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 1031 GALILEE RD

Good

Over: BEAVER DAM CREEK

DAMASCUS TWP 1 M N TR 371, Wayne, PA

Built 2010 Load: 40.8 t ADT: 314

T-650 CTY BR. 110

Good

Over: MUNCY CREEK

1.5 MI N PICTURE ROCKS, Lycoming, PA

Built 2010 Load: 40.8 t ADT: 56

SR 4007 Bear Lake

Good

Over: BEAR CREEK

FREEHOLD TWP, Warren, PA

Built 2010 Load: 40.8 t ADT: 447

SR 28 SB

Good

Over: CSX (AVRR)

500 S of Etna interchng, Allegheny, PA

Built 2009 Load: 40.8 t ADT: 30,365

WATSON STREET

Good

Over: SHOBERS RUN

BEDFORD BOROUGH, Bedford, PA

Built 2010 Load: 40.8 t ADT: 1,369

ENTRANCE ROAD

Good

Over: LOWER PINE BOTTOM RUN

TIADAGHTON RSC MGMT CTR, Lycoming, PA

Built 2009 Load: 40.8 t ADT: 20

FAIRVIEW ROAD

Good

Over: TWEED CREEK

LOWER OXFORD TWP 3906F4, Chester, PA

Built 2010 Load: 40.8 t ADT: 211

Washington Twp Blv

Good

Over: Red Run

0.13 Mi North of Sr 0016, Franklin, PA

Built 2010 Load: 40.8 t ADT: 3,087

SR 0173

Good

Over: SLIPPERY ROCK CREEK

2.3 mi. N. SR 8 Intersec., Butler, PA

Built 2011 Load: 40.8 t ADT: 5,524

SR 2069

Good

Over: PLUM CREEK

.2 mi. S. SR 210 Inter., Armstrong, PA

Built 2011 Load: 40.8 t ADT: 145

SR 0070

Good

Over: SR 2017 becomes SR 1055

2.9 mi E from SR 0519, Washington, PA

Built 2011 Load: 40.8 t ADT: 27,992

PA TPK (TOLL 43)

Good

Over: SR 0119 & SR 0051

Intersection SR 119, Fayette, PA

Built 2010 Load: 40.8 t ADT: 1,000

PA TPK Ramp S-11

Good

Over: SR 0051 SR 0119

Intersection SR 119, Fayette, PA

Built 2010 Load: 40.8 t ADT: 1,000

PA TPK (TOLL 43)

Good

Over: SR 0051

Intersection SR 119, Fayette, PA

Built 2010 Load: 40.8 t ADT: 1,000

PA TPK (TOLL 43)

Good

Over: UNT 11 to Jennings Road

West of Exit M15, Fayette, PA

Built 2008 Load: 40.8 t ADT: 1,000

PA TPK (TOLL 43)

Good

Over: UNT 4 to Dunlap Creek

West of Exit M22, Fayette, PA

Built 2009 Load: 40.8 t ADT: 1,000

PA 234; SR 0234

Good

Over: PARADISE CREEK

4 MI. W. of York, York, PA

Built 2012 Load: 40.8 t ADT: 5,253

PA TPK (TOLL 43)

Good

Over: T-601 Telegraph Road

Exit 26 Interchange, Fayette, PA

Built 2011 Load: 40.8 t ADT: 2,000

SR 0019

Good

Over: Wades Run

0.2 mi N from WV line, Greene, PA

Built 2012 Load: 40.8 t ADT: 1,564

PARK ROAD /2917E06

Good

Over: PERKIOMEN TRAIL

GREEN LANE RESER. 2917E06, Montgomery, PA

Built 2010 Load: 40.8 t ADT: 2,112

SR 4018 (APPL.745)

Good

Over: TROUT CREEK

MAIN ST. SLATEDALE, Lehigh, PA

Built 2012 Load: 40.8 t ADT: 1,698

PA 314 (LR 171)

Good

Over: SWIFTWATER CREEK

1 MI.W.OF SWIFTWATER, Monroe, PA

Built 2013 Load: 40.8 t ADT: 3,840

Laird Street

Good

Over: Jacks Run

BTW ALWINE & URANIA, Westmoreland, PA

Built 2013 Load: 40.8 t ADT: 3,915

PA 973

Good

Over: FIRST FORK

0.75 MI SW OF SALLADASBRG, Lycoming, PA

Built 2013 Load: 40.8 t ADT: 180

SR 4032

Good

Over: Bolden Run

0.9 mi E from SR 0051, Fayette, PA

Built 2013 Load: 40.8 t ADT: 219

T-523 BACK ROAD

Good

Over: ELK CREEK

1320 FT FROM INT SR 192, Centre, PA

Built 2014 Load: 40.8 t ADT: 50

Vets Mem Br

Good

Over: Beaver River

1 mi SE Fallston Br, Beaver, PA

Built 2014 Load: 40.8 t ADT: 10,220

SR 0381

Good

Over: Mill Run Reservoir

1.6 mi S from SR 0653, Fayette, PA

Built 2014 Load: 40.8 t ADT: 2,657

PA TPK (I76)

Good

Over: SR 4013

Upper Mifflin Twp., Cumberland, PA

Built 2014 Load: 40.8 t ADT: 21,102

Glendale Rd

Good

Over: Brush Creek

.29mi from Concord Ch Rd, Beaver, PA

Built 2005 Load: 40.8 t ADT: 100

US 30; Lincoln hwy

Good

Over: Back Creek

2MI. W. OF CHAMBERSBURG, Franklin, PA

Built 2015 Load: 40.8 t ADT: 9,278

BULL CREEK RD

Good

Over: BULL CREEK

4200 S.E. OF SR 1033, Allegheny, PA

Built 2015 Load: 40.8 t ADT: 2,964

Walnut St

Good

Over: Shamokin Creek

Mount Carmel Borough, Northumberland, PA

Built 2016 Load: 40.8 t ADT: 660

Dambach Ave

Good

Over: Breakneck Creek

200 N Int w/ Valencia Rd, Allegheny, PA

Built 2013 Load: 40.8 t ADT: 100

Scenic Dr (SR 481)

Good

Over: Pike Run

250 N. of Laurel Rd., Washington, PA

Built 2016 Load: 40.8 t ADT: 1,787

Bennetts Valley Rd

Good

Over: Bennett Branch

2 MI SW PENFIELD, Clearfield, PA

Built 2016 Load: 40.8 t ADT: 3,394

NESHANNOCKFALLS RD

Good

Over: LITTLE NESHANNOCK CREEK

1/2 MI. S.E. OF SR 1005, Lawrence, PA

Built 2016 Load: 40.8 t ADT: 747

PINE HILL ROAD

Good

Over: BAKEN CREEK

AT BRIDGEPORT, Perry, PA

Built 2016 Load: 40.8 t ADT: 240

Doubling Gap Rd

Good

Over: CONODOGUINET CREEK

0.8 MI NORTH OF NEWVILLE, Cumberland, PA

Built 2018 Load: 40.8 t ADT: 3,683

Broadford Rd

Good

Over: GALLEY RUN

UPPER TYRONE TOWNSHIP, Fayette, PA

Built 2017 Load: 40.8 t ADT: 559

PALMER RD(SR 3013)

Good

Over: MIDDLE RUN

GERMAN TOWNSHIP, Fayette, PA

Built 2018 Load: 40.8 t ADT: 192

Standing Stone Rd

Good

Over: MURRAY RUN

.1 MI N SR1011 CTR UNION, Huntingdon, PA

Built 2017 Load: 40.8 t ADT: 1,718

Pumping Station Rd

Good

Over: W BR OCTORARO CREEK

2 MI E OF COLLINS, Lancaster, PA

Built 2017 Load: 40.8 t ADT: 402

Moorestown Road

Good

Over: Bushkill Creek

W.MOORESTOWN RD.@ HEYER, Northampton, PA

Built 2017 Load: 40.8 t ADT: 8,474

N OLD TRAIL RD

Good

Over: Rolling Green Run

VILLAGE OF HUMMELS WHARF, Snyder, PA

Built 2017 Load: 40.8 t ADT: 5,593

GILLIGAN STREET

Good

Over: SPRING RUN

0.8 mi NW of I-81, Luzerne, PA

Built 1992 Load: 40.8 t ADT: 300

Bg Swkly Crk Rd

Good

Over: Big Sewickley Creek

0.6 Mi. NW of SR 4045, Allegheny, PA

Built 2020 Load: 40.8 t ADT: 5,239

SR0119 NB&SB

Good

Over: Yellow Creek

0.7 mi N SR 56 Intersect., Indiana, PA

Built 2018 Load: 40.8 t ADT: 15,630

T-429 CORBETT RD

Good

Over: W BR PINE CREEK

500 FT SE OF SR 2002, Potter, PA

Built 2018 Load: 40.8 t ADT: 10

SR0066

Good

Over: Crooked Creek

0.5mi S SR 2019 Intersect, Armstrong, PA

Built 2018 Load: 40.8 t ADT: 5,548

Showing 16,701-16,750 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.