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 4005

Good

Over: FRANKSTOWN BR JUNIATA R

NEFF BRIDGE, Huntingdon, PA

Built 1889 Load: 31.8 t ADT: 235

TROUGH CREEK DRIVE

Good

Over: TROUGH CREEK

500 FT SE OF SR 3031, Huntingdon, PA

Built 1935 Load: 31.8 t ADT: 50

HABECKER CHURCH RD

Good

Over: W BR LITTLE CONESTOGA CR

1/2 MI SW OF SR 3031, Lancaster, PA

Built 2000 Load: 31.8 t ADT: 260

T-610 HOOVER RD

Good

Over: AMTRAK

500 FT SOUTH OF SR 30, Lancaster, PA

Built 1989 Load: 31.8 t ADT: 410

PA TPK (I-476)

Good

Over: SR2023 LR39017

1 MI SOUTH OF EMMAUS, Lehigh, PA

Built 1955 Load: 31.8 t ADT: 49,446

SR 1006 RUTTER AVE

Good

Over: SR 0309 TR 309

KINGSTON BORO OVER TR 309, Luzerne, PA

Built 1976 Load: 31.8 t ADT: 19,397

SR 1006

Good

Over: OVER LYCOMING CREEK

VILLAGE OF BODINES, Lycoming, PA

Built 1991 Load: 31.8 t ADT: 439

SR 2014

Good

Over: GLADE RUN

100 FT N MUNCY BORO, Lycoming, PA

Built 1978 Load: 31.8 t ADT: 10,093

SR 19 PERRY HWY.

Good

Over: OVER OTTER CREEK

FAIRVIEW TOWNSHIP, Mercer, PA

Built 1995 Load: 31.8 t ADT: 2,222

SR 2102 CLNTVLLE R

Good

Over: OVER SR 79 SB

FINDLEY TOWNSHIP, Mercer, PA

Built 1966 Load: 31.8 t ADT: 210

OLD WELSH ROAD

Good

Over: SEPTA

WILLOW GROVE 3259-B09, Montgomery, PA

Built 1991 Load: 31.8 t ADT: 11,436

TRUMBAUER ROAD

Good

Over: TOWAMENCIN CREEK

1 Mi NW PA-363 3143-F5, Montgomery, PA

Built 1907 Load: 31.8 t ADT: 811

I- 78EB(LR 1045)

Good

Over: SO.MT.DRIVE(T-422)

I-78 OVER SO.MT. DRIVE, Northampton, PA

Built 1988 Load: 31.8 t ADT: 27,801

SR 1002 (LR 48025)

Good

Over: MUD RUN

2 MI.S.OF MARTINS CREEK, Northampton, PA

Built 1978 Load: 31.8 t ADT: 4,030

T-396 NOTCH ROAD

Good

Over: W BR PINE CRK

500 FT SOUTH OF SR 2002, Potter, PA

Built 1960 Load: 31.8 t ADT: 80

SR 1011

Good

Over: TRIBUTARY TO PENNS CREEK

5 MI NW OF SELINSGROVE, Snyder, PA

Built 1973 Load: 31.8 t ADT: 959

SR 2012

Good

Over: TRIB TO SUSQUEHANNA RVR

3 MI. W OF PORT TREVORTON, Snyder, PA

Built 1978 Load: 31.8 t ADT: 168

COVER. BR.RD T-600

Good

Over: OVER MIDDLE CREEK

1.5 MI.NE OF BEAVERTOWN, Snyder, PA

Built 1979 Load: 31.8 t ADT: 200

SR 0367 TR 367

Good

Over: TUSCARORA CREEK

AUBURN TWP .3 M S SR 3004, Susquehanna, PA

Built 1975 Load: 31.8 t ADT: 368

I-80 EB

Good

Over: OVER SR 1010

3 MI W OF WHITE DEER, Union, PA

Built 1970 Load: 31.8 t ADT: 9,978

I-80 WB

Good

Over: OVER US 15 NB & SB

10 MI N OF LEWISBURG, Union, PA

Built 1962 Load: 31.8 t ADT: 13,946

SR 3101 PORTER RD

Good

Over: OVER SR 80 EB/WB

CLINTONVILLE BOROUGH, Venango, PA

Built 1965 Load: 31.8 t ADT: 112

SR 4018 ACADEMY ST

Good

Over: OVER LAKE CREEK

COOPERSTOWN BOROUGH, Venango, PA

Built 1988 Load: 31.8 t ADT: 295

SR 0307 TR 307

Good

Over: OSTERHOUT CREEK

TUNKHANNOCK TP 1M E TR 92, Wyoming, PA

Built 1992 Load: 31.8 t ADT: 2,004

Southampton Road

Good

Over: CSX

W of London Road 10A07, Philadelphia, PA

Built 1975 Load: 31.8 t ADT: 6,000

Gowen Avenue

Good

Over: SEPTA (Chestnut Hill E)

E of Germantown Ave 17B05, Philadelphia, PA

Built 1932 Load: 31.8 t ADT: 4,250

42nd Street

Good

Over: AMTRAK (Pittsburgh ML)

S of Poplar St - 3589-G05, Philadelphia, PA

Built 1910 Load: 31.8 t ADT: 8,000

SR 0006 TR 6 CSY H

Good

Over: SR2008 MRSHWD RD EXIT 1

THROOP BORO OVER SR 2008, Lackawanna, PA

Built 1997 Load: 31.8 t ADT: 12,496

SR 0079

Good

Over: SR 2006

AMWELL TWP, Washington, PA

Built 2001 Load: 31.8 t ADT: 12,072

U.S. 30 SR0030

Good

Over: NOR/SOUTH&AMTRAK

2000E. OF SR 4020, Lancaster, PA

Built 2002 Load: 31.8 t ADT: 95,398

STATION STREET

Good

Over: STUMP CREEK

0.1 MILE S OF US RTE 119, Jefferson, PA

Built 2002 Load: 31.8 t ADT: 73

SR 0040

Good

Over: YOUGHIOGHENY RIVER DAM

YOUGH DAM (SOMERFIELD), Fayette, PA

Built 2005 Load: 31.8 t ADT: 3,573

MONOCACY HILL ROAD

Good

Over: TRIB. TO MONOCACY CREEK

N. SIDE OF MONOCACY HILL, Berks, PA

Built 2005 Load: 31.8 t ADT: 250

SR 22-US 22

Good

Over: MACEDONIA RUN

2 MILE NW CUBA MILLS, Juniata, PA

Built 2006 Load: 31.8 t ADT: 8,756

SR-22

Good

Over: MACEDONIA RUN

1.5 MI. W. ARCH ROCK ENT, Juniata, PA

Built 2006 Load: 31.8 t ADT: 9,056

S.R 4024

Good

Over: BRANCH EQUINUNK CREEK

0.1 MILE WEST OF SR 4007, Wayne, PA

Built 2007 Load: 31.8 t ADT: 140

T-469 FITZGERALD

Good

Over: CHERRY RUN

BTW T880 & SR3056, Indiana, PA

Built 2005 Load: 31.8 t ADT: 20

PA TPK (I-476)

Good

Over: SR 2002 (Schultz Rd)

West of North Wales, Montgomery, PA

Built 2016 Load: 31.8 t ADT: 65,329

PA TPK (I-76)

Good

Over: Alex. Spring Creek

West Pennsboro Twp., Cumberland, PA

Built 2017 Load: 32.1 t ADT: 21,102

PIFER ROAD

Good

Over: FORK RUN

UNKNOWN, Clearfield, PA

Built 2022 Load: 32.1 t ADT: 50

HILL TOP RD

Good

Over: SR 0079 NB-SB

2 1/2 MI. S.OF RSLYN FRMS, Allegheny, PA

Built 1967 Load: 32.4 t ADT: 2,892

SR 0376 WB

Good

Over: SR 0151

HOPEWELL INTERCHANGE, Beaver, PA

Built 1967 Load: 32.4 t ADT: 14,291

SR 89 LAKE STREET

Good

Over: OVER SIXTEEN MILE CREEK

NORTH EAST TOWNSHIP, Erie, PA

Built 1930 Load: 32.4 t ADT: 1,306

SR 4002 CARLISLE

Good

Over: OVER BOOTH RUN

SOUTH PYMATUNING TOWNSHIP, Mercer, PA

Built 1963 Load: 32.4 t ADT: 405

T-633 TURBOT TWP.

Good

Over: OVER MUDDY RUN

2 MI N OF MILTON, Northumberland, PA

Built 1921 Load: 32.4 t ADT: 650

SR 322 28th Div Hw

Good

Over: OVER SUGAR CREEK

SUGAR CREEK BOROUGH, Venango, PA

Built 1966 Load: 32.4 t ADT: 4,210

SR 27 GRAND STREET

Good

Over: OVER ALLEGHENY RAILROAD

PITTSFIELD TOWNSHIP, Warren, PA

Built 1941 Load: 32.4 t ADT: 2,120

SR 6006 PENN AVE.E

Good

Over: OVER GLADE RUN

CITY OF WARREN, Warren, PA

Built 1931 Load: 32.4 t ADT: 8,729

DEEMS BRIDGE T-948

Good

Over: PIKE RUN

150 FROM SR 2071, Washington, PA

Built 1903 Load: 32.4 t ADT: 300

SR 0066

Good

Over: KISKIMINETAS RIVER

APOLLO BRIDGE, Westmoreland, PA

Built 2004 Load: 32.4 t ADT: 13,615

Showing 12,901-12,950 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.