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 1009

Good

Over: MESHOPPEN CREEK

LEMON TWP .5 M S CO LINE, Wyoming, PA

Built 2018 Load: 40.8 t ADT: 135

PA TPK (I-76)

Good

Over: SR4007 MOUNTAIN RD

UPPER MIFFLIN TWP, Cumberland, PA

Built 2018 Load: 40.8 t ADT: 21,102

NEW ALIGNMENT

Good

Over: QUENSHUKENY RUN

NEW ALIGNMENT - QUENSHUKE, Lycoming, PA

Built 2019 Load: 40.8 t ADT: 210

PA 901 (LR 53008)

Good

Over: W. BR Schuylkill River

0.3 MI. N. OF CRESSONA, Schuylkill, PA

Built 2019 Load: 40.8 t ADT: 10,498

RAMP D-S.B. ON

Good

Over: SPUR A SEPTA GIRARD RP B

GIRARD INTERCH. 3591A05, Philadelphia, PA

Built 2020 Load: 40.8 t ADT: 14,712

Cherry Hill Rd

Good

Over: Bowery Run

E of Pumping Station Rd, Lancaster, PA

Built 2020 Load: 40.8 t ADT: 50

WOODS DRIVE

Good

Over: TRINDLE SPRINGS RUN

WOODS DRIVE BRIDGE II, Cumberland, PA

Built 2005 Load: 40.8 t ADT: 4,000

Elmcrest Blvd

Good

Over: Trib to Chickies Creek

Just East of SR 772, Lancaster, PA

Built 2005 Load: 40.8 t ADT: 1,000

PA 93

Good

Over: NESCOPECK CREEK

SUGARLOAF TWP .8 M S I-80, Luzerne, PA

Built 2020 Load: 40.8 t ADT: 10,246

Gold Mine Road

Good

Over: Evening Br. Spring Creek

Cold Spring Township, Lebanon, PA

Built 2020 Load: 40.8 t ADT: 1,802

ON TSR 958

Good

Over: SIX MILE RUN

2 MI SE WINBURNE, Centre, PA

Built 2020 Load: 40.8 t ADT: 237

I-83 NB; SR 0083

Good

Over: T-431 Valley Road

1 MI. N. OF PROGRESS, Dauphin, PA

Built 2020 Load: 40.8 t ADT: 28,641

CONGO ROAD

Good

Over: MIDDLE CREEK

GILBERTSVILLE 2915E07, Montgomery, PA

Built 2022 Load: 40.8 t ADT: 791

SR 4033

Good

Over: Garners Run

WASHINGTON TOWNSHIP, Greene, PA

Built 2023 Load: 40.8 t ADT: 149

Kissel Hill Rd

Good

Over: Drainage Swale

North of Lanc Airport, Lancaster, PA

Built 2004 Load: 40.8 t ADT: 400

BOOT JACK ROAD

Good

Over: CONESTOGA RIVER

2000 FT SOUTH OF SR 23, Lancaster, PA

Built 2023 Load: 40.8 t ADT: 300

SR 0084 I-84 EB

Good

Over: T-357 Kuhn Hill Road

GREENE TWP 1.2 M W TR 507, Pike, PA

Built 2023 Load: 40.8 t ADT: 7,403

PAINTER LEETONIA

Good

Over: PAINTER RUN

1.5 MILES SOUTH OF REXFRD, Tioga, PA

Built 2023 Load: 40.8 t ADT: 10

MCINTOSH ROAD

Good

Over: HUMMLER RUN

0.4 MI. SW DPW BUILDING, Monroe, PA

Built 1964 Load: 40.8 t ADT: 100

RAMP B

Good

Over: RPS.C&D NB CARSON RAMP

Homestead Interchange, Allegheny, PA

Built 1966 Load: 41.1 t ADT: 591

WEST ROCK ROAD

Good

Over: THREEMILE RUN

0.9 M W SR563 ADC 2808-E6, Bucks, PA

Built 1979 Load: 41.1 t ADT: 250

PA 230; SR 0230

Good

Over: Swatara Creek

MIDDLETOWN BORO, Dauphin, PA

Built 1941 Load: 41.1 t ADT: 6,614

SR 2010(LR 45009)

Good

Over: MCMICHAEL CREEK

MANOR DRIVE, Monroe, PA

Built 1960 Load: 41.1 t ADT: 600

SR 3026(LR 45067)

Good

Over: MCMICHAEL CREEK

CAMP AKIBA ROAD, Monroe, PA

Built 1955 Load: 41.1 t ADT: 145

GROVE DRIVE

Good

Over: PINE CREEK

0.52 MI. S. OF HEGINS, Schuylkill, PA

Built 1973 Load: 41.1 t ADT: 350

PA 425; woodbine

Good

Over: MUDDY CREEK

WOODBINE, York, PA

Built 1934 Load: 41.1 t ADT: 747

T-479 SOUTH STREET

Good

Over: COWANESQUE RIVER

500 FT SOUTH OF SR 49, Potter, PA

Built 2006 Load: 41.1 t ADT: 30

SR 4041

Good

Over: Turtle Creek

Murrysville, Westmoreland, PA

Built 2009 Load: 41.1 t ADT: 2,944

SR 1041

Good

Over: Chartiers Creek

0.03 mi N of SR 0079(S), Washington, PA

Built 2009 Load: 41.1 t ADT: 11,041

SR1003 BLUE JAY RD

Good

Over: BLUE JAY CREEK

HOWE TWP, Forest, PA

Built 2012 Load: 41.1 t ADT: 556

SR 4020(LR48059)

Good

Over: TRIB.TO BERTSCH CREEK

MAPLE DRIVE, Northampton, PA

Built 2012 Load: 41.1 t ADT: 1,152

SR 235-PA 235

Good

Over: COCOLAMUS CREEK

MAZE, Juniata, PA

Built 2012 Load: 41.1 t ADT: 414

SR 3031

Good

Over: CONNECTOR BR TO SR 75

PORT ROYAL BORO, Juniata, PA

Built 2012 Load: 41.1 t ADT: 137

SR 3024 MIDL CK RD

Good

Over: MIDDLE CREEK

CHERRY RIDGE 50W SR 3039, Wayne, PA

Built 2012 Load: 41.1 t ADT: 161

WILDWOOD RD

Good

Over: BRADY RUN

@ TR 51 INTERSECTION, Beaver, PA

Built 2013 Load: 41.1 t ADT: 2,304

SR 0079 NB

Good

Over: SR 422 EB & WB MUDDY CR

AT SR 79 NB & SR 422 INT., Butler, PA

Built 2013 Load: 41.1 t ADT: 12,834

I-81SB (LR 1005)

Good

Over: READING/NORTHERN RR

0.4MI.N. OF EXIT 134 (38), Schuylkill, PA

Built 2013 Load: 41.1 t ADT: 11,741

SR 2003

Good

Over: Jacobs Creek

1.7 mi S from SR 0031, Westmoreland, PA

Built 2013 Load: 41.1 t ADT: 1,313

SR 0130

Good

Over: PA Turnpike (I-76)

1.7 mi W from SR 0993, Westmoreland, PA

Built 2012 Load: 41.1 t ADT: 11,916

SR 0079 SB

Good

Over: SR 422 EB & WB MUDDY CR

Intersect. I79 & SR 422, Butler, PA

Built 2014 Load: 41.1 t ADT: 13,071

SR 3017

Good

Over: BREAKNECK CREEK

0.2Mi W SR 3015 Inter., Butler, PA

Built 2014 Load: 41.1 t ADT: 5,004

SR 1002

Good

Over: LITTLE MARSH CREEK

ROMOLA, Centre, PA

Built 2014 Load: 41.1 t ADT: 299

PA TPK (I-76)

Good

Over: SR 4006

Upper Mifflin Twp., Cumberland, PA

Built 2014 Load: 41.1 t ADT: 21,102

PLYMOUTH ROAD

Good

Over: PLYMOUTH CREEK

1/8 MI. E. I-476 3368F03, Montgomery, PA

Built 2015 Load: 41.1 t ADT: 9,755

T-526

Good

Over: S. BR. TIONESTA CREEK

SHEFFIELD TWP., Warren, PA

Built 2014 Load: 41.1 t ADT: 315

Alley No. 1

Good

Over: Jacks Run

130 West of N Urania Ave, Westmoreland, PA

Built 2015 Load: 41.1 t ADT: 660

Mill Hill Rd

Good

Over: Wylie Run

@ INTER. WITH SR 2010, Allegheny, PA

Built 2016 Load: 41.1 t ADT: 1,592

PALMER RD(SR 3013)

Good

Over: MIDDLE RUN

GERMAN TOWNSHIP, Fayette, PA

Built 2018 Load: 41.1 t ADT: 192

Dav Zeisburger Hwy

Good

Over: Beaver Run

HICKORY TOWNSHIP, Forest, PA

Built 2017 Load: 41.1 t ADT: 282

S Porter St

Good

Over: SOUTH FORK TENMILE CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 2019 Load: 41.1 t ADT: 2,727

Showing 16,751-16,800 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.