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 3004 (LR 48003)

Good

Over: SAUCON CREEK

WATER STREET HELLERTOWN, Northampton, PA

Built 2019 Load: 35.0 t ADT: 6,682

SR 64-PA 64

Good

Over: BIG FISHING CREEK

LAMAR, Clinton, PA

Built 2019 Load: 35.0 t ADT: 6,382

ASHMEAD ROAD

Good

Over: TOOKANY CREEK

1.0 MI NW SR 232 3481-D2, Montgomery, PA

Built 2019 Load: 35.0 t ADT: 12,035

SR 2009 S. Market

Good

Over: E. Br of Hammer Creek

Schaefferstown, Lebanon, PA

Built 2020 Load: 35.0 t ADT: 747

T-469 SAWMILL RD

Good

Over: SWIFT RUN

1.5 MI.SW OF TROXELVILLE, Snyder, PA

Built 2020 Load: 35.0 t ADT: 150

PA TPK (I-476)

Good

Over: T-400

W OF TELFORD NEAR PA 563, Montgomery, PA

Built 2020 Load: 35.0 t ADT: 50,307

SR 0356

Good

Over: Trib. Kiskiminetas River

ALLEGHENY TOWNSHIP, Westmoreland, PA

Built 2023 Load: 35.0 t ADT: 11,747

CREEK ROAD

Good

Over: LITTLE NESHAMINY CREEK

1.2 Mi W of PA263 3147-J3, Bucks, PA

Built 2021 Load: 35.0 t ADT: 400

SR 2053

Good

Over: Branch of Daniels Run

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 2021 Load: 35.0 t ADT: 63

PA 443(LR 140)

Good

Over: Schuylkill River

COLUMBIA STREET, Schuylkill, PA

Built 2023 Load: 35.0 t ADT: 10,065

SR 322-US 322

Good

Over: LITTLE LAUREL RUN

1 MI E PHILIPSBURG, Clearfield, PA

Built 2021 Load: 35.0 t ADT: 10,529

PA 230; W.Main st.

Good

Over: Trib To Donegal Creek

ONE MILE W OF FLORIN, Lancaster, PA

Built 2021 Load: 35.0 t ADT: 9,779

MENGUS MILL ROAD

Good

Over: PINEY CREEK

1.5 S.LITLTWN;PINEY CREEK, Adams, PA

Built 2021 Load: 35.0 t ADT: 600

WASHINGTON LANE

Good

Over: BR. PENNYPACK CREEK

NEAR JENKINTOWN 32H05, Montgomery, PA

Built 2022 Load: 35.0 t ADT: 842

SR 3009

Good

Over: Branch of Buffalo Creek

EAST FINLEY TOWNSHIP, Washington, PA

Built 2022 Load: 35.0 t ADT: 242

SR 2002 LEESBRG RD

Good

Over: OVER NESHANNOCK CREEK

SPRINGFIELD TOWNSHIP, Mercer, PA

Built 2023 Load: 35.0 t ADT: 663

GROVE ROAD

Good

Over: IRISH CREEK

NW OF DAUBERVILLE, Berks, PA

Built 1959 Load: 35.3 t ADT: 538

SR 2009

Good

Over: PANTHER LICK RUN

VILLAGE OF HOLLENBACK, Bradford, PA

Built 1961 Load: 35.3 t ADT: 171

TRAFFIC ROUTE 309

Good

Over: SEPTA (BETHLEHEM BRANCH)

EAST OF TELFORD 20D07, Bucks, PA

Built 1967 Load: 35.3 t ADT: 30,042

REDFIELD BRIDGE

Good

Over: DELAWARE CANAL

W. OF SR 263 RIVER BRIDGE, Bucks, PA

Built 2016 Load: 35.3 t ADT: 10

T-464 HARTER RD

Good

Over: MUDDY CREEK

0.9 MI SE OF SR 2010, Centre, PA

Built 1960 Load: 35.3 t ADT: 80

BEAR MEADOWS ROAD

Good

Over: GALBRAITH GAP RUN

31 BEAR MEADOWS ROAD, Centre, PA

Built 1932 Load: 35.3 t ADT: 65

SR 3013

Good

Over: NORTH BRANCH BROWNS RUN

GERMAN TOWNSHIP, Fayette, PA

Built 1916 Load: 35.3 t ADT: 573

T823 HAMMERTOWN RD

Good

Over: LITTLE CONESTOGA CREEK

600 FT NORTH OF SR 1044, Lancaster, PA

Built 1935 Load: 35.3 t ADT: 310

EAST JOHNSON HWY.

Good

Over: BR SAW MILL RUN/3255-J10

NEAR NORRISTOWN 29C06, Montgomery, PA

Built 1924 Load: 35.3 t ADT: 7,883

SR 3035

Good

Over: TENMILE CREEK

MORRIS TOWNSHIP, Washington, PA

Built 1961 Load: 35.3 t ADT: 323

T-688 Sposato Road

Good

Over: MONTGOMERY RUN

150 FROM TR 735, Washington, PA

Built 1913 Load: 35.3 t ADT: 80

BRIDGE KC4

Good

Over: KINGS CREEK TRIB.

200 SOUTH OF T869, Washington, PA

Built 1949 Load: 35.3 t ADT: 100

BRIDGE SC4

Good

Over: SUGAR CREEK RUN TRIB.

1.1 MILES SOUTH OF TR 844, Washington, PA

Built 1966 Load: 35.3 t ADT: 150

SR 0286

Good

Over: SR 0066

WASHINGTON TOWNSHIP, Westmoreland, PA

Built 1957 Load: 35.3 t ADT: 2,839

I-81 NB (LR 1005)

Good

Over: OAK GROVE ROAD

1 MI N OF EXIST 100 (31), Schuylkill, PA

Built 2004 Load: 35.3 t ADT: 11,127

I-81 SB (LR 1005)

Good

Over: OAK GROVE ROAD

1 MI. N. OF EXIT 100 (31), Schuylkill, PA

Built 2004 Load: 35.3 t ADT: 10,509

PA 248 (LR 175)

Good

Over: MONOCACY CREEK

WEST MAIN STREET, Northampton, PA

Built 2004 Load: 35.3 t ADT: 10,293

SR 0019

Good

Over: WHITELEY CR

WHITELEY TWP, Greene, PA

Built 2005 Load: 35.3 t ADT: 441

PA 512

Good

Over: Trib. to Bushkill Creek

PLAINFIELD, Northampton, PA

Built 2008 Load: 35.3 t ADT: 17,614

PA 427 MAIN STR.

Good

Over: SUGAR CREEK

COOPERSTOWN BORO, Venango, PA

Built 2009 Load: 35.3 t ADT: 1,041

T580 SHAFFER RUN R

Good

Over: SHAFFERS RUN

1.3 MILE N OF FAIRHOPE, Somerset, PA

Built 2011 Load: 35.3 t ADT: 11

SR 1005

Good

Over: SNAKESPRING VALLEY RUN

.25 MI.S.OF VALLEYMILL, Bedford, PA

Built 2011 Load: 35.3 t ADT: 331

SR 0022 EB

Good

Over: Stony Run

1.2 mi W from SR 0217, Westmoreland, PA

Built 2011 Load: 35.3 t ADT: 12,293

SR 0022 WB

Good

Over: Stony Run

1.2 mi W from SR 0217, Westmoreland, PA

Built 2011 Load: 35.3 t ADT: 12,746

SR 4009

Good

Over: Brush Creek

0.7 mi N from SR 4008, Westmoreland, PA

Built 2011 Load: 35.3 t ADT: 4,966

SR 3012

Good

Over: RAYSTOWN BR. JUNIATA RIV

2 MILE WEST OF KEGG, Bedford, PA

Built 2011 Load: 35.3 t ADT: 349

SR 3001

Good

Over: WILD BOY RUN

CONRAD, Potter, PA

Built 2011 Load: 35.3 t ADT: 135

T580 SHAFFER RUN R

Good

Over: SHAFFERS RUN

2.7 MILE N OF FAIRHOPE, Somerset, PA

Built 2011 Load: 35.3 t ADT: 11

T-596 FLATTS ROAD

Good

Over: LEBOEUF CREEK

1800 NE OF SR 0197, Erie, PA

Built 2011 Load: 35.3 t ADT: 377

SR 3001

Good

Over: Dutch Fork Buffalo Creek

3.4 mi N from SR 0040, Washington, PA

Built 2012 Load: 35.3 t ADT: 68

SR 0068

Good

Over: SUGAR CREEK

3.9 Mi. W East Brady, Armstrong, PA

Built 2012 Load: 35.3 t ADT: 1,801

PA 611(LR 156)

Good

Over: FRYS RUN

AT ROYAL MANOR ROAD, Northampton, PA

Built 2012 Load: 35.3 t ADT: 3,678

SR 1006

Good

Over: WHITE HALL CREEK

4 MI N OF WASHINGTONVILLE, Montour, PA

Built 2012 Load: 35.3 t ADT: 174

EASTBROOK ROAD

Good

Over: POTTER RUN

725 SOUTH OF SR 0208, Lawrence, PA

Built 2012 Load: 35.3 t ADT: 2,676

Showing 14,001-14,050 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.