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

US 6

Fair

Over: WALLACE CREEK

1MI.E OFBURLINGTON BORO, Bradford, PA

Built 1950 Load: 47.3 t ADT: 3,390

LAKE ROAD ENTRANCE

Fair

Over: COLYER LAKE BYPASS CANAL

POTTER TOWNSHIP, Centre, PA

Built 2018 Load: 47.3 t ADT: 50

SR 1012 (LR 48087)

Fair

Over: BUSHKILL CREEK

@ JACOBSBURG ENV.CENTER, Northampton, PA

Built 1961 Load: 48.0 t ADT: 1,797

T-301 Powell Rd.

Fair

Over: Brush Creek

0.3 MI S OF GLEN EDEN RD, Butler, PA

Built 2013 Load: 48.0 t ADT: 3,418

T-315 MATTOCKS ROA

Fair

Over: UNNAMED TRIB TO SANDY CK

4.5 MI S OF GENEVA, Crawford, PA

Built 2014 Load: 48.0 t ADT: 100

US 15; SR 0015

Fair

Over: LATIMORE CREEK

N OF YORK SPRINGS, Adams, PA

Built 1963 Load: 48.1 t ADT: 21,392

RED ROCK RD T-327

Fair

Over: MARSH CREEK

3.5 MI.SW OF GETTYSBURG, Adams, PA

Built 1935 Load: 48.1 t ADT: 150

FREEPORT RD

Fair

Over: S.OAKHILL DR.& SQUAW RUN

600N.OF FOX CHAPEL RD., Allegheny, PA

Built 1965 Load: 48.1 t ADT: 31,379

ROYAL VIEW DR

Fair

Over: CROUSE RUN

207002 ROYAL VIEW DR BRDG, Allegheny, PA

Built 1920 Load: 48.1 t ADT: 300

MCARDLE RDWY

Fair

Over: NORFOLK SOUTHERN R/R

064 PJ McArdle Rdwy Via 1, Allegheny, PA

Built 1933 Load: 48.1 t ADT: 9,028

LIBERTY WAY

Fair

Over: HEATHS RUN

HH01 - HEATHS RUN NO. 1, Allegheny, PA

Built 1900 Load: 48.1 t ADT: 2,889

MONRV-TURTL CRK RD

Fair

Over: TURTLE CREEK BRANCH

TL11 TURTLE CREEK NO 11, Allegheny, PA

Built 1990 Load: 48.1 t ADT: 7,700

RAVINE ST

Fair

Over: HOMESTEAD RUN

HV03 HOMEVILLE CR #3, Allegheny, PA

Built 1988 Load: 48.1 t ADT: 2,361

RAMP B

Fair

Over: SR 65 RP.C & REEDSDALE

West End Bridge, Allegheny, PA

Built 1991 Load: 48.1 t ADT: 2,467

SR0268

Fair

Over: GLADE RUN

COWAN STATION NO.2, Armstrong, PA

Built 1988 Load: 48.1 t ADT: 2,654

SR1020

Fair

Over: TRIB TO PINE CREEK

SOUTHWEST OF DAYTON, Armstrong, PA

Built 1943 Load: 48.1 t ADT: 151

PENNSYLVANIA AV

Fair

Over: BRADYS RUN CREEK

200 S.E. OF SR 4027, Beaver, PA

Built 1938 Load: 48.1 t ADT: 15,884

BENNETT RUN RD

Fair

Over: BRANCH BENNETT RUN

100 WEST OF TWP.RD.607, Beaver, PA

Built 1940 Load: 48.1 t ADT: 3,820

SR 4001 LR 04099

Fair

Over: PA TPK (I-76)

WEST OF BEAVER VAL INTG, Beaver, PA

Built 1952 Load: 48.1 t ADT: 703

WHITES HILL ROAD

Fair

Over: BRUSH CREEK

004047 NEW SEWICKLEY TWP, Beaver, PA

Built 1982 Load: 48.1 t ADT: 73

PA 36

Fair

Over: YELLOW CREEK

WATERSIDE, Bedford, PA

Built 1992 Load: 48.1 t ADT: 3,916

I-99 / US 220 NBL

Fair

Over: SR 4009

OVER SR 4009 (CESSNA), Bedford, PA

Built 1978 Load: 48.1 t ADT: 5,816

PA TPK (I-76)

Fair

Over: RAYSTOWN BR JUNIATA RIV

EAST OF NEW BALTIMORE, Bedford, PA

Built 1939 Load: 48.1 t ADT: 31,200

T305 COVERED BR.RD

Fair

Over: TOWN CREEK

HEWITT, Bedford, PA

Built 1879 Load: 48.1 t ADT: 100

T306 TOWN CREEK RD

Fair

Over: BLACK VALLEY BR TOWN CRK

HEWITT, Bedford, PA

Built 1993 Load: 48.1 t ADT: 35

1ST STREET

Fair

Over: BLOODY RUN

EVERETT BORO 1ST STREET, Bedford, PA

Built 1920 Load: 48.1 t ADT: 205

I-78(LR 141)

Fair

Over: CROSSKILL CREEK

NEAR LEBANON COUNTY LINE, Berks, PA

Built 1929 Load: 48.1 t ADT: 33,889

SR 501(LR 423)

Fair

Over: BR.LITTLE SWATARA CR

2 MI.N.LEBANON CO.LINE, Berks, PA

Built 1982 Load: 48.1 t ADT: 6,200

SR 645(LR 06004)

Fair

Over: TRIB.TO CROSSKILL CREEK

CAMP SWATARA ROAD, Berks, PA

Built 1958 Load: 48.1 t ADT: 1,673

SHEEP HILL ROAD

Fair

Over: BIEBER CREEK

WEST OF FORGEDALE ROAD, Berks, PA

Built 1973 Load: 48.1 t ADT: 50

MAIN STREET

Fair

Over: WYOMISSING CREEK

SE MOHNTON, Berks, PA

Built 1981 Load: 48.1 t ADT: 1,200

PA 36

Fair

Over: HALTER CREEK

1 MI.N.OF ROARING SPRING, Blair, PA

Built 1997 Load: 48.1 t ADT: 18,702

I-99 / US 220 SBL

Fair

Over: T349

1 MI.S.OF EAST FREEDOM, Blair, PA

Built 1988 Load: 48.1 t ADT: 5,455

U.S 6

Fair

Over: SUGAR CREEK

1.5 MILE NORTH OF TOWANDA, Bradford, PA

Built 1996 Load: 48.1 t ADT: 8,023

PA 154

Fair

Over: BEECH FLATS CREEK

SOUTH OF BEECH FLATS, Bradford, PA

Built 1971 Load: 48.1 t ADT: 269

SR 1014

Fair

Over: TUSCARORA CREEK

3 MI SOUTH OF SILVARA, Bradford, PA

Built 1965 Load: 48.1 t ADT: 339

BALLARD(TROY BR 1)

Fair

Over: WEST BRANCH SUGAR CREEK

BALLARD ST TROY BORO, Bradford, PA

Built 1958 Load: 48.1 t ADT: 500

EAST AFTON AVENUE

Fair

Over: DELAWARE CANAL/3151-F2

YARDLEY BOROUGH 33D11, Bucks, PA

Built 1932 Load: 48.1 t ADT: 3,570

QUARRY ROAD

Fair

Over: DEEP RUN

WEST OF TR 611 16G05, Bucks, PA

Built 1990 Load: 48.1 t ADT: 394

FALLSINGTON AVENUE

Fair

Over: MARTINS CREEK

.2MI.S.NEWPORTVIL. 38G09, Bucks, PA

Built 1960 Load: 48.1 t ADT: 4,203

SR0008

Fair

Over: SLIPPERY ROCK CREEK

EAST OF SLIPPERY ROCK, Butler, PA

Built 1989 Load: 48.1 t ADT: 4,488

T-414 MUDDY CREEK

Fair

Over: MUDDY CREEK

0.1 MI S OF MERCER RD, Butler, PA

Built 1930 Load: 48.1 t ADT: 150

T-747 OLD RTE 8 N

Fair

Over: GLADE RUN

BTW T492 & T490, Butler, PA

Built 1993 Load: 48.1 t ADT: 400

T-519 HIGGINS CORN

Fair

Over: N BR SLIPPERY ROCK CREEK

0.45 MI NW of SR 4010, Butler, PA

Built 1905 Load: 48.1 t ADT: 100

GILBERT ST

Fair

Over: NORFOLK SOUTHERN RR

GILBERT ST BROWNSTOWN R, Cambria, PA

Built 1994 Load: 48.1 t ADT: 1,762

SR 155-PA 155

Fair

Over: FOURMILE RUN

3 MI N EMPORIUM, Cameron, PA

Built 1928 Load: 48.1 t ADT: 1,571

PA TPK (I-476)

Fair

Over: SR 0940 LR408

NEAR POCONO INTERCHANGE, Carbon, PA

Built 1955 Load: 48.1 t ADT: 23,657

PA TPK (I-476)

Fair

Over: PA TPK (I-476) RP AB

POCONO INTERCHANGE, Carbon, PA

Built 1955 Load: 48.1 t ADT: 23,657

SCENIC DRIVE

Fair

Over: HICKORY RUN

HICKORY RUN SP (WORKSHOP), Carbon, PA

Built 1936 Load: 48.1 t ADT: 50

SR 64-PA 64

Fair

Over: LITTLE FISHING CREEK

LAMAR, Centre, PA

Built 1958 Load: 48.1 t ADT: 4,048

Showing 10,151-10,200 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.