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

WALP ROAD

Good

Over: NESCOPECK CREEK

30 FR. INTERS. W/T-435, Luzerne, PA

Built 2021 Load: 38.9 t ADT: 150

ROSENBERGER ROAD

Good

Over: MOLASSES CREEK

1 MI S. TPK. EXT32 2806D3, Bucks, PA

Built 2022 Load: 38.9 t ADT: 500

Wilson Switch Road

Good

Over: Medix Run

Goshen Twp, Clearfield, PA

Built 2022 Load: 38.9 t ADT: 25

PA 125

Good

Over: SWATARA CREEK

1 MI. S. OF TREMONT, Schuylkill, PA

Built 2022 Load: 38.9 t ADT: 3,506

T-567

Good

Over: TRIB. E. BRANCH CREEK

NEAR INT. W/ ALPINE DR., Northampton, PA

Built 2022 Load: 38.9 t ADT: 300

SR 0021

Good

Over: SR 0166

GERMAN TOWNSHIP, Fayette, PA

Built 2023 Load: 38.9 t ADT: 11,501

ELKLAND TWP T-424

Good

Over: ELK CREEK

3 MI W OF ESTELLA, Sullivan, PA

Built 2022 Load: 38.9 t ADT: 25

SR 1021

Good

Over: CONEWAGO CREEK

1 MI E OF NEW CHESTER, Adams, PA

Built 1987 Load: 39.0 t ADT: 436

OLD MILL ROAD

Good

Over: WILLOUGHBY RUN

1 W GBURG/WILLOUGHBY RUN, Adams, PA

Built 1967 Load: 39.0 t ADT: 600

BENNETT RUN RD

Good

Over: BENNETT RUN

300E.OF TWP.RD.541, Beaver, PA

Built 1940 Load: 39.0 t ADT: 3,820

TWENTYFIFTH ST

Good

Over: WALNUT BOTTOM RUN

301002 25TH ST BRIDGE, Beaver, PA

Built 1978 Load: 39.0 t ADT: 200

PA 96

Good

Over: TR.BOBS CREEK

WEYANT, Bedford, PA

Built 1998 Load: 39.0 t ADT: 1,227

SR 2008

Good

Over: W.BR.SIDELING HILL CREEK

1.5 MI.NW. ROBINSONVILLE, Bedford, PA

Built 1962 Load: 39.0 t ADT: 128

SR 4010 (17TH ST)

Good

Over: BRUSH RUN

ALTOONA @ 17TH ST., Blair, PA

Built 1985 Load: 39.0 t ADT: 25,718

T-363 (BR#19)

Good

Over: TOWANDA CREEK

.12 MI. N. OF INT. SR3008, Bradford, PA

Built 1978 Load: 39.0 t ADT: 50

PENN VALLEY ROAD

Good

Over: MARTINS CREEK

AT LR 778 38H11, Bucks, PA

Built 1978 Load: 39.0 t ADT: 5,663

SR 1021

Good

Over: CLEARFIELD CREEK

.25 MI.W.OF FLINTON, Cambria, PA

Built 1959 Load: 39.0 t ADT: 2,041

SR 3037

Good

Over: NORFOLK S C&BL RR

JOHNSTOWN, Cambria, PA

Built 1987 Load: 39.0 t ADT: 5,166

SR 4017

Good

Over: R. J. CORMAN RAILROAD

PATTON MCINTYRE AVE., Cambria, PA

Built 2001 Load: 39.0 t ADT: 483

T-491 ADAMS CRSG R

Good

Over: N.BR.BLACKLICK CREEK

1.2 MI.NW.OF BELSANO, Cambria, PA

Built 2008 Load: 39.0 t ADT: 50

ON TSR 966

Good

Over: HALF MOON CREEK

CENTENNIAL, Centre, PA

Built 1977 Load: 39.0 t ADT: 1,007

SR 4015

Good

Over: SANDY LICK CREEK

1 MI W SABULA, Clearfield, PA

Built 1985 Load: 39.0 t ADT: 268

SR 120-PA 120

Good

Over: NIT AND BALD EAGLE

CITY OF LOCK HAVEN, Clinton, PA

Built 1980 Load: 39.0 t ADT: 3,229

SR 1025

Good

Over: OVER BRIAR CREEK

0.25 MI N OF BERWICK, Columbia, PA

Built 1987 Load: 39.0 t ADT: 2,304

SR 1035

Good

Over: RAVEN CREEK

STILLWATER BORO, Columbia, PA

Built 1968 Load: 39.0 t ADT: 118

SR 79 SB

Good

Over: OVER T-841 CENTER ROAD

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1969 Load: 39.0 t ADT: 7,030

SR 198 FOSTER ROAD

Good

Over: OVER CONNEAUT CREEK TRIB

SUMMERHILL TOWNSHIP, Crawford, PA

Built 1907 Load: 39.0 t ADT: 978

SR 4018 RUNDELLTWN

Good

Over: OVER RUNDELLTOWN CK.TRIB

SPRING TOWNSHIP, Crawford, PA

Built 1991 Load: 39.0 t ADT: 336

MID-COUNTY EXWY.NB

Good

Over: MEADOWBROOK RUN

HAVERFORD TWP. 25J03, Delaware, PA

Built 1967 Load: 39.0 t ADT: 46,663

SHAFFER DRAFT ROAD

Good

Over: WEST BRANCH HICKS RUN

AT WEST BR HICKS RUN ROAD, Elk, PA

Built 1997 Load: 39.0 t ADT: 2

T-729 CLARK ROAD

Good

Over: SIX MILE CREEK

1500 FT SE OF SR 0020, Erie, PA

Built 1989 Load: 39.0 t ADT: 1,011

SR 1105 DOUGAN RD

Good

Over: OVER SR 86 EB/WB SO TIER

GREENFIELD TOWNSHIP, Erie, PA

Built 1985 Load: 39.0 t ADT: 104

SR 2007 MUZETTE RD

Good

Over: OVER COON CREEK

GREEN TOWNSHIP, Forest, PA

Built 1923 Load: 39.0 t ADT: 44

T-456 ETTER ROAD

Good

Over: E BR CONOCOCHEAGUE CR

0.3 MI N OF 3012, Franklin, PA

Built 1904 Load: 39.0 t ADT: 100

SR 1010

Good

Over: S BR LITTLE AUGHWICK CRK

BURNT CABINS, Fulton, PA

Built 1941 Load: 39.0 t ADT: 419

WB PA TPK SP RAMP

Good

Over: PA TPK (I-76)

WEST OF HUSTONTOWN, Fulton, PA

Built 1997 Load: 39.0 t ADT: 2,000

SR 3006

Good

Over: GARRISON FORK

GILMORE TOWNSHIP, Greene, PA

Built 1961 Load: 39.0 t ADT: 67

T525 SLATE HILL RD

Good

Over: STANDING STONE CREEK

3 MI.NE.OF MCALEVYS FORT, Huntingdon, PA

Built 1997 Load: 39.0 t ADT: 51

S. WASHINGTON AVE.

Good

Over: STAFFORD MEADOW BROOK

500 FT N OF CHERRY ST, Lackawanna, PA

Built 1966 Load: 39.0 t ADT: 11,000

LR 1124 INCOMPLETE

Good

Over: NORFOLK SOUTHERN RR

0.25 MI West of SR 1003, Lancaster, PA

Built 1975 Load: 39.0 t

1124 WB(Dirt Road)

Good

Over: Norfolk Southern RR

0.25 MI West of SR 1003, Lancaster, PA

Built 1975 Load: 39.0 t

T324 HILLSVILLE RD

Good

Over: COFFEE RUN

1.25 MI S/SR 4006, Lawrence, PA

Built 1990 Load: 39.0 t ADT: 150

SR 4016

Good

Over: PINE CREEK

VILLAGE OF SLATE RUN, Lycoming, PA

Built 1987 Load: 39.0 t ADT: 138

SR 18 COLLEGE AVE.

Good

Over: OVER LITTLE SHENANGO R

GREENVILLE BOROUGH, Mercer, PA

Built 1986 Load: 39.0 t ADT: 5,803

SR 58 WILSON AVE.

Good

Over: OVER NESHANNOCK CREEK

MERCER BOROUGH, Mercer, PA

Built 1986 Load: 39.0 t ADT: 4,309

ON TSR 328

Good

Over: BEAVER DAM RUN

2 MI N NEWTON HAMILTON, Mifflin, PA

Built 1996 Load: 39.0 t ADT: 642

T-468 KISHACOQ. ST

Good

Over: KISHACOQUILLAS CREEK

1000FT N OF T-437, Mifflin, PA

Built 1973 Load: 39.0 t ADT: 200

HAVICE VALLEY ROAD

Good

Over: PANTHER RUN

2000 S OF POE VALLEY RD, Mifflin, PA

Built 1997 Load: 39.0 t ADT: 35

WALNUT STREET

Good

Over: SEPTA

JENKINTOWN 3370J04, Montgomery, PA

Built 1997 Load: 39.0 t ADT: 8,405

PLANK ROAD

Good

Over: PERKIOMEN CREEK

SOUTH PENNA- 73 3141-H02, Montgomery, PA

Built 1990 Load: 39.0 t ADT: 9,643

Showing 15,851-15,900 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.