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

Brownshill Road

Good

Over: Little Pine Creek

112001 OHARA TWP, Allegheny, PA

Built 2019 Load: 43.7 t ADT: 1,765

T-302

Good

Over: STERLING RUN

400 FT S OF SR 120, Cameron, PA

Built 2019 Load: 43.7 t ADT: 75

MARKLEY STREET

Good

Over: STONY CREEK

.1 MI. N. MAIN ST 3367E02, Montgomery, PA

Built 2021 Load: 43.7 t ADT: 25,273

MILL ROAD T-564

Good

Over: CONEWAGO CREEK

CWT-2 MILL ROAD BRIDGE, Dauphin, PA

Built 2021 Load: 43.7 t ADT: 182

SR 514

Good

Over: N. BR. OF TOWANDA CREEK

2.5 MI.W.OF GRANVILLE CTR, Bradford, PA

Built 2009 Load: 43.8 t ADT: 662

PINE CREEK ROAD

Good

Over: PINE CREEK

100FT W OF US 19, Allegheny, PA

Built 1921 Load: 44.1 t ADT: 6,799

EVERGREEN RD

Good

Over: GIRTYS RUN

GI10 GIRTYS RUN NO. 10, Allegheny, PA

Built 1981 Load: 44.1 t ADT: 4,800

SR 0390 TR 390

Good

Over: OUTLET FAIRVIEW LAKE

PALMYRA TWP 1 M N SR 4004, Pike, PA

Built 1938 Load: 44.1 t ADT: 2,580

SR 4006

Good

Over: SLIPPERY ROCK CRK.

0.6 MI E SR 8 INTER., Butler, PA

Built 2013 Load: 44.1 t ADT: 259

SR 3003

Good

Over: LITTLE SANDY CREEK

4.1 MI S SR 3007 INTER., Jefferson, PA

Built 2013 Load: 44.1 t ADT: 83

ON TSR 547

Good

Over: COWANESQUE RIVER

ELMER, Potter, PA

Built 2014 Load: 44.1 t ADT: 154

SR 0079 NB

Good

Over: SR 1047 (Manifold Road)

2.4 mi N of 79N/70W, Washington, PA

Built 2014 Load: 44.1 t ADT: 24,878

Ridge Road

Good

Over: N. branch Bermudian Crk

1.75 mi SE Clear Spring, York, PA

Built 2015 Load: 44.1 t ADT: 123

SR 8010

Good

Over: SR 0422 EB & WB

Inter. SR 422 & SR 8010, Armstrong, PA

Built 2015 Load: 44.1 t ADT: 1,987

SR 0088

Good

Over: Muddy Creek

3.2 mi N from SR 0021, Greene, PA

Built 2014 Load: 44.1 t ADT: 4,747

SR 0706 SH

Good

Over: Ross Creek

STEVENS TWP .1M E LR08034, Bradford, PA

Built 2016 Load: 44.1 t ADT: 1,894

SR 1006

Good

Over: Peters Creek

0.7 mi W from SR 0088, Washington, PA

Built 2016 Load: 44.1 t ADT: 14,872

East Prospect Rd

Good

Over: KREUTZ CREEK

1.3 W OF DELROY, York, PA

Built 2018 Load: 44.1 t ADT: 5,301

PA TPK (I-76)

Good

Over: SR 0011 LR 34

Middlesex Twp., Cumberland, PA

Built 2017 Load: 44.1 t ADT: 20,357

HILLSIDE ROAD CR16

Good

Over: HUNTSVILLE CREEK

0.6M W SR 309, Luzerne, PA

Built 2017 Load: 44.1 t ADT: 500

I-78(LR 285SP)

Good

Over: TWP. RD 801 (STUMP RD)

.5 MI W OF LEHIGH CO LINE, Berks, PA

Built 2019 Load: 44.1 t ADT: 39,900

T518 WINTERBURN RD

Good

Over: BENNETT BRANCH

2700 FT SOUTH OF SR 255, Clearfield, PA

Built 2019 Load: 44.1 t ADT: 10

SR 0830

Good

Over: Falls Creek

0.2mi W SR 950 Inter, Jefferson, PA

Built 2020 Load: 44.1 t ADT: 1,839

SR 3034 BUTLER ST

Good

Over: LITTLE NESCOPECK CRK

CONYNGHAM BO .8 M E TR 93, Luzerne, PA

Built 2021 Load: 44.1 t ADT: 3,730

BUNNEL ROAD T-333

Good

Over: Riley Creek

AUBURN TOWNSHIP, Susquehanna, PA

Built 2022 Load: 44.1 t ADT: 50

LOGANS FERRY RD.

Good

Over: PUCKETA CREEK

@ WESTMORELAND CO.LINE, Allegheny, PA

Built 1949 Load: 44.4 t ADT: 11,857

TYBURN ROAD

Good

Over: WARNER COMPANY ROAD

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

Built 1955 Load: 44.4 t ADT: 8,643

EDGE HILL RD

Good

Over: OLD YORK RD 3259B10

1MI.S.WELSH RD 32C6, Montgomery, PA

Built 1947 Load: 44.4 t ADT: 6,942

Maple Grove Road

Good

Over: RACCOON CREEK TRIB

700 WEST OF TR 839, Washington, PA

Built 1904 Load: 44.4 t ADT: 20

SR 0403

Good

Over: TWO LICK CREEK

.1 mi. NW of SR 286 inter, Indiana, PA

Built 2011 Load: 44.4 t ADT: 3,021

SR 3003

Good

Over: Branch of Speers Run

0.8 mi N from SR 0070, Westmoreland, PA

Built 2011 Load: 44.4 t ADT: 3,312

SR 0019 SB

Good

Over: SR 0519

4.8 mi N from SR 0070, Washington, PA

Built 2011 Load: 44.4 t ADT: 11,656

SR 4002

Good

Over: LITTLE MEHOOPANY CREEK

MEHOOPANY TP 1.3 MW TR 87, Wyoming, PA

Built 2013 Load: 44.4 t ADT: 795

SR 3037

Good

Over: Sewickley Creek

0.2 mi S from SR 0070, Westmoreland, PA

Built 2013 Load: 44.4 t ADT: 2,916

RICHLIEU ROAD

Good

Over: I-276 PA TURNPIKE

1 MI. E. US-1 3261H10, Bucks, PA

Built 2014 Load: 44.4 t ADT: 9,587

PA TPK (I-476)

Good

Over: T-377 N Wales Rd

Near W. Skippack Pike, Montgomery, PA

Built 2014 Load: 44.4 t ADT: 65,329

SR 0366

Good

Over: SR 0056

0.2 mi W from SR 0056, Westmoreland, PA

Built 2015 Load: 44.4 t ADT: 16,959

SR 0249 SH

Good

Over: JEMISON CREEK

3.5 MI E OF WESTFIELD, Tioga, PA

Built 2015 Load: 44.4 t ADT: 1,104

Log Cabin Rd

Good

Over: Little Deer Creek

70 West of SR 1015, Allegheny, PA

Built 2015 Load: 44.4 t ADT: 433

GREENSBURG RD

Good

Over: Pucketa Creek

Borough of Murrysville, Westmoreland, PA

Built 2015 Load: 44.4 t ADT: 9,789

Club House Rd

Good

Over: Swiftwater Creek

2.5 MI E. OF SWIFTWATER, Monroe, PA

Built 2015 Load: 44.4 t ADT: 1,074

SR 0187 SH

Good

Over: Durell Creek

1 MILE SOUTH OF DURELL, Bradford, PA

Built 2016 Load: 44.4 t ADT: 616

Stevenson Blvd

Good

Over: LITTLE PUCKETA CREEK

CITY OF NEW KENSINGTON, Westmoreland, PA

Built 2016 Load: 44.4 t ADT: 19,069

HOFFA MILL ROAD

Good

Over: Buffalo Creek

2 MI NE BUFFALO CROSS RDS, Union, PA

Built 2016 Load: 44.4 t ADT: 601

Laurelville Rd

Good

Over: Jacobs Creek

MT. PLEASANT & BULLSKIN T, Westmoreland, PA

Built 2017 Load: 44.4 t ADT: 8,276

SR 4043

Good

Over: I-78

Power Drive over I-78, Berks, PA

Built 2016 Load: 44.4 t ADT: 206

Bridge Street

Good

Over: POCONO CREEK

BRIDGE ST., Monroe, PA

Built 2016 Load: 44.4 t ADT: 13,232

Mount Pleasant Rd

Good

Over: BEAVER RUN

NEAR OHL NO. 1, Jefferson, PA

Built 2017 Load: 44.4 t ADT: 177

Kirks Mill Road

Good

Over: REYNOLDS RUN

KIRKS MILLS, Lancaster, PA

Built 2018 Load: 44.4 t ADT: 716

Olean Rd

Good

Over: Pennbrook Run

1 MI N GILMORE, McKean, PA

Built 2018 Load: 44.4 t ADT: 979

Showing 17,601-17,650 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.