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

BIG SEWICKLEY CR R

Good

Over: BIG SEWICKLEY CREEK

@ INTERSECTION W/SR 2003, Allegheny, PA

Built 1966 Load: 66.2 t ADT: 4,341

PA TPK (I-76)

Good

Over: T-655

WEST OF BEAVER VAL INTG, Beaver, PA

Built 1952 Load: 66.2 t ADT: 21,390

PA 26

Good

Over: CLEAR CREEK

0.3 MILE NORTH OF SR 2020, Bedford, PA

Built 1930 Load: 66.2 t ADT: 3,810

SR 0467

Good

Over: JOHNSONS CREEK

1 MI.SE OF ALLIS HOLLOW, Bradford, PA

Built 1996 Load: 66.2 t ADT: 1,658

SR 18 MEADVILLE ST

Good

Over: OVER CONNEAUT CREEK BR

ELK CREEK TOWNSHIP, Erie, PA

Built 1923 Load: 66.2 t ADT: 2,871

SR 2005

Good

Over: LITTLE SANDY CREEK

WHARTON TOWNSHIP, Fayette, PA

Built 1996 Load: 66.2 t ADT: 119

T-544 PALUMBO RD

Good

Over: SANDY LICK CREEK

0.1 SE OF SR 950, Jefferson, PA

Built 2005 Load: 66.2 t ADT: 40

SR-0015 NBL&SBL

Good

Over: OVER W FOURTH ST SR 2014

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 66.2 t ADT: 28,748

SR 309 BYPASS

Good

Over: BUTLER PIKE

UPPER DUBLIN 3257H04, Montgomery, PA

Built 1958 Load: 66.2 t ADT: 51,755

SR 2023

Good

Over: ABAN. READING R.R.TRACKS

1 MI S MOUNT CARMEL BORO, Northumberland, PA

Built 1985 Load: 66.2 t ADT: 2,125

SR 11

Good

Over: SILVER CREEK

2 MI SW OF PORT TREVERTON, Snyder, PA

Built 1992 Load: 66.2 t ADT: 16,691

T-513 Horse Track

Good

Over: PA TPK (I-76)

NEAR BROTHERTON, Somerset, PA

Built 2002 Load: 66.2 t ADT: 200

SR 2005

Good

Over: CANOE CAMP CREEK

.7 MI.S.OF MANSFIELD BORO, Tioga, PA

Built 1985 Load: 66.2 t ADT: 8,132

T-451 RIVER ROAD

Good

Over: OVER MORSE RUN

CONEWANGO TOWNSHIP, Warren, PA

Built 1970 Load: 66.2 t ADT: 100

PA TPK (PA-66)

Good

Over: T-690

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 66.2 t ADT: 3,671

SR 1002

Good

Over: BRUSH RUN

PETERS TOWNSHIP, Washington, PA

Built 1938 Load: 66.2 t ADT: 11,052

SR 1010

Good

Over: BRUSH RUN

PETERS TOWNSHIP, Washington, PA

Built 1998 Load: 66.2 t ADT: 11,967

TR 424 BELTWAY

Good

Over: SR 0081 I-81 SB

HAZLE TWP OVER I-81 SB, Luzerne, PA

Built 1999 Load: 66.2 t ADT: 10,719

TR 424 BELTWAY

Good

Over: SR 0081 I-81 NB

HAZLE TWP OVER I-81 NB, Luzerne, PA

Built 1999 Load: 66.2 t ADT: 10,719

SR 1006

Good

Over: OVER BIRCH CREEK

1 MI E OF FOLEYS CORNER, Sullivan, PA

Built 2001 Load: 66.2 t ADT: 343

RAMP D AND H

Good

Over: ABRAMS RUN

NR VF TOLL 34C01/3366H7, Montgomery, PA

Built 2002 Load: 66.2 t ADT: 41,826

1001 Cavalry Rd

Good

Over: I-76 TURNPIKE

N.E. OF CARLISLE, Cumberland, PA

Built 2001 Load: 66.2 t ADT: 6,319

SR 8002 RAMP T

Good

Over: HORNING RUN

ARCH ROCK INTERCHANGE, Juniata, PA

Built 2003 Load: 66.2 t ADT: 360

SR 4005

Good

Over: KENDALL CREEK

BRADFORD, McKean, PA

Built 2003 Load: 66.2 t ADT: 7,554

SR 0281

Good

Over: TUB RUN

HENRY CLAY TWP., Fayette, PA

Built 2004 Load: 66.2 t ADT: 1,450

RAMP MT-B

Good

Over: TURNPIKE ON RAMP(RAMP E)

AIRPORT RAMP FROM SR 60 S, Allegheny, PA

Built 2005 Load: 66.2 t ADT: 4,073

AKLEY ROAD

Good

Over: OVER WOLCOTT RUN

PINE GROVE TWP, Warren, PA

Built 2006 Load: 66.2 t ADT: 636

EASTON ROAD

Good

Over: PA 309 BY-PASS

CEDARBROOK 3370D07, Montgomery, PA

Built 2007 Load: 66.2 t ADT: 23,611

SR4026

Good

Over: MAHONING CREEK

GOODVILLE ROAD, Indiana, PA

Built 2008 Load: 66.2 t ADT: 118

T347 (FREYTOWN RD)

Good

Over: EAST BR. ROARING BROOK

.8 MILES S.E. OF S.R.2009, Lackawanna, PA

Built 2008 Load: 66.2 t ADT: 50

SR 2008

Good

Over: Daniels Run

S of Glyde and 40, Washington, PA

Built 2008 Load: 66.2 t ADT: 94

SR 44 - PA 44

Good

Over: JANDERS RUN

3 MI SE MYRTLE, McKean, PA

Built 2010 Load: 66.2 t ADT: 2,217

CAMPING AREA RD

Good

Over: PA ROUTE 96

SHAWNEE STATE PARK, Bedford, PA

Built 1951 Load: 66.4 t ADT: 50

CORAOPOLIS HTS RD

Good

Over: SR 3160 - BUSINESS 376

1/4 MI E OF AIRSIDE BUS P, Allegheny, PA

Built 1991 Load: 67.1 t ADT: 9,497

PA TPK (I-376)

Good

Over: T-303 (Edwards Rd)

NEW BEAVER BOROUGH, Lawrence, PA

Built 1992 Load: 67.1 t ADT: 183

MID-COUNTY EXWY.SB

Good

Over: SEPTA (NORRISTOWN LINE)

NEAR VILLANOVA 14H09, Delaware, PA

Built 1990 Load: 67.1 t ADT: 41,310

SR 0119

Good

Over: Redstone Creek Abnd R/R

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 67.1 t ADT: 10,081

T312 PLEASANT HILL

Good

Over: LITTLE AUGHWICK CREEK

1.25 MI.N.OF DECORUM, Huntingdon, PA

Built 1937 Load: 67.1 t ADT: 143

SR 3027

Good

Over: GREAT TROUGH CREEK

0.5 MILE NORTH OF TODD, Huntingdon, PA

Built 1938 Load: 67.1 t ADT: 161

SR 3023

Good

Over: LICK CREEK

2 MI N PERULACK, Juniata, PA

Built 1938 Load: 67.1 t ADT: 164

SR 3007

Good

Over: OVER PINE RUN

5 MI NW OF LINDEN, Lycoming, PA

Built 1926 Load: 67.1 t ADT: 326

SR 0084 I-84 WB

Good

Over: T-428 & SAWKILL CREEK

MILFORD TWP OVER SR 2015, Pike, PA

Built 1969 Load: 67.1 t ADT: 9,629

SR 0367 TR 367

Good

Over: TUSCARORA CREEK

AUBURN TWP 230 N SR 3005, Susquehanna, PA

Built 1948 Load: 67.1 t ADT: 368

SR 0070

Good

Over: SR 0019

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 67.1 t ADT: 24,022

RAMP VB

Good

Over: FRANKLIN STREET

VINE STR.INTERCH. 3590F07, Philadelphia, PA

Built 1989 Load: 67.1 t ADT: 22,224

SR 3022 RUTLEDGE R

Good

Over: OVER LACKAWANNOCK CREEK

JEFFERSON TOWNSHIP, Mercer, PA

Built 1999 Load: 67.1 t ADT: 258

PA TPK (TOLL43) NB

Good

Over: RUBLE MILL RD (SR3007)

4.8 MI. S OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 67.1 t ADT: 1,000

PA TPK (TOLL 43)SB

Good

Over: RUBLE MILL RD (SR3007)

4.8MI. S. OF FAIRCHANCE, Fayette, PA

Built 1999 Load: 67.1 t ADT: 1,000

RAMP D-2

Good

Over: SCHUYLKILL EXPWY;RAMP D

.4MI.S.INTER 34B01/3366G7, Montgomery, PA

Built 2002 Load: 67.1 t ADT: 16,162

SR 1006

Good

Over: PETERS CREEK

UNION TOWNSHIP, Washington, PA

Built 2001 Load: 67.1 t ADT: 6,888

Showing 20,001-20,050 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.