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 0819

Fair

Over: JACKS RUN

SOUTH GREENSBURG BOROUGH, Westmoreland, PA

Built 1988 Load: 30.8 t ADT: 4,205

SR 0906

Fair

Over: ABAN. R/R

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1952 Load: 30.8 t ADT: 8,414

PA TPK (RAMP 3&3A)

Fair

Over: SR 0030

IRWIN INTERCHANGE, Westmoreland, PA

Built 1939 Load: 30.8 t ADT: 224

T609 Thomas Ave

Fair

Over: BRUSH CREEK

0.1 MI NO SR 4004, Westmoreland, PA

Built 1994 Load: 30.8 t ADT: 3,036

SR 1027

Fair

Over: WILLOW BROOK

NICHOLSN TWP .5 M W TR 92, Wyoming, PA

Built 1953 Load: 30.8 t ADT: 59

US 30; SR 0030

Fair

Over: RR/PRIVATE ACCESS RD

1 MI N OF LR126, York, PA

Built 1969 Load: 30.8 t ADT: 17,653

US 30; SR 0030

Fair

Over: RR/PRIVATE ACCESS RD

1 MILE NORTH OF 462, York, PA

Built 1969 Load: 30.8 t ADT: 18,491

US 30; SR 0030

Fair

Over: PA 74; SR 0074

2.7 MI NORTH OF LR126, York, PA

Built 1969 Load: 30.8 t ADT: 38,477

PA 462; MARKST ST.

Fair

Over: TRIB TO CODORUS CREEK

WEST YORK, York, PA

Built 1934 Load: 30.8 t ADT: 8,694

PA 624; SR 0624

Fair

Over: CABIN CREEK

LONG LEVEL, York, PA

Built 1931 Load: 30.8 t ADT: 2,577

SR 2011

Fair

Over: KREUTZ CREEK

.5 MI S OF WRIGHTSVILLE, York, PA

Built 1970 Load: 30.8 t ADT: 10,619

SR 2040

Fair

Over: TOMS RUN

2 MI.N.W. WOODBINE, York, PA

Built 1952 Load: 30.8 t ADT: 235

T548; VALLEY ROAD

Fair

Over: EBAUGHS CREEK

.2W STEWARTWN/EBAUGH CR, York, PA

Built 1954 Load: 30.8 t ADT: 33

WOODBINE ROAD

Fair

Over: FISHING CREEK

0.8 MI N OF SR851, York, PA

Built 1959 Load: 30.8 t ADT: 1,000

LAWRENCE DRIVE

Fair

Over: SOUTH BRANCH CONEWAGO CR

1E LNG ARM RESV/S BR CONW, York, PA

Built 1970 Load: 30.8 t ADT: 200

MYERS AVENUE

Fair

Over: FISHING CREEK

FISHING CR./WINDSOR, York, PA

Built 1980 Load: 30.8 t ADT: 100

ROOSEVELT BLVD.

Fair

Over: CONRAIL (ABANDONED)

.4MI.SOUTH 5TH ST.3480H07, Philadelphia, PA

Built 1906 Load: 30.8 t ADT: 49,662

ROOSEVELT BLVD.

Fair

Over: OPEN GROUND

AT PALETHORP STR.3481A06, Philadelphia, PA

Built 1911 Load: 30.8 t ADT: 49,662

SCHUYLKILL EXPWAY.

Fair

Over: SCHUYLKILL RIVER;CSX RR

UNIVERSISTY AVE 3589K10, Philadelphia, PA

Built 1956 Load: 30.8 t ADT: 62,903

DELAWARE EXPWAY.

Fair

Over: CASTOR AVENUE

NR.RICHMOND ST 3591F01, Philadelphia, PA

Built 1965 Load: 30.8 t ADT: 165,236

HOLME AVENUE

Fair

Over: PENNYPACK CREEK

NR.WINDCHESTERAVE.3482E01, Philadelphia, PA

Built 1918 Load: 30.8 t ADT: 19,397

BELMONT AVENUE

Fair

Over: Chamounix Drive

FAIRMOUNT PARK 3589F02, Philadelphia, PA

Built 1896 Load: 30.8 t ADT: 17,999

HENRY AVENUE

Fair

Over: BIKE PATH TRIB.WISSAHIC

WEST RIDGE AVE. 3479 G05, Philadelphia, PA

Built 1957 Load: 30.8 t ADT: 28,301

RAMP#4 TO 34TH ST.

Fair

Over: SCHUYLKILL EXPRESSWAY

34TH AND GIRARD 3589J05, Philadelphia, PA

Built 1958 Load: 30.8 t ADT: 8,356

CHESTNUT HILL ROAD

Fair

Over: SAUCON CREEK

WEST OF LIMEPORT PIKE, Lehigh, PA

Built 2000 Load: 30.8 t ADT: 300

RAMP LL

Fair

Over: RAMP TP

.2MI S.BARTRAM AVE3698K10, Philadelphia, PA

Built 2002 Load: 30.8 t ADT: 6,157

SR 99-I 99

Fair

Over: SEDA-COG/NIT&BALD EGL RR

1 MILE EAST PORT MATILDA, Centre, PA

Built 2003 Load: 30.8 t ADT: 11,016

SR 99-I 99

Fair

Over: ACCESS ROAD

2 MI SOUTH PORT MATILDA, Centre, PA

Built 2006 Load: 30.8 t ADT: 6,883

CHURCH ROAD

Fair

Over: US-202 BYPASS RAMP M

NEAR 401 22G7 / 3473K3, Chester, PA

Built 2008 Load: 30.8 t ADT: 3,781

Lyndell Road

Fair

Over: E. Br. Brandywine Creek

At PA-282 3471-A1, Chester, PA

Built 1971 Load: 30.8 t ADT: 500

ST. ELMO STREET

Fair

Over: CEDAR CREEK

SE OF MUHLENBERG COLLEGE, Lehigh, PA

Built 1983 Load: 30.8 t ADT: 500

Mudd School Road

Fair

Over: Green Lick Run

East of Hammondville, Fayette, PA

Built 1972 Load: 30.8 t ADT: 400

Barrington Dr.

Fair

Over: Fish Run

226 from Wexford Road, Allegheny, PA

Built 1992 Load: 30.8 t ADT: 100

Old Abers Creek Rd

Fair

Over: Pierson Run

200 S Old Frankstown Rd., Allegheny, PA

Built 1995 Load: 30.8 t ADT: 250

BAYARD ROAD

Fair

Over: EAST BR. RED CLAY CREEK

N OF CANTERBURY DR3802B03, Chester, PA

Built 1992 Load: 30.8 t ADT: 1,500

WORTHINGTON ROAD

Fair

Over: PINE CREEK

W of Pine Cr Rd 3472 K1, Chester, PA

Built 1980 Load: 30.8 t ADT: 800

CHESTER PIKE

Fair

Over: CSX R.R.

1/4 MI. S. MacDade Blvd., Delaware, PA

Built 1885 Load: 30.8 t ADT: 16,516

OLD MILL ROAD

Fair

Over: TRIB TO MINGO CREEK

W OF MISSMER DR, Montgomery, PA

Built 1988 Load: 30.8 t ADT: 250

T-469 Protectory R

Fair

Over: Trib to Beaver Creek

0.5 MI N of US 30, York, PA

Built 1981 Load: 30.8 t ADT: 400

T-883 Gettysburg P

Fair

Over: Trib Yellow Breeches CK

300 ft SW Chestnut Grove, York, PA

Built 1938 Load: 30.8 t ADT: 2,716

COLONIAL VILLAGE

Fair

Over: STAUFFER RUN

50 YD SOUTH OF WILLOW RD., Lancaster, PA

Built 1989 Load: 30.8 t ADT: 300

PEACE RD

Fair

Over: TRIB GROFF CREEK

EAST OF MAPLE AVE, Lancaster, PA

Built 1985 Load: 30.8 t ADT: 300

Aviation Way

Fair

Over: Burd run

Aviation Way, Dauphin, PA

Built 2000 Load: 30.8 t ADT: 100

HANCOCK-STARLIGHT

Fair

Over: W BR DELAWARE RIV

HANCOCK NY- STARLIGHT PA, Carbon, PA

Built 1937 Load: 31.1 t ADT: 2,421

PUMPING STATION RD

Fair

Over: MARSH CREEK

3.5 MI.S.W. OF GETTYSBURG, Adams, PA

Built 1963 Load: 31.8 t ADT: 569

RAILROAD LANE

Fair

Over: LITTLE MARSH CREEK

L.MARSH CRK.2 SW MCKNTWN, Adams, PA

Built 1962 Load: 31.8 t ADT: 75

SR 0028 SB

Fair

Over: (4009) RP B & BRIDGE ST

70 S.B.O/RP.B & BRIDGE ST, Allegheny, PA

Built 1963 Load: 31.8 t ADT: 31,126

SR 0279 NB

Fair

Over: SR 4014 GASS RD

OVER SR 4014, Allegheny, PA

Built 1988 Load: 31.8 t ADT: 24,663

CLAIRTON-GLASSPORT

Fair

Over: MON NSRC CSX URR

CLAIRTON-GLASSPORT BRIDGE, Allegheny, PA

Built 1987 Load: 31.8 t ADT: 6,432

S APPR McKEESPORT

Fair

Over: 5TH AVE

800 FT S OF MCKEESPRT BR, Allegheny, PA

Built 1973 Load: 31.8 t ADT: 10,209

Showing 3,501-3,550 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.