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

ON TSR 536

Good

Over: WEST BRANCH PINE CREEK

GERMANIA STATION, Potter, PA

Built 1996 Load: 53.5 t ADT: 247

SR 3011

Good

Over: CASSELMAN RIVER

MARKLETON, Somerset, PA

Built 1986 Load: 53.5 t ADT: 106

PA TPK (I-76) WB

Good

Over: SR 1015

2.5 MI SW NEW BALTIMORE, Somerset, PA

Built 1980 Load: 53.5 t ADT: 30,600

SR 0006

Good

Over: ELK RUN

8 MI. E. OF MANSFIELD, Tioga, PA

Built 1985 Load: 53.5 t ADT: 2,800

SR 3022

Good

Over: ASAPH RUN

VILLAGE OF ASAPH, Tioga, PA

Built 1941 Load: 53.5 t ADT: 164

PAINTER LEETONIA R

Good

Over: CEDAR RUN

VILLAGE OF LEETONIA, Tioga, PA

Built 1997 Load: 53.5 t ADT: 45

SR 227 CHERRY RUN

Good

Over: OVER CHERRY RUN

CORNPLANTER TOWNSHIP, Venango, PA

Built 1989 Load: 53.5 t ADT: 1,508

SR 0670 TR 670

Good

Over: JOHNSON CREEK

MT PLSANT TWP 2M N TR 247, Wayne, PA

Built 1993 Load: 53.5 t ADT: 400

SR 0030

Good

Over: COALPIT RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1974 Load: 53.5 t ADT: 7,674

PA TPK (I-76)

Good

Over: SR 0981

CARPENTERTOWN, Westmoreland, PA

Built 2002 Load: 53.5 t ADT: 34,232

SR 3003

Good

Over: BOWMANS CREEK

EATON TWP .1 M W TR 29, Wyoming, PA

Built 1994 Load: 53.5 t ADT: 898

MAIN STREET

Good

Over: TRIB. MEHOOPANY CK

FORKSTON VILLAGE, Wyoming, PA

Built 1912 Load: 53.5 t ADT: 100

S.WHARF RD (T919)

Good

Over: TRIB STONY RUN

.1S ANDERSONTOWN/T.STN RN, York, PA

Built 2001 Load: 53.5 t ADT: 50

RAMP A

Good

Over: PA 581 SR0581

RAMP A SR0581, Cumberland, PA

Built 1995 Load: 53.5 t ADT: 5,758

SR 3028 OWEGO TPK

Good

Over: MIDDLE CREEK

PALMYRA TWP 300 W SR2004, Wayne, PA

Built 1998 Load: 53.5 t ADT: 2,606

RAMP B

Good

Over: SCHUYLKILL EXPWY RAMP D

K OF PRUSSIA 3366G07, Montgomery, PA

Built 2002 Load: 53.5 t ADT: 19,128

SR 3029 WEST ROAD

Good

Over: OVER TEMPLE CREEK BRANCH

ELK CREEK TOWNSHIP, Erie, PA

Built 2001 Load: 53.5 t ADT: 268

PA TPK (I-276 EB)

Good

Over: SR0023 SR3025 NSRR SEPTA

EAST OF BRIDGEPORT, Montgomery, PA

Built 2000 Load: 53.5 t ADT: 65,138

PA 33 NB

Good

Over: SR 2007

OVER HOPE ROAD, Northampton, PA

Built 2001 Load: 53.5 t ADT: 22,312

PA 33 SB

Good

Over: SR 2007

OVER HOPE ROAD, Northampton, PA

Built 2001 Load: 53.5 t ADT: 24,278

RAMP I

Good

Over: RAMP D / 3366-H7

.3MI.S.GULPH RD 3366H07, Montgomery, PA

Built 2003 Load: 53.5 t ADT: 12,778

PA 329-LR175

Good

Over: QUARRY

NOR-BATH BOULEVARD, Northampton, PA

Built 2001 Load: 53.5 t ADT: 12,964

PA 92; SR 0092

Good

Over: MUD RUN

3 MI. S.E. OF YORK SPRING, Adams, PA

Built 2001 Load: 53.5 t ADT: 7,928

SR 22-US 22

Good

Over: SR 3002 ARCH ROCK ROAD

3 MI WEST OF MIFFLINTOWN, Juniata, PA

Built 2002 Load: 53.5 t ADT: 10,347

US 15 NB AND SB

Good

Over: TRIB SUSQUEHANNA RIVER

BORO OF LEWISBURG, Union, PA

Built 2002 Load: 53.5 t ADT: 17,555

SR 850-PA 850

Good

Over: LAUREL RUN

HONEY GROVE, Juniata, PA

Built 2004 Load: 53.5 t ADT: 342

T-329 DRONEY RD

Good

Over: E BR TUNUNGWANT CREEK

500 FT EAST OF SR 4001, McKean, PA

Built 2004 Load: 53.5 t ADT: 200

SR 4027

Good

Over: LITTLE REDSTONE CR.

JEFFERSON TWP., Fayette, PA

Built 2004 Load: 53.5 t ADT: 360

SMALSHBARRICK ROAD

Good

Over: TRIB. TO MIDDLECREEK

1 MILE NORTH OF KREAMER, Snyder, PA

Built 2004 Load: 53.5 t ADT: 560

SR 4010

Good

Over: ROARING RUN

1 MILE NW OF ENID, Fulton, PA

Built 2005 Load: 53.5 t ADT: 133

SR 3002 WB

Good

Over: SR 6022

4 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2005 Load: 53.5 t ADT: 4,181

3RD STREET(SR 291)

Good

Over: CHESTER CREEK

JUST WEST OF RT352 43G05, Delaware, PA

Built 1999 Load: 53.5 t ADT: 12,119

SR 220

Good

Over: FOX RUN

VILLAGE OF TIVOLI, Lycoming, PA

Built 2006 Load: 53.5 t ADT: 2,842

RIVER ROAD

Good

Over: MCCLANAHAN RUN

0.1 MI NW OF HEATHER HTS, Lawrence, PA

Built 2006 Load: 53.5 t ADT: 247

T-597

Good

Over: SR 222;GRIZZLY RD.

T-597/SR 222&GRIZZLY RD, Berks, PA

Built 2004 Load: 53.5 t ADT: 604

SR 0182 LEADER HTS

Good

Over: I83 SR OO83

LEADER HEIGHTS, York, PA

Built 2006 Load: 53.5 t ADT: 13,350

YELLOW SPRINGS RD.

Good

Over: PICKERING CREEK

NR CHESTER SPRINGS 13J12, Chester, PA

Built 2006 Load: 53.5 t ADT: 647

SR 4008 NIAGRA DR.

Good

Over: OUTLET TO HOWELL POND

0.2 MILES WEST OF TR 247, Wayne, PA

Built 2007 Load: 53.5 t ADT: 45

MINSI TRAIL

Good

Over: BRANCH MORRIS RUN

.2MI.S.BEDMINISTER 2809C9, Bucks, PA

Built 2007 Load: 53.5 t ADT: 1,693

T-374 MORRIS ROAD

Good

Over: LICKING CREEK

0.1 mi S int w/ SR 0058, Clarion, PA

Built 2008 Load: 53.5 t ADT: 50

T-504 (HOPFER RD.)

Good

Over: ELM BROOK

SCOTT TWP 300 E. PA 438, Lackawanna, PA

Built 2008 Load: 53.5 t ADT: 20

T-517 ULLERY ROAD

Good

Over: LITTLE WHITELEY CREEK

CUMBERLAND, Greene, PA

Built 2005 Load: 53.5 t ADT: 50

SR 1036

Good

Over: HOWELLS RUN @LAKE ROWENA

0.15 MILE WEST FROM US 22, Cambria, PA

Built 2009 Load: 53.5 t ADT: 10,529

CEDAR HILL ROAD

Good

Over: TRAFFIC ROUTE 309

1.5 MI. N. SPRINGHOUSE, Montgomery, PA

Built 2009 Load: 53.5 t ADT: 2,192

1004/ Goodyear Rd

Good

Over: Trib Latimore Creek

2.5 Mi west of Latimore, Adams, PA

Built 2010 Load: 53.5 t ADT: 340

SR 3008

Good

Over: MUGSER RUN

1 MI EAST OF FISHERDALE, Columbia, PA

Built 2010 Load: 53.5 t ADT: 282

SR 0038

Good

Over: S FORK LIT SCRUBGRASS

SEDWICKS MILL, Butler, PA

Built 2010 Load: 53.5 t ADT: 2,085

PA-309 BYPASS

Good

Over: BETHLEHEM PIKE

3/4 MI. S. PA-63 3145E09, Montgomery, PA

Built 2010 Load: 53.5 t ADT: 26,869

BOWERS BRIDGE ROAD

Good

Over: LITTLE CONEWAGO CREEK

1.4S YRKHVN/L. CONEWAGO, York, PA

Built 2010 Load: 53.5 t ADT: 789

PA TPK (I-76)

Good

Over: LR22019 SR3001

LOWER SWATARA TWP, Dauphin, PA

Built 2007 Load: 53.5 t ADT: 26,249

Showing 19,351-19,400 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.