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-244 PA-244

Good

Over: BRIZZEE HOLLOW RUN

OSWAYO, Potter, PA

Built 2007 Load: 39.9 t ADT: 279

SR 0019

Good

Over: DUNKARD CREEK

PERRY TOWNSHIP, Greene, PA

Built 2007 Load: 39.9 t ADT: 930

SR 6-US 6

Good

Over: ALLEGHENY RIVER

1 MILE EAST OF SR 155, McKean, PA

Built 2008 Load: 39.9 t ADT: 3,317

BL OF THE ALLIES

Good

Over: FORBES AV MAURICE ST

1 MILE E OF BIRMINGHAM BR, Allegheny, PA

Built 2008 Load: 39.9 t ADT: 13,158

SR 3069 Wendel Rd

Good

Over: PA TURNPIKE (I-76)

EAST OF IRWIN INTERCHANGE, Westmoreland, PA

Built 2007 Load: 39.9 t ADT: 4,693

SR 4029

Good

Over: Burgetts Fork

0.1 miles S of SR 18, Washington, PA

Built 2008 Load: 39.9 t ADT: 2,280

OLD ROUTE 6

Good

Over: US 6 EB & WB

BROKENSTRAW TWP., Warren, PA

Built 2009 Load: 39.9 t ADT: 1,353

SR 3011

Good

Over: BELL RUN

GRAMPIAN, Clearfield, PA

Built 2009 Load: 39.9 t ADT: 130

I-70 EBL

Good

Over: T390 LODGE ROAD

CRYSTAL SPRINGS, Fulton, PA

Built 2009 Load: 39.9 t ADT: 6,344

SR 3034

Good

Over: S. BR. BLACKLICK CREEK

3 MILE EAST OF NANTY GLO, Cambria, PA

Built 2009 Load: 39.9 t ADT: 660

GULF LAB ROAD

Good

Over: INTERSTATE 76

OVER TURNPIKE, Allegheny, PA

Built 2009 Load: 39.9 t ADT: 2,390

SR 1021

Good

Over: Muddy Creek

N of Carmichaels, Greene, PA

Built 2009 Load: 39.9 t ADT: 1,776

SR 0188

Good

Over: South Fork Tenmile Creek

E of Waynesburg, Greene, PA

Built 2009 Load: 39.9 t ADT: 4,152

LINDEN STREET

Good

Over: JORDAN CREEK & RAILROAD

BETWEEN 3RD & 4TH STREETS, Lehigh, PA

Built 2010 Load: 39.9 t ADT: 8,100

BUTLER PIKE

Good

Over: BLACK RUN

LIBERTY TOWNSHIP, Mercer, PA

Built 2010 Load: 39.9 t ADT: 2,373

SR 0106

Good

Over: DUNDAFF CREEK

CLIFFORD TWP .1M W SR2008, Susquehanna, PA

Built 2009 Load: 39.9 t ADT: 2,441

897 White Horse Pk

Good

Over: Pequea Creek

N of 30 along 897, Lancaster, PA

Built 2010 Load: 39.9 t ADT: 1,973

SR 4021 Atlantic

Good

Over: OVER HOLLOW RUN

SUGAR GROVE TWP, Mercer, PA

Built 2010 Load: 39.9 t ADT: 520

GRUBBS RD

Good

Over: PINE CREEK

GRUBBS ROAD, Allegheny, PA

Built 2010 Load: 39.9 t ADT: 2,100

SR 143

Good

Over: MAIDEN CREEK

VIRGINVILLE, Berks, PA

Built 2010 Load: 39.9 t ADT: 1,605

Concord Road

Good

Over: OVER PINE RUN

UNION TWP., Erie, PA

Built 2010 Load: 39.9 t ADT: 706

SR 168

Good

Over: CSX RAILROAD

230 FT EAST OF SR 3015, Lawrence, PA

Built 2010 Load: 39.9 t ADT: 2,041

T-583 DUCK POND RD

Good

Over: LAUREL HILL CREEK

2 MI. NE. of BAKERSVILLE, Somerset, PA

Built 2010 Load: 39.9 t ADT: 75

BETHEL ROAD

Good

Over: PA TPK N.E. EXT. (I-476)

NEAR CTR. SQUARE 3143K10, Montgomery, PA

Built 2008 Load: 39.9 t ADT: 3,588

AIRPORT HILL ROAD

Good

Over: SANKEY RUN

200 SE OF SR 422, Lawrence, PA

Built 2011 Load: 39.9 t ADT: 1,350

SR 4049

Good

Over: COLES CREEK

3.5 MI NORTH OF BENTON, Columbia, PA

Built 2011 Load: 39.9 t ADT: 443

T-952 JACKSON TWP

Good

Over: HAMMOND CREEK

VILLAGE OF MILLERTON, Tioga, PA

Built 2011 Load: 39.9 t ADT: 100

SR 44

Good

Over: UPPER PINE BOTTOM RUN

2.5 MI NW OF WATERVILLE, Lycoming, PA

Built 2011 Load: 39.9 t ADT: 371

T-386 CTY BR#20

Good

Over: MAHONING CREEK

1.0 MI NE OF MAUSDALE, Montour, PA

Built 2011 Load: 39.9 t ADT: 45

PA TPK (TOLL 43)

Good

Over: UNT 4 to Dunlap Creek

West of Exit M22, Fayette, PA

Built 2009 Load: 39.9 t ADT: 1,000

STATE ROAD

Good

Over: BIG RUN

300 SOUTH OF SR 1012, Lawrence, PA

Built 2011 Load: 39.9 t ADT: 4,001

SR 955 Iroquios Av

Good

Over: OVER SEVEN MILE CREEK

HARBOR CREEK TWP, Erie, PA

Built 2010 Load: 39.9 t ADT: 4,343

Smith Road

Good

Over: Swamp Creek

1.9 Mi E PA-100 2915-E9, Montgomery, PA

Built 2011 Load: 39.9 t ADT: 400

TWIN BRIDGE RD

Good

Over: DENNIS CREEK

CROTTLESTOWN RD INTERSECT, Franklin, PA

Built 2012 Load: 39.9 t ADT: 307

SR 879 - PA 879

Good

Over: BILGER RUN

2 MI E GRAMPIAN, Clearfield, PA

Built 2012 Load: 39.9 t ADT: 3,047

SR 75-PA 75

Good

Over: NARROWS BR TUSCARORA CRK

2 MI S WATERLOO, Juniata, PA

Built 2012 Load: 39.9 t ADT: 751

PA 764

Good

Over: BURGOON RUN

0.2 MILE SOUTH OF ALTOONA, Blair, PA

Built 2012 Load: 39.9 t ADT: 9,345

SR 0858 TR 858

Good

Over: APOLACON CREEK

LTL MEADOWS .3M N SR 4018, Susquehanna, PA

Built 2012 Load: 39.9 t ADT: 704

SR 0040

Good

Over: SR 0079

SR 0040 over SR 0079, Washington, PA

Built 2012 Load: 39.9 t ADT: 5,982

CURRY HOLLOW RD

Good

Over: CSX OWNED

PLEASANT HILLS-OVER RR, Allegheny, PA

Built 2012 Load: 39.9 t ADT: 24,259

US 219

Good

Over: W BR SUSQUEHANNA RIVER

GARMANTOWN (NORTH END), Cambria, PA

Built 2012 Load: 39.9 t ADT: 2,370

SR 0050

Good

Over: Cross Creek

1.3 mi E from SR 0231, Washington, PA

Built 2012 Load: 39.9 t ADT: 1,529

SR 1017 (LR48028)

Good

Over: OUGHOUGHTON CREEK

1 MI N. OF RICHMOND, Northampton, PA

Built 2013 Load: 39.9 t ADT: 1,079

SR 0056

Good

Over: Norfolk S R/R Boro Road

0.1 mi W from SR 0711, Westmoreland, PA

Built 2013 Load: 39.9 t ADT: 5,937

Buttermilk Hill Rd

Good

Over: McCune Run

CANAL TOWNSHIP, Venango, PA

Built 2013 Load: 39.9 t ADT: 144

SR 3013 MAIN ST

Good

Over: CP RAIL/D&H RAILROAD

225 FT S OAK ST INTERSCT, Lackawanna, PA

Built 2013 Load: 39.9 t ADT: 12,920

PA 100 (LR 06026)

Good

Over: W.BR.PERKIOMEN CK

0.4 MI.N. OF PASSMORE, Berks, PA

Built 2014 Load: 39.9 t ADT: 18,812

SR 0739 TR 739

Good

Over: OUTLET MCCONNELL LAKE

BLOOMG GRV TWP 1M S I-84, Pike, PA

Built 2014 Load: 39.9 t ADT: 4,276

SR 1005

Good

Over: TEA CREEK

REEDSVILLE, Mifflin, PA

Built 2014 Load: 39.9 t ADT: 5,997

PA 287

Good

Over: MARSH CREEK

3 MI N OF WELLSBORO, Tioga, PA

Built 2015 Load: 39.9 t ADT: 4,387

Showing 16,251-16,300 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.