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

SR 2018

Good

Over: Boro St 2 R/R Mon Riv

0.1 mi E from SR 0088, Washington, PA

Built 1986 Load: 41.7 t ADT: 6,387

ENON ROAD

Good

Over: PA TURNPIKE

0.5 MI N OF SR 3011, Lawrence, PA

Built 2010 Load: 41.7 t ADT: 818

FINNIN ROAD

Good

Over: Chartiers Run

Allegheny, Westmoreland, PA

Built 2007 Load: 41.7 t ADT: 25

N. Chestnut St

Good

Over: Shamokin Creek

Mount Carmel Borough, Northumberland, PA

Built 2016 Load: 41.7 t ADT: 660

T-601; JONESTOWN R

Good

Over: Beaver Creek

1 E PAXTONIA/BEAVER CRK, Dauphin, PA

Built 2018 Load: 41.7 t ADT: 4,929

Corriere Road

Good

Over: Shoeneck Creek

0.3MI East of PA248, Northampton, PA

Built 2014 Load: 41.7 t ADT: 2,000

Washington Twp Bvd

Good

Over: East Brach Antietam Ck

1.8 Mi East of Waynesboro, Franklin, PA

Built 2009 Load: 41.7 t ADT: 20,870

T-523

Good

Over: Pa TPK I-76

W. of Downingtown Int., Chester, PA

Built 2022 Load: 41.7 t ADT: 947

MILL ST

Good

Over: ROBINSON RUN SOUTH BRANC

RS03 ROBINSON RUNSBR #3, Allegheny, PA

Built 2022 Load: 41.7 t ADT: 323

SAXONBURG BL

Good

Over: LITTLE PINE CREEK

.2 MI. N./OHARA TWP. LINE, Allegheny, PA

Built 1939 Load: 41.8 t ADT: 3,085

BABCOCK BL

Good

Over: GIRTYS RUN

1/2 MI.N.W.OF SR 4002, Allegheny, PA

Built 1930 Load: 41.8 t ADT: 12,681

TYBURN ROAD

Good

Over: RAMP G

.5MI.S.MORRISVILLE 39B09, Bucks, PA

Built 1954 Load: 41.8 t ADT: 8,643

PA 283 EB; SR 0300

Good

Over: PENNA TURNPIKE I-76

2 MI. E. MIDDLETOWN, Dauphin, PA

Built 1969 Load: 41.8 t ADT: 21,923

PA 283 WB; SR 0300

Good

Over: PENNA TURNPIKE I-76

2 MI. N.E. OF MIDDLETOWN, Dauphin, PA

Built 1969 Load: 41.8 t ADT: 23,416

SR 0381

Good

Over: YOUGHIOGHENY RIVER

OHIOPYLE BOROUGH, Fayette, PA

Built 1975 Load: 41.8 t ADT: 2,469

SR 4021

Good

Over: BATES FORK

MORRIS TOWNSHIP, Greene, PA

Built 1948 Load: 41.8 t ADT: 64

WOODLAND DR.

Good

Over: BEAR CREEK

0.8 MI W.OF AUBURN, Schuylkill, PA

Built 2006 Load: 41.8 t ADT: 150

SR 3018

Good

Over: US 222

SR 3018 OVER US 222, Berks, PA

Built 2004 Load: 41.8 t ADT: 1,174

DEPOT STREET

Good

Over: OSWAYO CREEK

0.1 MI. FROM RTE 244, Potter, PA

Built 2006 Load: 41.8 t ADT: 213

PA 249

Good

Over: CROOKED CREEK

VILLAGE OF LITTLE MARSH, Tioga, PA

Built 2010 Load: 41.8 t ADT: 1,624

TERWOOD ROAD

Good

Over: BRANCH PENNYPACK CREEK

3/4 MI. W. PA232 3259H10, Montgomery, PA

Built 2011 Load: 41.8 t ADT: 7,999

Geigel Hill Road

Good

Over: Tinicum Creek

Ottsville 2698-G4, Bucks, PA

Built 2011 Load: 41.8 t ADT: 725

Mill Street

Good

Over: Neshannock Creek

.08 MI S of EWashington, Lawrence, PA

Built 2014 Load: 41.8 t ADT: 6,153

PA TPK (I-476)

Good

Over: T-346 Jolly Rd

Near Arch Street Rd, Montgomery, PA

Built 2014 Load: 41.8 t ADT: 65,329

Lebanon Rd.

Good

Over: Union RR

2000 N. OF AIRPORT RUNWA, Allegheny, PA

Built 2014 Load: 41.8 t ADT: 18,569

BUSTARD ROAD

Good

Over: PA TPK (I-476)

Nr Landsdale Intc 3143F2, Montgomery, PA

Built 2015 Load: 41.8 t ADT: 9,105

SR 0087 SH

Good

Over: LITTLE LOYALSOCK CREEK

0.25 MI. W. of Dushore, Sullivan, PA

Built 2015 Load: 41.8 t ADT: 965

SR 209 & SR 33 SB

Good

Over: Appenzell Creek

AT JUNCT. WITH PA33 SB, Monroe, PA

Built 2017 Load: 41.8 t ADT: 18,441

LINN RUN PARK RD

Good

Over: LINN RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 2016 Load: 41.8 t ADT: 983

GRANGE CENTER RD

Good

Over: Brookhouser Creek

HAYFIELD TOWNSHIP, Crawford, PA

Built 2016 Load: 41.8 t ADT: 1,070

SR 64- PA 64

Good

Over: FISHING CREEK

LAMAR, Clinton, PA

Built 2016 Load: 41.8 t ADT: 6,382

Park Blvd. T-591

Good

Over: Spring Creek

SW Side Hershey Park, Dauphin, PA

Built 2016 Load: 41.8 t ADT: 6,485

UNION VALLEY RD

Good

Over: MCKEE RUN

1/4 MI W OF SR 2012, Lawrence, PA

Built 2017 Load: 41.8 t ADT: 1,156

Coudersport Pike

Good

Over: Little Kettle Creek

CARTER CAMP, Potter, PA

Built 2018 Load: 41.8 t ADT: 443

Branch Rd (SR2002)

Good

Over: Lyman Run

2 MI SW GERMANIA STATION, Potter, PA

Built 2018 Load: 41.8 t ADT: 140

Freeport Rd

Good

Over: SR0422 EB/WB & RAMPS F&G

BRIAR HILL, Armstrong, PA

Built 2018 Load: 41.8 t ADT: 2,436

AMITY RIDGE RD

Good

Over: Tenmile Creek

AMWELL TOWNSHIP, Washington, PA

Built 2018 Load: 41.8 t ADT: 927

Scott Center Road

Good

Over: Oquaga Creek

SCOTT TWP .2 M S SR 4043, Wayne, PA

Built 2017 Load: 41.8 t ADT: 237

New Bridgeville Rd

Good

Over: FISHING CREEK

1.5 MI SE OF CRALEY, York, PA

Built 2018 Load: 41.8 t ADT: 1,732

SR 0084 I-84 EB

Good

Over: RATTLESNAKE CREEK

DINGMAN TWP 4.9M E TR 739, Pike, PA

Built 2017 Load: 41.8 t ADT: 6,491

SR 4002

Good

Over: Raccoon Creek

4.4 mi E from SR 0018, Washington, PA

Built 1962 Load: 41.8 t ADT: 550

22ND STREET

Good

Over: VINE STREET EXPY (I-676)

N. of Winter St. 3590-B07, Philadelphia, PA

Built 2018 Load: 41.8 t ADT: 12,400

PA TPK I-76

Good

Over: Norfolk Southern RR

MIDDLESEX TWP, Cumberland, PA

Built 2018 Load: 41.8 t ADT: 20,357

SR1004 EB&WB

Good

Over: Sr 0119 NB & SB

Interse of SR 1004 & 0119, Indiana, PA

Built 2020 Load: 41.8 t ADT: 6,669

PA 601 (LR 269)

Good

Over: PA TPK I-76

SOMERSET, Somerset, PA

Built 2019 Load: 41.8 t ADT: 12,782

SOUTH BEND LANE

Good

Over: CHALFONT RUN

500 SO. OF BUS. RT.22, Allegheny, PA

Built 2020 Load: 41.8 t ADT: 1,407

SR 4004

Good

Over: DRIFTWOOD BR SINNEMAHON

ELK CREEK, Cameron, PA

Built 2022 Load: 41.8 t ADT: 87

PA 160

Good

Over: DARK SHADE CREEK

0.21 MILES SOUTH OF MAIN, Somerset, PA

Built 2021 Load: 41.8 t ADT: 2,612

SR 98

Good

Over: OVER VAN HORNE RUN

VERNON TOWNSHIP, Crawford, PA

Built 2023 Load: 41.8 t ADT: 4,196

NO DATA ENTERED

Good

Over: NO DATA ENTERED

NO DATA ENTERED, Elk, PA

Built 2016 Load: 41.8 t ADT: 90

Showing 17,001-17,050 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.