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

16TH STREET

Poor

Over: BRUSH RUN

16TH ST @ BRUSH RUN, Blair, PA

Built 1980 Load: 20.9 t ADT: 1,135

T-651

Poor

Over: TRIB.OF N.BR.SUGAR CREEK

1.3 M W. OF COLUMBIA X-RD, Bradford, PA

Built 1977 Load: 20.9 t ADT: 50

MILL ST. (SYLVANIA

Poor

Over: SUGAR CREEK

SYLVANIA BORO COLUMBIA T, Bradford, PA

Built 1977 Load: 20.9 t ADT: 10

PINE STREET

Poor

Over: US 1

LANGHORNE 37C11, Bucks, PA

Built 1965 Load: 20.9 t ADT: 11,070

GRAVEL PIT ROAD

Poor

Over: DELAWARE CANAL

EAST OF NARROWSVILLE, Bucks, PA

Built 1832 Load: 20.9 t ADT: 6

SR1010

Poor

Over: GLADE RUN

NEAR HALLSTON, Butler, PA

Built 1955 Load: 20.9 t ADT: 818

T-372 TAGGART RD

Poor

Over: SLIPPERY ROCK CREEK

1.3 MI SE OF SR 0108, Butler, PA

Built 1980 Load: 20.9 t ADT: 150

T471 BRIAR CR.BR#3

Poor

Over: E. BR. BRIAR CREEK

1.1 MI. NWW OF BERWICK, Columbia, PA

Built 1956 Load: 20.9 t ADT: 1,001

MANCHESTER AVENUE

Poor

Over: SEPTA

.7MI.S.BALT. PK. 34C07, Delaware, PA

Built 1895 Load: 20.9 t ADT: 4,576

THOMPSON ROAD

Poor

Over: DUNLAP CREEK

BETWEEN REPUB & MERRITTS, Fayette, PA

Built 1964 Load: 20.9 t ADT: 900

T379 SIPES MILL RD

Poor

Over: LITTLE TONOLOWAY CREEK

.2 MI.N.OF SIPES MILLS, Fulton, PA

Built 1933 Load: 20.9 t ADT: 223

SR 3011

Poor

Over: HARGUS CREEK

CENTER TOWNSHIP, Greene, PA

Built 1939 Load: 20.9 t ADT: 396

T-472 HUMPBACK RD

Poor

Over: NORTH FORK CREEK

0.5 MILE SOUTH OF SR 4005, Jefferson, PA

Built 1935 Load: 20.9 t ADT: 50

SR 850-PA 850

Poor

Over: LAUREL RUN

1 MI N HONEY GROVE, Juniata, PA

Built 1957 Load: 20.9 t ADT: 211

T-424 LOST CRK. RD

Poor

Over: LOST CREEK

1 MI. NE OF OAKLAND MILLS, Juniata, PA

Built 1950 Load: 20.9 t ADT: 100

GRACELAND RD

Poor

Over: NESHANNOCK WEST BRANCH

205001 NORTH/NEW CASTLE, Lawrence, PA

Built 1940 Load: 20.9 t ADT: 150

FURNACE RD

Poor

Over: TROUT CREEK

SOUTH OF LEHIGH FURNACE, Lehigh, PA

Built 1978 Load: 20.9 t ADT: 100

SR 0115 TR 115 NB

Poor

Over: SR 0081 I-81 NB & SB

PLAINS TWP OVER I-81NB&SB, Luzerne, PA

Built 1963 Load: 20.9 t ADT: 12,989

TRIPP ROAD

Poor

Over: MAPLE RUN

900 FT NORTH OF SR 4013, Luzerne, PA

Built 1977 Load: 20.9 t ADT: 50

SR 2017 N.FOSTER R

Poor

Over: OVER COOL SPRING CREEK

FAIRVIEW TOWNSHIP, Mercer, PA

Built 1952 Load: 20.9 t ADT: 507

BRIDGE 199 T-301

Poor

Over: OVER SUGAR RUN

W COUNTY LINE GREENE TWP, Mercer, PA

Built 1972 Load: 20.9 t ADT: 160

SR 3018(LR 45099)

Poor

Over: MCMICHAEL CREEK

200 FT. WEST OF PA 715, Monroe, PA

Built 1925 Load: 20.9 t ADT: 998

T-408 FETHERMAN RD

Poor

Over: CHERRY CREEK

BOSSARDSVILLE, Monroe, PA

Built 1920 Load: 20.9 t ADT: 68

SR 2010

Poor

Over: OVER SHAMOKIN CREEK

1 MI W OF ELYSBURG, Northumberland, PA

Built 1937 Load: 20.9 t ADT: 285

T-684 ROCKEFELLER

Poor

Over: TRIB.TO PLUM CREEK

0.9 MI NE SEVEN POINTS, Northumberland, PA

Built 1920 Load: 20.9 t ADT: 75

PA 74; SR 0074

Poor

Over: BAKEN CREEK

NEAR ALINDA, Perry, PA

Built 1959 Load: 20.9 t ADT: 1,835

PA 895

Poor

Over: LITTLE SWATARA CREEK

VILLAGE OF ROCK, Schuylkill, PA

Built 1937 Load: 20.9 t ADT: 913

CARROLL ST

Poor

Over: MILL CREEK

IN ST.CLAIR ON CARROLL ST, Schuylkill, PA

Built 1973 Load: 20.9 t ADT: 400

T850 SHAFFER RUN R

Poor

Over: SHAFFERS RUN

1.9 MILE N OF FAIRHOPE, Somerset, PA

Built 1937 Load: 20.9 t ADT: 11

SR 3023

Poor

Over: HORTONS CREEK

LATHROP TWP JCT SR 2007, Susquehanna, PA

Built 1961 Load: 20.9 t ADT: 742

SR 666 D.ZEIS HWY.

Poor

Over: OVER TIONESTA CREEK

SHEFFIELD TOWNSHIP, Warren, PA

Built 1957 Load: 20.9 t ADT: 568

SR 1023

Poor

Over: EQUINUNK CREEK

MANCHESTER TP 895E TR191, Wayne, PA

Built 1944 Load: 20.9 t ADT: 292

KINNEYVILLE ROAD

Poor

Over: KINNEYVILLE CREEK

0.7 MI WEST OF SR 4007, Wayne, PA

Built 1957 Load: 20.9 t ADT: 30

TOWNSHIP ROAD 880

Poor

Over: FOUR MILE RUN

100 SOUTHEAST OF T413, Westmoreland, PA

Built 1950 Load: 20.9 t ADT: 150

T-571 SHINSKY RD

Poor

Over: N BR OF SEWICKLEY CREEK

200 EAST OF SR 2017, Westmoreland, PA

Built 1989 Load: 20.9 t ADT: 50

T-898 MONASTERY D

Poor

Over: MONASTERY RUN

3/4 MILE FROM SR 1024, Westmoreland, PA

Built 1978 Load: 20.9 t ADT: 6,317

SR 3002

Poor

Over: BOWMANS CREEK

NOXEN TWP .2 M W TR 29, Wyoming, PA

Built 1933 Load: 20.9 t ADT: 210

49TH STREET

Poor

Over: AMTRAK(NY-WASH BRANCH)

49TH S.WOODLAND 3589 G10, Philadelphia, PA

Built 1923 Load: 20.9 t ADT: 8,691

WALNUT LANE

Poor

Over: SEPTA;CHESTNUTHILL W.BR.

SOUTH WAYNE AVE. 3480A05, Philadelphia, PA

Built 1900 Load: 20.9 t ADT: 8,308

"G" Street

Poor

Over: AMTRAK (NE Corridor)

N of Venango St 29D03, Philadelphia, PA

Built 1914 Load: 20.9 t ADT: 6,000

POOL ROAD

Poor

Over: HICKORY RUN

HICKORY RUN STATE PARK, Carbon, PA

Built 1970 Load: 20.9 t ADT: 10

MILL RD

Poor

Over: CONESTOGA RIVER

EAST OF BRENDLE RD, Lancaster, PA

Built 1901 Load: 20.9 t ADT: 100

SALEM CHURCH ROAD

Poor

Over: TRIB.OF SWIFT RUN

1 S.GULDENS TR.SWIFT RUN, Adams, PA

Built 1920 Load: 21.8 t ADT: 50

SR 0910 EB WB

Poor

Over: DEER CREEK

1/2 MI WEST SR 1022, Allegheny, PA

Built 1957 Load: 21.8 t ADT: 4,445

WEST CARSON ST

Poor

Over: CHARTIERS CREEK

021 W Carson St Bridge, Allegheny, PA

Built 1925 Load: 21.8 t ADT: 3,756

N AVE&BRIGHTON RD

Poor

Over: N-S RR-ALLEGHENY PARK

067 W North Ave & Bright, Allegheny, PA

Built 1905 Load: 21.8 t ADT: 21,000

ABERS CREEK RD

Poor

Over: ABERS CREEK

AB03 ABERS CREEK NO. 3, Allegheny, PA

Built 1893 Load: 21.8 t ADT: 850

HIGH BOULEVARD

Poor

Over: ANGELICA CREEK

KENHORST/GRILL, Berks, PA

Built 1969 Load: 21.8 t ADT: 2,306

AIRPORT RD

Poor

Over: LITTLE SWATARA CREEK

SHIKELLAMY BRIDGE, Berks, PA

Built 1966 Load: 21.8 t ADT: 447

T551 PLUMMER HOLLO

Poor

Over: LITTLE JUNIATA RIVER

.3 MI.SE.OF TYRONE, Blair, PA

Built 1937 Load: 21.8 t ADT: 17

Showing 21,401-21,450 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.