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-319 DEWEY AVE

Fair

Over: MARVIN CREEK

800 FT NW OF US 6, McKean, PA

Built 1975 Load: 17.2 t ADT: 50

SR 2024 KILGORE RD

Fair

Over: OVER WOLF CREEK BRANCH

WORTH TOWNSHIP, Mercer, PA

Built 1960 Load: 17.2 t ADT: 133

FAWN RD T-507

Fair

Over: SAMBO CREEK

0.8 MI.E.OF ANALOMINK RD., Monroe, PA

Built 1958 Load: 17.2 t ADT: 581

ROCKEFELLER T-538

Fair

Over: LITTLE SHAMOKIN CREEK

2 MI WEST OF SEVEN POINTS, Northumberland, PA

Built 1985 Load: 17.2 t ADT: 200

UNION ST

Fair

Over: MIDDLE CREEK

TREMONT BORO ON UNION ST., Schuylkill, PA

Built 1950 Load: 17.2 t ADT: 500

LAKE LOOP ROAD

Fair

Over: KOOSER RUN

500 FT SE OF SR 31, Somerset, PA

Built 1933 Load: 17.2 t ADT: 140

SR 4017

Fair

Over: RACCOON CREEK

SMITH TOWNSHIP, Washington, PA

Built 1948 Load: 17.2 t ADT: 588

SCHOOL STREET

Fair

Over: ROBBS RUN

BEHIND VFD BUILDING, Washington, PA

Built 1922 Load: 17.2 t ADT: 500

SR 3016

Fair

Over: S BR CODORUS CREEK

1 MI.S. SEITZVILLE, York, PA

Built 1960 Load: 17.2 t ADT: 299

CROSS MILL ROAD

Fair

Over: TRIB. TO RAMBO RUN

1.8SE X-ROADS/TR.RAMBO RN, York, PA

Built 1954 Load: 17.2 t ADT: 57

VALLEY GREEN ROAD

Fair

Over: FISHING CREEK

1.2 W.GOLDSBORO/FISHING C, York, PA

Built 1970 Load: 17.2 t ADT: 750

CASCADE BLVD

Fair

Over: BIG RUN

1200 W OF SR 65 PARK ENT, Lawrence, PA

Built 2009 Load: 17.2 t ADT: 25

EAST PATROL ROAD

Fair

Over: MUDDY RUN

SE OF GATE 6D, Franklin, PA

Built 1942 Load: 18.0 t ADT: 5

FALL RUN ROAD

Fair

Over: PINE CREEK

118006 200 E/0008 (PI07), Allegheny, PA

Built 1993 Load: 18.1 t ADT: 1,200

GREELEY AVENUE

Fair

Over: LITTLE PINE CREEK WEST

430001 GREELEY AVE BRIDGE, Allegheny, PA

Built 1985 Load: 18.1 t ADT: 250

PENN AV

Fair

Over: THOMPSON RUN

467002 OVER THOMPSON RN, Allegheny, PA

Built 1930 Load: 18.1 t ADT: 7,000

T473 ROSE ROAD

Fair

Over: SHAWNEE CREEK

2 MI.W.OF SCHELLSBURG, Bedford, PA

Built 1977 Load: 18.1 t ADT: 52

PA 12 (LR 784)

Fair

Over: SR 2011/11TH ST./LR06143

11TH STREET, Berks, PA

Built 1978 Load: 18.1 t ADT: 19,656

SR 4011(LR 06017)

Fair

Over: NORTHKILL CREEK

SHARTLESVILLE ROAD, Berks, PA

Built 1966 Load: 18.1 t ADT: 2,157

SR 4027

Fair

Over: BALD EAGLE CREEK

2 MI NE OF BALD EAGLE, Blair, PA

Built 1930 Load: 18.1 t ADT: 1,510

SR 4027/BUS US 220

Fair

Over: MCFARLANDS RUN

0.7 MILE SOUTH OF SR 4025, Blair, PA

Built 1971 Load: 18.1 t ADT: 6,464

T-617 (TWP. BR)

Fair

Over: WEST BR. TOMJACK CREEK

2.6 MI. EAST OF WETONA, Bradford, PA

Built 1985 Load: 18.1 t ADT: 50

CARVER-WISMER ROAD

Fair

Over: CABIN RUN (COVERED BRDG)

PIPERSVILLE 17B04, Bucks, PA

Built 1874 Load: 18.1 t ADT: 553

RINGING ROCKS ROAD

Fair

Over: HIGH FALLS CREEK

1.5 M W SR32 ADC 2584-K1, Bucks, PA

Built 1927 Load: 18.1 t ADT: 200

PA 53

Fair

Over: LITTLE CONEMAUGH RIVER

0.9 MILE NORTH OF TR 219, Cambria, PA

Built 1965 Load: 18.1 t ADT: 3,559

T506 Water Plant R

Fair

Over: TEA KETTLE RUN

2.5 MI.SW.OF NICKTOWN, Cambria, PA

Built 1987 Load: 18.1 t ADT: 109

T-387 HONAN AVENUE

Fair

Over: TR.OF HINCKSTON RUN

.25 M.S.HINCKSTON RUN DAM, Cambria, PA

Built 1910 Load: 18.1 t ADT: 103

D STREET

Fair

Over: ST.CLAIR RUN

D STREET JOHNSTOWN, Cambria, PA

Built 1980 Load: 18.1 t ADT: 656

MERLIN ROAD

Fair

Over: PICKERING CREEK

NR.VALLEY FORGE HP. 14E10, Chester, PA

Built 1961 Load: 18.1 t ADT: 1,066

HARES HILL ROAD

Fair

Over: FRENCH CREEK

I MI. S. RTE. 23 14G4, Chester, PA

Built 1867 Load: 18.1 t ADT: 3,326

SR3016

Fair

Over: PINEY CREEK

PINEY DAM ROAD, Clarion, PA

Built 1962 Load: 18.1 t ADT: 33

SR 53-PA 53

Fair

Over: LAUREL RUN

PHILIPSBURG, Clearfield, PA

Built 1958 Load: 18.1 t ADT: 7,026

T-733 PEALE RD

Fair

Over: MOSHANNON CREEK

1.7 MI SE OF COOPER AVE, Clearfield, PA

Built 1923 Load: 18.1 t ADT: 2

SR 120-PA 120

Fair

Over: BALD EAGLE STREET

CITY OF LOCK HAVEN, Clinton, PA

Built 1980 Load: 18.1 t ADT: 6,523

SR 1002

Fair

Over: W BR SUSQUEHANNA RIVER

1 MILE EAST LOCK HAVEN, Clinton, PA

Built 1966 Load: 18.1 t ADT: 776

T392 MADISON BR#1

Fair

Over: MUD CREEK

1.5 MI. SW OF JERSEYTOWN, Columbia, PA

Built 1920 Load: 18.1 t ADT: 50

T-574 MARSH ROAD

Fair

Over: OVER CONNEAUT OUTLET

.6 MI.N.OF SR-0285, Crawford, PA

Built 1890 Load: 18.1 t ADT: 250

T-330; HAMMOND RD

Fair

Over: I-81; SR 0081

2.9 MI.N.OF EXIT-29 I-81, Cumberland, PA

Built 1963 Load: 18.1 t ADT: 204

T-664; TOWER RD

Fair

Over: I-81 SB; SR 0081

1.7 MI.S. SR 0011, Cumberland, PA

Built 1973 Load: 18.1 t ADT: 1,059

PA 225; SR 0225

Fair

Over: WICONISCO CREEK

1 MI N E-VILLE, Dauphin, PA

Built 1984 Load: 18.1 t ADT: 2,827

SR 1005

Fair

Over: WICONISCO CREEK

WILLIAMSTOWN BORO, Dauphin, PA

Built 1985 Load: 18.1 t ADT: 800

SR 2005 WALTONVILL

Fair

Over: SR 0322; US 322

.5 MI. S. HUMMELSTOWN, Dauphin, PA

Built 1968 Load: 18.1 t ADT: 4,764

T-442 MILLFAIR RD

Fair

Over: WALNUT CREEK

2000 SE OF W 38TH ST, Erie, PA

Built 1961 Load: 18.1 t ADT: 3,998

I-81 NB; SR 0081

Fair

Over: PA 316; SR 0316

WAYNE AVE. CHAMBERSBURG, Franklin, PA

Built 1963 Load: 18.1 t ADT: 20,462

T-568 DRY RUN ROAD

Fair

Over: DRY RUN

200 FT. E OF SR 641, Franklin, PA

Built 1959 Load: 18.1 t ADT: 100

GOODS DAM RD

Fair

Over: E. BR. ANTIETAM CRK

2.2 S WBORO/E BR ANTIETAM, Franklin, PA

Built 1975 Load: 18.1 t ADT: 200

SR 3011

Fair

Over: TB CROOKED CREEK

.5 MI.N.OF HESSTON, Huntingdon, PA

Built 1958 Load: 18.1 t ADT: 1,423

SR 8025

Fair

Over: ROAR BR;RR;8025;SERV RD.

SCRANTON SPRUCE ST COMPLX, Lackawanna, PA

Built 1969 Load: 18.1 t ADT: 7,362

NORTH OAK STREET

Fair

Over: LITITZ RUN

300 NORTH OF S.R. 772, Lancaster, PA

Built 1968 Load: 18.1 t ADT: 1,055

PA 419; E.Main St.

Fair

Over: NORFOLK SOUTHERN RR

NEWMANSTOWN, Lebanon, PA

Built 1971 Load: 18.1 t ADT: 4,575

Showing 501-550 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.