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

CAMP WAWA ROAD

Good

Over: E. BR. PERKIOMEN CREEK

CAMP WAWA ROAD 3030D9, Montgomery, PA

Built 2021 Load: 40.2 t ADT: 325

STUMP ROAD

Good

Over: LITTLE NESHAMINY CREEK

.3 Mi N of PA-463 3145-E2, Montgomery, PA

Built 2022 Load: 40.2 t ADT: 7,006

LOWER STATE ROAD

Good

Over: BRANCH OF MILL CREEK

TRADESVILLE 28F06, Bucks, PA

Built 2022 Load: 40.2 t ADT: 8,227

T-504 BENDER BR RD

Good

Over: ELKLICK CREEK

2 MI.W.OF MEYERSDALE, Somerset, PA

Built 2023 Load: 40.2 t ADT: 46

S 27th Street

Good

Over: CSX Railroad Tunnel

0.2 MI NW of Hot Metal Br, Allegheny, PA

Built 2002 Load: 40.2 t ADT: 1,500

SR 4013

Good

Over: ALLEGHENY RIVER

SEVEN BRIDGES, Potter, PA

Built 2022 Load: 40.2 t ADT: 501

FR 150

Good

Over: KINZUA CREEK

0.2 MILES SOUTH OF FR 122, McKean, PA

Built 1934 Load: 40.2 t ADT: 15

SR 6

Good

Over: MORGAN CREEK

SYLVANIA BOROUGH, Bradford, PA

Built 1957 Load: 40.5 t ADT: 3,059

BRIDGE FIVE LANE

Good

Over: DELAWARE CANAL

25 FT EAST OF SR 32, Bucks, PA

Built 1832 Load: 40.5 t ADT: 10

SR 3005

Good

Over: NORTH FORK WHEELING CK.

RICHHILL TOWNSHIP, Greene, PA

Built 1961 Load: 40.5 t ADT: 335

T-837 HARTMAN RD

Good

Over: EAST RUN

BTW T851 & T981, Indiana, PA

Built 1952 Load: 40.5 t ADT: 37

SR 1044

Good

Over: Little Muddy Creek

05 mi.S. of Red Run, Lancaster, PA

Built 1961 Load: 40.5 t ADT: 1,241

T-410 SPITTLER RD.

Good

Over: SWATARA CREEK

EAST OF SR 125 AT RAVINE, Schuylkill, PA

Built 1970 Load: 40.5 t ADT: 200

SR 0070

Good

Over: SR 1009

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 40.5 t ADT: 26,523

T-444

Good

Over: SCHWABEN CREEK

1 MILE E. OF REBUCK, Northumberland, PA

Built 2005 Load: 40.5 t ADT: 100

FALLS AVE 748

Good

Over: OPOSSUM RUN

700 W of SR201 @ 748, Fayette, PA

Built 2010 Load: 40.5 t ADT: 300

SR 1017

Good

Over: SOUTH BRANCH KNAPP CREEK

1 MI SOUTH DUKE CENTER, McKean, PA

Built 2011 Load: 40.5 t ADT: 651

MORAVIA STREET

Good

Over: BIG RUN

300 S OF SR 2001, Lawrence, PA

Built 2011 Load: 40.5 t ADT: 6,507

SR 2045

Good

Over: Twomile Run

0.3 mi S from SR 0030, Westmoreland, PA

Built 2011 Load: 40.5 t ADT: 24

PA TPK (I-76)

Good

Over: PA TPK (Ramp BC)

Allegheny Valley Interch, Allegheny, PA

Built 2011 Load: 40.5 t ADT: 46,240

South Jefferson St

Good

Over: Neshannock Creek

at inter. of sr 0108, Lawrence, PA

Built 2012 Load: 40.5 t ADT: 6,750

Meadow Rd.

Good

Over: Laurel Run

Tuscarora St Forest, Perry, PA

Built 2012 Load: 40.5 t ADT: 30

SALFORD STATION RD

Good

Over: MILL RACE

1 MI. E. PA-29 3029H03, Montgomery, PA

Built 2012 Load: 40.5 t ADT: 715

SR 173 GROVE CITY

Good

Over: TRIB TO WOLF CREEK

WORTH TWP, Mercer, PA

Built 2013 Load: 40.5 t ADT: 1,873

RAMP D

Good

Over: ADJ TO NORFOLK SOUTHERN

31ST ST/RT 28 RAMP D, Allegheny, PA

Built 2013 Load: 40.5 t ADT: 2,416

PA 191 (LR 169)

Good

Over: BRODHEAD CREEK

AT PA 447 INT., Monroe, PA

Built 2013 Load: 40.5 t ADT: 4,934

SR 1011

Good

Over: DEEP HOLLOW BROOK

HARMONY TWP 2 M N SR 1009, Susquehanna, PA

Built 2014 Load: 40.5 t ADT: 45

SR 0819

Good

Over: Sewickley Creek

4.7 mi S from SR 0119, Westmoreland, PA

Built 2014 Load: 40.5 t ADT: 3,864

T530 W FISHING CR

Good

Over: FISK HOLLOW RUN

4 MI N ROULETTE, Potter, PA

Built 2014 Load: 40.5 t ADT: 100

SR 2004

Good

Over: ELK LICK CREEK

.5 MI W OF MEYERSDALE, Somerset, PA

Built 2015 Load: 40.5 t ADT: 1,257

Creek Road

Good

Over: FARGO CREEK

3.5 MI. SOUTH OF SILVARA, Bradford, PA

Built 2015 Load: 40.5 t ADT: 467

SR 3005

Good

Over: BEAR CREEK

1 MI SW OF LASHLEY, Fulton, PA

Built 2015 Load: 40.5 t ADT: 69

Haynes Street

Good

Over: Stonycreek River

200 W of Bedford Street, Cambria, PA

Built 2015 Load: 40.5 t ADT: 9,012

Eagle Valley Road

Good

Over: Masden Run

3 MILE EAST BEECH CREEK, Clinton, PA

Built 2017 Load: 40.5 t ADT: 5,533

ABBOTTSTOWN PIKE

Good

Over: UNT TO BEAVER CREEK

ABBOTTSTOWN, Adams, PA

Built 2017 Load: 40.5 t ADT: 9,957

GIBSONIA RD

Good

Over: DEER CREEK

250 SOUTH OF SR 1020, Allegheny, PA

Built 2017 Load: 40.5 t ADT: 3,925

Montsera Rd; T-544

Good

Over: YELLOW BREECHES CREEK

MONTSERA, Cumberland, PA

Built 2017 Load: 40.5 t ADT: 372

SAXONBURG BLVD

Good

Over: LITTLE PINE CREEK

4283 N.E. OF SR 0008, Allegheny, PA

Built 2017 Load: 40.5 t ADT: 3,085

G. BUENA VISTA RD

Good

Over: WILDCAT RUN

AT ROCK RUN RD, Allegheny, PA

Built 2018 Load: 40.5 t ADT: 1,847

CUMBERLAND HWY

Good

Over: CONODOGUINET CREEK

1.7 MI SE OF ROXBURY, Franklin, PA

Built 2018 Load: 40.5 t ADT: 4,203

COLUMBIA AVE

Good

Over: LITTLE CONESTOGA CREEK

WEST LANCASTER, Lancaster, PA

Built 2019 Load: 40.5 t ADT: 15,323

Neshannock FallsRd

Good

Over: NESHANNOCK CREEK

1.5 MI. WEST OF SR 0168, Lawrence, PA

Built 2017 Load: 40.5 t ADT: 747

FORT ROBINSON RD

Good

Over: BIXLERS RUN

1.5 MI NW FORT ROBINSON, Perry, PA

Built 2017 Load: 40.5 t ADT: 909

Aspers Benders Rd

Good

Over: OPOSSUM CREEK

ASPERS, Adams, PA

Built 2018 Load: 40.5 t ADT: 1,442

WISES GROVE RD

Good

Over: BRUSH CREEK

100NORTHEAST OF PIKE, Beaver, PA

Built 2018 Load: 40.5 t ADT: 1,533

PEMBERTON RD

Good

Over: SINKING RUN

0.2 MI NORTH OF SR 453, Blair, PA

Built 2018 Load: 40.5 t ADT: 516

SR 0070 EB

Good

Over: SR 0481

0.2 mi E from SR 0481, Washington, PA

Built 2017 Load: 40.5 t ADT: 12,166

SR 0070 WB

Good

Over: SR 0481

0.2 mi E from SR 0481, Washington, PA

Built 2017 Load: 40.5 t ADT: 12,020

STREET ROAD

Good

Over: RADLEY RUN

AT OLD RTE 100 3693A6, Chester, PA

Built 2017 Load: 40.5 t ADT: 12,042

Lower Limeport Rd

Good

Over: Delaware Canal

2.5 MI. N OF NEW HOPE, Bucks, PA

Built 1832 Load: 40.5 t ADT: 20

Showing 16,451-16,500 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.