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 718 IVANHOE RD

Good

Over: MCCULLOUGH RUN

SOUTH PYMATUNING TWP, Mercer, PA

Built 2013 Load: 32.7 t ADT: 1,305

SR 4017

Good

Over: BRANCH OSWAYO CREEK

1 MI S SHINGLEHOUSE, Potter, PA

Built 2013 Load: 32.7 t ADT: 234

SR 1003

Good

Over: WELLS CREEK

0.5 MILE WEST OF LISTIE, Somerset, PA

Built 2013 Load: 32.7 t ADT: 977

OAK STREET

Good

Over: N. BR. PLUM CREEK

300 FT SOUTH OF SR 85, Indiana, PA

Built 2003 Load: 32.7 t ADT: 40

LOWER MIDDLE CK RD

Good

Over: MIDDLE CREEK

1.5 MI E OF 534, Monroe, PA

Built 2011 Load: 32.7 t ADT: 400

T-689 WING ROAD

Good

Over: CONNEAUT CREEK

SUMMERHILL TWP., Crawford, PA

Built 2013 Load: 32.7 t ADT: 50

Schoolhouse Lane

Good

Over: Slotznick Run

0.3 Mi Ea I-83 Slotznick, Dauphin, PA

Built 2013 Load: 32.7 t ADT: 3,547

PA 403

Good

Over: STONYCREEK RIVER

0.29 MILE N. FROM US 30, Somerset, PA

Built 2013 Load: 32.7 t ADT: 1,033

Ardara Road

Good

Over: Branch of Brush Creek

North Huntingdon Twp, Westmoreland, PA

Built 1995 Load: 32.7 t ADT: 250

T584Duck Hallow RD

Good

Over: Jennings Run

Menallen/South Union TWPS, Fayette, PA

Built 2007 Load: 32.7 t ADT: 100

PA 641;GREEN SPG.

Good

Over: GREEN SPRING CREEK

3 MI. S.W. OF NEWVILLE, Cumberland, PA

Built 2013 Load: 32.7 t ADT: 2,638

Hykes Road

Good

Over: Norfolk Southern RR

1.5 M west of US 11, Franklin, PA

Built 2012 Load: 32.7 t ADT: 500

SPIECE ROAD

Good

Over: TOMHICKEN CREEK

SE OF NUREMBURG, Schuylkill, PA

Built 2014 Load: 32.7 t ADT: 200

SR 2001

Good

Over: LITTLE ROARING CREEK

4 MI NORTH OF ELYSBURG, Northumberland, PA

Built 2014 Load: 32.7 t ADT: 128

SR 2012

Good

Over: LICKING CREEK

1.1 MILE EAST OF SR 2019, Huntingdon, PA

Built 2014 Load: 32.7 t ADT: 154

SR 346-PA 346

Good

Over: BRANCH FOSTER BROOK

1 MI E GILMORE, McKean, PA

Built 2014 Load: 32.7 t ADT: 1,742

SR 3003

Good

Over: MEHOOPANY CREEK

MEHOOPANY TWP .1M S TR 87, Wyoming, PA

Built 2014 Load: 32.7 t ADT: 532

SR 1015 CARLTON RD

Good

Over: FRENCH CREEK

FRENCH CREEK TWP., Mercer, PA

Built 2014 Load: 32.7 t ADT: 430

SR 718 WATER ST.

Good

Over: BIG RUN

CITY OF HERMITAGE, Mercer, PA

Built 2014 Load: 32.7 t ADT: 2,714

Malabar Drive

Good

Over: Abers Creek

200 W Pine Valley Dr, Allegheny, PA

Built 1995 Load: 32.7 t ADT: 250

FORESTRY ACCESS RD

Good

Over: TRIB. TO BEAR CREEK

INTER. WEST DEERVIEW RD, Schuylkill, PA

Built 2015 Load: 32.7 t ADT: 5

CHERRYTREE ROAD

Good

Over: TWO MILE RUN

AT TWO MILE RUN RESERVOIR, Venango, PA

Built 2015 Load: 32.7 t ADT: 200

SR 666 D ZEIS HWY

Good

Over: PORCUPINE RUN

HOWE TOWNSHIP, Forest, PA

Built 2015 Load: 32.7 t ADT: 139

T-442 SOLIDA ROAD

Good

Over: WILDCAT RUN

0.02 Mi SW of T-443, Clarion, PA

Built 2015 Load: 32.7 t ADT: 50

Old Gettysburg Pk

Good

Over: Yellow Breeches Creek

1 mi E. of Williams Grove, York, PA

Built 2015 Load: 32.7 t ADT: 2,447

T-477

Good

Over: PA TPK (I-476)

N of Telford Near Co lin, Montgomery, PA

Built 2015 Load: 32.7 t ADT: 200

PA 96

Good

Over: BUFFALO RUN

2.7 MI S OF MANNS CHOICE, Bedford, PA

Built 2015 Load: 32.7 t ADT: 1,847

Store Lane

Good

Over: W. Br. Concococheague Cr

1 MI. NE of SR 4006, Franklin, PA

Built 2015 Load: 32.7 t ADT: 250

Hog Island road

Good

Over: Hog Island Stream

Near UPS Warehouse 3808F2, Delaware, PA

Built 2001 Load: 32.7 t ADT: 500

GRANGE ROAD

Good

Over: TRIB. TO PIGEON CREEK

BENTLEYVILLE RD INTERSECT, Washington, PA

Built 2016 Load: 32.7 t ADT: 1,000

SR 3015

Good

Over: TR SHOBERS RUN

4 MI S OF BEDFORD SPRINGS, Bedford, PA

Built 2016 Load: 32.7 t ADT: 163

SR 4015

Good

Over: BR QUEMAHONING CREEK

QUECREEK, Somerset, PA

Built 2016 Load: 32.7 t ADT: 350

SR 2046 High Rock

Good

Over: Muddy Creek

High Rock, York, PA

Built 2016 Load: 32.7 t ADT: 152

FORT MIFFLIN ROAD

Good

Over: EAGLE CREEK 3699-E9

PHILA INTL AIRPORT, Philadelphia, PA

Built 1997 Load: 32.7 t ADT: 3,736

Main St (PA 75)

Good

Over: Horse Valley Run

EAST WATERFORD, Juniata, PA

Built 2018 Load: 32.7 t ADT: 622

N Mill Rd SR 1027

Good

Over: Ross Run

Village of Pottsgrove, Northumberland, PA

Built 2017 Load: 32.7 t ADT: 334

W.WYOMISSING AVE.

Good

Over: WYOMISSING CREEK

W.WYOMISSING AVE., Berks, PA

Built 2018 Load: 32.7 t ADT: 1,359

ADAMS AVE

Good

Over: DECKER RUN

TYRONE BOROUGH, Blair, PA

Built 2017 Load: 32.7 t ADT: 1,815

PA 662 (LR 06124)

Good

Over: Maiden Creek

5 Mi E of Shoemakersville, Berks, PA

Built 2017 Load: 32.7 t ADT: 4,121

ZION CHURCH ROAD

Good

Over: TWO MILE RUN

SW OF LIGONIER, Westmoreland, PA

Built 2016 Load: 32.7 t ADT: 75

Green Hill Road

Good

Over: Zacharias Creek

.22M S of SR 73- 3143B07, Montgomery, PA

Built 1980 Load: 32.7 t ADT: 500

US222;BeaverValley

Good

Over: Beaver Creek

New Providence, Lancaster, PA

Built 2017 Load: 32.7 t ADT: 10,291

T-858 Mt. Zion Rd

Good

Over: Kooser Run

Bakersville, Somerset, PA

Built 2017 Load: 32.7 t ADT: 50

EAST LAURIER PLACE

Good

Over: BRNCH OF MEADOWBROOK RUN

E OF LAURIER PLACE, Delaware, PA

Built 1994 Load: 32.7 t ADT: 90

UNITY TERRACE

Good

Over: STONEY CREEK

W OF MITCHELL AVE 3697-H6, Delaware, PA

Built 1980 Load: 32.7 t ADT: 1,000

GRADYVILLE RD

Good

Over: HUNTER RUN

W OF SR 252 3586-F1, Delaware, PA

Built 2015 Load: 32.7 t ADT: 2,000

US 219

Good

Over: SR2027 & TRIB CASSELMAN

PINE HILL NB, Somerset, PA

Built 2018 Load: 32.7 t ADT: 2,137

SR 19 FRANKLIN ST.

Good

Over: OVER MUNNEL RUN

COOLSPRING TOWNSHIP, Mercer, PA

Built 2018 Load: 32.7 t ADT: 7,208

SR 318 W.MDLSX-MRC

Good

Over: SHENANGO RIVER

WEST MIDDLESEX BOROUGH, Mercer, PA

Built 2018 Load: 32.7 t ADT: 4,394

SR 4016

Good

Over: LICK CREEK

10 MI N OF FORKSKVILLE, Sullivan, PA

Built 2019 Load: 32.7 t ADT: 531

Showing 13,301-13,350 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.