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

T-958 BOALSBURG PK

Fair

Over: SPRING CREEK

700 FT N OF SR 45, Centre, PA

Built 1922 Load: 19.1 t ADT: 1,470

DOE RUN CHURCH RD

Fair

Over: BUCK RUN

E FALLOWFIELD TWP 3690-A2, Chester, PA

Built 1914 Load: 19.1 t ADT: 155

SHOEN ROAD

Fair

Over: BRANCH OF VALLEY CREEK

At Pa-100 3472-J4, Chester, PA

Built 1930 Load: 19.1 t ADT: 3,500

SR 0080 WB

Fair

Over: SR 2015 & ABAND RR

HENDERSON WB, Clarion, PA

Built 1966 Load: 19.1 t ADT: 9,982

T-391 JEFFERSON RD

Fair

Over: BEAVER CREEK

0.5 mi WNW int w/ SR4005, Clarion, PA

Built 1960 Load: 19.1 t ADT: 50

T-789 ATHENS ROAD

Fair

Over: OVER FEDERAL RUN

ATHENS & BLOOMFIELD TWPS., Crawford, PA

Built 1920 Load: 19.1 t ADT: 250

T-336; QUARYHIL RD

Fair

Over: I-81; SR 0081

2.5 MI.S. EXIT #37, Cumberland, PA

Built 1963 Load: 19.1 t ADT: 92

SR 3014 (STATE ST)

Fair

Over: AMTRAK / NSRC / PA 230

STATE ST. BRIDGE H-BURG, Dauphin, PA

Built 1930 Load: 19.1 t ADT: 12,245

FIELDHOUSE LANE

Fair

Over: 0320 CHESTER ROAD

0.9M NW OF SR0476 3697-D6, Delaware, PA

Built 1953 Load: 19.1 t ADT: 650

RAMP N SOUTHBOUND

Fair

Over: LR 180:EB WB RAMP A

HIGHLAND AVE.INTER.42K06, Delaware, PA

Built 1968 Load: 19.1 t ADT: 3,069

T-994 ASHTON ROAD

Fair

Over: W BR FRENCH CREEK

1/2 MI N OF WILSON RD, Erie, PA

Built 1930 Load: 19.1 t ADT: 156

T-409 LEACOCK ROAD

Fair

Over: LITTLE CONNEAUTTEE CREEK

400 FT EAST OF T-522, Erie, PA

Built 1986 Load: 19.1 t ADT: 81

SR 1003

Fair

Over: RUFF CREEK

MORGAN TOWNSHIP, Greene, PA

Built 1938 Load: 19.1 t ADT: 294

PA 655

Fair

Over: NORTH SPRING CREEK

0.9 MILE NORTH OF TR 994, Huntingdon, PA

Built 1935 Load: 19.1 t ADT: 936

T-616 LOOP ROAD

Fair

Over: EMMA CREEK

3 MI.S.OF ALEXANDRIA, Huntingdon, PA

Built 1963 Load: 19.1 t ADT: 410

T333 MATTHEWS BR.R

Fair

Over: AUGHWICK CREEK

4.5 MI.S.OF ROCKHILL, Huntingdon, PA

Built 1985 Load: 19.1 t ADT: 75

T-460 AULTMAN RUN

Fair

Over: AULTMAN RUN

BTW T433 & T457, Indiana, PA

Built 1914 Load: 19.1 t ADT: 30

SR 235-PA 235

Fair

Over: STONEY RUN

1 MI NE SEVEN STARS, Juniata, PA

Built 1936 Load: 19.1 t ADT: 414

SR 4059; R.Pump rd

Fair

Over: US 30; SR 0030

N. OF ROHRERSTOWN, Lancaster, PA

Built 1966 Load: 19.1 t ADT: 6,780

ST CATHERINE DRIVE

Fair

Over: STEWART RUN

1.0 MI. NE OF SR 222, Lancaster, PA

Built 1984 Load: 19.1 t ADT: 160

COVERED BRIDGE RD

Fair

Over: NESHANNOCK CREEK

037021 BANKS BRIDGE, Lawrence, PA

Built 1889 Load: 19.1 t ADT: 50

PA 72; EBENEZER RD

Fair

Over: I-78; SR 0078

UNION TOWNSHIP, Lebanon, PA

Built 1969 Load: 19.1 t ADT: 6,692

ORCHARD ROAD

Fair

Over: SWABIA CREEK

WEST OF MACUNGIE, Lehigh, PA

Built 1978 Load: 19.1 t ADT: 20

I - 180 WB

Fair

Over: SR8034/2039/LOYALSOCK CK

BOROUGH OF MONTOURSVILLE, Lycoming, PA

Built 1976 Load: 19.1 t ADT: 15,035

S.R. 0220 SB

Fair

Over: OVER LYCOMING CREEK

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 Load: 19.1 t ADT: 9,930

SR 287

Fair

Over: LARRYS CREEK

BORO OF SALLADASBURG, Lycoming, PA

Built 1941 Load: 19.1 t ADT: 1,234

SR 3007

Fair

Over: OVER PINE RUN

1 MI S INTSECTION TR 220, Lycoming, PA

Built 1936 Load: 19.1 t ADT: 211

SR 3002(LR 45052)

Fair

Over: AQUASHICOLA CREEK

LOWER SMITH GAP ROAD, Monroe, PA

Built 1966 Load: 19.1 t ADT: 591

MONOMONOCK RD

Fair

Over: MILL CREEK

0.5 M.WEST OF SR 191, Monroe, PA

Built 1940 Load: 19.1 t ADT: 10

ST PAULS CHURCH RD

Fair

Over: MACOBY CREEK

.5 Mi NE PA-29 2805-D9, Montgomery, PA

Built 1929 Load: 19.1 t ADT: 300

PA 987 (LR 48048)

Fair

Over: L.& N.E. R.R.(ABOLISHED)

AIRPORT ROAD, Northampton, PA

Built 1970 Load: 19.1 t ADT: 11,551

US 22EB; SR 0022

Fair

Over: PA 17; SR 0017

MILLERSTOWN BORO, Perry, PA

Built 1966 Load: 19.1 t ADT: 9,036

US22/322; SR0022WB

Fair

Over: PA 17; SR 0017

MILLERSTOWN BORO, Perry, PA

Built 1966 Load: 19.1 t ADT: 9,602

BLOOMFIELD AVENUE

Fair

Over: LITTLE BUFFALO CREEK

NWPRT OLVR/LIT.BUFFALO CR, Perry, PA

Built 1920 Load: 19.1 t ADT: 200

I-81SB (LR 1005)

Fair

Over: SR 8017 READING/NO. RR

EXIT 138 (39) MCADOO EXIT, Schuylkill, PA

Built 1966 Load: 19.1 t ADT: 13,158

SR 2011 (LR 53074)

Fair

Over: SCHUYLKILL RIVER

BORO OF LANDINGVILLE, Schuylkill, PA

Built 1923 Load: 19.1 t ADT: 906

T-543 GRIST MILL

Fair

Over: LOWER LITTLE SWATARA CR

0.1 MI SOUTH OF SR 895, Schuylkill, PA

Built 1974 Load: 19.1 t ADT: 50

SR 4031

Fair

Over: SOUTH FORK BENS CREEK

THOMAS MILLS, Somerset, PA

Built 1962 Load: 19.1 t ADT: 893

T548 BRKHOLD BR RD

Fair

Over: BUFFALO CREEK

2 MI.NE.OF GARRETT, Somerset, PA

Built 1890 Load: 19.1 t ADT: 50

T519 WALTERSMILL R

Fair

Over: EAST BRANCH COXES CREEK

3 MI.S.OF SOMERSET, Somerset, PA

Built 1961 Load: 19.1 t ADT: 75

T582 (PENNAY HILL)

Fair

Over: LESLIE CREEK

1.2 MILES NORTH OF LENOX, Susquehanna, PA

Built 1958 Load: 19.1 t ADT: 50

T-794 (BAILEY RD.)

Fair

Over: SNAKE CREEK

.8 MI. S LAWSVILLE CENTER, Susquehanna, PA

Built 1975 Load: 19.1 t ADT: 50

T-387

Fair

Over: TRIB TO STONY FORK CREEK

0.7 MI. NW OF STONY FORK, Tioga, PA

Built 1982 Load: 19.1 t ADT: 35

T-612 LESHER ROAD

Fair

Over: PITHOLE CREEK

AT PITHOLE, Venango, PA

Built 1897 Load: 19.1 t ADT: 50

T-592 CENTER ROAD

Fair

Over: PINE RUN

RICHLAND TOWNSHIP, Venango, PA

Built 1990 Load: 19.1 t ADT: 50

SR 3001

Fair

Over: RALSTON RUN

DONEGAL TOWNSHIP, Washington, PA

Built 1933 Load: 19.1 t ADT: 212

LYLE BRIDGE TR 861

Fair

Over: RACCOON CREEK TRIB

500 WEST OF TR 202, Washington, PA

Built 1887 Load: 19.1 t ADT: 15

WRIGHT BRIDGE T802

Fair

Over: N BRANCH PIGEON CREEK

500 SOUTH OF TR 647, Washington, PA

Built 1890 Load: 19.1 t ADT: 2

PA 0196 TR 196

Fair

Over: SR 0084 I-84 EB

STERLING TWP OVER I-84 EB, Wayne, PA

Built 1969 Load: 19.1 t ADT: 1,369

SR 4014

Fair

Over: CONEWAGO CREEK

WARRINGTON DOVER TWP LINE, York, PA

Built 1961 Load: 19.1 t ADT: 1,033

Showing 601-650 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.