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 4005

Good

Over: WEST BRANCH COXES CREEK

2.5 MI W OF SOMERSET, Somerset, PA

Built 2014 Load: 35.6 t ADT: 510

SR 1005

Good

Over: TRUMPS RUN

0.5 MI NE MIDDLEBURG, Snyder, PA

Built 2014 Load: 35.6 t ADT: 2,018

SR 1009

Good

Over: FALL BROOK

FELL TWP JCT TR 106, Lackawanna, PA

Built 2014 Load: 35.6 t ADT: 411

U.S. 202

Good

Over: NORTH VALLEY ROAD

2 MI. E. PA 29 23J6, Chester, PA

Built 2014 Load: 35.6 t ADT: 92,313

SR 3010

Good

Over: York Run

0.6 mi W from SR 0119, Fayette, PA

Built 2014 Load: 35.6 t ADT: 1,216

SR 0435 TR 435

Good

Over: SR 0348 TR 348

ROARING BRK TP OVR TR 348, Lackawanna, PA

Built 2014 Load: 35.6 t ADT: 5,908

KOCH RD

Good

Over: POHOPOCO CREEK

0.8 MI N OF TRACHSVILLE, Carbon, PA

Built 2015 Load: 35.6 t ADT: 200

BEATTY ROAD

Good

Over: TRIB. TO FOURMILE RUN

SOUTH OF BEATTY, Westmoreland, PA

Built 2015 Load: 35.6 t ADT: 1,000

SR 2027

Good

Over: Ninemile Run

0.3 mi N from SR 0982, Westmoreland, PA

Built 2015 Load: 35.6 t ADT: 2,097

Adamson Road

Good

Over: Patterson Run

Marianna Borough, Washington, PA

Built 2015 Load: 35.6 t ADT: 30

T-860

Good

Over: Ten Mile Creek

Morgan Township, Greene, PA

Built 2015 Load: 35.6 t ADT: 250

T-450 RICK ROAD

Good

Over: ELK CREEK

300 NORTH OF W ROAD, Erie, PA

Built 2015 Load: 35.6 t ADT: 350

ON TSR 530

Good

Over: CLARA CREEK

CLARA, Potter, PA

Built 2015 Load: 35.6 t ADT: 162

ON TSR 530

Good

Over: FISHING CREEK

1 MI N ROULETTE, Potter, PA

Built 2015 Load: 35.6 t ADT: 290

SR 4012

Good

Over: TRIBUTARY ULSH GAP RUN

2 MI NE OF BANNERVILLE, Snyder, PA

Built 2015 Load: 35.6 t ADT: 492

STREETS RUN ROAD

Good

Over: STREETS RUN

50NORTH/BRENTWOOD RD., Allegheny, PA

Built 2015 Load: 35.6 t ADT: 9,788

Abey Road

Good

Over: Georgetown Br. Town Crk

1.3 Mi. S. Ragged Mt. Rd., Bedford, PA

Built 2015 Load: 35.6 t ADT: 20

SR 903 (LR13046)

Good

Over: LEHIGH RIVER/NS RR

Jim Thorpe Bridge, Carbon, PA

Built 2016 Load: 35.6 t ADT: 8,554

Thompson Run Road

Good

Over: Thompson Run

2656 N.E. OF SR 2053, Allegheny, PA

Built 2016 Load: 35.6 t ADT: 884

PA 36

Good

Over: MILL RUN

CITY OF ALTOONA, Blair, PA

Built 2016 Load: 35.6 t ADT: 10,037

TROOPER ROAD

Good

Over: SCHUYLKILL RIVER TRAIL

BETZWOOD 27J09 / 3366C03, Montgomery, PA

Built 2016 Load: 35.6 t ADT: 109

SR 0106 SH

Good

Over: TUNKHANNOCK CREEK

LENOX TWP .1 M E TR 92, Susquehanna, PA

Built 2016 Load: 35.6 t ADT: 2,874

Tulip Drive

Good

Over: Brush Creek

150 West of SR 1019, Beaver, PA

Built 2016 Load: 35.6 t ADT: 405

ON TSR 804

Good

Over: COLD STREAM RUN

PHILIPSBURG, Centre, PA

Built 2016 Load: 35.6 t ADT: 2,435

Blackhawk Road

Good

Over: Brush Run

150 SW Watts Mill Rd, Beaver, PA

Built 2016 Load: 35.6 t ADT: 1,150

Log Tavern Rd

Good

Over: Dwarfs Kill Creek

DINGMAN TWP .2 M E TR 739, Pike, PA

Built 2017 Load: 35.6 t ADT: 3,216

Merwinsburg Rd

Good

Over: POHOPOCO CREEK

T-939 S.OF MERWINSBURG, Monroe, PA

Built 2016 Load: 35.6 t ADT: 5,532

PA 994

Good

Over: THREE SPRINGS CREEK

0.4 MILE EAST OF TR 747, Huntingdon, PA

Built 2016 Load: 35.6 t ADT: 1,847

Lardington Road

Good

Over: Lardington Run

1/2 mi. NW of SR1028, Allegheny, PA

Built 2017 Load: 35.6 t ADT: 241

SR 0087 SH

Good

Over: Trib to Loyalsock Creek

0.1 MI N OF FARRAGUT, Lycoming, PA

Built 2017 Load: 35.6 t ADT: 5,790

INTERSTATE 95

Good

Over: UNRUH AVENUE

3/4 MI. S. RTE 73 3482C7, Philadelphia, PA

Built 2016 Load: 35.6 t ADT: 251,200

GUYS RUN RD

Good

Over: Guys Run

1028N.OF FREEPORT RD., Allegheny, PA

Built 2017 Load: 35.6 t ADT: 3,661

WALTON RD

Good

Over: LOBBS RUN

100 SOUTHEAST OF SR 3018, Allegheny, PA

Built 2017 Load: 35.6 t ADT: 567

Veterans Way

Good

Over: MONTOUR CREEK

GREEN PARK, Perry, PA

Built 2017 Load: 35.6 t ADT: 2,384

Coudersport Pike

Good

Over: SB Oswayo Creek

1 MI SE HEBRON CENTRE, Potter, PA

Built 2017 Load: 35.6 t ADT: 1,428

Thatcher Rd

Good

Over: HENDRICKS CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 2018 Load: 35.6 t ADT: 31

WILLIAM FLYNN HWY

Good

Over: WEST BRANCH DEER CREEK

@ INTERSECTION W/SR 0910, Allegheny, PA

Built 2018 Load: 35.6 t ADT: 33,174

SR 3005

Good

Over: WILDCAT RUN

4 MILE SOUTH FROM PA 326, Bedford, PA

Built 2016 Load: 35.6 t ADT: 260

PA 743; SR 0743

Good

Over: CONEWAGO CREEK

MT JOY TP-DAUPHIN CO LINE, Lancaster, PA

Built 2016 Load: 35.6 t ADT: 15,627

PA 443; CLEMENT AV

Good

Over: Indiantown Run

INDIANTOWN GAP M.R., Lebanon, PA

Built 2017 Load: 35.6 t ADT: 1,959

Virginia drive

Good

Over: Rapp Run

Virginia Drive 3257K9, Montgomery, PA

Built 2017 Load: 35.6 t ADT: 7,000

SR 4013

Good

Over: DUNNINGS CREEK

2 MI N OF NEW PARIS, Bedford, PA

Built 2017 Load: 35.6 t ADT: 482

Horner Road T-402

Good

Over: Marsh Creek

2.5 MI SW of Barlow, Adams, PA

Built 2017 Load: 35.6 t ADT: 50

T-398 (BACK ROAD)

Good

Over: WHITE DEER HOLE CREEK

0.6 MI. SE OF ELIMSPORT, Lycoming, PA

Built 2017 Load: 35.6 t ADT: 108

SR 522

Good

Over: Middle Creek

Village of Kreamer, Snyder, PA

Built 2017 Load: 35.6 t ADT: 10,260

I-95 (NB)

Good

Over: RMP-G I-276 SR2049 & 413

NEAR PA TURNPIKE 3262H10, Bucks, PA

Built 2018 Load: 35.6 t ADT: 41,690

US 219

Good

Over: TRIB LAUREL RUN

1.36 MILE N OF SR 3010, Somerset, PA

Built 2018 Load: 35.6 t ADT: 4,846

I-276

Good

Over: Mill Creek

West of Int. for Rt. 13, Bucks, PA

Built 2017 Load: 35.6 t ADT: 46,280

RUPERT ROAD

Good

Over: HARTENSTINE CREEK

0.32 MI N OF SR 4031, Montgomery, PA

Built 2018 Load: 35.6 t ADT: 3,387

SR 1047 S Cocalico

Good

Over: Cocalico Creek

1 MI. S.E. COCALICO, Lancaster, PA

Built 2018 Load: 35.6 t ADT: 2,813

Showing 14,251-14,300 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.