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

PA 271

Fair

Over: US 22

OVER US 22 MUNDYS CORNER, Cambria, PA

Built 1960 Load: 53.5 t ADT: 5,266

REDBUD STREET

Fair

Over: W.BR.SUSQUEHANNA RIVER

Redbud St N Cambria Boro, Cambria, PA

Built 1999 Load: 53.5 t ADT: 205

PA 534(LR 13018)

Fair

Over: HICKORY RUN

1.5MI.S.OF LEHIGH TANNERY, Carbon, PA

Built 1949 Load: 53.5 t ADT: 470

SR 26-PA 26

Fair

Over: BALD EAGLE CREEK

HOWARD, Centre, PA

Built 1966 Load: 53.5 t ADT: 2,413

STRODE AVENUE

Fair

Over: SUCKER RUN

.1 MI. S. RTE.372 28H6, Chester, PA

Built 1933 Load: 53.5 t ADT: 3,142

MAPLE STREET

Fair

Over: W BR BRANDYWINE CREEK

HONEYBROOK 9H9, Chester, PA

Built 1978 Load: 53.5 t ADT: 506

SR 144-PA 144

Fair

Over: KETTLE CREEK

1 MI EAST HAMMERSLEY FORK, Clinton, PA

Built 1962 Load: 53.5 t ADT: 782

I-81 NB; SR 0081

Fair

Over: NORFOLK SO.

0.25 MI.S.OF SR 2002, Cumberland, PA

Built 1963 Load: 53.5 t ADT: 27,884

PA 174; SR 0174

Fair

Over: I-81; SR 0081

1.5 MI.E. OF SHIPPENSBURG, Cumberland, PA

Built 1963 Load: 53.5 t ADT: 4,132

EDWARD STREET

Fair

Over: RATTLING CREEK

S.BORDER LYKENS/RATTLING, Dauphin, PA

Built 1981 Load: 53.5 t ADT: 200

MID-COUNTY EXWY.NB

Fair

Over: CONESTOGA RD & SPROUL RD

CONESTOGA;SPROUL 14G11, Delaware, PA

Built 1989 Load: 53.5 t ADT: 46,663

IVY MILL ROAD

Fair

Over: WEST BR CHESTER CREEK

1MI.S.OF US1 32H11, Delaware, PA

Built 1973 Load: 53.5 t ADT: 521

SR 19 WATERFORD PK

Fair

Over: OVER LEBOEUF CREEK

WATERFORD BOROUGH, Erie, PA

Built 1984 Load: 53.5 t ADT: 11,720

SR 2006 DEPOT ROAD

Fair

Over: OVER LEBOEUF CREEK

WATERFORD TOWNSHIP, Erie, PA

Built 1959 Load: 53.5 t ADT: 2,227

SR 2019 Elgin Road

Fair

Over: OVER FRENCH CREEK S BR

CONCORD TOWNSHIP, Erie, PA

Built 1965 Load: 53.5 t ADT: 369

SR 3014 OLD ST.RD.

Fair

Over: OVER SR 79 NB/SB

FRANKLIN TOWNSHIP, Erie, PA

Built 1969 Load: 53.5 t ADT: 672

T-980 LAKE VIEW DR

Fair

Over: SHENANGO CREEK

500 FT NORTH OF T-989, Erie, PA

Built 1993 Load: 53.5 t ADT: 64

SR 0021

Fair

Over: BROWNS RUN & ABND R/R

GERMAN TOWNSHIP, Fayette, PA

Built 1952 Load: 53.5 t ADT: 13,201

SR 3027

Fair

Over: GEORGE CREEK

FAIRCHANCE BOROUGH, Fayette, PA

Built 1905 Load: 53.5 t ADT: 3,711

SR 666 D ZEIS HWY

Fair

Over: OVER LOWER SHERIFF RUN

HOWE TOWNSHIP, Forest, PA

Built 1917 Load: 53.5 t ADT: 139

SR 0021

Fair

Over: MUDDY CREEK

CUMBERLAND TOWNSHIP, Greene, PA

Built 1930 Load: 53.5 t ADT: 8,878

SR0119 SB

Fair

Over: SR0422 EB&WB

SR0119 SB, Indiana, PA

Built 1969 Load: 53.5 t ADT: 3,837

SR 0107 TR 107

Fair

Over: RUSHBROOK CREEK

MAYFIELD BORO 150 W TR 6, Lackawanna, PA

Built 1988 Load: 53.5 t ADT: 5,627

PA 896; SR 0896

Fair

Over: Mill Creek

0.3 MI.S. OF PA 340, Lancaster, PA

Built 1966 Load: 53.5 t ADT: 6,835

SR1013 CiderMillRd

Fair

Over: CONESTOGA RIVER

1MI NOF FAIRMONT, Lancaster, PA

Built 1846 Load: 53.5 t ADT: 994

SR 2011

Fair

Over: TRIB WB OCTORARO

1 MI N OF KINGS BRIDGE, Lancaster, PA

Built 1985 Load: 53.5 t ADT: 220

T-738 HOLLOW RD

Fair

Over: W BR OCTORARO CREEK

1.7 MI S OF SR 372, Lancaster, PA

Built 1998 Load: 53.5 t ADT: 57

I-81 SB;SR 0081

Fair

Over: BULLFROG RD& TRIB.SWATAR

2 MI.E. OF EXIT #80, Lebanon, PA

Built 1967 Load: 53.5 t ADT: 25,043

SR 0309 TR 309

Fair

Over: SR 1013 UNION STREET

LUZERNE BORO OVER SR 1013, Luzerne, PA

Built 1980 Load: 53.5 t ADT: 29,899

SR 2010 HAZLE ST

Fair

Over: SPRING RUN CREEK

WB CITY 700 S SR 2005, Luzerne, PA

Built 1942 Load: 53.5 t ADT: 7,416

SR 3024

Fair

Over: BLACK CREEK

SUGARLOAF TP .4M S SR3020, Luzerne, PA

Built 1930 Load: 53.5 t ADT: 470

SR 770-PA 770

Fair

Over: E BRANCH TUNUNGWANT CR

DEGOLIA, McKean, PA

Built 1986 Load: 53.5 t ADT: 2,035

BRIDGE 2319 WALNUT

Fair

Over: OVER PINE RUN

WALNUT ST. CITY OF SHARON, Mercer, PA

Built 1966 Load: 53.5 t ADT: 7,712

SR 322-US 322

Fair

Over: KISHACOQUILLAS C/ABND RR

1 MI S REEDSVILLE, Mifflin, PA

Built 1964 Load: 53.5 t ADT: 11,457

SR 322-US 322

Fair

Over: KISHACOQUILLAS C/ABND RR

1 MI S REEDSVILLE, Mifflin, PA

Built 1964 Load: 53.5 t ADT: 11,712

T-342

Fair

Over: LITTLE KISHACOQUILLAS CR

1300FT N INTER SR 0655, Mifflin, PA

Built 1930 Load: 53.5 t ADT: 100

PA 611 (LR 168)

Fair

Over: DELAWARE-LACKAWANNA RR

VILLAGE OF TOBYHANNA, Monroe, PA

Built 1939 Load: 53.5 t ADT: 6,770

SCHWENKSVILLE ROAD

Fair

Over: PERKIOMEN CREEK

PERKIOMEN TWP. 3029F09, Montgomery, PA

Built 1967 Load: 53.5 t ADT: 4,174

EVERGREEN ROAD

Fair

Over: POTTSTOWN EXPWAY/3139-H2

LOWER POTTSGROVE 3139H02, Montgomery, PA

Built 1984 Load: 53.5 t ADT: 17,341

US 22(LR 773)

Fair

Over: SR 2012(LR 48013)25TH ST

25TH ST.INTERCHANGE, Northampton, PA

Built 1954 Load: 53.5 t ADT: 33,325

S.R. 3006

Fair

Over: OVER MAHANOY CREEK

1 MI SOUTH OF DORNSIFE, Northumberland, PA

Built 1940 Load: 53.5 t ADT: 1,013

T-684

Fair

Over: PLUM CREEK

1.5 MI NW OF SEVEN POINTS, Northumberland, PA

Built 1989 Load: 53.5 t ADT: 100

OWL HOLLOW RD.

Fair

Over: WILDCAT RUN

3 MI S OF MILLERSTOWN, Perry, PA

Built 1952 Load: 53.5 t ADT: 256

SR 3001

Fair

Over: BIRCH RUN

5 MI NE WHARTON, Potter, PA

Built 1966 Load: 53.5 t ADT: 135

SR 3002

Fair

Over: FREEMAN RUN

AUSTIN, Potter, PA

Built 1938 Load: 53.5 t ADT: 550

SR 3003

Fair

Over: BIG MOORES RUN

4 MI NE COSTELLO, Potter, PA

Built 1984 Load: 53.5 t ADT: 110

SR 2002 (LR 53080)

Fair

Over: SCHUYL. RIVER RBMNRR

PALO ALTO COAL STREET, Schuylkill, PA

Built 1984 Load: 53.5 t ADT: 3,287

W. PERRY TWP. T349

Fair

Over: W. BR. MAHANTANGO CREEK

0.5 MI SE OF RICHFIELD, Snyder, PA

Built 1946 Load: 53.5 t ADT: 50

SR 1011

Fair

Over: HEMLOCK CREEK

HARMONY TWP .4M N SR 1009, Susquehanna, PA

Built 1949 Load: 53.5 t ADT: 45

SR 3023

Fair

Over: MESHOPPEN CREEK

DIMOCK TWP 50 N SR 2015, Susquehanna, PA

Built 1961 Load: 53.5 t ADT: 361

Showing 11,001-11,050 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.