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

SUNNYSIDE RD

Good

Over: TRIB TO BRUBAKER RUN

INTERSECTION AT VALLEY RD, Lancaster, PA

Built 2006 Load: 37.2 t ADT: 100

Hausman Rd (T-398)

Good

Over: Ridge Valley Creek

1 Mi N PA-563 2918-B7, Montgomery, PA

Built 2022 Load: 37.2 t ADT: 75

Street Road

Good

Over: Pidcock Creek

Upper Makefield 3037-E1, Bucks, PA

Built 1990 Load: 37.2 t ADT: 300

Schultz Lane

Good

Over: Buck Creek

Lower Makefield 3151-B2, Bucks, PA

Built 1985 Load: 37.2 t ADT: 35

RAMP 28 NB TO 8 NB

Good

Over: RAMP BRIDGE ST. CSX R/R

ETNA-28 N.B. RAMP TO RT 8, Allegheny, PA

Built 1963 Load: 37.3 t ADT: 8,319

RAMP A

Good

Over: RAMP C D-RP. NB TO CARSO

Homestead Interchange, Allegheny, PA

Built 1966 Load: 37.3 t ADT: 5,114

BROOKS STATE HOUSE

Good

Over: BROOKS RUN

1 MI SW OF SR 872, Cameron, PA

Built 2010 Load: 37.3 t ADT: 10

SPRINGTON ROAD

Good

Over: INDIAN RUN

NEAR SPRINGTON 19G1, Chester, PA

Built 1938 Load: 37.3 t ADT: 422

SR 879-PA 879

Good

Over: TROUT RUN

SHAWVILLE, Clearfield, PA

Built 1956 Load: 37.3 t ADT: 1,596

ROBBINS ROAD

Good

Over: OVER LITTLE FISHING CR

VILLAGE OF MORDANSVILLE, Columbia, PA

Built 1963 Load: 37.3 t ADT: 830

SR 555-PA 555

Good

Over: DENTS RUN

DENTS RUN, Elk, PA

Built 1940 Load: 37.3 t ADT: 453

SR 2035

Good

Over: SOLDIER RUN

REYNOLDSVILLE NO.3, Jefferson, PA

Built 1960 Load: 37.3 t ADT: 1,100

SR 60 BROADWAY AVE

Good

Over: BOBBY RUN

CITY OF HERMITAGE, Mercer, PA

Built 1950 Load: 37.3 t ADT: 7,590

REMINGTON ROAD

Good

Over: W. BRANCH INDIAN CREEK

.3 Mi SW US-30 3588-G2, Montgomery, PA

Built 1955 Load: 37.3 t ADT: 7,000

SR 642

Good

Over: OVER CHILLISQUAQUE CR.

0.5 MI E OF POTTSGROVE, Northumberland, PA

Built 1958 Load: 37.3 t ADT: 1,899

I-81 SB (LR 1005)

Good

Over: PA61 & RAMP B F G

FRACKVILLE INTERCHANGE, Schuylkill, PA

Built 1967 Load: 37.3 t ADT: 10,874

SR 0374 TR 374

Good

Over: N BR TUNKHANNOCK CREEK

LENOX TWP 198 E TR 92, Susquehanna, PA

Built 1957 Load: 37.3 t ADT: 1,589

SR 3001

Good

Over: ROARING RUN

WINDHAM TP 1.5M N SR 4004, Wyoming, PA

Built 1953 Load: 37.3 t ADT: 439

SR 430 STATION RD

Good

Over: OVER FRENCH CREEK W. BR.

GREENFIELD TOWNSHIP, Erie, PA

Built 2001 Load: 37.3 t ADT: 910

T-558

Good

Over: WALLACE RUN

1.2 MI. NE OF BURLINGTON, Bradford, PA

Built 2005 Load: 37.3 t ADT: 50

T-409 FOGEL CROSS

Good

Over: PORTAGE CREEK

1100 WEST OF SR 155, McKean, PA

Built 2007 Load: 37.3 t ADT: 100

DELLVILLE RD.

Good

Over: Shermans Creek

1.0 miles E.of DELLVILLE, Perry, PA

Built 2008 Load: 37.3 t ADT: 868

OTTER STREET

Good

Over: OTTER CREEK

.2 MI SOUTH US-13 3375A5, Bucks, PA

Built 2009 Load: 37.3 t ADT: 2,305

STRAIGHT CREEK RD

Good

Over: N FORK STRAIGHT CREEK

3 MI W OF STRAIGHT CREEK, Elk, PA

Built 2009 Load: 37.3 t ADT: 15

SR 2031

Good

Over: Hosensack Creek

1 mi SW Dillingersville, Lehigh, PA

Built 2010 Load: 37.3 t ADT: 2,534

U.S. 202 PARKWAY

Good

Over: TRIB. LITTLE NESHAMINY

1/2 MI. N. PA-63 3145B04, Montgomery, PA

Built 2010 Load: 37.3 t ADT: 17,515

SR 4017

Good

Over: LOSEY CREEK

1 MI NW OF KEENEYVILLE, Tioga, PA

Built 2011 Load: 37.3 t ADT: 479

Grand Army HY SR 6

Good

Over: SIX MILE RUN

MEAD TOWNSHIP, Warren, PA

Built 2011 Load: 37.3 t ADT: 4,544

SR4025

Good

Over: JORDAN CREEK

FRANTZS BR.(KISTLER RD.), Lehigh, PA

Built 2011 Load: 37.3 t ADT: 146

COURSIN STREET

Good

Over: CSX & UNION RR

FO03 MCKEESPORT FLYOVER, Allegheny, PA

Built 2011 Load: 37.3 t ADT: 500

SR 4013

Good

Over: RACCOON CREEK

2 MI N OF VALLEY GLEN, Lebanon, PA

Built 2012 Load: 37.3 t ADT: 379

SR 1018

Good

Over: LITTLE EQUINUNK CRK

MANCHESTR TP 5.5M E TR191, Wayne, PA

Built 2012 Load: 37.3 t ADT: 142

SR 2017

Good

Over: MILL CREEK

0.25 MI N OF ROARING BRAN, Tioga, PA

Built 2012 Load: 37.3 t ADT: 216

SR 187

Good

Over: TROUT STREAM

2.5 MI S. OF NORTH ORWELL, Bradford, PA

Built 2012 Load: 37.3 t ADT: 1,168

HULTON RD

Good

Over: PLUM CREEK

HULTON RD, Allegheny, PA

Built 2012 Load: 37.3 t ADT: 7,447

SR 2039

Good

Over: MILL CREEK

2.0 MI.N.E. OF WILLOW ST., Lancaster, PA

Built 2012 Load: 37.3 t ADT: 4,409

SR 1020

Good

Over: SHERMAN VALLEY RUN

2.9 MILE EAST OF SR 1009, Bedford, PA

Built 2012 Load: 37.3 t ADT: 82

SR 2018

Good

Over: TUBS RUN

BEECHDALE, Somerset, PA

Built 2012 Load: 37.3 t ADT: 235

SR 2002

Good

Over: MUDDY RUN

SMOKE RUN, Clearfield, PA

Built 2012 Load: 37.3 t ADT: 547

SR 1047

Good

Over: Branch of Chartiers Ck.

1.5 mi N from SR 0019, Washington, PA

Built 2013 Load: 37.3 t ADT: 6,065

PA 187

Good

Over: WAPPASENING CREEK

WINDHAM TWP 2.1M N LR 699, Bradford, PA

Built 2013 Load: 37.3 t ADT: 1,635

SR 0056

Good

Over: BRUSH CREEK

1.2 MI S SR 259 INTER., Indiana, PA

Built 2013 Load: 37.3 t ADT: 4,620

SR 1017

Good

Over: ROLLING GREEN RUN

1.5 MI SW OF SHAMOKIN DAM, Snyder, PA

Built 2013 Load: 37.3 t ADT: 1,747

SR 0119

Good

Over: SUGARCAMP RUN

200FT W SR 2014 INTER., Jefferson, PA

Built 2013 Load: 37.3 t ADT: 5,131

SR 2037

Good

Over: BIGBY CREEK

1.5 MI SW OF GARRETT, Somerset, PA

Built 2013 Load: 37.3 t ADT: 557

SR 1022

Good

Over: TRIBUTARY GREEN CREEK

0.1 MI E OF ROHRSBURG, Columbia, PA

Built 2013 Load: 37.3 t ADT: 554

LINCOLN HIGHWAY

Good

Over: SR 2112 ELECTRIC AVE

.5 MI.W.WESTINGHOUSE BR., Allegheny, PA

Built 2013 Load: 37.3 t ADT: 8,403

PA 281

Good

Over: US 30

STOYSTOWN, Somerset, PA

Built 2013 Load: 37.3 t ADT: 1,944

KING STREET

Good

Over: KELSEY CREEK

WELLSBORO BOROUGH, Tioga, PA

Built 2013 Load: 37.3 t ADT: 89

SR 4021

Good

Over: STONYCREEK RIVER

HOOVERSVILLE BORO, Somerset, PA

Built 2013 Load: 37.3 t ADT: 518

Showing 15,001-15,050 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.