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

SR4003(LR 48061)

Good

Over: INDIAN CREEK

2 MI.N.OF PENNSVILLE, Northampton, PA

Built 2013 Load: 45.4 t ADT: 822

SR 0119 NB

Good

Over: Jacobs Creek SW PA R/R

3.9 mi N from SR 0982, Westmoreland, PA

Built 2013 Load: 45.4 t ADT: 7,974

PA 191 (LR 48043)

Good

Over: CONVEYOR BELT (CONRAIL)

NAZARETH BORO S.BROAD ST, Northampton, PA

Built 2014 Load: 45.4 t ADT: 9,336

Commerce Ave.

Good

Over: Big Run Tributary

0.2 mi from Frew Mill Rd., Lawrence, PA

Built 1995 Load: 45.4 t ADT: 100

Library Rd.

Good

Over: Weyman Run

SR51 and 88 Intersection, Allegheny, PA

Built 2015 Load: 45.4 t ADT: 21,171

SR 0011 TR 11

Good

Over: ABANDONED RAILROAD

LARKSVLE BO 1 M E SR 1004, Luzerne, PA

Built 2015 Load: 45.4 t ADT: 17,812

NEWPORT PIKE

Good

Over: VALLEY CREEK

1/4 MI. S. PA372 26H12, Chester, PA

Built 2015 Load: 45.4 t ADT: 10,974

Race Street

Good

Over: Tulpehocken Creek

W. Myerstown/ Tulpehocken, Lebanon, PA

Built 2013 Load: 45.4 t ADT: 500

Chestnut Hill Road

Good

Over: Mill Creek

5 MI NW Red Lion, York, PA

Built 2016 Load: 45.4 t ADT: 5,469

PLEASANT RIDGE RD

Good

Over: SINDELDECKER BRANCH

0.1 MI NORTH OF US 30, Fulton, PA

Built 2017 Load: 45.4 t ADT: 365

E Upper Bermudian

Good

Over: BERMUDIAN CREEK

1 MI EAST OF GARDNERS, Adams, PA

Built 2018 Load: 45.4 t ADT: 187

Marine Corp League

Good

Over: Black Hole Creek

Montgomery, Lycoming, PA

Built 2017 Load: 45.4 t ADT: 10,657

PORT-EMPORIUM RD

Good

Over: Portage Creek

LIBERTY, McKean, PA

Built 2017 Load: 45.4 t ADT: 889

SR1005

Good

Over: Crooked Creek

1 mi NE SR 286 Intersect., Indiana, PA

Built 2018 Load: 45.4 t ADT: 434

T-460 AULTMANS RUN

Good

Over: AULTMANS RUN

BTW T457 & SR286, Indiana, PA

Built 2018 Load: 45.4 t ADT: 52

PA 997; Cumb.hwy.

Good

Over: CONODOGUINET CREEK

S. OF ROXBURY, Franklin, PA

Built 2018 Load: 45.4 t ADT: 4,225

T-347 FREYTOWN RD

Good

Over: E.B. RNG. BRK.

1 MI SE OF SR 2009, Lackawanna, PA

Built 2019 Load: 45.4 t ADT: 50

I-78(LR 285SP)

Good

Over: TWP RD 798 GENSINGER RD

2 MI. E.OF KRUMSVILLE, Berks, PA

Built 2019 Load: 45.4 t ADT: 39,900

SR 2001

Good

Over: TRIB TO TOMS CREEK

LEHMAN TWP .6M S SR 200, Pike, PA

Built 2019 Load: 45.4 t ADT: 2,800

SR 1011 Mt. Zion R

Good

Over: TRIB OF SWATARA CREEK

1 MI.S. OF MT.ZION, Lebanon, PA

Built 2019 Load: 45.4 t ADT: 3,441

Sunset Drive

Good

Over: Oughoughton Creek

N of 5 Points Richmond Rd, Northampton, PA

Built 2019 Load: 45.4 t ADT: 250

SR 2030

Good

Over: Gorby Run

CALIFORNIA BOROUGH, Washington, PA

Built 2019 Load: 45.4 t ADT: 1,013

MAPLE STREET

Good

Over: TRIB.E. BR. ANTIETAM CR

150 FT N. OF CEMETERY AVE, Franklin, PA

Built 2009 Load: 45.4 t ADT: 100

T-652 CHURCH ROAD

Good

Over: HUSKINS RUN

900 feet south of SR-2003, Armstrong, PA

Built 2020 Load: 45.4 t ADT: 50

STATION ROAD NORTH

Good

Over: UNNAMED TRIB TO WEBB CR

.1 MI. N. U.S.322 3694H10, Delaware, PA

Built 2020 Load: 45.4 t ADT: 1,010

SR 4029

Good

Over: Dillie Run

WASHINGTON TOWNSHIP, Greene, PA

Built 2022 Load: 45.4 t ADT: 305

Dell Road T-702

Good

Over: SANDY RUN

170 FEET EAST OF PA 915, Bedford, PA

Built 2021 Load: 45.4 t ADT: 224

SR 8030

Good

Over: Lick Run

70E On/Off Ramps @ SR3010, Westmoreland, PA

Built 2021 Load: 45.4 t ADT: 212

T-488 PERKINSON RD

Good

Over: OVER WOLF RUN

0.5 MI.SW OF KRATZERVILLE, Snyder, PA

Built 2023 Load: 45.4 t ADT: 100

PLEASANTVILLE ROAD

Good

Over: LITTLE BULL CREEK

3/4 MI SE OF SR 1032, Allegheny, PA

Built 1984 Load: 45.7 t ADT: 1,118

RAMP MT-C

Good

Over: SR 0376 EB WB

RAMP MT-C OVER I-376, Allegheny, PA

Built 1992 Load: 45.7 t ADT: 5,647

I-81; SR 0081

Good

Over: BORDNERSVILLE RD; T-446

.5 MI.S.W. OF LICKDALE, Lebanon, PA

Built 1967 Load: 45.7 t ADT: 10,544

3018

Good

Over: TRIB MAHANTANGO CREEK

4 MI SOUTH OF PILLOW, Northumberland, PA

Built 2010 Load: 45.7 t ADT: 476

INTERSTATE 376

Good

Over: BUSINESS RT. 22

NEAR TURNPIKE INT., Allegheny, PA

Built 2011 Load: 45.7 t ADT: 26,622

SR 1022 (APPL.1)

Good

Over: PERKIOMEN CREEK

WEIGNERS BRIDGE, Berks, PA

Built 2013 Load: 45.7 t ADT: 1,581

PA 447 (LR324)

Good

Over: SPRUCE CABIN RUN

1MI.S.OF CANADENSIS, Monroe, PA

Built 2014 Load: 45.7 t ADT: 1,737

SOUTH WOLF ROCK RD

Good

Over: TUB MILL RUN

FORBES STATE FOREST, Somerset, PA

Built 2014 Load: 45.7 t ADT: 25

Twentyeighth Div H

Good

Over: Deer Creek

SHIPPENVILLE STATION, Clarion, PA

Built 2016 Load: 45.7 t ADT: 3,374

ENGLISHMAN HILL RD

Good

Over: Mounts Creek

BULLSKIN TOWNSHIP, Fayette, PA

Built 2016 Load: 45.7 t ADT: 2,623

SR 239

Good

Over: OVER WEST CREEK

3.5 MILES NW OF BENTON, Columbia, PA

Built 2016 Load: 45.7 t ADT: 510

POPLAR STREET

Good

Over: WEST COCALICO CREEK

0.5 MI NW DENVER BORO, Lancaster, PA

Built 2017 Load: 45.7 t ADT: 486

GRD ARMY OF RP HW

Good

Over: WARNER BROOK

MARVINDALE, McKean, PA

Built 2017 Load: 45.7 t ADT: 1,852

MAIN ST (SR 1004)

Good

Over: RHOADS CREEK

SHANKSVILLE BORO, Somerset, PA

Built 2018 Load: 45.7 t ADT: 952

SR 11

Good

Over: Salt Lick Creek

N MILFRD TP .2M S SR 1018, Susquehanna, PA

Built 2017 Load: 45.7 t ADT: 4,977

SR1019

Good

Over: Rough Run

0.7 mi E SR 2008 Interse, Butler, PA

Built 2018 Load: 45.7 t ADT: 640

SR 3040 / TR 318

Good

Over: SR 0070

South Huntingdon Township, Westmoreland, PA

Built 2019 Load: 45.7 t ADT: 287

RAMP 79S_576E

Good

Over: PA TPK (0576)

South Fayette Twp, Allegheny, PA

Built 2020 Load: 45.7 t

BRIDGE 613 T-859

Good

Over: OVER NORTH DEER CREEK

CREEK RD. FRENCH CREEK TP, Mercer, PA

Built 1965 Load: 46.0 t ADT: 97

SR 2001

Good

Over: Rudolph Run

0.5 mi N of WV state line, Greene, PA

Built 2009 Load: 46.0 t ADT: 13

HERRON AV

Good

Over: LOWRIES RUN

75 S OF RT 65, Allegheny, PA

Built 2013 Load: 46.0 t ADT: 1,000

Showing 18,051-18,100 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.