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

PA TPK (I-76)

Good

Over: SR 0034

North Middleton Twp., Cumberland, PA

Built 2017 Load: 38.9 t ADT: 21,102

NAVY WAY ROAD

Good

Over: PA 476 - TURNPIKE

SOUTH OF AIRPORT, Luzerne, PA

Built 2017 Load: 38.9 t ADT: 4,613

T-812 MARR ROAD

Good

Over: COLES CREEK

0.75M SW TRI MILLS, Columbia, PA

Built 2017 Load: 38.9 t ADT: 205

PA 241; Bainbridge

Good

Over: Conoy Creek

0.75 MI.SW ELIZABETHTOWN, Lancaster, PA

Built 2017 Load: 38.9 t ADT: 5,706

Kulp Road T-526

Good

Over: Pigeon Creek

3MI.S of Pottstown3138K9, Chester, PA

Built 2017 Load: 38.9 t ADT: 450

PA 194; SR 0194

Good

Over: MUD RUN

2.8 MI.S. BIG DAM, York, PA

Built 2017 Load: 38.9 t ADT: 3,771

HELL HOLLOW ROAD

Good

Over: DOTTERS CREEK

500 FT W OF T-446, Monroe, PA

Built 2017 Load: 38.9 t ADT: 348

TWP RD 529

Good

Over: Smith Creek

Franklin Township, Greene, PA

Built 2017 Load: 38.9 t ADT: 100

SR 155 - PA 155

Good

Over: COWLEY RUN

1 MI N SIZERVILLE, Cameron, PA

Built 2017 Load: 38.9 t ADT: 1,571

US 22 (LR 771)

Good

Over: Lehigh River

Lehigh River Bridge, Lehigh, PA

Built 2017 Load: 38.9 t ADT: 81,907

US 22 (LR 771)

Good

Over: Leh. Canal SR 1007 NSR

Lehigh Canal Bridge, Lehigh, PA

Built 2017 Load: 38.9 t ADT: 81,907

SR 3021

Good

Over: NESCOPECK CREEK

BUTLER TWP 300 S SR 3040, Luzerne, PA

Built 2017 Load: 38.9 t ADT: 2,371

SR 2008 MIDDLE RD

Good

Over: SR 0029 TR 29

HANOVER TWP OVER TR 29, Luzerne, PA

Built 2017 Load: 38.9 t ADT: 6,100

I-95 SB

Good

Over: I295&276;RP B E F G 2049

NEAR I-276 3262H10, Bucks, PA

Built 2018 Load: 38.9 t ADT: 41,939

Crossover Blvd.

Good

Over: Branch of French Creek

1/2M Twnshp Rd. 3252-C7, Chester, PA

Built 2018 Load: 38.9 t ADT: 500

US 219

Good

Over: SR 2031

3.1 MILE NE OF GARRETT, Somerset, PA

Built 2018 Load: 38.9 t ADT: 2,137

US 219

Good

Over: SR 2031

3.1 MILE N OF GARRETT, Somerset, PA

Built 2018 Load: 38.9 t ADT: 2,038

SR 59-PA 59

Good

Over: BLACKSMITH RUN

1 MI W SMETHPORT, McKean, PA

Built 2018 Load: 38.9 t ADT: 2,170

SR 3001

Good

Over: WEST CREEK

HOWARD, Cameron, PA

Built 2018 Load: 38.9 t ADT: 198

SR 4028

Good

Over: Redstone Creek

2.9mi W from SR 0051, Fayette, PA

Built 2017 Load: 38.9 t ADT: 1,209

21st Street

Good

Over: Vine Street Expy (I-676)

S of B Frank Pkwy 3590-C7, Philadelphia, PA

Built 2018 Load: 38.9 t ADT: 13,020

T-342 (TWP.BR # 3)

Good

Over: SUGAR RUN

SGL #36 1.7 MI S.BARCLAY, Bradford, PA

Built 2018 Load: 38.9 t ADT: 50

E. Factoryville

Good

Over: Waltz Creek

0.3 MI West of SR 1015, Northampton, PA

Built 2019 Load: 38.9 t ADT: 400

Schaeffer Road

Good

Over: Willow Creek

1/2 MI East of Rt 222, Berks, PA

Built 2019 Load: 38.9 t ADT: 2,748

PA 248 (LR 471)

Good

Over: Hokendauqua Creek

PETERSVILLE, Northampton, PA

Built 2019 Load: 38.9 t ADT: 7,207

SR 453-PA 453

Good

Over: LITTLE CLEARFIELD CREEK

OLANTA, Clearfield, PA

Built 2019 Load: 38.9 t ADT: 540

SR 449-PA 449

Good

Over: PINE CREEK

BROOKLAND, Potter, PA

Built 2019 Load: 38.9 t ADT: 533

Huffman Farm Road

Good

Over: Red Mill Brook

Elk State Forest, McKean, PA

Built 2019 Load: 38.9 t ADT: 10

PA 116; SR 0116

Good

Over: Willoughby Run

Southwest of Gettysburg, Adams, PA

Built 2019 Load: 38.9 t ADT: 9,265

T-357

Good

Over: Shannon Run

PERRY TOWNSHIP, Greene, PA

Built 2019 Load: 38.9 t ADT: 50

WOODLAND AVENUE

Good

Over: SEPTA

W.47TH ST. 36J01, Philadelphia, PA

Built 2020 Load: 38.9 t ADT: 1,500

T-387 (CO.BR.39)

Good

Over: Sugar Run

STATE GAME LANDS NO.172, Bradford, PA

Built 2020 Load: 38.9 t ADT: 50

SR 4010(Syner Rd)

Good

Over: QUITTAPAHILLA RIVER

SYNER ROAD, Lebanon, PA

Built 2022 Load: 38.9 t ADT: 1,003

PA 722; State Rd

Good

Over: PA 283; SR 0300

1.5 mi.S.W. E.Petersburg, Lancaster, PA

Built 2020 Load: 38.9 t ADT: 11,368

Aluta Mill Road

Good

Over: Bushkill Creek

East of SR 4023/4025, Northampton, PA

Built 2020 Load: 38.9 t ADT: 50

SR 1023

Good

Over: S BR EQUINUNK CRK

MNCHSTR TP .8 M S SR 1018, Wayne, PA

Built 2020 Load: 38.9 t ADT: 90

SR 255-PA 255

Good

Over: KERSEY RUN

BYRNEDALE, Elk, PA

Built 2020 Load: 38.9 t ADT: 4,787

PA TPK (I-476)

Good

Over: SR1007 LR46051

WEST OF SOUDERTON, Montgomery, PA

Built 2017 Load: 38.9 t ADT: 50,307

ALLENS LANE

Good

Over: SEPTA CHESTNUT HILL W BR

CHESTNUT HILL 3479 J01, Philadelphia, PA

Built 2020 Load: 38.9 t ADT: 3,728

HESS MILL ROAD

Good

Over: W. BR. WHITE CLAY CREEK

1/4 Mi W PA-841 3909-G8, Chester, PA

Built 2020 Load: 38.9 t ADT: 500

SR 4028(LR06046SP)

Good

Over: MILL CREEK

STATE ST., Berks, PA

Built 2021 Load: 38.9 t ADT: 4,849

MOYER ROAD

Good

Over: EAST BR. PERKIOMEN CREEK

0.55 MI NE OF SR 63, Montgomery, PA

Built 2021 Load: 38.9 t ADT: 1,090

I-83; SR 0083 NB

Good

Over: SR 0851 EB & WB

0.7 MI.E. OF SHREWSBURY, York, PA

Built 2021 Load: 38.9 t ADT: 17,900

I-83; SR 0083 SB

Good

Over: SR 0851 EB & WB

0.7 MI.E. OF SHREWSBURY, York, PA

Built 2021 Load: 38.9 t ADT: 17,795

PA TPK (I-76)

Good

Over: SR 0019 US19

WEST OF WARRENDALE, Allegheny, PA

Built 2021 Load: 38.9 t ADT: 29,582

PA TPK (I-76)

Good

Over: Mt. Pleasant Road

WEST OF WARRENDALE TOLL, Allegheny, PA

Built 2021 Load: 38.9 t ADT: 34,106

T-615 STATE RD

Good

Over: Swarr Run

1200 NORTH OF SR 4020, Lancaster, PA

Built 2021 Load: 38.9 t ADT: 5,300

I-83; SR 0083

Good

Over: T-586; Megoulas Blvd.

.5 MI.N. OF UNION DEPOSIT, Dauphin, PA

Built 2021 Load: 38.9 t ADT: 74,815

LINCOLN AVENUE

Good

Over: W.BR. OF NESHAMINY CREEK

Hatfield Borough 3032-C6, Montgomery, PA

Built 2021 Load: 38.9 t ADT: 5,001

HORSESHOE TRAIL

Good

Over: PICKERING CREEK

.14 MI. W. PA113 3362K06, Chester, PA

Built 2022 Load: 38.9 t ADT: 500

Showing 15,801-15,850 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.