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 2002

Good

Over: SR 0079

1.3 mi E from SR 0019, Washington, PA

Built 2012 Load: 38.6 t ADT: 332

PA 234; SR 0234

Good

Over: CONEWAGO CREEK

ARENDTSVILLE, Adams, PA

Built 2013 Load: 38.6 t ADT: 3,578

SR 1054

Good

Over: Back Creek

2.9 mi E from SR 0381, Fayette, PA

Built 2013 Load: 38.6 t ADT: 1,762

SR 1007

Good

Over: MUD CREEK

1.5 MI E STRAWBERRY RIDGE, Montour, PA

Built 2013 Load: 38.6 t ADT: 114

US 22; SR 0022 WB

Good

Over: MANADA CREEK

1 MI S MANADA, Dauphin, PA

Built 2013 Load: 38.6 t ADT: 3,751

US 22; SR 0022 EB

Good

Over: MANADA CREEK

1 MI S MANADA, Dauphin, PA

Built 2013 Load: 38.6 t ADT: 3,814

SR 4024 Elkhorn Rd

Good

Over: ELKHORN CREEK

3 MILES NORTHWEST OF TIOG, Tioga, PA

Built 2013 Load: 38.6 t ADT: 201

SR 0068

Good

Over: LICKING CREEK

0.5 MI E SR 58 INTER., Clarion, PA

Built 2014 Load: 38.6 t ADT: 3,446

SR 4022

Good

Over: BOILE RUN

3 MI E OF FISHERS FERRY, Northumberland, PA

Built 2013 Load: 38.6 t ADT: 221

SR 0130

Good

Over: Turtle Creek NS R/R

0.0 mi W from SR 0993, Westmoreland, PA

Built 2013 Load: 38.6 t ADT: 6,473

I-81SB (LR1005)

Good

Over: RBMNRR

2.7MI. N. OF EXIT134 (38), Schuylkill, PA

Built 2013 Load: 38.6 t ADT: 11,741

SR 0390 TR 390

Good

Over: LEAVITT CREEK

GREENE TWP 2.5M S SR 3002, Pike, PA

Built 2013 Load: 38.6 t ADT: 1,510

PA 641; GREEN SPG.

Good

Over: BULLS HEAD CREEK

3 MI SW OF NEWVILLE, Cumberland, PA

Built 2013 Load: 38.6 t ADT: 2,638

SR 0267 TR 267

Good

Over: MIDDLE BR WYALUSING CR

RUSH TWP 1.6 M N TR 706, Susquehanna, PA

Built 2014 Load: 38.6 t ADT: 1,508

SR 0166

Good

Over: Dunlap Creek

1.4 mi S from SR 0040, Fayette, PA

Built 2013 Load: 38.6 t ADT: 3,764

SR 2079

Good

Over: Pike Run

4.73 mi S from SR 0481, Washington, PA

Built 2014 Load: 38.6 t ADT: 230

PA 74; SR 0074

Good

Over: BR PANTHER CREEK

ICKESBURG, Perry, PA

Built 2014 Load: 38.6 t ADT: 2,162

SR 3005

Good

Over: GARDNERS CREEK

RANSOM TWP .2M E SR 3001, Lackawanna, PA

Built 2014 Load: 38.6 t ADT: 326

PA 154

Good

Over: BLACKWATER RUN

VILLAGE OF ESTELLA, Sullivan, PA

Built 2014 Load: 38.6 t ADT: 884

SR4063; Maibach Ln

Good

Over: AMTRAK

.25 MI S OF SR230, Lancaster, PA

Built 2014 Load: 38.6 t ADT: 2,203

PA TPK (I-476)

Good

Over: T-645

Near Mid-County Interchan, Montgomery, PA

Built 2014 Load: 38.6 t ADT: 65,329

SR 770-PA 770

Good

Over: MINARD RUN

3 MI SE DEGOLA, McKean, PA

Built 2014 Load: 38.6 t ADT: 2,035

SR 2001

Good

Over: TRIBUTARY SPRING CREEK

3 MI NE ELIMSPORT, Lycoming, PA

Built 2014 Load: 38.6 t ADT: 2,511

I-81NB

Good

Over: READING/NORTHERN RR

2.7MI.N.OF EXIT 134 (38), Schuylkill, PA

Built 2014 Load: 38.6 t ADT: 11,529

SR 4022

Good

Over: STONYCREEK RIVER

1 MI W OF PAINT, Somerset, PA

Built 2014 Load: 38.6 t ADT: 312

SR 2014

Good

Over: FRANKSTOWN BR JUN RIVER

1 MI E OF HOLLIDAYSBURG, Blair, PA

Built 2014 Load: 38.6 t ADT: 1,909

SR 0830

Good

Over: BEAVERDAM RUN

0.5 Mi W SR 1009 Inter., Jefferson, PA

Built 2015 Load: 38.6 t ADT: 1,559

SR 4013

Good

Over: N BR QUEMAHONING CREEK

3 MI SW OF JENNERSTOWN, Somerset, PA

Built 2015 Load: 38.6 t ADT: 107

SR 2023

Good

Over: LITTLE CLEARFIELD CREEK

OSHANTER, Clearfield, PA

Built 2015 Load: 38.6 t ADT: 376

PA 441 front st.

Good

Over: US 30; SR 0030

PA441 over US30, Lancaster, PA

Built 2015 Load: 38.6 t ADT: 4,304

T548 Graysville Mi

Good

Over: Spruce Creek

Graysville, Huntingdon, PA

Built 2015 Load: 38.6 t ADT: 29

SR 2035

Good

Over: SULPHUR RUN

VILLAGE OF WINBURNE, Clearfield, PA

Built 2015 Load: 38.6 t ADT: 453

Catawissa Creek Rd

Good

Over: CATAWISSA CREEK

CATAWISSA CREEK ROAD, Schuylkill, PA

Built 2015 Load: 38.6 t ADT: 250

Coal Pit Rd

Good

Over: COAL PIT RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 2015 Load: 38.6 t ADT: 714

T-450 (Cty Br. 8)

Good

Over: BUFFALO CREEK

0.5 MI. SE OF KELLY POINT, Union, PA

Built 2015 Load: 38.6 t ADT: 250

Thorn Hill Road

Good

Over: PA TPK (I-76)

West of Warrendale, Allegheny, PA

Built 2015 Load: 38.6 t ADT: 22,384

SR 42

Good

Over: LITTLE MUNCY CREEK

1 MI. N. OF UNITYVILLE, Lycoming, PA

Built 2016 Load: 38.6 t ADT: 1,732

Gas Valley Road

Good

Over: Br. S.Fork Tomlinson Run

200S of Int w/ SR3028, Beaver, PA

Built 2017 Load: 38.6 t ADT: 233

SR 3001;OLD HBG RD

Good

Over: CONEWAGO CREEK

1 1/2 MI.S. HEIDLERSBURG, Adams, PA

Built 2016 Load: 38.6 t ADT: 1,473

Spruce Run Rd

Good

Over: SPRUCE RUN

2.5 MI W OF KELLY CROSSRD, Union, PA

Built 2016 Load: 38.6 t ADT: 797

GLASS RUN RD

Good

Over: GLASS RUN

NEAR SR 3100, Allegheny, PA

Built 2017 Load: 38.6 t ADT: 6,305

SR 3025

Good

Over: CSX RAILROAD

0.5 MI S OF SOMERSET, Somerset, PA

Built 2016 Load: 38.6 t ADT: 1,354

PA 913

Good

Over: SHOUPS RUN

1.6 MILE EAST OF SR 3013, Huntingdon, PA

Built 2016 Load: 38.6 t ADT: 2,043

STREETS RUN RD

Good

Over: STREETS RUN

AT INTER./ SR 3046, Allegheny, PA

Built 2018 Load: 38.6 t ADT: 8,554

Riffle Hollow Rd

Good

Over: MIDDLE RUN

GERMAN TOWNSHIP, Fayette, PA

Built 2018 Load: 38.6 t ADT: 136

SR 0414 SH

Good

Over: Upper Pine Bottom Run

2 MI N OF WATERVILLE, Lycoming, PA

Built 2017 Load: 38.6 t ADT: 597

Green Valley Rd

Good

Over: SUGAR RUN

3MI.E OF HUGHESVILLE, Lycoming, PA

Built 2017 Load: 38.6 t ADT: 487

Port Allegany Rd

Good

Over: Dingmans Run

COUDERSPORT BORO, Potter, PA

Built 2018 Load: 38.6 t ADT: 5,132

MATHEWS RUN RD

Good

Over: Hazeltine Hollow Run

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2017 Load: 38.6 t ADT: 1,432

Carlisle Road

Good

Over: BERMUDIAN CREEK

IDAVILLE, Adams, PA

Built 2017 Load: 38.6 t ADT: 2,961

Showing 15,601-15,650 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.