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

T-361 (CTY BR 17)

Fair

Over: ROARING CREEK

0.75 MI SE OF SLABTOWN, Columbia, PA

Built 1876 Load: 2.7 t ADT: 50

SAM ECKMAN No 92

Fair

Over: LITTLE FISHING CREEK

4.5 MI NE OF MILLVILLE, Columbia, PA

Built 1876 Load: 2.7 t ADT: 50

WEAVERLAND RD

Fair

Over: CONESTOGA RIVER

1/2 MILE SW OF SR 1044, Lancaster, PA

Built 1878 Load: 2.7 t ADT: 165

ACADEMY RD

Fair

Over: W BR OCTORARO CRK

1 MI EAST OF SR 2009, Lancaster, PA

Built 1847 Load: 2.7 t ADT: 340

FOX HOLLOW RD

Fair

Over: PEQUEA CREEK

1000 FT SOUTH OF SR 324, Lancaster, PA

Built 1878 Load: 2.7 t ADT: 340

ERISMAN RD

Fair

Over: CHIQUES CREEK

2 MI SE OF SR 772, Lancaster, PA

Built 1855 Load: 2.7 t ADT: 275

SUN HILL RD

Fair

Over: CHIQUES CREEK

700 FT SE OF SR 772, Lancaster, PA

Built 1900 Load: 2.7 t ADT: 820

BRIDGE RD

Fair

Over: CONESTOGA RIVER

1200 FT EAST OF SR 1029, Lancaster, PA

Built 1867 Load: 2.7 t ADT: 425

BRENEMAN RD

Fair

Over: PEQUEA CREEK

1 MILE NORTH OF SR 222, Lancaster, PA

Built 1871 Load: 2.7 t ADT: 410

KIWANIS RD

Fair

Over: MILL CREEK

1500 FT WEST OF SR 2039, Lancaster, PA

Built 1876 Load: 2.7 t ADT: 50

MAHONING AVE

Fair

Over: SHENANGO R NCI RR

MAHONING AVE. VIADUCT, Lawrence, PA

Built 1923 Load: 2.7 t ADT: 4,317

CHURCH STREET

Fair

Over: CATASAUQUA CREEK

W. OF ST. JOHN ST., Lehigh, PA

Built 1964 Load: 2.7 t ADT: 1,000

SHEDY HILL ROAD

Fair

Over: KITCHEN CREEK

SE OF MOSSVILLE, Luzerne, PA

Built 1910 Load: 2.7 t ADT: 55

SR 2008 (LR 949)

Fair

Over: US 209

Bossardsville Road, Monroe, PA

Built 1963 Load: 2.7 t ADT: 996

US22/322EB; SR0022

Fair

Over: COCOLAMUS CREEK

0.5MI SE OF MILLERSTOWN, Perry, PA

Built 1966 Load: 2.7 t ADT: 8,985

T-310 (CTY BR 2)

Fair

Over: MUNCY CREEK

0.5 MI. S. OF SONESTOWN, Sullivan, PA

Built 1900 Load: 2.7 t ADT: 50

T-357 CTY BR # 4

Fair

Over: LOYALSOCK CREEK

2.6 M. NE OF HILLSGROVE, Sullivan, PA

Built 1900 Load: 2.7 t ADT: 54

CHARTIERS AV

Fair

Over: CHARTIERS CREEK

PGH-MCKEES ROCKS LINE, Allegheny, PA

Built 1966 Load: 3.6 t ADT: 10,249

MCKEESPORT-DUQ BRG

Fair

Over: 736 EXT 3 RRS MON.RIV.

Duquesne-McKeesport Brg, Allegheny, PA

Built 1927 Load: 3.6 t ADT: 24,343

COVERED BRIDGE RD

Fair

Over: CABIN RUN

PLUMSTEAD TOWNSHIP 17D03, Bucks, PA

Built 1871 Load: 3.6 t ADT: 100

SR0356 NB&SB

Fair

Over: SR0028 NB&SB

NOLF CORNERS, Butler, PA

Built 1968 Load: 3.6 t ADT: 11,219

T-685 CEMETERY RD

Fair

Over: PINEY CREEK

0.1 mi S int w/ SR 2016, Clarion, PA

Built 1910 Load: 3.6 t ADT: 50

WANICH- CO BR #69

Fair

Over: LITTLE FISHING CREEK

1.7 MI. NE OF BUCKHORN, Columbia, PA

Built 1910 Load: 3.6 t ADT: 100

PATTERSON No 112

Fair

Over: GREEN CREEK

2.2 MI N OF ORANGEVILLE, Columbia, PA

Built 1910 Load: 3.6 t ADT: 120

JUD CHRISTIAN(BR95

Fair

Over: LITTLE FISHING CREEK

0.9 MI. W. OF JACKSON, Columbia, PA

Built 1876 Load: 3.6 t ADT: 50

T-374 RAMP BRIDGE

Fair

Over: CONODOGUINET CREEK

2E NEWBURG/HOPEWELL TWP., Cumberland, PA

Built 1870 Load: 3.6 t ADT: 248

ANDERSON RD

Fair

Over: LICKING CREEK

0.7 MI NORTH OF SR 416, Franklin, PA

Built 1883 Load: 3.6 t ADT: 100

T-318 CTY BR #4

Fair

Over: BEAVER RUN

1.7 M. WEST OF MOORESBURG, Montour, PA

Built 1924 Load: 3.6 t ADT: 24

T-347 (CO. BR. #7)

Fair

Over: CHILLISQUAQUE CREEK

1.5 MI SW WASHINGTONVILLE, Montour, PA

Built 1853 Load: 3.6 t ADT: 25

RISHEL COV. BRDG.

Fair

Over: CHILLISQUAQUE CREEK

T-573 (Snyder Road), Northumberland, PA

Built 1830 Load: 3.6 t ADT: 100

KRICKBAUN

Fair

Over: S. BR. of ROARING CREEK

E OF ELYSBURG, Northumberland, PA

Built 1876 Load: 3.6 t ADT: 250

KEEFER STATION

Fair

Over: SHAMOKIN CREEK

E OF SUNBURY, Northumberland, PA

Built 1888 Load: 3.6 t ADT: 50

HIMMELS

Fair

Over: SCHWABEN CREEK

0.6 MI ENE OF REBUCK, Northumberland, PA

Built 1874 Load: 3.6 t ADT: 25

SALISBURY STREET

Fair

Over: FLAUGHERTY CREEK

MEYERSDALE BOROUGH, Somerset, PA

Built 1974 Load: 3.6 t ADT: 200

T-646 Willows Rd

Fair

Over: OVER BROKENSTRAW CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1992 Load: 3.6 t ADT: 100

FR 154

Fair

Over: FARNSWORTH RUN

3.0 MILES S OF SR 2006, Warren, PA

Built 1934 Load: 3.6 t ADT: 50

RAYMOND SHAFER HW

Fair

Over: SR 0050

I-79 SB OVER SR 50, Allegheny, PA

Built 1965 Load: 4.5 t ADT: 32,056

RAYMOND SHAFER HW

Fair

Over: CLEVER RD

I 79 NB OVER CLEVER RD, Allegheny, PA

Built 1971 Load: 4.5 t ADT: 22,672

T413 Grasser Road

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

1 MI.E.OF NEW BALTIMORE, Bedford, PA

Built 1983 Load: 4.5 t ADT: 26

SPANGSVILLE ROAD

Fair

Over: MANATAWNY CREEK

NEAR SPANGSVILLE, Berks, PA

Built 1868 Load: 4.5 t ADT: 255

T-781 (CO.BR.#27)

Fair

Over: SOUTH CREEK

1.5 MI NE OF GILLETT, Bradford, PA

Built 1898 Load: 4.5 t ADT: 50

SR0368

Fair

Over: ALLEGHENY RIV/ABAND RR

PARKER, Clarion, PA

Built 1934 Load: 4.5 t ADT: 1,742

T-383 COULTER RD

Fair

Over: BEAVER CREEK

0.6 mi SW int w/ SR4005, Clarion, PA

Built 1960 Load: 4.5 t ADT: 50

TOWNSHIP ROAD 597

Fair

Over: TEN MILE CREEK

MORGAN & JEFFERSON TWP., Greene, PA

Built 1918 Load: 4.5 t ADT: 15

T-974 BECKETT ROAD

Fair

Over: SOUTH BRANCH OF BEAR RUN

CO#13 BTW T700 & T701, Indiana, PA

Built 1920 Load: 4.5 t ADT: 50

T-373 FRANTZ RD

Fair

Over: ROSS RUN

CO#20 AT END OF T373, Indiana, PA

Built 1918 Load: 4.5 t ADT: 50

LAPP RD.

Fair

Over: JORDAN CREEK

MANASSES-GUTH BRIDGE, Lehigh, PA

Built 1858 Load: 4.5 t ADT: 100

SR 1013 Cly Rd.

Fair

Over: CONEWAGO CREEK

2 MILE WEST OF YORK HAVEN, York, PA

Built 1974 Load: 4.5 t ADT: 444

71st Street

Fair

Over: AMTRAK (NE Corridor)

S of Paschall Avenu 36E05, Philadelphia, PA

Built 1901 Load: 4.5 t ADT: 40,000

T-418 FAUPEL ROAD

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

3 MI.S.OF SCHELLSBURG, Bedford, PA

Built 1892 Load: 5.4 t ADT: 20

Showing 51-100 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.