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 144-PA 144

Fair

Over: KETTLE CREEK

OLEONA, Potter, PA

Built 1960 Load: 35.4 t ADT: 199

SR 872-PA 872

Fair

Over: FIRST FORK SINNEMAHONING

WHARTON, Potter, PA

Built 1971 Load: 35.4 t ADT: 672

SR 4005

Fair

Over: SOUTH BRANCH OSWAYO CR

ONE HALF MI S CONEVILLE, Potter, PA

Built 1968 Load: 35.4 t ADT: 192

I-81 NB

Fair

Over: RAUSCH CREEK

0.50 MI.N.OF EXIT 104(32), Schuylkill, PA

Built 1969 Load: 35.4 t ADT: 11,804

MILL CREEK AVE.

Fair

Over: MILL CREEK

0.7 MI.EAST OF POTTSVILLE, Schuylkill, PA

Built 1991 Load: 35.4 t ADT: 5,110

RIDGE ROAD

Fair

Over: LITTLE CATAWISSA CREEK

0.8 MI.NW OF RINGTOWN, Schuylkill, PA

Built 1990 Load: 35.4 t ADT: 250

SR 2012

Fair

Over: SILVER CREEK

2 MI SW OF PORT TREVERTON, Snyder, PA

Built 1951 Load: 35.4 t ADT: 163

WINDBER 17TH ST.

Fair

Over: PA 56 & SEESE RUN

WINDBER BORO., Somerset, PA

Built 1959 Load: 35.4 t ADT: 442

SR 2047

Fair

Over: TRIB MILLER RUN

1.5 MI.N.OF BERLIN, Somerset, PA

Built 1951 Load: 35.4 t ADT: 3,897

US 219 SBL

Fair

Over: SR 4035

OVER SR 4035, Somerset, PA

Built 1969 Load: 35.4 t ADT: 6,193

PA 601

Fair

Over: STONY CREEK RIVER

1 MI.E.OF BENSON, Somerset, PA

Built 1984 Load: 35.4 t ADT: 621

SR 1018

Fair

Over: DARK SHADE CREEK

.25 MI.E.OF CENTRAL CITY, Somerset, PA

Built 1962 Load: 35.4 t ADT: 427

SR 2013

Fair

Over: GLADDENS RUN

GLADDENS, Somerset, PA

Built 1942 Load: 35.4 t ADT: 263

SR 2019

Fair

Over: WILLS CREEK

2 MI.SE.OF FAIRHOPE, Somerset, PA

Built 1985 Load: 35.4 t ADT: 136

T407 PACK SADDLE R

Fair

Over: BRUSH CREEK

3 MI.NW.OF FAIRHOPE, Somerset, PA

Built 1998 Load: 35.4 t ADT: 50

SR 154

Fair

Over: OVER MILL CREEK

2.5 MI W OF LAPORTE, Sullivan, PA

Built 1935 Load: 35.4 t ADT: 298

SR 2002

Fair

Over: OVER MUNCY CREEK

1.6 MI E SONESTOWN, Sullivan, PA

Built 1939 Load: 35.4 t ADT: 70

SR 0029 TR 29

Fair

Over: SNAKE CREEK

FRANKLIN TWP .3M S SR1018, Susquehanna, PA

Built 1933 Load: 35.4 t ADT: 2,460

SR 0092 TR 92

Fair

Over: MILLARD CREEK

LENOX TWP 50 S SR 2039, Susquehanna, PA

Built 1959 Load: 35.4 t ADT: 2,139

SR 15 SOUTH BOUND

Fair

Over: OVER SR 414

1 MI W OF LIBERTY, Tioga, PA

Built 1973 Load: 35.4 t ADT: 6,123

SR 49

Fair

Over: NORTH FORK CREEK

.75 MI. N OF WELLSBORO, Tioga, PA

Built 1948 Load: 35.4 t ADT: 3,953

SR 249

Fair

Over: OVER COWANESQUE RIVER

E.OF WESTFIELD-COWANESQUE, Tioga, PA

Built 1936 Load: 35.4 t ADT: 1,104

SR 287

Fair

Over: OVER BR BALDWIN RUN

3.5 MI N OF WELLSBORO, Tioga, PA

Built 1948 Load: 35.4 t ADT: 4,387

SR 0414

Fair

Over: BLOCKHOUSE CREEK

BOROUGH OF LIBERTY, Tioga, PA

Built 1957 Load: 35.4 t ADT: 268

SR 2017

Fair

Over: TAYLOR RUN

1 MI SE OF BLOSSBURG, Tioga, PA

Built 1954 Load: 35.4 t ADT: 1,184

SR 2022

Fair

Over: OVER TRIB. TO COREY CRK

2.5 MI SE OF MAINESBURG, Tioga, PA

Built 1949 Load: 35.4 t ADT: 229

SR 4005

Fair

Over: NORTH FORK CREEK

2 MI N OF POTTER BROOK, Tioga, PA

Built 1967 Load: 35.4 t ADT: 434

SR 0015 SBL

Fair

Over: OVER TURTLE CREEK

1.5 MI N OF WINFIELD, Union, PA

Built 1930 Load: 35.4 t ADT: 7,868

SR 15 SBL

Fair

Over: OVER SR 1008

VILLAGE OF NEW COLUMBIA, Union, PA

Built 1964 Load: 35.4 t ADT: 7,229

I-80 WB

Fair

Over: OVER SR 4001

7 MI W OF WHITE DEER, Union, PA

Built 1970 Load: 35.4 t ADT: 10,065

SR 1002

Fair

Over: OVER SPRUCE RUN

1 MI E OF MAZEPPA, Union, PA

Built 1948 Load: 35.4 t ADT: 2,562

SR 666

Fair

Over: OVER TIONESTA CREEK S BR

SHEFFIELD TOWNSHIP, Warren, PA

Built 1957 Load: 35.4 t ADT: 568

SR 2001 CHERRY GRV

Fair

Over: OVER TIONESTA CREEK

MEAD TOWNSHIP, Warren, PA

Built 1961 Load: 35.4 t ADT: 332

SR 4001 PICADILLY

Fair

Over: OVER WHITNEY RUN

SPRING CREEK TOWNSHIP, Warren, PA

Built 1960 Load: 35.4 t ADT: 504

SR 0070

Fair

Over: SR 3024

DONEGAL TOWNSHIP, Washington, PA

Built 1960 Load: 35.4 t ADT: 14,819

SR 1010

Fair

Over: CHARTIERS CREEK

CECIL & PETERS TOWNSHIPS, Washington, PA

Built 1986 Load: 35.4 t ADT: 6,733

SR 2021

Fair

Over: BRANCH OF PIGEON CREEK

SOMERSET TOWNSHIP, Washington, PA

Built 1949 Load: 35.4 t ADT: 116

SR 2047

Fair

Over: LITTLE TENMILE CREEK

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1970 Load: 35.4 t ADT: 77

SR 3022

Fair

Over: TENMILE CREEK

MORRIS TOWNSHIP, Washington, PA

Built 1960 Load: 35.4 t ADT: 186

SR 0030

Fair

Over: Mt Pleasant Rd (County)

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1959 Load: 35.4 t ADT: 47,172

SR 2010

Fair

Over: SEWICKLEY CREEK

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1961 Load: 35.4 t ADT: 2,444

SR 3011

Fair

Over: Wheeling & Lake Erie R/R

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1958 Load: 35.4 t ADT: 3,992

PA TPK (I-76)

Fair

Over: LYONS RUN;WB-502

WEST OF PLEASANT VALLEY, Westmoreland, PA

Built 1952 Load: 35.4 t ADT: 46,261

PA TPK (I-76)

Fair

Over: BYERS RUN

WEST OF PLEASANT VALLEY, Westmoreland, PA

Built 1952 Load: 35.4 t ADT: 46,261

T689 Sunny Drive

Fair

Over: BELSON RUN

750 SOUTH OF SR 3093, Westmoreland, PA

Built 1985 Load: 35.4 t ADT: 1,100

CHURCH STREET

Fair

Over: BEAVER RUN

0.7 MI WEST OF SR 1061, Westmoreland, PA

Built 1920 Load: 35.4 t ADT: 150

I-83; SR 0083

Fair

Over: T441; RR; Tolna Rd

1 MI.S.E. OF SHREWSBURY, York, PA

Built 1958 Load: 35.4 t ADT: 36,281

I-83; SR 0083

Fair

Over: 2068 (Hess Farm Rd )

2.2 MI.N.E. OF LOGANVILLE, York, PA

Built 1958 Load: 35.4 t ADT: 40,308

I-83; SR 0083

Fair

Over: LITTLE CONEWAGO CREEK

1.5 MI S EXIT-28; I-83, York, PA

Built 1957 Load: 35.4 t ADT: 43,104

PA 181; SR 0181

Fair

Over: CONEWAGO CREEK

1.25 MI.N. OF MANCHESTER, York, PA

Built 1984 Load: 35.4 t ADT: 2,036

Showing 6,301-6,350 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.