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

Bradleytown Rd

Good

Over: W. Branch of Sugar Creek

PLUM TOWNSHIP, Venango, PA

Built 2017 Load: 44.4 t ADT: 398

BRADYS RUN RD

Good

Over: BRADYS RUN

100 FT WEST OF SR 0051, Beaver, PA

Built 2017 Load: 44.4 t ADT: 1,353

BALTIMORE PIKE

Good

Over: ALLOWAY CREEK

1 MI NW OF LITTLESTOWN, Adams, PA

Built 2018 Load: 44.4 t ADT: 8,082

Bald Hill Road

Good

Over: Little Bushkill Creek

.25 mi E Fivemile Meadows, Pike, PA

Built 2016 Load: 44.4 t ADT: 10

Potter Crk Brch Rd

Good

Over: YELLOW CREEK

0.5 MI SOUTH OF WOODBURY, Bedford, PA

Built 2018 Load: 44.4 t ADT: 429

Brady Street

Good

Over: Bradys Run

Adjacent to SR 51, Beaver, PA

Built 2020 Load: 44.4 t ADT: 225

SR 0339

Good

Over: TRIB TO SUSQUEHANNA R

2.3 MI E OF MIFFLINVILLE, Columbia, PA

Built 2022 Load: 44.4 t ADT: 1,486

E COUNTY RD (CR37)

Good

Over: Little Nescopeck Creek

400 FT EAST OF SR 93, Luzerne, PA

Built 2020 Load: 44.4 t ADT: 200

STORMS STORE ROAD

Good

Over: CONEWAGO CREEK

2.25 MI.SW OF NEW OXFORD, Adams, PA

Built 1820 Load: 44.5 t ADT: 650

RAMP G RD

Good

Over: 7th Ave. over I-579

NEAR US STEEL BLDG, Allegheny, PA

Built 1962 Load: 44.5 t ADT: 10,799

CENTER AVE

Good

Over: I-579 CROSSTOWN

CENTER AVE. OVER 1026, Allegheny, PA

Built 1962 Load: 44.5 t ADT: 5,277

Bigelow Blvd

Good

Over: I-579

Bigelow Blvd over I-579, Allegheny, PA

Built 1962 Load: 44.5 t ADT: 3,732

ROBINSON TOWN C BL

Good

Over: SR 0376 EB WB

ROBINSON TWN CTR EXIT, Allegheny, PA

Built 1996 Load: 44.5 t ADT: 24,578

T576 SLOAN HILL RD

Good

Over: PINE CREEK

25 FEET EAST OF SR 1033, Armstrong, PA

Built 1988 Load: 44.5 t ADT: 377

MIDLAND BEAVER RD

Good

Over: FOUR MILE RUN CREEK

1 MILE N.E. OF SR 4037, Beaver, PA

Built 1991 Load: 44.5 t ADT: 9,765

KENDALL HARSHAV RD

Good

Over: LITTLE SERVICE RUN

200 S.W. OF TWP.RD.370, Beaver, PA

Built 1934 Load: 44.5 t ADT: 314

PA TPK (I-376)

Good

Over: SR4001 NORFOLK

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 44.5 t ADT: 9,871

SR 1005(OLD PA 36)

Good

Over: YELLOW CREEK

LOYSBURG, Bedford, PA

Built 1999 Load: 44.5 t ADT: 624

PA 869

Good

Over: BOBS CREEK

WEYANT, Bedford, PA

Built 1999 Load: 44.5 t ADT: 674

SR 1026

Good

Over: BEAVER CREEK

1 MI.SE.OF BRUMBAUGH, Bedford, PA

Built 1938 Load: 44.5 t ADT: 305

US 222 SB

Good

Over: T-702 BROADCASTING RD

OVER BROADCASTING RD., Berks, PA

Built 1997 Load: 44.5 t ADT: 27,889

US 222 NB

Good

Over: BROADCASTING RD T-702

OVER BROADCASTING RD., Berks, PA

Built 1997 Load: 44.5 t ADT: 27,675

SR 4027

Good

Over: BIG FILL RUN

BALD EAGLE, Blair, PA

Built 1913 Load: 44.5 t ADT: 1,510

SR 1013

Good

Over: SINKING RUN

1 MI.E.OF ARCH SPRING, Blair, PA

Built 1999 Load: 44.5 t ADT: 696

T-406 MILL ROAD

Good

Over: GILLANS RUN

1 MI.NW.OF DUNCANSVILLE, Blair, PA

Built 2004 Load: 44.5 t ADT: 282

T432 BURNS AVENUE

Good

Over: SUGAR RUN

2.5 MI.SO.OF ALTOONA, Blair, PA

Built 1990 Load: 44.5 t ADT: 2,838

U.S. 6

Good

Over: SUGAR CREEK

SYLVANIA BOROUGH, Bradford, PA

Built 1957 Load: 44.5 t ADT: 3,609

SR 0187

Good

Over: HOLLOW RUN

VILLAGE OF MYERSBURG, Bradford, PA

Built 1919 Load: 44.5 t ADT: 3,446

SR 1038

Good

Over: WAPPASENING CREEK

WARREN CENTER, Bradford, PA

Built 1995 Load: 44.5 t ADT: 831

SR 1038

Good

Over: WAPPASENING CREEK

VILLAGE OF WARREN CENTER, Bradford, PA

Built 1996 Load: 44.5 t ADT: 831

JEFFERSON AVENUE

Good

Over: NEWTOWN CREEK

.6MILES TO LR 500 31K13, Bucks, PA

Built 1903 Load: 44.5 t ADT: 2,299

LETCHWORTH AVENUE

Good

Over: PENNSYLVANIA CANAL

0.25 MI SW OF US 32, Bucks, PA

Built 1875 Load: 44.5 t ADT: 200

SR 1007

Good

Over: CHEST CREEK

BRADLEY JUNCTION, Cambria, PA

Built 1999 Load: 44.5 t ADT: 307

SR 3023(JOHNS ST.)

Good

Over: LITTLE CONEMAUGH RIVER

JOHNSTOWN, Cambria, PA

Built 1926 Load: 44.5 t ADT: 1,264

SR 3024

Good

Over: SR2006 NORFOLK S SF BRLC

OVER SR 2006 LAMBS BRIDGE, Cambria, PA

Built 1998 Load: 44.5 t ADT: 2,203

T346 HOWARD AVE.

Good

Over: BEAVERDAM RUN

BEAVERDALE NORTHEAST, Cambria, PA

Built 2007 Load: 44.5 t ADT: 86

BROOKS RUN ROAD

Good

Over: BROOKS RUN

1.5 MI SW OF SR 872, Cameron, PA

Built 1996 Load: 44.5 t ADT: 30

RED RUN ROAD

Good

Over: MIX RUN

2 MI SW BENNETS CRK RD, Cameron, PA

Built 2001 Load: 44.5 t ADT: 60

PHOENIXVILLE PIKE

Good

Over: VALLEY CREEK

1.7 MI. N. SR 30 22F6, Chester, PA

Built 1996 Load: 44.5 t ADT: 12,235

SR 153-PA 153

Good

Over: SR 80-I 80

EXIT 111 OTOCSIN INTER, Clearfield, PA

Built 1966 Load: 44.5 t ADT: 2,020

SR 153-PA 153

Good

Over: SR 80-I 80

EXIT 111 OTOCSIN INTER, Clearfield, PA

Built 1966 Load: 44.5 t ADT: 2,020

CARRIER ROAD

Good

Over: LICK RUN

SW OF HANEYVILLE/SR 44, Clinton, PA

Built 2002 Load: 44.5 t ADT: 30

HYNER RUN ROAD

Good

Over: LEFT BRANCH HYNER RUN

1.6 MI NE OF HYNER RUN SP, Clinton, PA

Built 2003 Load: 44.5 t ADT: 30

T-460 CTY BR #67

Good

Over: FISHING CREEK

NW OF BLOOMSBURG, Columbia, PA

Built 1939 Load: 44.5 t ADT: 520

T515 CAMP KIWANIS

Good

Over: MANADA CREEK

3SW GRNTVL/MNDA C/E HNVR, Dauphin, PA

Built 1973 Load: 44.5 t ADT: 150

SHETLAND DR. T-425

Good

Over: MANADA CREEK

1.3 MI N OF S.R. 0039, Dauphin, PA

Built 1995 Load: 44.5 t ADT: 1,000

WEST RIDLEY AVENUE

Good

Over: LITTLE CRUM CREEK

NORTH OF US 13 35B13, Delaware, PA

Built 1998 Load: 44.5 t ADT: 2,559

WEST FIFTH STREET

Good

Over: CHESTER CREEK

.2MI.N.OF PA-291 35-D2, Delaware, PA

Built 1997 Load: 44.5 t ADT: 1,490

ASHLAND AVENUE

Good

Over: AMTRAK

S. CHESTER PIKE 3698-E7, Delaware, PA

Built 1997 Load: 44.5 t ADT: 1,000

I-81 NB; SR 0081

Good

Over: SR 2002 LEITERSBURG RD

0.5 ML. S.OF GREENCASTLE, Franklin, PA

Built 1963 Load: 44.5 t ADT: 19,088

Showing 17,651-17,700 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.