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

LIBERTY ST

Good

Over: HICKORY RUN

250NORTH OF TWP RD 394, Lawrence, PA

Built 1960 Load: 70.8 t ADT: 3,686

US 15

Good

Over: US 15 OVER BOTTLE RUN

OLD LYCOMING TOWNSHIP, Lycoming, PA

Built 1989 Load: 70.8 t ADT: 16,879

SR 8 R C FRAME HWY

Good

Over: OVER T-370 SANDY CREEK

VICTORY TOWNSHIP, Venango, PA

Built 1975 Load: 70.8 t ADT: 2,786

SR 4003

Good

Over: BRUSH CREEK

HEMPFIELD & PENN TOWNSHIP, Westmoreland, PA

Built 1997 Load: 70.8 t ADT: 2,244

SR 0084 I-84 WB

Good

Over: RAMPS ELN LN-1 TO TR 6

DUNMORE BORO OVER SR 8024, Lackawanna, PA

Built 1999 Load: 70.8 t ADT: 23,266

PA TPK (TOLL 43)

Good

Over: T-345 (CHESS RD)

3 MI. SOUTH OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 70.8 t ADT: 1,000

PA TPK (TOLL 43)

Good

Over: T-345 (CHESS RD)

3 MI. SOUTH OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 70.8 t ADT: 1,000

SR 244-PA 244

Good

Over: WEST BR GENESEE RIVER

1 MILE SOUTH OF GENESEE, Potter, PA

Built 2004 Load: 70.8 t ADT: 217

SR2015

Good

Over: LITTLE BUFFALO CREEK

MONROE ROAD, Butler, PA

Built 2005 Load: 70.8 t ADT: 439

T443 CHAMPLIN HOL

Good

Over: KING RUN

1100 SE OF KINGS RUN RD, McKean, PA

Built 2007 Load: 70.8 t ADT: 70

SR 0819

Good

Over: Sherrick Run

0.1 mi S from SR 0119, Westmoreland, PA

Built 2016 Load: 71.3 t ADT: 9,880

PA TPK (I-476)

Good

Over: SR 4018 & Trout Creek

Emerald W. of Slatington, Lehigh, PA

Built 2016 Load: 71.3 t ADT: 25,000

DARLINGTON ROAD

Good

Over: PA TURNPIKE (376 EB-WB)

0.6 MI E OF SR 0051, Beaver, PA

Built 1992 Load: 71.7 t ADT: 8,530

SR 4011

Good

Over: OVER TOMJACK CREEK

1 M. S. OF E. SMITHFIELD, Bradford, PA

Built 1946 Load: 71.7 t ADT: 576

T530 MOSS CREEK RD

Good

Over: LONG RUN

.25 MI.N.OF MARSTELLER, Cambria, PA

Built 1937 Load: 71.7 t ADT: 308

SR 2010 FRANKLIN

Good

Over: OVER POWDER MILL RUN

WAYNE TOWNSHIP, Crawford, PA

Built 1992 Load: 71.7 t ADT: 210

MID-COUNTY EXWY.SB

Good

Over: LANCASTER AVE / 3477-D5

LANCASTER AVE.INT. 14H10, Delaware, PA

Built 1990 Load: 71.7 t ADT: 41,310

SR 3005

Good

Over: OVER NICHOLS RUN

1.5 MI N OF JERSEY SHORE, Lycoming, PA

Built 1932 Load: 71.7 t ADT: 570

T-608

Good

Over: CALLAHAN RUN

0.35 MI NW OFJERSEY MILLS, Lycoming, PA

Built 1992 Load: 71.7 t ADT: 21

I676(EB)CONNECTION

Good

Over: FOURTH STREET

VINE ST.INTERCH. 3590G07, Philadelphia, PA

Built 1989 Load: 71.7 t ADT: 67,510

T-618 Flanagan Rd

Good

Over: TULPEHOCKEN CREEK

TULPEHOCKEN/IE MYERSTOWN, Lebanon, PA

Built 2009 Load: 71.7 t ADT: 100

T-680 LOCUST ROAD

Good

Over: DIXON RUN

100 FT EAST OF SR403 INT, Indiana, PA

Built 2011 Load: 71.7 t ADT: 200

CHESTNUT STREET

Good

Over: CSX RAILROAD

1MI.W.CITY HALL 3590B08, Philadelphia, PA

Built 1901 Load: 72.3 t ADT: 8,190

PA TPK (I-376)

Good

Over: PA TPK (I-376)

BIG BEAVER BORO, Beaver, PA

Built 1992 Load: 72.6 t ADT: 9,871

SR 4019

Good

Over: SUGAR CREEK

VILLAGE OF AUSTINVILLE, Bradford, PA

Built 1948 Load: 72.6 t ADT: 473

RIVER ROAD

Good

Over: DELAWARE CANAL

UPPER BLACK EDDY 05D04, Bucks, PA

Built 1932 Load: 72.6 t ADT: 2,160

SR 1022 DOWNEY FER

Good

Over: OVER MUDDY CREEK

ATHENS TOWNSHIP, Crawford, PA

Built 1907 Load: 72.6 t ADT: 469

SR 8003; RAMP B

Good

Over: I-81; SR 0081

INTER I81 & US22, Dauphin, PA

Built 1977 Load: 72.6 t ADT: 5,729

MID-COUNTY EXWY.NB

Good

Over: BROWNS RUN ;ACCESS ROAD

NEAR VILLANOVA 14H09, Delaware, PA

Built 1990 Load: 72.6 t ADT: 45,310

SR 90 WB

Good

Over: OVER SR 531 DEPOT RD

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1959 Load: 72.6 t ADT: 12,954

SR 2005 MARKET ST

Good

Over: ROARING BROOK

MOSCOW BORO 713 N TR 690, Lackawanna, PA

Built 1958 Load: 72.6 t ADT: 1,253

WOODSIDE AVE

Good

Over: OVER DUCK RUN

NORTH OF ELLWOOD CITY, Lawrence, PA

Built 1996 Load: 72.6 t ADT: 5,466

PA 160

Good

Over: TR.BOONES RUN

3.5 MI.S.OF REELS CORNER, Somerset, PA

Built 2001 Load: 72.6 t ADT: 1,508

SR 2003

Good

Over: ELKLICK RUN

VILLAGE OF NORDMONT, Sullivan, PA

Built 1932 Load: 72.6 t ADT: 180

SR 53-PA 53

Good

Over: MOSHANNON CREEK

3 MILE WEST OF MOSHANNON, Centre, PA

Built 2004 Load: 72.6 t ADT: 546

SR0194/Abbottstown

Good

Over: Spring Run

1 mile S. of Abbottstwown, Adams, PA

Built 2009 Load: 72.6 t ADT: 9,957

STEPHANO ROAD

Good

Over: TRIBUTARY 32235 SHADIGEE

300FT S SHADIGEE CR RD, Wayne, PA

Built 2016 Load: 72.6 t ADT: 25

T-413 FIREHALL RD

Good

Over: ELDER RUN

100ft East of Rt 66, Armstrong, PA

Built 1999 Load: 73.5 t ADT: 400

SR 4001

Good

Over: BURNS CREEK

2.8 MI.W.OF SCHELLSBURG, Bedford, PA

Built 1959 Load: 73.5 t ADT: 227

SR 0006

Good

Over: WYSOX CREEK

1 MILE EAST OF WYSOX, Bradford, PA

Built 1993 Load: 73.5 t ADT: 8,710

SR 0524 TR 524

Good

Over: KENNEDY CREEK

N ABINGTON TP .5M E TR407, Lackawanna, PA

Built 1939 Load: 73.5 t ADT: 559

SR 49

Good

Over: OVER COWANESQUE RIVER

1 MI EAST OF POTTER BROOK, Tioga, PA

Built 2002 Load: 73.5 t ADT: 1,802

SR 4002

Good

Over: ELK CREEK

2 MI.W.OF COLVER, Cambria, PA

Built 1995 Load: 74.4 t ADT: 677

MID-COUNTY EXWY.NB

Good

Over: LANCASTER AVENUE

LANCASTER AVE.INT. 14H10, Delaware, PA

Built 1990 Load: 74.4 t ADT: 45,310

T-322 HILLSVILLE

Good

Over: HICKORY RUN TRIBUTARY

BTW T449 & T683, Lawrence, PA

Built 1960 Load: 74.4 t ADT: 1,000

T-360 CTY BR#1

Good

Over: BEAVER RUN

1.0 MI. SE OF POTTS GROVE, Montour, PA

Built 1991 Load: 74.4 t ADT: 100

PA 31

Good

Over: LAUREL HILL CREEK

1 MI.WEST OF LAVANSVILLE, Somerset, PA

Built 1963 Load: 74.4 t ADT: 5,636

PA TPK (I-76)

Good

Over: SR 3093; Wentsler Road

NEW STANTON INTERCHANGE, Westmoreland, PA

Built 1963 Load: 74.4 t ADT: 9,244

SR 235-PA 235

Good

Over: LOST CREEK

2 MI N MCALISTERVILLE, Juniata, PA

Built 1997 Load: 74.4 t ADT: 1,023

SR 0022

Good

Over: PA 66

SALEM TWP, Westmoreland, PA

Built 2000 Load: 74.4 t ADT: 29,974

Showing 20,101-20,150 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.