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 4015

Fair

Over: RACCOON CREEK

MOUNT PLEASANT TOWNSHIP, Washington, PA

Built 1941 Load: 59.9 t ADT: 1,158

SR 0711

Fair

Over: HENDRICKS CREEK

FAIRFIELD TOWNSHIP, Westmoreland, PA

Built 1972 Load: 59.9 t ADT: 2,181

SR 3087

Fair

Over: JACOBS CK 2 R/R PRV DR

SCOTTDALE/EVERSON BRIDGE, Westmoreland, PA

Built 1990 Load: 59.9 t ADT: 4,543

SR 0006 TR 6

Fair

Over: TUNKHANNOCK CREEK

TUNKHANCK TWP .9M W TR 92, Wyoming, PA

Built 1994 Load: 59.9 t ADT: 10,670

T-564 DODDS ROAD

Fair

Over: ROBINSON RUN

1.5 MI E OF INT W/ SR 8, Butler, PA

Built 2003 Load: 59.9 t ADT: 100

PA 309 BY-PASS

Fair

Over: PA TURNPIKE RAMP AB

FORT WASHINGTON INT., Montgomery, PA

Built 2008 Load: 59.9 t ADT: 65,877

SR 0167 TR 167

Fair

Over: HOP BOTTOM CREEK

BROKLYN TWP .2M N SR 2028, Susquehanna, PA

Built 1961 Load: 59.9 t ADT: 984

T-605 Kough Drive

Fair

Over: Brubaker Run

1000 ft W SR53 Dean, Cambria, PA

Built 1945 Load: 59.9 t ADT: 10

PINE CREEK RD

Fair

Over: LITTLE PINE CREEK

1/2 MILE FR WETZEL RD, Allegheny, PA

Built 1962 Load: 60.8 t ADT: 2,753

LINCOLN HW

Fair

Over: OVER RACCOON CR.

LR 538 OVER RACCOON CREEK, Beaver, PA

Built 1984 Load: 60.8 t ADT: 5,138

PA TPK (I-376) EB

Fair

Over: TRIB JORDAN RUN

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 60.8 t ADT: 9,871

SR 183(LR 310)

Fair

Over: NORFOLK SOUTHERN RR

SCHUYLKILL AVE, Berks, PA

Built 1912 Load: 60.8 t ADT: 14,759

T-428 GRUBB RD

Fair

Over: S BR SLIPPERY ROCK CR

BTW T540 & SR4010, Butler, PA

Built 1912 Load: 60.8 t ADT: 100

SR 4007

Fair

Over: CALIFORNIA RUN

1.5 M.NW.OF COLVER, Cambria, PA

Built 1937 Load: 60.8 t ADT: 535

ON TSR 568

Fair

Over: BALD EAGLE CREEK

JULIAN, Centre, PA

Built 1990 Load: 60.8 t ADT: 652

POTTSTOWN PIKE

Fair

Over: VALLEY CREEK

EXTON CROSSROADS 21H11, Chester, PA

Built 1954 Load: 60.8 t ADT: 36,125

LINCOLN HIGHWAY

Fair

Over: AMTRAK

WEST COATESVILLE 28G5, Chester, PA

Built 1997 Load: 60.8 t ADT: 8,539

SR 2024

Fair

Over: RAILS TO TRAILS

1 MI E CURWENSVILLE, Clearfield, PA

Built 1962 Load: 60.8 t ADT: 1,060

SR 4028 BR.

Fair

Over: WEST BRANCH SHINGLE RUN

6 NI N OF IOLA, Columbia, PA

Built 1950 Load: 60.8 t ADT: 81

SR 4033

Fair

Over: WOLFHOUSE RUN

2.5 MI NE OF SERENO, Columbia, PA

Built 1952 Load: 60.8 t ADT: 91

SR 4033 BR.

Fair

Over: OVER WOLFHOUSE RUN

2 MI N OF SERENO, Columbia, PA

Built 1952 Load: 60.8 t ADT: 91

SR 4049

Fair

Over: W. BR. FISHING CREEK

VILLAGE OF ELK GROVE, Columbia, PA

Built 1932 Load: 60.8 t ADT: 242

SR 2010

Fair

Over: MANADA CREEK

SAND BEACH, Dauphin, PA

Built 1941 Load: 60.8 t ADT: 1,585

LANCASTER AVENUE

Fair

Over: HARDINGS RUN

LANCASTER AVE. 14G09, Delaware, PA

Built 1990 Load: 60.8 t ADT: 29,090

YALE AVENUE

Fair

Over: CRUM CREEK

NETHERPROVIDENCE 34H10, Delaware, PA

Built 1977 Load: 60.8 t ADT: 6,084

SR 1001 LK.PLSNT.R

Fair

Over: OVER CSX RAILROAD

MILL CREEK TOWNSHIP, Erie, PA

Built 1954 Load: 60.8 t ADT: 2,253

SR 4005

Fair

Over: LITTLE BRUSH CREEK

CRYSTAL SPRINGS, Fulton, PA

Built 1963 Load: 60.8 t ADT: 150

PA 45

Fair

Over: FOWLER RUN

4 MI E TR 350 GRAYSVILLE, Huntingdon, PA

Built 1951 Load: 60.8 t ADT: 1,760

PA TPK (I-476)

Fair

Over: SR3003 LR952

SCRANTON CITY, Lackawanna, PA

Built 1957 Load: 60.8 t ADT: 1,196

US 222; SR 0222

Fair

Over: BR. BEAVER CREEK

1 MI NW OF QUARRYVILLE, Lancaster, PA

Built 1984 Load: 60.8 t ADT: 9,914

T-783 LONG LANE

Fair

Over: BLACK CREEK

500 FT EAST OF SR 897, Lancaster, PA

Built 1993 Load: 60.8 t ADT: 205

SOUTH MAIN STREET

Fair

Over: MONOCACY CREEK

NORTH OF LEHIGH STREET, Lehigh, PA

Built 1966 Load: 60.8 t ADT: 1,000

T-762 (BR # 301)

Fair

Over: JACOBS RUN

0.5 MI. SE OF CEDAR RUN, Lycoming, PA

Built 1993 Load: 60.8 t ADT: 15

SCHUYLKILL EXP-WAY

Fair

Over: CROTON ROAD

E. K OF P 34E02/3366K8, Montgomery, PA

Built 1950 Load: 60.8 t ADT: 96,061

DEKALB STREET

Fair

Over: SEPTA (P&W)

SOUTH BRIDGEPORT 3367D05, Montgomery, PA

Built 1987 Load: 60.8 t ADT: 13,767

US RT. 15 & 11

Fair

Over: OVER CARRIE RUN

SHAMOKIN DAM BOROUGH, Snyder, PA

Built 1962 Load: 60.8 t ADT: 26,433

SR 1018

Fair

Over: BEAVERDAM RUN

3 MI.E.OF CENTRAL CITY, Somerset, PA

Built 1938 Load: 60.8 t ADT: 220

SR 4027

Fair

Over: SOUTH FORK BENS CREEK

FORWARDSTOWN, Somerset, PA

Built 1938 Load: 60.8 t ADT: 181

SR 2005

Fair

Over: BOONE RUN

BORO OF BLOSSBURG, Tioga, PA

Built 1942 Load: 60.8 t ADT: 2,029

SR 49

Fair

Over: OVER TROUPS CREEK

BORO OF KNOXVILLE, Tioga, PA

Built 1974 Load: 60.8 t ADT: 3,676

SR 2025

Fair

Over: MARVIN CREEK

1 MI S OF COVINGTON, Tioga, PA

Built 1932 Load: 60.8 t ADT: 510

SR 3022 GRAND ARMY

Fair

Over: OVER BROKENSTRAW CREEK

BROKENSTRAW TOWNSHIP, Warren, PA

Built 1969 Load: 60.8 t ADT: 1,353

ADAMS POND ROAD

Fair

Over: WILLIAMS POND INLET

1.3M WEST OF SR 1011, Wayne, PA

Built 1957 Load: 60.8 t ADT: 80

SR 2033

Fair

Over: FOURMILE RUN

COOK TOWNSHIP, Westmoreland, PA

Built 1953 Load: 60.8 t ADT: 729

SR 3001

Fair

Over: N BR MEHOOPANY CREEK

FORKSTON TWP JCT TR 87, Wyoming, PA

Built 1987 Load: 60.8 t ADT: 253

PA 182; SR 0182

Fair

Over: S BR CODORUS CREEK

1 MILE S OF WEST YORK, York, PA

Built 1985 Load: 60.8 t ADT: 8,391

GIRARD AVENUE

Fair

Over: SCHUYLKILL EXPWY MLK DR

FAIRMOUNT PARK 3589J04, Philadelphia, PA

Built 1957 Load: 60.8 t ADT: 42,549

SCHUYLKILL EXWY.WB

Fair

Over: RAMP A AND RAMP B

I-76 AT VINE ST. 3590A07, Philadelphia, PA

Built 1989 Load: 60.8 t ADT: 64,736

WISSAHICKON AVENUE

Fair

Over: ROOSEVELT BLVD.EXTEN.

ROOSEVELT BLVD. 3480C08, Philadelphia, PA

Built 1960 Load: 60.8 t ADT: 12,244

CITY LINE AVE.S.B.

Fair

Over: SCHUYLKILL R;RD; NSRC

EAST OF I-76 3479 G09, Philadelphia, PA

Built 1955 Load: 60.8 t ADT: 6,248

Showing 11,601-11,650 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.