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 322-US 322

Fair

Over: MOOSE CREEK

CLEARFIELD, Clearfield, PA

Built 1966 Load: 31.8 t ADT: 5,499

SR 42

Fair

Over: OVER FISHING CREEK

1 MI E OF BLOOMSBURG, Columbia, PA

Built 1970 Load: 31.8 t ADT: 12,914

PA 254

Fair

Over: LITTLE FISHING CREEK

MILLVILLE BOROUGH, Columbia, PA

Built 1930 Load: 31.8 t ADT: 2,852

SR 339

Fair

Over: TRIB TO CATAWISSA CREEK

MAINVILLE, Columbia, PA

Built 1915 Load: 31.8 t ADT: 2,109

SR 77 STATE STREET

Fair

Over: OVER DELMATER RUN

RICHMOND TOWNSHIP, Crawford, PA

Built 1917 Load: 31.8 t ADT: 2,040

SR 79 NB

Fair

Over: OVER T-528 MERCER PIKE

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 31.8 t ADT: 6,476

I-79 SB

Fair

Over: OVER T-528 MERCER PIKE

GREENWOOD TOWNSHIP, Crawford, PA

Built 1969 Load: 31.8 t ADT: 6,474

SR 79 SB

Fair

Over: OVER SR 0102

VERNON TOWNSHIP, Crawford, PA

Built 1969 Load: 31.8 t ADT: 7,557

SR 98 RESERVOIR RD

Fair

Over: CARR RUN TRIB

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1933 Load: 31.8 t ADT: 1,803

T-880 (FIRTH ROAD)

Fair

Over: OVER BRITTON RUN

3 MI. NE. CENTERVILLE, Crawford, PA

Built 1920 Load: 31.8 t ADT: 250

PA 233; SR 0233

Fair

Over: YELLOW BREECHES CREEK

SOUTH FAIRVIEW, Cumberland, PA

Built 1971 Load: 31.8 t ADT: 1,961

PA 696; SHIPP. RD.

Fair

Over: CONODOGUINET CREEK

HOPEWELL TOWNSHIP, Cumberland, PA

Built 1933 Load: 31.8 t ADT: 2,789

SR 4006 BRANDY RUN

Fair

Over: CONODOGUINET CREEK

2.5 MI.W. NEWVILLE, Cumberland, PA

Built 1980 Load: 31.8 t ADT: 1,192

CREEKVIEW RD T-399

Fair

Over: DOUBLING GAP CREEK

0.5 MI W OF SR 233, Cumberland, PA

Built 1940 Load: 31.8 t ADT: 200

STROHMS HOLLOW RD

Fair

Over: STROHMS HOLLOW RUN

3/4 MI SE WALNUT DALE RD, Cumberland, PA

Built 1935 Load: 31.8 t ADT: 1

I-283 NB; SR 0283

Fair

Over: SR 0322 WB; RAMP K

EISENHOWER, Dauphin, PA

Built 1970 Load: 31.8 t ADT: 26,820

SWATARA CREEK RD

Fair

Over: IRON RUN

IRON RUN/SW I/S 283, Dauphin, PA

Built 1980 Load: 31.8 t ADT: 450

MACHAMER AVE. T597

Fair

Over: WICONISCO CREEK

E LYKENS/WICONISCO CRK, Dauphin, PA

Built 1974 Load: 31.8 t ADT: 150

SR 8027; RAMP K

Fair

Over: SR 8027; RAMP A

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 Load: 31.8 t ADT: 4,123

SR 8037 NB

Fair

Over: US11&15

2 MILES N.OF CLARKS FERRY, Dauphin, PA

Built 1959 Load: 31.8 t ADT: 219

WEST CHESTER PIKE

Fair

Over: NAYLORS RUN

1MI.EAST LR 719 26F09, Delaware, PA

Built 1959 Load: 31.8 t ADT: 29,303

CONCHESTER HIGHWAY

Fair

Over: MARKET STREET / 3806-B5

UPPER CHICHESTER 42H05, Delaware, PA

Built 1949 Load: 31.8 t ADT: 29,211

KARAKUNG DRIVE

Fair

Over: COBBS CREEK / 3588-D2

.5MI.S.LR 23049 26G05, Delaware, PA

Built 1989 Load: 31.8 t ADT: 1,568

CEDAR GROVE ROAD

Fair

Over: TROUT RUN

.7MI.WEST PA-320 25F09, Delaware, PA

Built 1928 Load: 31.8 t ADT: 3,358

TOWNSHIP LINE ROAD

Fair

Over: MARCUS HOOK CREEK

SOUTH I-95 42J08, Delaware, PA

Built 1962 Load: 31.8 t ADT: 4,075

CHESTNUT PARKWAY

Fair

Over: RIDLEY CREEK

NETH.PROVIDENCE 34F13, Delaware, PA

Built 1929 Load: 31.8 t ADT: 7,382

SR 153-PA 153

Fair

Over: BEAR RUN

1 MI SW CHALLENGE, Elk, PA

Built 1961 Load: 31.8 t ADT: 2,467

SR 948-PA 948

Fair

Over: LITTLE MILL CREEK

MONTMORENCI, Elk, PA

Built 1937 Load: 31.8 t ADT: 1,172

SR 1003

Fair

Over: ELK CREEK

1 MI N ST MARYS, Elk, PA

Built 1958 Load: 31.8 t ADT: 4,746

SR 8 WATTSBURG RD

Fair

Over: OVER MILLCREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 1929 Load: 31.8 t ADT: 8,412

T-780 BORT ROAD

Fair

Over: OVER SR 90 EB/WB

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 31.8 t ADT: 130

SR 2020 WSHNGTN.ST

Fair

Over: OVER FRENCH CREEK S BR

CONCORD TOWNSHIP, Erie, PA

Built 1962 Load: 31.8 t ADT: 1,229

T-717 COOPER ROAD

Fair

Over: FOUR MILE CREEK

600 FT EAST OF SR 4030, Erie, PA

Built 1981 Load: 31.8 t ADT: 3,125

T-379 COLLEGE AVE

Fair

Over: MIDDLE RUN

AT SR 166 INTERSECTION, Fayette, PA

Built 1930 Load: 31.8 t ADT: 50

SR 62 TIONESTA BR.

Fair

Over: OVER ALLGHNY.R RIVER ST

TIONESTA BOROUGH, Forest, PA

Built 1961 Load: 31.8 t ADT: 2,455

I-81 NB; SR 0081

Fair

Over: CSX; WESTERN MD. R.R.

0.25 ML.S. WAYNE AVE., Franklin, PA

Built 1963 Load: 31.8 t ADT: 20,462

I-81 SB; SR 0081

Fair

Over: CSX; WESTERN MD. R.R.

SE CHAMBERSBURG, Franklin, PA

Built 1963 Load: 31.8 t ADT: 20,054

SR 4018;Paxton Run

Fair

Over: TR CONODOGUINET CREEK

1 MI S.E. OF MOWERSVILLE, Franklin, PA

Built 1937 Load: 31.8 t ADT: 393

T-572 MILL ROAD

Fair

Over: CONOCOCHEAGUE CRK. W.BR.

0.27 MI. NW OF SR 4006, Franklin, PA

Built 1964 Load: 31.8 t ADT: 50

PA 655

Fair

Over: BARNETTS RUN

0.1 MI.S.OF NEEDMORE, Fulton, PA

Built 1936 Load: 31.8 t ADT: 492

SR 3001

Fair

Over: BISSETT RUN

SPRINGHILL TOWNSHIP, Greene, PA

Built 1961 Load: 31.8 t ADT: 113

SR 3001

Fair

Over: PENNA. FORK FISH CREEK

SPRINGHILL TOWNSHIP, Greene, PA

Built 1941 Load: 31.8 t ADT: 113

SR 3012

Fair

Over: BR. S. FORK WHEELING CK.

ALEPPO TOWNSHIP, Greene, PA

Built 1938 Load: 31.8 t ADT: 196

SR 4012

Fair

Over: BROWNS CREEK

MORRIS TOWNSHIP, Greene, PA

Built 1938 Load: 31.8 t ADT: 211

SR 4029

Fair

Over: OVER FONNER RUN

MORRIS TOWNSHIP, Greene, PA

Built 1932 Load: 31.8 t ADT: 174

MAPLE RUN ROAD 474

Fair

Over: PURSLEY CREEK

NEAR OAK FOREST VILLAGE, Greene, PA

Built 1970 Load: 31.8 t ADT: 25

T-658 CREES RD

Fair

Over: MUDDY RUN

CUMBERLAND TOWNSHIP, Greene, PA

Built 1919 Load: 31.8 t ADT: 50

T-674 N MARKET ST

Fair

Over: MUDDY CREEK

NORTH OF CARMICHAELS, Greene, PA

Built 1994 Load: 31.8 t ADT: 100

SR 2004

Fair

Over: AUGHWICK CREEK

0.25 MI. W. OF MEADOW GAP, Huntingdon, PA

Built 1962 Load: 31.8 t ADT: 179

T618 RIVER ROAD

Fair

Over: FRANKSTOWN BR JUNIATA R.

1 MILE EAST OF ALEXANDRIA, Huntingdon, PA

Built 1962 Load: 31.8 t ADT: 806

Showing 3,651-3,700 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.