

Good

Over: STEWARTS RUN

0.4 Mi N SR 3015 Inter., Indiana, PA

Built 2017 Load: 50.5 t ADT: 829

BIGELOW BLVD

Good

Over: 7TH AVE

TR 380 W.B.OVER 7TH AVE, Allegheny, PA

Built 1960 Load: 50.8 t ADT: 11,131

BATTLE RIDGE RD

Good

Over: DOLPHIN RUN

539 NORTH OF SR 3026, Allegheny, PA

Built 1929 Load: 50.8 t ADT: 2,789

PA 869

Good

Over: DEEP HOLLOW RUN

PAVIA, Bedford, PA

Built 1999 Load: 50.8 t ADT: 555

SR 2031 (LR06087)

Good

Over: HAY CREEK

WHITE BEAR BRIDGE, Berks, PA

Built 1993 Load: 50.8 t ADT: 577

GEORGE ST

Good

Over: NORFOLK SOUTHERN RR

GEORGE ST.MUHLENBURG TWP., Berks, PA

Built 1991 Load: 50.8 t ADT: 2,000

PA 36/ PA 164

Good

Over: HALTER CREEK

VILLAGE OF MCKEE, Blair, PA

Built 1951 Load: 50.8 t ADT: 18,702

I-99 / US 220

Good

Over: PRIVATE ROAD

.2 MI.N.OF DUNCANSVILLE, Blair, PA

Built 1983 Load: 50.8 t ADT: 16,449

CR-101 Bedford St

Good

Over: POLECAT RUN

1 MI.N.OF CLAYSBURG, Blair, PA

Built 2005 Load: 50.8 t ADT: 822

OLD BRISTOL ROAD

Good

Over: NORFOLK SOUTHERN

HOLLAND NORTHAMP. 36B11, Bucks, PA

Built 1995 Load: 50.8 t ADT: 8,108

SR 3001

Good

Over: SPRING CREEK

3 MI SW BELLEFONTE, Centre, PA

Built 1995 Load: 50.8 t ADT: 677

MAIN PARK ROAD

Good

Over: BIG POE CREEK

POE VALLEY STATE PARK, Centre, PA

Built 1933 Load: 50.8 t ADT: 90

WHITE HORSE ROAD

Good

Over: CRUM CREEK

3 MI. SE MALVERN 34B2, Chester, PA

Built 1998 Load: 50.8 t ADT: 1,744

DILWORTHTOWN ROAD

Good

Over: CHESTER CREEK

THORBURY TWP;CHEYEY 41H12, Chester, PA

Built 1990 Load: 50.8 t ADT: 2,761

I 80

Good

Over: OVER FISHING CR AND T360

2 MILES E OF BUCKHORN, Columbia, PA

Built 1965 Load: 50.8 t ADT: 14,985

HARTZDALE DR

Good

Over: CEDAR RUN

1.8SW CAMP HILL @ AYCOCK, Cumberland, PA

Built 1975 Load: 50.8 t ADT: 7,000

BURGNER RD. T-457

Good

Over: CONODOGUINET CREEK

1.2 NE PLAINFIELD/CONODOG, Cumberland, PA

Built 1960 Load: 50.8 t ADT: 1,167

DAY USE AREA ROAD

Good

Over: DOUBLING GAP RUN

0.4 MI E OF SR 0233, Cumberland, PA

Built 1968 Load: 50.8 t ADT: 45

PA 443; SR 0443

Good

Over: FISHING CREEK

6 MI. N.E. FT.HUNTER, Dauphin, PA

Built 1995 Load: 50.8 t ADT: 1,556

STEEL ALLEY

Good

Over: BURD RUN

0.3 MI NE OF SR 230, Dauphin, PA

Built 1978 Load: 50.8 t ADT: 87

SR 79 NB

Good

Over: OVER SR 90 EB/WB

MCKEAN TOWNSHIP, Erie, PA

Built 1994 Load: 50.8 t ADT: 10,566

SR 90 WB

Good

Over: OVER ALLEGHENY RAILROAD

SUMMIT TOWNSHIP, Erie, PA

Built 1996 Load: 50.8 t ADT: 20,099

SR 2011 BRIDGE ST

Good

Over: OVER FRENCH CREEK S BR

UNION CITY BOROUGH, Erie, PA

Built 1985 Load: 50.8 t ADT: 895

SR 0040

Good

Over: STADIUM DRIVE

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 50.8 t ADT: 5,526

SR 0040

Good

Over: STADIUM DRIVE

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 50.8 t ADT: 5,601

PA TPK (I-76) EB

Good

Over: SR 4007(LR 29022);B-467A

WEST OF HUSTONTOWN, Fulton, PA

Built 2008 Load: 50.8 t ADT: 13,371

T504 MILL CRK HOLL

Good

Over: MILL CREEK

3.4 MI.S.SR1001, Huntingdon, PA

Built 1938 Load: 50.8 t ADT: 135

SR 1039

Good

Over: LACKAWANNA RIVER

CARBNDLE TP .1M S SR6 BUS, Lackawanna, PA

Built 1995 Load: 50.8 t ADT: 8,254

SR 2006 BLVD AVE

Good

Over: LACKAWANNA RIVER

THROOP BORO .1M N SR 2008, Lackawanna, PA

Built 1993 Load: 50.8 t ADT: 4,957

CHERRY HILL RD

Good

Over: PUDDLE DUCK CREEK

250 FT NORTH OF T-313, Lancaster, PA

Built 1996 Load: 50.8 t ADT: 50

SNAKE RUN ROAD

Good

Over: SNAKE RUN

1.4 MI N OF SR 0288, Lawrence, PA

Built 1937 Load: 50.8 t ADT: 86

PA TPK (I-376) EB

Good

Over: T-319

NEW BEAVER BOROUGH, Lawrence, PA

Built 1992 Load: 50.8 t ADT: 9,871

PA TPK (I-76)

Good

Over: T-306

NEAR OHIO LINE, Lawrence, PA

Built 2006 Load: 50.8 t ADT: 21,767

PA TURNPIKE (I-76)

Good

Over: BEAVER DAM RUN

WEST OF NEW BEAVER, Lawrence, PA

Built 2008 Load: 50.8 t ADT: 21,767

HOLLOW ROAD

Good

Over: LITTLE WAPWALLOPEN CREEK

1/2 MI SE OF SR 3008, Luzerne, PA

Built 1997 Load: 50.8 t ADT: 30

SR 4001

Good

Over: TRIB TO LITTLE PINE CR.

2.5 MI SW ENGLISH CENTER, Lycoming, PA

Built 1930 Load: 50.8 t ADT: 134

LITTLE BEAR ROAD

Good

Over: LITTLE BEAR CREEK

1.5 MI EAST OF SR 87, Lycoming, PA

Built 1996 Load: 50.8 t ADT: 15

SR 219-US 219

Good

Over: SHEPPARD RUN

CUSTER CITY, McKean, PA

Built 1992 Load: 50.8 t ADT: 8,702

BRIDGE 1601 T-762

Good

Over: OVER LITTLE SHENANGO

CANON RD. LAKE TOWNSHIP, Mercer, PA

Built 1997 Load: 50.8 t ADT: 978

SWEDELAND ROAD

Good

Over: P&W RR (SEPTA)

@ GULPH RD 3367E09, Montgomery, PA

Built 1997 Load: 50.8 t ADT: 3,361

SR 642

Good

Over: OVER MAHONING CR.

5 MI NE OF DANVILLE, Montour, PA

Built 1994 Load: 50.8 t ADT: 2,057

SR 642

Good

Over: OVER MAHONING CREEK

5 MI NE OF DANVILLE, Montour, PA

Built 1995 Load: 50.8 t ADT: 1,941

Showing 18,951-19,000 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.