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

RAMP D

Good

Over: US 22/322

WEST OF DAUPHIN BORO, Dauphin, PA

Built 1999 Load: 40.8 t ADT: 4,794

T-304; R FRANKS RD

Good

Over: PA TPK (TOLL 43)

ABOUT 3MI. S OF TOLLBOTH, Fayette, PA

Built 1998 Load: 40.8 t ADT: 200

LINCOLN HW

Good

Over: OVER LITTLE TRAVERSE CR.

AT SR 3023, Beaver, PA

Built 2001 Load: 40.8 t ADT: 5,138

SR 89 LAKE CREEK

Good

Over: OVER SIXTEEN MILE CREEK

NORTH EAST BOROUGH, Erie, PA

Built 2001 Load: 40.8 t ADT: 5,673

TIDIOUTE CREEK RD

Good

Over: OVER TIDIOUTE CREEK

DEERFIELD TOWNSHIP, Warren, PA

Built 2001 Load: 40.8 t ADT: 353

SR 3003

Good

Over: GEORGES CREEK

SPRINGHILL/NICHOLSON TWP., Fayette, PA

Built 2001 Load: 40.8 t ADT: 135

BRIDGE 2709 T-912

Good

Over: OVER WOLF CREEK E.BRANCH

PATTERSON SCHL. WOLF CK., Mercer, PA

Built 2001 Load: 40.8 t ADT: 67

TR 11 NB/SB

Good

Over: OVER MAHANTANGO CREEK

JUNIATA-SNYDER CO LINE, Snyder, PA

Built 2001 Load: 40.8 t ADT: 13,527

BEAVER VALLEY RD

Good

Over: MCMICHAEL CREEK

0.1 MI SOUTH OF RT 209, Monroe, PA

Built 2001 Load: 40.8 t ADT: 207

STREET ROAD

Good

Over: LONGWOOD GARDENS ACCESS

ADL LONGWOOD GARD 39K12, Chester, PA

Built 2001 Load: 40.8 t ADT: 8,037

SR 14

Good

Over: NORTH BRANCH SUGAR CREEK

1.6 MI N. COLUMBIA X-RDS, Bradford, PA

Built 2002 Load: 40.8 t ADT: 1,523

GLENROSE ROAD

Good

Over: BUCK RUN

NEAR GLENROSE 28C12, Chester, PA

Built 2002 Load: 40.8 t ADT: 198

SR 1019

Good

Over: OVER BRIAR CREEK

0.5 MI. W. OF BERWICK, Columbia, PA

Built 2002 Load: 40.8 t ADT: 1,754

PA TPK (TOLL 43)

Good

Over: SR 2025

BRIDGE @ DONORA INT., Washington, PA

Built 2000 Load: 40.8 t ADT: 5,533

PA TPK (TOLL 43)

Good

Over: T-854 TRIB. PIGEON CR.

2 MI.S.OF MONONGAHELA INT, Washington, PA

Built 2001 Load: 40.8 t ADT: 5,533

PA TPK (TOLL 43)

Good

Over: SR2023 PIGEON C RR

N.OF DONORA/CHARLERGI INT, Washington, PA

Built 2001 Load: 40.8 t ADT: 5,533

SR 8014 RAMP C

Good

Over: ORT RD 322 & 22 RP A & H

0.5 MI. N OF LEWISTOWN, Mifflin, PA

Built 2003 Load: 40.8 t ADT: 2,106

SR 22-US 22

Good

Over: SR 322 EB/TRIB KISH CR

0.5 MI W LEWISTOWN, Mifflin, PA

Built 2003 Load: 40.8 t ADT: 1,415

I-80 WBL.

Good

Over: OVER HEMLOCK CREEK

0.5 MILE W. OF BUCKHORN, Columbia, PA

Built 2004 Load: 40.8 t ADT: 13,961

WESTTOWN ROAD

Good

Over: EAST BR CHESTER CREEK

WESTTOWN 32K12, Chester, PA

Built 2004 Load: 40.8 t ADT: 2,071

SR 1035 Brunnervil

Good

Over: HAMMER CREEK

0.5 MI. N. OF BRUNNERVILL, Lancaster, PA

Built 2004 Load: 40.8 t ADT: 1,528

TOWNSHIP ROAD 515

Good

Over: MUDDY CREEK

SOUTH OF 21 NEAR KHEDIVE, Greene, PA

Built 2004 Load: 40.8 t ADT: 25

US 30

Good

Over: RAYSTOWN BR.JUNIATA RIV.

WOLFSBURG, Bedford, PA

Built 2005 Load: 40.8 t ADT: 8,312

SR 2023

Good

Over: OVER RDG BLMT/NORTHERNRR

1.5 MI S OF MOUNT CARMEL, Northumberland, PA

Built 2005 Load: 40.8 t ADT: 2,125

SR 22-US 22

Good

Over: SR 3002

LEWISTOWN BY-PASS, Mifflin, PA

Built 2005 Load: 40.8 t ADT: 4,711

I-80 EBL

Good

Over: OVER HEMLOCK CREEK

0.5 MILE W. OF BUCKHORN, Columbia, PA

Built 2005 Load: 40.8 t ADT: 13,445

OLD SORBER MTN RD

Good

Over: BOWMANS CREEK

VILLAGE OF STULL, Wyoming, PA

Built 2004 Load: 40.8 t ADT: 50

T-684 (HART ROAD)

Good

Over: E. BR. OF WYALUSING CRK

1.3 MILES NE OF FAIRDALE, Susquehanna, PA

Built 2005 Load: 40.8 t ADT: 50

SR 15 NB/SB

Good

Over: I-180 VIA BELLA SEDA R.R

WMSPT SPUI MARKET STREET, Lycoming, PA

Built 2006 Load: 40.8 t ADT: 26,309

SR 15 SB

Good

Over: 2ND AVE & NORFOLK SO. RR

S.END OF MARKET ST.BRIDGE, Lycoming, PA

Built 2006 Load: 40.8 t ADT: 13,277

T-634 S.STATE ST.

Good

Over: OVER JACKSON RUN

CONEWANGO TOWNSHIP, Warren, PA

Built 2006 Load: 40.8 t ADT: 500

DEEP RUN ROAD

Good

Over: DEEP RUN

DUBLIN;BEDMINSTER 16C11, Bucks, PA

Built 2006 Load: 40.8 t ADT: 1,397

SR 3010

Good

Over: WHITE CREEK

0.1 MILE WEST OF SR 3021, Susquehanna, PA

Built 2007 Load: 40.8 t ADT: 263

Strasburg Pike

Good

Over: Mill Creek

0.25 MI S. Of Fertility, Lancaster, PA

Built 2006 Load: 40.8 t ADT: 7,982

T-576 BIGLEY RD

Good

Over: TOBY CREEK

0.35 mi N int. w/ SR1005, Clarion, PA

Built 2007 Load: 40.8 t ADT: 50

CHURCH ROAD

Good

Over: AMTRAK; PHILA-HBG.BRANCH

NR. LANCASTER AV 3478-E10, Montgomery, PA

Built 2007 Load: 40.8 t ADT: 13,320

SR 0371

Good

Over: E BR OF LACKAWANNA RIVER

HERRICK TWP 386 E TR 171, Susquehanna, PA

Built 2008 Load: 40.8 t ADT: 977

SR 0029

Good

Over: SILVER LAKE CREEK

FRANKLIN TWP@JCT SR 4008, Susquehanna, PA

Built 2008 Load: 40.8 t ADT: 2,460

SR0022 EB & WB

Good

Over: SR0259

CLYDE, Indiana, PA

Built 2008 Load: 40.8 t ADT: 13,356

TWP RD 417

Good

Over: HARTS RUN

ALEPPO/RICHHILL TWP LINE, Greene, PA

Built 2003 Load: 40.8 t ADT: 25

PA TURNPIKE (I-76)

Good

Over: SUSQ R AMT SR0230.NSRR

FAIRVIEW TWP, York, PA

Built 2007 Load: 40.8 t ADT: 16,200

SR 1001

Good

Over: SCHROCK RUN

1 MI. W. OF SHANKSVILLE, Somerset, PA

Built 2008 Load: 40.8 t ADT: 1,643

PA TURNPIKE (I-76)

Good

Over: SUSQ R AMT SR230 NSRR

FAIRVIEW TWP, York, PA

Built 2007 Load: 40.8 t ADT: 15,565

BUTLER PIKE

Good

Over: PINE RUN

FINDLEY TOWNSHIP, Mercer, PA

Built 2009 Load: 40.8 t ADT: 2,720

T-364 STRICKLER RD

Good

Over: LITTLE CHIQUES CRK TRIB

500 FT SOUTH OF SR 0772, Lancaster, PA

Built 2008 Load: 40.8 t ADT: 100

KINSMEN ROAD

Good

Over: BR. SUGAR CREEK

GREENE TOWNSHIP, Mercer, PA

Built 2009 Load: 40.8 t ADT: 1,159

FRANCIS ROAD

Good

Over: FRANCIS BRANCH

CORNER AT LYCOMING/POTTER, Tioga, PA

Built 2009 Load: 40.8 t ADT: 25

SR 4018

Good

Over: Cross Creek

0.9 mi E of WV state line, Washington, PA

Built 2010 Load: 40.8 t ADT: 182

SR 2050

Good

Over: DUNDAFF CREEK

316 FEET EAST OF TR 106, Susquehanna, PA

Built 2010 Load: 40.8 t ADT: 360

SR 1003 Blue Jay R

Good

Over: OVER TIONESTA CREEK

HOWE TWP, Forest, PA

Built 2010 Load: 40.8 t ADT: 556

Showing 16,651-16,700 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.