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

VINE ST.EXWY;RM.VB

Fair

Over: 8TH;7TH ST;RMP.BV

VINE ST.INTERCH. 3590 F07, Philadelphia, PA

Built 1989 Load: 82.6 t ADT: 100,933

STREETS RUN RD

Fair

Over: STREETS RUN

200 YDS.N.E./DOYLE RD., Allegheny, PA

Built 1936 Load: 83.5 t ADT: 16,138

SR 4006

Fair

Over: JENNINGS RUN

MENALLEN & S. UNION TWPS., Fayette, PA

Built 1985 Load: 83.5 t ADT: 5,861

TROUGH CREEK DRIVE

Fair

Over: TROUGH CREEK

1 MI NE OF SR 3031, Huntingdon, PA

Built 1935 Load: 83.5 t ADT: 50

EASTBROOK ROAD

Fair

Over: HOTTENBAUGH RUN

@ INTER. WITH SR 1002, Lawrence, PA

Built 1959 Load: 83.5 t ADT: 2,547

SR 4013

Fair

Over: PINE CREEK

1 MI. E. OF SACRAMENTO, Schuylkill, PA

Built 1931 Load: 83.5 t ADT: 857

STEWART RUN ROAD

Fair

Over: STEWART RUN

PRESIDENT TOWNSHIP, Venango, PA

Built 1920 Load: 83.5 t ADT: 100

GREENSPRING AVE

Fair

Over: BR HOMESTEAD RUN

HV0805 HOMEVILLE CRK #8, Allegheny, PA

Built 1997 Load: 83.5 t ADT: 5,860

FOUNTAIN STREET

Fair

Over: NORFOLK SOUTHERN RR

0.7 Mi N SR76 ADC3479-C6, Philadelphia, PA

Built 1943 Load: 83.5 t ADT: 200

Old Route 13

Fair

Over: Abandoned Railroad

.45MI S OF SR0013 3375-C5, Bucks, PA

Built 1883 Load: 84.4 t ADT: 4,000

SR 26-PA 26

Fair

Over: THOMPSON RUN

LEMONT, Centre, PA

Built 1959 Load: 84.4 t ADT: 17,219

SR 64-PA 64

Fair

Over: ROARING RUN

2 MI W LAMAR, Centre, PA

Built 1958 Load: 84.4 t ADT: 5,703

SR 4006(LR 48085)

Fair

Over: WEST BR.OF MONOCACY CK.

WHITETAIL DEER DRIVE, Northampton, PA

Built 1950 Load: 84.4 t ADT: 375

SR 446-PA 446

Fair

Over: MCCREA RUN

BULLIS MILLS, McKean, PA

Built 1953 Load: 85.3 t ADT: 3,053

SR 62 SHENANGO EXP

Fair

Over: PINE HOLLOW CREEK BR

CITY OF HERMITAGE, Mercer, PA

Built 1955 Load: 85.3 t ADT: 5,419

I-80(LR 794)

Fair

Over: LITTLE POCONO CREEK

BORO OF STROUDSBURG, Monroe, PA

Built 1959 Load: 85.3 t ADT: 56,625

SR 3029

Fair

Over: LAUREL HILL CREEK

VILLAGE OF TRENT, Somerset, PA

Built 1963 Load: 85.3 t ADT: 1,719

CABIN RIDGE LANE

Fair

Over: LINN RUN

LINN RUN STATE PARK, Westmoreland, PA

Built 1997 Load: 85.3 t ADT: 10

Hunting Park Ave

Fair

Over: Second Street

at 2nd Street 28A01, Philadelphia, PA

Built 1908 Load: 85.3 t ADT: 21,000

T-653 Shaffer Road

Fair

Over: WILLS CREEK

.5 MI.S.OF HYNDMAN, Bedford, PA

Built 1920 Load: 86.2 t ADT: 50

MAIN STREET

Fair

Over: SEPTA(DOYLESTOWN LINE)

2.5MI.LR-09060 27K03, Bucks, PA

Built 1912 Load: 86.2 t ADT: 14,342

JACOBY STREET

Fair

Over: SOLOMON RUN

JACOBY STREET JOHNSTOWN, Cambria, PA

Built 1963 Load: 86.2 t ADT: 871

PA 443; SR 0443

Fair

Over: MANADA CREEK

2 MI. N. SHELLSVILLE, Dauphin, PA

Built 1940 Load: 86.2 t ADT: 1,212

SR 0070

Fair

Over: DONNAN AVENUE

CITY OF WASHINGTON, Washington, PA

Built 1960 Load: 86.2 t ADT: 26,186

SR 1012

Fair

Over: CODORUS CREEK

2 MI E OF EMIGSVILLE, York, PA

Built 1956 Load: 86.2 t ADT: 9,081

SR 3007/LawnRd

Fair

Over: CONEWAGO CREEK

LAWN, Lebanon, PA

Built 1936 Load: 87.1 t ADT: 1,081

W PHILADELPHIA ST

Fair

Over: CODORUS CREEK

W PHIL ST; CODORUS; YORK, York, PA

Built 1954 Load: 87.1 t ADT: 12,564

T-512 MAYS MILL RD

Fair

Over: OVER ALLEGH.VALLEY TRAIL

ROCKLAND TOWNSHIP, Venango, PA

Built 1996 Load: 87.1 t ADT: 100

T407W DUTCH CRNR R

Fair

Over: Patterson Run

1 Mi E of Breezy Point, Fulton, PA

Built 2019 Load: 87.2 t ADT: 50

SR 0081 I-81

Fair

Over: NORTH MAIN AVE

SCRANTON CTY OV N MAIN AV, Lackawanna, PA

Built 1958 Load: 88.0 t ADT: 39,499

RAMP BV

Fair

Over: SIXTH STREET

VINE ST.INTERCH. 3590G07, Philadelphia, PA

Built 1989 Load: 88.0 t ADT: 25,741

SR 1013

Fair

Over: TR.SINKING RUN(DRY)

1.5 MI.NE.OF CULP, Blair, PA

Built 1930 Load: 88.9 t ADT: 530

PA 36

Fair

Over: BRUBAKER RUN

1.8 MI.S.OF CLEAR CO.LINE, Cambria, PA

Built 1960 Load: 88.9 t ADT: 1,508

PA 403

Fair

Over: LAUREL RUN

76 FEET NORTH OF SR 3041, Cambria, PA

Built 1948 Load: 88.9 t ADT: 3,468

SR 3048 WAS SR 869

Fair

Over: SANDY RUN

1 MI.W.OF SAINT MICHAEL, Cambria, PA

Built 1977 Load: 88.9 t ADT: 2,150

T-368 SPRING ROAD

Fair

Over: OVER STONE RUN

1.1 MI.E.ST GAME LAND 101, Crawford, PA

Built 1940 Load: 88.9 t ADT: 250

I-70

Fair

Over: LITTLE TONOLOWAY CREEK

1.5MI.E. AMARANTH EXIT, Fulton, PA

Built 1960 Load: 88.9 t ADT: 14,030

PA 272; SR 0272

Fair

Over: HUBER RUN

.3 MI.N. OF SMITHVILLE, Lancaster, PA

Built 1970 Load: 88.9 t ADT: 12,387

SHELLY ROAD

Fair

Over: EAST BR.PERKIOMEN CREEK

0.3 MI SW OF SR 63 3030-D, Montgomery, PA

Built 2000 Load: 88.9 t ADT: 5,226

PA 160

Fair

Over: LAUREL RUN

3 MI.NW.OF WELLERSBURG, Somerset, PA

Built 1963 Load: 88.9 t ADT: 1,528

SR 3006

Fair

Over: SOUTH GLADE RUN

1 MI.W.OF ROCKWOOD, Somerset, PA

Built 1961 Load: 88.9 t ADT: 255

SR 0079 NB SB

Fair

Over: COAL RUN CREEK

1/2 MILE SOUTH OF SR0050, Allegheny, PA

Built 1965 Load: 89.7 t ADT: 90,748

PA TPK (I-76)

Fair

Over: DEER CREEK

INDIANOLA, Allegheny, PA

Built 1952 Load: 89.7 t ADT: 33,531

SR4013

Fair

Over: TRIB TO PATTERSON CREEK

FOSTERS MILLS, Armstrong, PA

Built 1991 Load: 89.7 t ADT: 49

PA TURNPIKE (I-76)

Fair

Over: TRIB BRUSH CREEK

UNIONVILLE, Beaver, PA

Built 1952 Load: 89.7 t ADT: 22,663

US 30

Fair

Over: TRIB.TO SHAWNEE LAKE

0.6 MILE EAST OF TR 96, Bedford, PA

Built 1947 Load: 89.7 t ADT: 4,797

PA TPK (I-76)

Fair

Over: SR 2025 LR 05123

EVERETT, Bedford, PA

Built 1939 Load: 89.7 t ADT: 33,684

PA TPK (I-76)

Fair

Over: BRUSH CREEK

NORTH OF MENCH, Bedford, PA

Built 1939 Load: 89.7 t ADT: 33,684

PA TPK RP TO I-70

Fair

Over: SR 2035

NEAR BREEZEWOOD, Bedford, PA

Built 1939 Load: 89.7 t ADT: 17,320

PA 61 (LR 160)

Fair

Over: PIGEON CREEK

SHOEMAKERSVILLE BOROUGH, Berks, PA

Built 1948 Load: 89.7 t ADT: 21,992

Showing 12,151-12,200 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.