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 4017(LR 06036)

Fair

Over: SCHUYLKILL RIVER

DAUBERVILLE BRIDGE, Berks, PA

Built 1991 Load: 44.5 t ADT: 2,934

SCHUBERT RD

Fair

Over: MILL CREEK

1.3 MI E OF PA 501, Berks, PA

Built 1960 Load: 44.5 t ADT: 330

POINT RD

Fair

Over: MANOR CREEK

NORTH OF SR 422, Berks, PA

Built 1968 Load: 44.5 t ADT: 122

PA 36

Fair

Over: MILL RUN

ALTOONA, Blair, PA

Built 1914 Load: 44.5 t ADT: 10,037

PA 453

Fair

Over: LITTLE JUNIATA RIVER

.75 MI.E.OF TYRONE, Blair, PA

Built 1986 Load: 44.5 t ADT: 7,156

T-614 Plum Crk Rd

Fair

Over: PLUM CREEK

SHARPSBURG, Blair, PA

Built 1915 Load: 44.5 t ADT: 376

SR 3013

Fair

Over: BLAIR GAP RUN

JUST WEST OF DUNCANSVILLE, Blair, PA

Built 1955 Load: 44.5 t ADT: 10,270

SR 4003

Fair

Over: MILL RUN

ALTOONA LOGAN BLVD., Blair, PA

Built 1962 Load: 44.5 t ADT: 9,532

OAK AVENUE

Fair

Over: BURGOON RUN

OAK AVE.@ 58TH ST ALTOONA, Blair, PA

Built 1993 Load: 44.5 t ADT: 3,153

US 6

Fair

Over: RAILROADS SR & SUSQRIVER

TOWANDA RIVER BRIDGE, Bradford, PA

Built 1986 Load: 44.5 t ADT: 15,819

SR 1049

Fair

Over: PENDLETON CREEK TRIB.

0.25 MI N OF SOUTH WARREN, Bradford, PA

Built 1941 Load: 44.5 t ADT: 339

SR 3002

Fair

Over: LADDS CREEK

NEW ALBANY BORO, Bradford, PA

Built 1941 Load: 44.5 t ADT: 727

SR 3036

Fair

Over: SOUTH FORK SUGAR CREEK

1 MI. S.OF TROY BORO, Bradford, PA

Built 1973 Load: 44.5 t ADT: 195

SR 4013

Fair

Over: BENTLEY CREEK

0.5 MI.N.OF BENTLEY CREEK, Bradford, PA

Built 1964 Load: 44.5 t ADT: 2,041

SR 4013

Fair

Over: THREEFALL RUN

VILLAGE OF CENTERVILLE, Bradford, PA

Built 1958 Load: 44.5 t ADT: 2,112

SR 4028

Fair

Over: JUSTICE RUN

2.0 MI N.W. OF BENTLY CRK, Bradford, PA

Built 1961 Load: 44.5 t ADT: 167

T-778 (BR.#1)

Fair

Over: ROCKWELL CREEK

1 M. S. OF BRUSHVILLE, Bradford, PA

Built 1991 Load: 44.5 t ADT: 20

STATE ROAD

Fair

Over: MILL CREEK

1MI E.OF TELFORD 20E06, Bucks, PA

Built 1966 Load: 44.5 t ADT: 7,996

STATE ROAD

Fair

Over: NESHAMINY CREEK

2MI.TO BRISTOL 46C01, Bucks, PA

Built 1939 Load: 44.5 t ADT: 10,382

DURHAM ROAD

Fair

Over: INTERSTATE 295

E.PENNDEL BOROUGH 42E01, Bucks, PA

Built 1972 Load: 44.5 t ADT: 9,408

OLD LINCOLN HIGHWY

Fair

Over: CONRAIL

FALLSINGTON 38G07, Bucks, PA

Built 1938 Load: 44.5 t ADT: 14,513

SOUTH PARK DRIVE

Fair

Over: BRANCH OF TOHICKON CREEK

NOCKAMIXON STATE 10B10, Bucks, PA

Built 1976 Load: 44.5 t ADT: 1,457

MILL ROAD(T360)

Fair

Over: THREEMILE RUN

WEST ROCKHILL TWP.2807J10, Bucks, PA

Built 1930 Load: 44.5 t ADT: 200

VALLEY PARK ROAD

Fair

Over: NORTH BR.NESHAMINY CREEK

PLUMSTEAD TWP. 2922-K1, Bucks, PA

Built 1924 Load: 44.5 t ADT: 100

SR1004

Fair

Over: TRIB TO S BR BEAR CREEK

EAST OF BRUIN, Butler, PA

Built 1919 Load: 44.5 t ADT: 207

SR3007

Fair

Over: BREAKNECK CREEK

VALENCIA BORO, Butler, PA

Built 1978 Load: 44.5 t ADT: 5,078

T-439 WHIPPORWILL

Fair

Over: MULLIGAN RUN

1.1 Miles West of SR 422, Butler, PA

Built 1916 Load: 44.5 t ADT: 50

US 219 SBL

Fair

Over: US 422

OVER TR 422, Cambria, PA

Built 1990 Load: 44.5 t ADT: 2,187

PIPER STREET

Fair

Over: BEAR ROCK RUN

LILLY BORO - Piper St, Cambria, PA

Built 1938 Load: 44.5 t ADT: 205

SR 220-US 220

Fair

Over: REESE HOLLOW

HANNAH, Centre, PA

Built 1925 Load: 44.5 t ADT: 1,505

SR 2012

Fair

Over: GREENBRIAR GAP RUN

2 MI SW COBURN, Centre, PA

Built 1928 Load: 44.5 t ADT: 315

SR 3019

Fair

Over: MUD LICK RUN

3 MI NE MARTHA FURNACE, Centre, PA

Built 1948 Load: 44.5 t ADT: 55

CASSATT ROAD

Fair

Over: NORFOLK SOUTHERN

NORTH OF PAOLI 24D06, Chester, PA

Built 1967 Load: 44.5 t ADT: 8,983

CEDAR HOLLOW ROAD

Fair

Over: VALLEY CREEK

NEAR PAOLI 23G07, Chester, PA

Built 1993 Load: 44.5 t ADT: 3,376

FRIENDS MEETHOUSE

Fair

Over: DOE RUN

NEAR FAGGS MANOR 37B08, Chester, PA

Built 1934 Load: 44.5 t ADT: 584

WOODS ROAD

Fair

Over: LITTLE ELK CREEK

2000FT W OF SR472 3908-A9, Chester, PA

Built 1930 Load: 44.5 t ADT: 400

SR0080 WB

Fair

Over: SR1009

LONESOME WB, Clarion, PA

Built 1965 Load: 44.5 t ADT: 11,868

SR 53-PA 53

Fair

Over: JOPLING RUN

MADERA, Clearfield, PA

Built 1948 Load: 44.5 t ADT: 2,597

SR 219-US 219

Fair

Over: PENTZ RUN

1 MI S DUBOIS, Clearfield, PA

Built 1957 Load: 44.5 t ADT: 3,723

SR 253-PA 253

Fair

Over: LITTLE MUDDY RUN

ALLEMANS, Clearfield, PA

Built 1922 Load: 44.5 t ADT: 1,313

SR 322-US 322

Fair

Over: LAUREL RUN

WALLACETON, Clearfield, PA

Built 1948 Load: 44.5 t ADT: 11,239

SR 322-US 322

Fair

Over: LAUREL RUN

WEST DECATUR, Clearfield, PA

Built 1948 Load: 44.5 t ADT: 11,206

SR 879-PA 879

Fair

Over: SANDY CREEK

FRENCHVILLE, Clearfield, PA

Built 1956 Load: 44.5 t ADT: 1,112

SR 80-I 80

Fair

Over: SR 477-PA 477

EXIT 185 LOGANTON INTER, Clinton, PA

Built 1966 Load: 44.5 t ADT: 7,976

SR 220-US 220

Fair

Over: SR 120 AND SR 2012

CASTANEA, Clinton, PA

Built 1976 Load: 44.5 t ADT: 8,269

SR 220-US 220

Fair

Over: SR 120 AND SR 2012

CASTANEA, Clinton, PA

Built 1976 Load: 44.5 t ADT: 8,448

ON TSR 433

Fair

Over: CHATHAM RUN

CHATHAM RUN, Clinton, PA

Built 1977 Load: 44.5 t ADT: 1,045

SR 2015

Fair

Over: SR 220-US 220

MILL HALL, Clinton, PA

Built 1976 Load: 44.5 t ADT: 5,968

SR 2015

Fair

Over: SR 220-US 220

MILL HALL, Clinton, PA

Built 1976 Load: 44.5 t ADT: 5,557

SR 1026 DANNER RD

Fair

Over: OVER OIL CREEK

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1941 Load: 44.5 t ADT: 517

Showing 9,101-9,150 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.