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

TR107 RUSHBROOK ST

Good

Over: LACKA COUNTY RAIL AUTH

JERMYN BORO 440 E SR1023, Lackawanna, PA

Built 1995 Load: 38.1 t ADT: 4,456

SR 0019

Good

Over: RUFF CREEK

WASHINGTON TOWNSHIP, Greene, PA

Built 1998 Load: 38.1 t ADT: 3,080

SR 15 NORTH BOUND

Good

Over: OVER SR 284

1 MI.SOUTH OF BUTTONWOOD, Lycoming, PA

Built 1998 Load: 38.1 t ADT: 6,017

SR 1007

Good

Over: WARRIOR RUN CREEK

.25MI N OF MCEWENSVILLE, Northumberland, PA

Built 1998 Load: 38.1 t ADT: 1,170

Maple Lane

Good

Over: CHARTIERS CREEK

2500 WEST OF SR 19, Washington, PA

Built 1998 Load: 38.1 t ADT: 30

SR 322-US 322 E.B.

Good

Over: TWP RT 839 OAK STREET

2 MI NW MILROY, Mifflin, PA

Built 1999 Load: 38.1 t ADT: 8,370

RIDGE AVENUE

Good

Over: LIMESTONE RUN

RIDGE AVENUE, Northumberland, PA

Built 1998 Load: 38.1 t ADT: 570

SR 0079

Good

Over: TOWNSHIP ROAD 512

WASHINGTON TOWNSHIP, Greene, PA

Built 1999 Load: 38.1 t ADT: 9,454

SR 0079

Good

Over: TOWNSHIP ROAD 512

WASHINGTON TOWNSHIP, Greene, PA

Built 1999 Load: 38.1 t ADT: 9,943

SR 3006 PERRY HWY.

Good

Over: OVER SR 90 EB/WB

SPRINGFIELD TOWNSHIP, Erie, PA

Built 2000 Load: 38.1 t ADT: 2,960

SR 79 NB

Good

Over: OVER WALNUT CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 2000 Load: 38.1 t ADT: 14,288

SR 0267 TR 267

Good

Over: TRIB CHOCONUT CREEK

CHOCONUT TWP .2M S SR4002, Susquehanna, PA

Built 2000 Load: 38.1 t ADT: 2,729

SR 0228 EB & WB

Good

Over: I-79 NB&SB & SR9479

CRIDERS CORNERS, Butler, PA

Built 2000 Load: 38.1 t ADT: 44,748

T-385

Good

Over: JACKS CREEK

1200 FT NE OF T-707, Mifflin, PA

Built 2000 Load: 38.1 t ADT: 211

T361 TOTTEN HOLLOW

Good

Over: KENDALL CREEK

275 FT NE OF SR 46, McKean, PA

Built 2001 Load: 38.1 t ADT: 100

T-572 RED MILL RD

Good

Over: COWANSHANNOCK CREEK

1500 South of SR 85, Armstrong, PA

Built 2001 Load: 38.1 t ADT: 150

LIBRARY RD

Good

Over: SAW MILL RUN

300N.E. OF MCNEILLY RD, Allegheny, PA

Built 2003 Load: 38.1 t ADT: 21,171

SR 147 NB

Good

Over: OVER LIMESTONE RUN

1 MILE EAST OF MILTON, Northumberland, PA

Built 2002 Load: 38.1 t ADT: 7,959

SR 79 NB

Good

Over: OVER T-391 RUNG ROAD

UNION TOWNSHIP, Crawford, PA

Built 2003 Load: 38.1 t ADT: 6,554

SR 4021

Good

Over: CONODOGUINET CREEK

2 MI. S. BLOSERVILLE, Cumberland, PA

Built 2003 Load: 38.1 t ADT: 1,688

SR 79 SB

Good

Over: OVER T-391 RUNG ROAD

UNION TOWNSHIP, Crawford, PA

Built 2004 Load: 38.1 t ADT: 6,469

SR 208 NORTH ST.

Good

Over: OVER WOLF CREEK

GROVE CITY BOROUGH, Mercer, PA

Built 2004 Load: 38.1 t ADT: 3,022

SR 99 I-99

Good

Over: SR 3042 - US 322

4 MILE WEST STATE COLLEGE, Centre, PA

Built 2004 Load: 38.1 t ADT: 10,995

SR 192

Good

Over: BUFFALO CREEK

VILLAGE OF COWAN, Union, PA

Built 2004 Load: 38.1 t ADT: 2,120

OWL BRIDGE RD

Good

Over: LITTLE CONESTOGA CREEK

1 MI SW OF SR 3027, Lancaster, PA

Built 2003 Load: 38.1 t ADT: 600

HARMONYVILLE ROAD

Good

Over: PINE CREEK

FRENCH CREEK SP 4H7, Chester, PA

Built 2005 Load: 38.1 t ADT: 161

US 222 NB

Good

Over: SR 6222 SB

US 222 NB OVER SR6222 SB, Lehigh, PA

Built 2005 Load: 38.1 t ADT: 11,692

Plain Grove North

Good

Over: TAYLOR RUN

2.0 MI E OF SR19, Lawrence, PA

Built 2005 Load: 38.1 t ADT: 436

SR 15 SBL

Good

Over: OLD SR 15

2 MILES NORTH OF TIOGA, Tioga, PA

Built 2005 Load: 38.1 t ADT: 4,953

CEMETERY ROAD

Good

Over: DEWING CREEK

1MI MW OF LITTLE MEADOWS, Susquehanna, PA

Built 2004 Load: 38.1 t ADT: 50

SR 0029 TR 29

Good

Over: BOWMANS CREEK

MONROE TWP 932 N TR 0309, Wyoming, PA

Built 2006 Load: 38.1 t ADT: 5,974

POWELL AVE.

Good

Over: OVER CSX & NS RAILROADS

MILL CREEK TOWNSHIP, Erie, PA

Built 2006 Load: 38.1 t ADT: 3,126

SUGAR RUN RD.

Good

Over: RACCOON CREEK

1 MI.SW.OF MILLERSTOWN, Perry, PA

Built 2006 Load: 38.1 t ADT: 88

T442 CHURCH HOLLOW

Good

Over: BELL RUN

600 FT EAST OF SR 1009, McKean, PA

Built 2005 Load: 38.1 t ADT: 10

SR 1022

Good

Over: NORTH BR SUSQ RVR

ULSTER RIVER BRIDGE, Bradford, PA

Built 2007 Load: 38.1 t ADT: 2,256

SR 4020 DEPOT HILL

Good

Over: SHEHAWKEN CREEK

BUCKINGHAM TWP @JCT TR370, Wayne, PA

Built 2007 Load: 38.1 t ADT: 198

SR 219-US 219

Good

Over: BOLIVAR RUN

BRADFORD BYPASS, McKean, PA

Built 2007 Load: 38.1 t ADT: 4,717

SR 69 MAIN STREET

Good

Over: STILLWATER CREEK

SUGARGROVE BOROUGH, Warren, PA

Built 2007 Load: 38.1 t ADT: 1,637

T-424 BRYNERS MILL

Good

Over: DEER CREEK

1 mi SSE int w/ SR 322, Clarion, PA

Built 2007 Load: 38.1 t ADT: 50

SR 219-US 219

Good

Over: BOLIVAR RUN

BRADFORD BYPASS, McKean, PA

Built 2007 Load: 38.1 t ADT: 5,568

T-659 BEATTY MILL

Good

Over: BUFFALO CREEK

0.2 M W of Slate Lick RD, Armstrong, PA

Built 2008 Load: 38.1 t ADT: 75

SR 879

Good

Over: LICK RUN

2.5 MI NE CLEARFIELD, Clearfield, PA

Built 2009 Load: 38.1 t ADT: 4,230

Township Line Road

Good

Over: Swamp Creek

300 East of SR 100, Berks, PA

Built 2008 Load: 38.1 t ADT: 300

BLACK ROCK ROAD

Good

Over: DELAWARE CANAL

1400 FT EAST OF SR 2071, Bucks, PA

Built 2009 Load: 38.1 t ADT: 3,600

SR 3038

Good

Over: MARSH CREEK

MARSH CREEK/SEVEN STARS, Adams, PA

Built 2009 Load: 38.1 t ADT: 144

SR 3006

Good

Over: MILLSTONE CREEK

2 MILE SOUTH OF POWELL, Bradford, PA

Built 2009 Load: 38.1 t ADT: 259

VALLEY FORGE ROAD

Good

Over: PA TURNPIKE (I-76)

ENT. VAL. FORGE PARK 16E1, Chester, PA

Built 2009 Load: 38.1 t ADT: 5,025

SR 2012

Good

Over: MUDDY CREEK

2 MI SE SPRING MILLS, Centre, PA

Built 2009 Load: 38.1 t ADT: 315

Manda Bott Rd

Good

Over: Manda Ck

1 MI. N. OF SHELLSVILLE, Dauphin, PA

Built 2009 Load: 38.1 t ADT: 689

T-970 CLIMAX ROAD

Good

Over: REDBANK CREEK

CO #5 - CLIMAX, Armstrong, PA

Built 2010 Load: 38.1 t ADT: 80

Showing 15,401-15,450 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.