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

PARKS RUN RD

Fair

Over: MILLERS RUN

MS06 MILLERS RUN NO. 6, Allegheny, PA

Built 1890 Load: 51.7 t ADT: 250

CALIFORNIA AV

Fair

Over: SPRUCE RUN RD SPRUCE RUN

P50008 AVALON BRDG-PT12, Allegheny, PA

Built 1994 Load: 51.7 t ADT: 6,664

RAMP J

Fair

Over: SR 0028 NB-SB RAMP H

NEAR HEINZ PLANT, Allegheny, PA

Built 1988 Load: 51.7 t ADT: 5,508

SR0210

Fair

Over: TRIB TO MILLER RUN

NORTH OF ELDERTON, Armstrong, PA

Built 1965 Load: 51.7 t ADT: 1,766

T-427 CEMETERY RD

Fair

Over: SUGAR CREEK

225 East of SR 68, Armstrong, PA

Built 1930 Load: 51.7 t ADT: 50

PA TPK (I-76)

Fair

Over: SR 0588 LR04026

TR588 UNDER PIKE, Beaver, PA

Built 1952 Load: 51.7 t ADT: 22,663

SR 1005

Fair

Over: BEAVER CREEK

1 MI.S.OF LOYSBURG, Bedford, PA

Built 1940 Load: 51.7 t ADT: 624

PA TPK (I-76)

Fair

Over: RAYSTN BR.TO JUNIATA RI.

NEAR MANNS CHOICE, Bedford, PA

Built 1939 Load: 51.7 t ADT: 30,600

T-518 ADAMS RUN RD

Fair

Over: ADAMS RUN

2 MI.S.OF FISHERTOWN, Bedford, PA

Built 2003 Load: 51.7 t ADT: 50

SR 4024(LR 06178)

Fair

Over: NORTHKILL CREEK

3 M.S.OF SHARTLESVILLE, Berks, PA

Built 1962 Load: 51.7 t ADT: 160

STATION ROAD

Fair

Over: MILL RACE

SUNDAYS MILL, Berks, PA

Built 1993 Load: 51.7 t ADT: 479

SR 4008

Fair

Over: GLENWHITE RUN

3.5 MI.W.OF ALTOONA, Blair, PA

Built 1932 Load: 51.7 t ADT: 1,527

24 1/2 STREET

Fair

Over: NORFOLK SOUTHERN RR

24 1/2 ST ALTOONA, Blair, PA

Built 1990 Load: 51.7 t ADT: 7,701

CAFFERTY ROAD

Fair

Over: TINICUM CREEK

FRANKENFIELD BRDG. 11F08, Bucks, PA

Built 1872 Load: 51.7 t ADT: 100

FAIRHILL SCHOOL RD

Fair

Over: TRIBUTARY NESHAMINY CRK

.7 Mi NE PA-309 3032-F1, Bucks, PA

Built 1984 Load: 51.7 t ADT: 300

SR0068

Fair

Over: SPRING STREET

HARMONY BORO, Butler, PA

Built 1958 Load: 51.7 t ADT: 7,689

SR 3041

Fair

Over: LAUREL RUN

3.5 MI.N.OF JOHNSTOWN, Cambria, PA

Built 1962 Load: 51.7 t ADT: 856

T-444

Fair

Over: PA TPK (I-476)

1 MI-W OF BELTZVILLE LAKE, Carbon, PA

Built 1956 Load: 51.7 t ADT: 200

SCENIC DRIVE

Fair

Over: HICKORY RUN

1/2MI NE BOULDER FIELD RD, Carbon, PA

Built 1930 Load: 51.7 t ADT: 55

ON TSR 305

Fair

Over: LOWER THREE RUNS

2 MI EAST OF POTTERSDALE, Clinton, PA

Built 1940 Load: 51.7 t ADT: 70

SR 42

Fair

Over: OVER CATAWISSA CREEK

CATAWISSA BOROUGH, Columbia, PA

Built 1956 Load: 51.7 t ADT: 8,819

SR 18

Fair

Over: OVER CROOKED CREEK TRIB

WEST FALLOWFIELD TOWNSHIP, Crawford, PA

Built 1964 Load: 51.7 t ADT: 2,043

SR 4012 SHADELAND

Fair

Over: OVER CONNEAUT CREEK BR

BEAVER TOWNSHIP, Crawford, PA

Built 1936 Load: 51.7 t ADT: 139

US 11; SR 0581

Fair

Over: 641;Trindle Rd

CAMP HILL, Cumberland, PA

Built 1961 Load: 51.7 t ADT: 76,691

PA 225; SR 0225

Fair

Over: CLARKS CREEK

1MI N OF DAUPHIN, Dauphin, PA

Built 1995 Load: 51.7 t ADT: 9,526

SR 2005

Fair

Over: IRON RUN

2 MI.E. MIDDLETOWN, Dauphin, PA

Built 1980 Load: 51.7 t ADT: 648

MEDIA BY-PASS

Fair

Over: SANDY BANK ROAD(T359)

.5MI.NORTH PA-252 34D02, Delaware, PA

Built 1959 Load: 51.7 t ADT: 54,536

INTERSTATE 95(NB)

Fair

Over: AMTRAK

.5MI.S.STEWART AVE.44A01, Delaware, PA

Built 1975 Load: 51.7 t ADT: 43,587

CLIFTON AVENUE

Fair

Over: CSX RAILROAD

SOUTH MCDADE BLVD. 35K07, Delaware, PA

Built 1987 Load: 51.7 t ADT: 9,357

RAMP B COMM BARRY

Fair

Over: SEVENTH STREET

RAMP B COMM BARRY 43D06, Delaware, PA

Built 1974 Load: 51.7 t ADT: 4,555

US 30

Fair

Over: SINDELDECKERS RUN

SALUVIA, Fulton, PA

Built 1990 Load: 51.7 t ADT: 2,968

SR 3007

Fair

Over: WHITETHORN RUN

RICHHILL TOWNSHIP, Greene, PA

Built 1916 Load: 51.7 t ADT: 30

US 22

Fair

Over: EMMAS CREEK

0.9 MILE EAST OF TR 305, Huntingdon, PA

Built 1930 Load: 51.7 t ADT: 10,653

SR 4013

Fair

Over: GENSIMORE RUN

2 MI.SE.OF BIRMINGHAM, Huntingdon, PA

Built 1959 Load: 51.7 t ADT: 449

SR1045

Fair

Over: BROADHEAD RUN

BROADHEAD RUN NO.3, Indiana, PA

Built 1937 Load: 51.7 t ADT: 187

MAIN DAY USE ROAD

Fair

Over: LITTLE YELLOW CREEK

1200 FT WEST OF SR 259, Indiana, PA

Built 1975 Load: 51.7 t ADT: 335

SR 0011 TR 11

Fair

Over: SR 6011 OAK ST EXIT

SCRANTON CITY OAK ST EXIT, Lackawanna, PA

Built 1963 Load: 51.7 t ADT: 18,902

SR 0081 I-81 SB

Fair

Over: I-476 PA TURNPIKE

MOOSIC BORO OVER TURNPIKE, Lackawanna, PA

Built 1966 Load: 51.7 t ADT: 26,216

PA TPK (I-476)

Fair

Over: LACKA. RV NS & RBMN RR

MOOSIC BOROUGH, Lackawanna, PA

Built 1955 Load: 51.7 t ADT: 6,576

SR 1051 Main St.

Fair

Over: LITTLE COCALICO CREEK

SE CORNER OF DENVER BORO, Lancaster, PA

Built 1934 Load: 51.7 t ADT: 5,566

SR 0072 LR 138

Fair

Over: PA TPK (I-76)

N ELSTONVILLE, Lancaster, PA

Built 1950 Load: 51.7 t ADT: 14,399

GOLF RD T-471

Fair

Over: TRIB SWATARA CRK.

2.1S SHIRKSVILLE/TR.SWATY, Lebanon, PA

Built 1930 Load: 51.7 t ADT: 200

US 22(LR 443 WB)

Fair

Over: T-572(BLUE BARN RD.)

CHAPMAN EXIT, Lehigh, PA

Built 1958 Load: 51.7 t ADT: 25,047

I 78(LR 1045)

Fair

Over: NORFOLK/SOUTHERN RR

1.2 MI.E.OF PA100, Lehigh, PA

Built 1988 Load: 51.7 t ADT: 113,637

SR 2037(LR 39077)

Fair

Over: NORFOLK SO. (LINE 0312)

FOURTH ST BORO OF EMMAUS, Lehigh, PA

Built 1918 Load: 51.7 t ADT: 2,148

PA TPK (I-476)

Fair

Over: JORDAN CREEK

NEAR ALLENTOWN OREFIELD, Lehigh, PA

Built 1955 Load: 51.7 t ADT: 27,609

PA TPK (I-476)

Fair

Over: PINE CREEK

1 MI N OF LEHIGH RIVER, Luzerne, PA

Built 1956 Load: 51.7 t ADT: 17,056

SR 3021 MEMORIAL A

Fair

Over: LYCOMING CREEK

MEMORIAL AVENUE, Lycoming, PA

Built 1987 Load: 51.7 t ADT: 3,376

T-710

Fair

Over: STRODES RUN

0.4 MI NORTH OF SR0022, Mifflin, PA

Built 1920 Load: 51.7 t ADT: 600

SR 1005(LR 45018)

Fair

Over: MICHAEL CREEK

1.3 M. N.OF PA 191, Monroe, PA

Built 1932 Load: 51.7 t ADT: 71

Showing 10,801-10,850 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.