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

SR 220-US 220

Fair

Over: T-373

1 MILE EAST MILL HALL, Clinton, PA

Built 1976 Load: 28.1 t ADT: 8,409

SR 11 NB

Fair

Over: OVER FISHING CREEK

0.5 MI W OF BLOOMSBURG, Columbia, PA

Built 1970 Load: 28.1 t ADT: 6,223

SR 1025

Fair

Over: TRIB.TO BRIAR CREEK

0.5 MI N OF BERWICK, Columbia, PA

Built 1941 Load: 28.1 t ADT: 2,304

SR 2009

Fair

Over: TRIB.TO CATAWISSA CREEK

BOROUGH OF MAINVILLE, Columbia, PA

Built 1930 Load: 28.1 t ADT: 2,527

ANTS HILL ROAD

Fair

Over: E BR CHILLISQUAQUE CREEK

2.5 MI NW OF JERSEYTOWN, Columbia, PA

Built 1953 Load: 28.1 t ADT: 83

SR 4049

Fair

Over: OVER FISHING CREEK

4 MI N OF BENTON, Columbia, PA

Built 1934 Load: 28.1 t ADT: 443

SR 1101 MAPLE DR

Fair

Over: OVER SR 79 NB/SB

HAYFIELD TOWNSHIP, Crawford, PA

Built 1969 Load: 28.1 t ADT: 77

SR 1022 GARLAND ST

Fair

Over: OVER OIL CREEK EAST BR

CENTERVILLE BOROUGH, Crawford, PA

Built 1954 Load: 28.1 t ADT: 517

SR 3005 EAST LAKE

Fair

Over: OVER SHENANGO RIVER TRIB

SOUTH SHENANGO TOWNSHIP, Crawford, PA

Built 1934 Load: 28.1 t ADT: 878

SR 3009 LINESVILLE

Fair

Over: OVER BENNETT RUN

NORTH SHENANGO TOWNSHIP, Crawford, PA

Built 1952 Load: 28.1 t ADT: 323

SR 3011 LINESVILLE

Fair

Over: OVER PYMATUNING RES

NORTH SHENANGO TOWNSHIP, Crawford, PA

Built 1934 Load: 28.1 t ADT: 862

I-81 NB; SR 0081

Fair

Over: T-545; STONE HOUSE RD.

5.5 MI.S. CARLISLE, Cumberland, PA

Built 1963 Load: 28.1 t ADT: 20,565

I-81 NB; SR 0081

Fair

Over: CONODOGUINET CREEK

1.5 MI.N. OF US 11, Cumberland, PA

Built 1969 Load: 28.1 t ADT: 29,146

PA 641; SR 0641

Fair

Over: PEEBLES RUN

1.5 MI.EAST OF NEWBURG, Cumberland, PA

Built 1948 Load: 28.1 t ADT: 2,212

PA TPK (I-76)

Fair

Over: HOGESTOWN RUN

SILVER SPRING TWP, Cumberland, PA

Built 1949 Load: 28.1 t ADT: 21,790

LR21017 SR2011

Fair

Over: PA TPK (I-76)

1.0 MI W OF SR 2013, Cumberland, PA

Built 1950 Load: 28.1 t ADT: 4,446

WEST ORANGE STREET

Fair

Over: MIDDLE SPRING CREEK

0.1 M SW OF US 11/PA 696, Cumberland, PA

Built 1977 Load: 28.1 t ADT: 5,000

SR 3019

Fair

Over: I-81; SR 0081

1 MI. S. LINGLESTOWN, Dauphin, PA

Built 1968 Load: 28.1 t ADT: 13,485

BRYN MAWR AVENUE

Fair

Over: BRANCH DARBY CREEK

NR.SPROUL ROAD 25E04, Delaware, PA

Built 1985 Load: 28.1 t ADT: 6,908

BRYN MAWR AVENUE

Fair

Over: BRANCH DARBY CREEK

NR.SPROUL ROAD 25F03, Delaware, PA

Built 1985 Load: 28.1 t ADT: 6,908

EAST HICKS RUN RD

Fair

Over: EAST BRANCH HICKS RUN

1 MI NW BARR HOLLOW RD, Elk, PA

Built 1997 Load: 28.1 t ADT: 15

SR 20 RIDGE RD

Fair

Over: OVER WALNUT CREEK

FAIRVIEW TOWNSHIP, Erie, PA

Built 1939 Load: 28.1 t ADT: 13,456

SR 20 EB 26 TH ST

Fair

Over: OVER SR 79 NB/SB

CITY OF ERIE, Erie, PA

Built 1972 Load: 28.1 t ADT: 5,698

T-760 REMINGTON

Fair

Over: OVER SR 90 EB/WB

NORTH EAST TOWNSHIP, Erie, PA

Built 1959 Load: 28.1 t ADT: 329

SR 97 UNION CITY

Fair

Over: OVER FRENCH CREEK

LEBOEUF TOWNSHIP, Erie, PA

Built 1975 Load: 28.1 t ADT: 5,575

SR 99 MEADVILLE ST

Fair

Over: OVER CONNEAUTTEE CREEK

WASHINGTON TOWNSHIP, Erie, PA

Built 1930 Load: 28.1 t ADT: 3,455

SR 2022 TURNPIKE R

Fair

Over: OVER SPENCER RUN

WAYNE TOWNSHIP, Erie, PA

Built 1963 Load: 28.1 t ADT: 263

SR 2026 STATE LINE

Fair

Over: OVER HUBBELL RUN

AMITY TOWNSHIP, Erie, PA

Built 1962 Load: 28.1 t ADT: 364

FRANKLIN AVENUE

Fair

Over: OVER BNSF & CSX RR

200 FT.S.OF E. 12TH ST., Erie, PA

Built 1943 Load: 28.1 t ADT: 9,462

SR 0119

Fair

Over: SR 1063

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 28.1 t ADT: 12,341

SR 0201

Fair

Over: DOWNER RUN

FAYETTE CITY BOROUGH, Fayette, PA

Built 1931 Load: 28.1 t ADT: 8,349

SR 1010

Fair

Over: TOWNSHIP ROAD (TURNBACK)

DUNBAR TOWNSHIP, Fayette, PA

Built 1969 Load: 28.1 t ADT: 444

SR 1022

Fair

Over: SR 0119

NORTH UNION TOWNSHIP, Fayette, PA

Built 1971 Load: 28.1 t ADT: 866

SR 1027

Fair

Over: JACOBS CREEK

U. TYRONE & E. HUNTINGDON, Fayette, PA

Built 1988 Load: 28.1 t ADT: 5,843

SR 1051

Fair

Over: BRANCH OF BREAKNECK RUN

BULLSKIN TOWNSHIP, Fayette, PA

Built 1938 Load: 28.1 t ADT: 1,248

SR 2010

Fair

Over: DEER LAKE

WHARTON TOWNSHIP, Fayette, PA

Built 1962 Load: 28.1 t ADT: 1,381

SR 2019

Fair

Over: JONATHAN RUN

STEWART TOWNSHIP, Fayette, PA

Built 1938 Load: 28.1 t ADT: 207

T-338

Fair

Over: OVER ROSS RUN

KINGSLEY TOWNSHIP, Forest, PA

Built 1910 Load: 28.1 t ADT: 50

PA 16; Buchanan tr

Fair

Over: E.BR.LITTLE ANTIETAM CR.

WAYNESBORO, Franklin, PA

Built 1934 Load: 28.1 t ADT: 16,158

PA 16; Buchanan tr

Fair

Over: E.BR.LIT. ANTIETAM CR.

WAYEN HEIGHTS, Franklin, PA

Built 1928 Load: 28.1 t ADT: 16,158

US 30 WB; Lincoln

Fair

Over: CONOCOCHEAGUE CREEK

CHAMBERSBURG, Franklin, PA

Built 1904 Load: 28.1 t ADT: 9,755

T-452; ALLEMAN RD

Fair

Over: I-81 ; SR 0081

0.5 ML. N.OF MARION, Franklin, PA

Built 1963 Load: 28.1 t ADT: 527

PA 316; Wayne Hwy.

Fair

Over: TRIB.W.BR.LIT. ANTIETAM

1.5 ML.N.OF FIVE FORKS, Franklin, PA

Built 1931 Load: 28.1 t ADT: 8,252

SR 2007

Fair

Over: BR. LITTLE ANTIETAM CREE

0.5 MI NE OF ROADSIDE, Franklin, PA

Built 1971 Load: 28.1 t ADT: 2,708

MCFARLAND RD

Fair

Over: CONOCOCHEAGUE CREEK W.BR

2E MERCERSBURG/CONOCOCHG, Franklin, PA

Built 1964 Load: 28.1 t ADT: 75

SR 1005

Fair

Over: S.BR.L. AUGHWICK CREEK

.5 MI.SE.OF BURNT CABINS, Fulton, PA

Built 1936 Load: 28.1 t ADT: 845

SR 0079

Fair

Over: SR 0221 & RUFF CREEK

WASHINGTON TOWNSHIP, Greene, PA

Built 1966 Load: 28.1 t ADT: 9,454

SR 3016

Fair

Over: SOUTH FORK WHEELING CK.

ALEPPO TOWNSHIP, Greene, PA

Built 1960 Load: 28.1 t ADT: 100

T409 TUSCAR CRK RD

Fair

Over: TUSCARORA CREEK

3.5 MI. S.OF BLAIRS MILLS, Huntingdon, PA

Built 1936 Load: 28.1 t ADT: 66

SR0110 & RAMPS L&K

Fair

Over: McKEE RUN

DRILLERS, Indiana, PA

Built 1970 Load: 28.1 t ADT: 4,790

Showing 2,301-2,350 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.