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 1049

Good

Over: PENDLETON CREEK

1.25 MI SE OF WEST WARREN, Bradford, PA

Built 2010 Load: 60.8 t ADT: 739

SR 0201

Good

Over: Pollock Run

1.6 mi N of SR 0051, Westmoreland, PA

Built 2010 Load: 60.8 t ADT: 3,598

Pleasant Grove Rd

Good

Over: Little Chickies

1.5 Mi N of Mt Joy, Lancaster, PA

Built 2010 Load: 60.8 t ADT: 141

PA 194; SR 0194

Good

Over: RED RUN

3.0 MI.N. OF EAST BERLIN, York, PA

Built 2012 Load: 60.8 t ADT: 3,879

MT. JACKSON RD.

Good

Over: HICKORY RUN

1/2 MI. WEST OF SR 0317, Lawrence, PA

Built 1923 Load: 61.6 t ADT: 1,430

US 202 PARKWAY

Good

Over: CEMETERY ACCESS RD(FUT.)

0.5 MI W PA-152 3033H09, Bucks, PA

Built 2012 Load: 61.6 t ADT: 17,881

U.S. 202 PARKWAY

Good

Over: UNNAMED BR. NESH & WETLA

1 MI. E. PA152 3034A07, Bucks, PA

Built 2012 Load: 61.6 t ADT: 15,511

SR 1023

Good

Over: Furnace Run

LIGONIER TOWNSHIP, Westmoreland, PA

Built 2019 Load: 61.6 t ADT: 699

SR 3008

Good

Over: TR.LITTLE WILLS CREEK

1.5 MI.W. OF BARD, Bedford, PA

Built 1937 Load: 61.7 t ADT: 121

T527 DECKER HOLLOW

Good

Over: DECKER RUN

0.1 MILE NORTH OF TYRONE, Blair, PA

Built 1937 Load: 61.7 t ADT: 129

SR 1049

Good

Over: WAPPASENING CREEK

1 MI.E.OF WINDHAM CENTER, Bradford, PA

Built 1984 Load: 61.7 t ADT: 739

SR 2005 SHAWS LAND

Good

Over: OVER FRENCH CREEK

EAST FAIRFIELD TOWNSHIP, Crawford, PA

Built 1968 Load: 61.7 t ADT: 854

PA 325; SR 0325

Good

Over: CLARKS CREEK

3.5 MI. N.E. DAUPHIN, Dauphin, PA

Built 1993 Load: 61.7 t ADT: 783

SR 1005

Good

Over: S.BR.L.AUGHWICK CREEK

5.5 MI.NE.MCCONNELLSBURG, Fulton, PA

Built 1935 Load: 61.7 t ADT: 135

T342 STEEL HILL RD

Good

Over: MEADOW RUN

AT BUNNER HILL RD, Greene, PA

Built 1942 Load: 61.7 t ADT: 350

SR 0106 TR 106

Good

Over: BRANCH OF TUNKHANNOCK CK

GRNFIELD TWP 1.8M W TR247, Lackawanna, PA

Built 1959 Load: 61.7 t ADT: 1,543

S.R. 0180 EBL

Good

Over: LR 289 SPURC(BASIN ST)

OVER BASIN STREET, Lycoming, PA

Built 1978 Load: 61.7 t ADT: 12,246

PA 309 BY-PASS

Good

Over: PAPER MILL ROAD

ENFIELD 3369J04, Montgomery, PA

Built 1960 Load: 61.7 t ADT: 61,488

PA TPK (I-76)

Good

Over: I-76 RAMPS AB

VALLEY FORGE INTERCHANGE, Montgomery, PA

Built 2008 Load: 61.7 t ADT: 65,138

US 11&15; SR 0011

Good

Over: VALLEY ST

MARYSVILLE BORO, Perry, PA

Built 1936 Load: 61.7 t ADT: 18,406

SR 2007

Good

Over: OVER BUFFALO CREEK

0.2 MI NW OF LEWISBURG, Union, PA

Built 1962 Load: 61.7 t ADT: 5,993

SR 0056

Good

Over: LITTLE PUCKETA CREEK

CITY OF NEW KENSINGTON, Westmoreland, PA

Built 1956 Load: 61.7 t ADT: 10,377

SR 3006

Good

Over: SPRING CREEK

BELLEFONTE, Centre, PA

Built 1999 Load: 61.7 t ADT: 1,890

SAW MILL RUN BLVD

Good

Over: W LIBERTY AVE. SR 3069

0.1 MILE S.LIBERTY TUNNEL, Allegheny, PA

Built 1999 Load: 61.7 t ADT: 34,337

SR 4003

Good

Over: LITTLE CHIQUES CREEK

S.W. CORNER OF MT.JOY, Lancaster, PA

Built 2003 Load: 61.7 t ADT: 1,294

SR 718 STATE ST

Good

Over: SHENANGO RIVER

CITY SHARON, Mercer, PA

Built 2007 Load: 61.7 t ADT: 4,628

WALNUT STREET

Good

Over: BR PLEASANT SPRINGS CR

400S.PERKASIE BO. 20J03, Bucks, PA

Built 2008 Load: 61.7 t ADT: 6,320

SR1038

Good

Over: BUFF & PITT RR

WEST KITTANNING HILL, Armstrong, PA

Built 2008 Load: 61.7 t ADT: 12,221

GREEN VALLEY ROAD

Good

Over: GREEN VALLEY CREEK

1.5 MI. SE OF MORTONVILLE, Chester, PA

Built 2008 Load: 61.7 t ADT: 192

Twin Bridge Ln Ent

Good

Over: E. Br. White Clay Creek

At Clay Creek Rd 3910-E3, Chester, PA

Built 1998 Load: 61.7 t ADT: 250

T-331 SUNNYSIDE RD

Good

Over: BRUBAKER RUN

800 FT EAST OF SR 4033, Lancaster, PA

Built 2010 Load: 61.7 t ADT: 830

RAMP D (SR 8021)

Good

Over: OPEN GROUND

EDGMONT AVE. RAMP 3807C3, Delaware, PA

Built 2004 Load: 61.7 t ADT: 5,658

PA TPK (I-476)

Good

Over: T-403 (Wambold Rd)

N. of Landsdale int., Montgomery, PA

Built 2014 Load: 61.7 t ADT: 65,329

CLIFFORD WOODS RD

Good

Over: BR. MILL CREEK

WATERFORD-OAK GROVE AREA, Westmoreland, PA

Built 2019 Load: 61.7 t ADT: 125

PA 764/BUS US 220

Good

Over: SMALL RUN

2 MI.N.OF GREENWOOD, Blair, PA

Built 1993 Load: 62.6 t ADT: 9,538

SR 4027

Good

Over: OVER BUCKS CREEK

1MI S. OF CHECKERVILLE, Bradford, PA

Built 1973 Load: 62.6 t ADT: 164

T518 CARL ROAD

Good

Over: SLATE LICK RUN

VILLAGE OF FALLEN TIMBER, Cambria, PA

Built 1997 Load: 62.6 t ADT: 126

EXTON BYPASS(EB)

Good

Over: WHITFORD ROAD

WHITFORD RD/SR6030 21F13, Chester, PA

Built 1995 Load: 62.6 t ADT: 26,791

T-568 CAPP ROAD

Good

Over: OVER COULTER RUN

.5 MI.S.SR.1006 ON T-568, Crawford, PA

Built 1905 Load: 62.6 t ADT: 250

ON TSR 438

Good

Over: KINGS RUN

1 MI SW CERES, McKean, PA

Built 1939 Load: 62.6 t ADT: 309

SUNOL ROAD

Good

Over: OVER NORTH DEER CREEK TR

SUNOL RD FRENCH CK. TWP., Mercer, PA

Built 1994 Load: 62.6 t ADT: 151

STENTON AVENUE

Good

Over: NORFOLK SOUTHERN

SE JOSHUA ROAD 30E10, Montgomery, PA

Built 1995 Load: 62.6 t ADT: 7,909

PA TPK (I-276)

Good

Over: US-309

WEST OF FT WASHINGTONINTG, Montgomery, PA

Built 2000 Load: 62.6 t ADT: 74,921

CHURCH ROAD

Good

Over: HOKENDAUQUA CREEK

1 M. EAST OF SR 4003, Northampton, PA

Built 1970 Load: 62.6 t ADT: 200

SR 2029

Good

Over: LITTLE CREEK

CLIFFORD TP .1M E SR 2027, Susquehanna, PA

Built 1953 Load: 62.6 t ADT: 151

SR 0014

Good

Over: OVER WEST MILL CREEK

VILLAGE OF ROARING BRANCH, Tioga, PA

Built 1930 Load: 62.6 t ADT: 2,564

SR 549

Good

Over: MILL CREEK

3.5 MI. S. OF ROSEVILLE, Tioga, PA

Built 1985 Load: 62.6 t ADT: 1,885

SR 2014

Good

Over: OVER FELLOWS CREEK

3.0 MI E OF FALLBROOK, Tioga, PA

Built 1937 Load: 62.6 t ADT: 170

SR 44-PA 44

Good

Over: OSWAYO CREEK

CERES PA & NY STATE LINE, McKean, PA

Built 1997 Load: 62.6 t ADT: 2,217

SR 0081 I-81 SB

Good

Over: ASH STREET

I-81 SB OVER ASH STREET, Lackawanna, PA

Built 1996 Load: 62.6 t ADT: 34,172

Showing 19,851-19,900 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.