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: T-508

Middlesex Twp., Cumberland, PA

Built 2017 Load: 34.7 t ADT: 21,102

Library Road

Good

Over: Piney Fork Creek

50 South of SR 3004, Allegheny, PA

Built 2020 Load: 34.7 t ADT: 13,254

Rosemont Avenue

Good

Over: Darby Creek

1Mile SE US 1 ADC 21 D3, Delaware, PA

Built 2017 Load: 34.7 t ADT: 3,340

Neshannock Fall Rd

Good

Over: Hottenbaugh Run

1/2 Mi. NW of SR 1010, Lawrence, PA

Built 2017 Load: 34.7 t ADT: 292

Russellton-Dorsey

Good

Over: Cunningham Run

15 E of Int. w/ SR 1013, Allegheny, PA

Built 2017 Load: 34.7 t ADT: 1,525

S.R. 2009

Good

Over: TRIB TO SUSQUEHANNA RVR

VILLAGE OF WINFIELD, Union, PA

Built 2017 Load: 34.7 t ADT: 2,292

T-452 Ice Plant Rd

Good

Over: Clearfield Creek

1 MI W. of Syberton, Cambria, PA

Built 2017 Load: 34.7 t ADT: 190

T-520 Zion Road

Good

Over: Yellow Breeches Creek

3N Mt. Holl Springs/S.Mdd, Cumberland, PA

Built 2017 Load: 34.7 t ADT: 2,073

T341 BURKEY ROAD

Good

Over: HONEY CREEK

BTW T305 & SR3004, Lawrence, PA

Built 2021 Load: 34.7 t ADT: 50

SR 850- PA 850

Good

Over: WILLOW RUN

MCCULLOUCHS MILLS, Juniata, PA

Built 2017 Load: 34.7 t ADT: 236

SR 1003 BLUE JAY R

Good

Over: OVER BLUE JAY CREEK

HOWE TOWNSHIP, Forest, PA

Built 2018 Load: 34.7 t ADT: 556

ON TSR 534

Good

Over: HORNING RUN

1.5 MI NW CUBA MILLS, Juniata, PA

Built 2018 Load: 34.7 t ADT: 798

SR 4031

Good

Over: BEAVERDAM CREEK

1.5 MI W OF QUEEN, Bedford, PA

Built 2018 Load: 34.7 t ADT: 204

SR4012

Good

Over: McMurray Run

1.3mi E SR 8 Intersect., Butler, PA

Built 2018 Load: 34.7 t ADT: 803

NOBLESTOWN ROAD

Good

Over: BRANCH ROBINSON RUN

1 MI.N.E./WASH.CO.LINE, Allegheny, PA

Built 2019 Load: 34.7 t ADT: 3,098

KNOWLTON ROAD

Good

Over: CHESTER CREEK TRAIL

3/4 MI. E. PA452 3696D10, Delaware, PA

Built 2016 Load: 34.7 t ADT: 5,241

Getz Road

Good

Over: Wind Gap Creek

1 MI. East of PA 115, Northampton, PA

Built 2020 Load: 34.7 t ADT: 100

Bear Run Trail

Good

Over: Carpenter Run

Tioga State Forest, Tioga, PA

Built 2020 Load: 34.7 t ADT: 10

SR 3034

Good

Over: Middle Creek

LAKE TWP .8M W TR 296, Wayne, PA

Built 2020 Load: 34.7 t ADT: 44

SR 2066

Good

Over: Stitts Run

210ft SW SR 2058 Intersec, Armstrong, PA

Built 2020 Load: 34.7 t ADT: 4,213

PA 31

Good

Over: TR.STONY CREEK

0.9 MILES WEST OF SR 160, Somerset, PA

Built 2022 Load: 34.7 t ADT: 2,353

Cowpens Road

Good

Over: S. Br. Laurel Run

Toboyne Twp, Perry, PA

Built 2020 Load: 34.7 t ADT: 25

Mt Eagle Trail Rd

Good

Over: Wiconisco Creek

S of SR209 E of SR325, Schuylkill, PA

Built 2020 Load: 34.7 t ADT: 400

T378 WEST LOOP RD

Good

Over: OLD TOWN RUN

4 MI.SE.OF HOLLIDAYSBURG, Blair, PA

Built 2022 Load: 34.7 t ADT: 595

N CHARLOTTE ST

Good

Over: TRIB. TO MINISTER CREEK

PASS RT 461092 3027-G3, Montgomery, PA

Built 2021 Load: 34.7 t ADT: 7,599

US 222(LR 157)

Good

Over: Schaefer Run

1 MI.E.OF BERKS CO.LINE, Lehigh, PA

Built 2021 Load: 34.7 t ADT: 23,383

SR 1051

Good

Over: Butler Run

BULLSKIN TOWNSHIP, Fayette, PA

Built 2021 Load: 34.7 t ADT: 431

CHESTNUT STREET

Good

Over: AMTRAK/NORFOLK SOUTHERN

500 FT N Boot Rd 3471-J10, Chester, PA

Built 2021 Load: 34.7 t ADT: 8,125

T-330 Heisey Road

Good

Over: W Br Conococheague

3.5SE MERCERSBURG/CONOCOC, Franklin, PA

Built 2021 Load: 34.7 t ADT: 257

SR 4013

Good

Over: HOMERS GAP RUN

0.4 MI. E. OF SR 4015, Blair, PA

Built 2022 Load: 34.7 t ADT: 1,046

SR 0070

Good

Over: SR 3037

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 2022 Load: 34.7 t ADT: 27,178

SR 2024 (LR 39007)

Good

Over: Laurel Run

MILL ROAD, Lehigh, PA

Built 2023 Load: 34.7 t ADT: 2,837

SR 2011

Good

Over: EAST BRANCH RICHARDS RUN

GERMANY NO.2, Indiana, PA

Built 1978 Load: 35.0 t ADT: 1,505

T-851 EAST RUN RD

Good

Over: LITTLE MAHONING CREEK

BTW T880 & T673, Indiana, PA

Built 1961 Load: 35.0 t ADT: 141

PA100 (LR486)

Good

Over: LITTLE LEHIGH CREEK

0.2 MI.S.OF SR 3001, Lehigh, PA

Built 1957 Load: 35.0 t ADT: 9,198

SR 2002

Good

Over: EAST BRANCH POTATO CREEK

BETULA, McKean, PA

Built 1962 Load: 35.0 t ADT: 133

SR 1001 FREDONIA R

Good

Over: OVER LITTLE SHENANGO R

PERRY TOWNSHIP, Mercer, PA

Built 1955 Load: 35.0 t ADT: 920

BEAR RUN ROAD

Good

Over: LAUREL RUN

NEAR SR 45 INTERSECT, Union, PA

Built 1935 Load: 35.0 t ADT: 15

SR 2011

Good

Over: LITTLE TENMILE CREEK

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1961 Load: 35.0 t ADT: 1,601

SR 4035

Good

Over: GEORGES RUN

CANTON TOWNSHIP, Washington, PA

Built 1953 Load: 35.0 t ADT: 354

I-76

Good

Over: RANDOLPH STREET

RANDOLPH OVERPASS 37G06, Philadelphia, PA

Built 1957 Load: 35.0 t ADT: 80,588

SR 3075

Good

Over: BRANCH OF SEWICKLEY CRK

HEMPFIELD TWP., Westmoreland, PA

Built 2003 Load: 35.0 t ADT: 549

SR 568

Good

Over: LITTLE MUDDY CREEK

SR568 OVER L.MUDDY CR., Berks, PA

Built 2005 Load: 35.0 t ADT: 4,510

Wall Street T-597

Good

Over: PIGEON CREEK

100 EAST OF SR 481, Washington, PA

Built 2006 Load: 35.0 t ADT: 200

SR 2008

Good

Over: Pohopoco Ck

Parryville-Centre St., Carbon, PA

Built 2009 Load: 35.0 t ADT: 233

HOLME AVENUE

Good

Over: CONRAIL-BUSTLETON BRANCH

1 MI. E. U.S.-1 3482G01, Philadelphia, PA

Built 2011 Load: 35.0 t ADT: 19,397

SR 2047

Good

Over: S Branch of Saucon Creek

Landis Mill Road, Lehigh, PA

Built 2010 Load: 35.0 t ADT: 1,571

SR 4004

Good

Over: Brush Creek

0.1 mi E of SR 0130, Westmoreland, PA

Built 2010 Load: 35.0 t ADT: 3,272

SR2012 LTHIA VL RD

Good

Over: BR TUNKHANNOCK CREEK

CLINTON TWP 1.2M S TR 6, Wyoming, PA

Built 2011 Load: 35.0 t ADT: 282

SR 0062

Good

Over: LITTLE HICKORY CREEK

HICKORY TWP, Forest, PA

Built 2011 Load: 35.0 t ADT: 1,581

Showing 13,901-13,950 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.