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 0022

Fair

Over: HAYMAKERS RUN

MUNICIPAL OF MURRYSVILLE, Westmoreland, PA

Built 1943 Load: 32.7 t ADT: 35,857

SR 0030

Fair

Over: MILL CREEK

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1970 Load: 32.7 t ADT: 5,043

SR 0031

Fair

Over: INDIAN CREEK

DONEGAL TOWNSHIP, Westmoreland, PA

Built 1941 Load: 32.7 t ADT: 4,094

SR 0070

Fair

Over: CEDAR CREEK

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1954 Load: 32.7 t ADT: 29,589

SR 0130

Fair

Over: FOUR MILE RUN

COOK & DONEGAL TOWNSHIP, Westmoreland, PA

Built 1952 Load: 32.7 t ADT: 718

SR 0981

Fair

Over: SHERRICK RUN

EAST HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1963 Load: 32.7 t ADT: 1,791

SR 1027

Fair

Over: STONY RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1992 Load: 32.7 t ADT: 79

SR 3091

Fair

Over: BRANCH OF SEWICKLEY CK.

NEW STANTON BOROUGH, Westmoreland, PA

Built 1951 Load: 32.7 t ADT: 27,920

SR 3093

Fair

Over: SR 0119

0.5 MI SOUTH OF SR 3042, Westmoreland, PA

Built 1977 Load: 32.7 t ADT: 2,762

PA TPK (PA 66)

Fair

Over: Br of Sewickley Creek

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 32.7 t ADT: 500

PA TPK (PA 66)

Fair

Over: Br. Sewickley Creek

HEMPFIELD TWP, Westmoreland, PA

Built 1991 Load: 32.7 t ADT: 15,194

PA TPK (I-76)

Fair

Over: SR 0993 BRUSH CK. & RR

WESTMORELAND CITY, Westmoreland, PA

Built 1952 Load: 32.7 t ADT: 44,987

PA TPK (I-76)

Fair

Over: BRUSH CREEK

EAST OF CARPENTERTOWN, Westmoreland, PA

Built 1939 Load: 32.7 t ADT: 34,232

T-654 OASIS ROAD

Fair

Over: LOYALHANNA CREEK

AT POLICE ROAD INTERSECT., Westmoreland, PA

Built 1967 Load: 32.7 t ADT: 825

SARDIS ROAD

Fair

Over: HAYMAKER RUN

1.2 MILES NORTH OF SR 22, Westmoreland, PA

Built 1973 Load: 32.7 t ADT: 4,555

SR 8014

Fair

Over: SPEERS RUN

NORTH BELLE VERNON BORO., Westmoreland, PA

Built 1949 Load: 32.7 t ADT: 3,934

SR 0087 TR 87

Fair

Over: TRIB SUSQUEHANNA RIVER

WASHINGTON TP 1.9M W TR 6, Wyoming, PA

Built 1931 Load: 32.7 t ADT: 2,851

SR 0107 TR 107

Fair

Over: TRIB TUNKHANNOCK CREEK

NICHOLSON TP .5M S SR1014, Wyoming, PA

Built 1932 Load: 32.7 t ADT: 1,699

SR 0292 TR 292

Fair

Over: MARSH CREEK

N MORELAND .6M NW SR 2002, Wyoming, PA

Built 1955 Load: 32.7 t ADT: 625

SR 1009

Fair

Over: OXBOW CREEK

LEMON TWP 2 M N TR 92, Wyoming, PA

Built 1948 Load: 32.7 t ADT: 397

SR 3001

Fair

Over: BR MEHOOPANY CREEK

FORKSTON TWP .5M N SR4005, Wyoming, PA

Built 1949 Load: 32.7 t ADT: 86

SR 3003

Fair

Over: SUGAR HOLLOW CREEK

EATON TWP .6 M W TR 29, Wyoming, PA

Built 1928 Load: 32.7 t ADT: 898

SR 4002

Fair

Over: LITTLE MEHOOPANY CREEK

MEHOOPANY TWP .1M W TR 87, Wyoming, PA

Built 1969 Load: 32.7 t ADT: 795

PA 24; SR 0024

Fair

Over: NORFOLK SO.

0.2 MI S OF US 30 E.YORK, York, PA

Built 1971 Load: 32.7 t ADT: 31,127

US 30; SR 0030

Fair

Over: GREENWOOD RD; T-825

1.8 MI NORTH OF LR126, York, PA

Built 1969 Load: 32.7 t ADT: 17,653

I-83; SR 0083

Fair

Over: Norfolk Southern RR

0.3 MI N OF EXIT-19 I-83, York, PA

Built 1959 Load: 32.7 t ADT: 51,452

PA 177; SR 0177

Fair

Over: STONEY RUN

NEWBERRY TOWNSHIP, York, PA

Built 1968 Load: 32.7 t ADT: 4,502

PA 194; SR 0194

Fair

Over: PLUM CREEK

.5 MI. S. PENNVILLE, York, PA

Built 1956 Load: 32.7 t ADT: 7,943

PA 216; SR 0216

Fair

Over: SEAKS RUN

4 MILE W OF WINTERSTOWN, York, PA

Built 1948 Load: 32.7 t ADT: 791

PA 624; s.front st

Fair

Over: KREUTZ CREEK

SOUTH WRIGHTSVILLE, York, PA

Built 1941 Load: 32.7 t ADT: 2,577

PA 851; SR 0851

Fair

Over: SCOTT CREEK

.5 MI.E. OF BRYANSVILLE, York, PA

Built 1950 Load: 32.7 t ADT: 1,317

PA 921; SR 0921

Fair

Over: Trib Little Conewago Ck

PA-921 und. I-83 overpass, York, PA

Built 1956 Load: 32.7 t ADT: 7,454

PA 921; Maple St.

Fair

Over: Hartman Run

MT WOLF BORO W OF RR, York, PA

Built 1957 Load: 32.7 t ADT: 6,761

SR 1014

Fair

Over: KREUTZ CREEK

N.OF U.S. 30, York, PA

Built 1970 Load: 32.7 t ADT: 918

SR 1014

Fair

Over: KREUTZ CREEK

1.2 MI.W. OF HALLAM, York, PA

Built 1970 Load: 32.7 t ADT: 10,539

SR 1019

Fair

Over: HARTMAN RUN

1 MILE NE OF MOUNT WOLF, York, PA

Built 1917 Load: 32.7 t ADT: 1,185

SR 2005

Fair

Over: TRIB OF MILL CREEK

.4 MI SOUTH OF US30, York, PA

Built 1954 Load: 32.7 t ADT: 13,498

SR 2029

Fair

Over: CABIN CREEK

5 MILE NE OF RED LION, York, PA

Built 1934 Load: 32.7 t ADT: 914

SR 2047 Kilgore rd

Fair

Over: FISHING CREEK

1 MI. S.W. BRYANSVILLE, York, PA

Built 1948 Load: 32.7 t ADT: 991

SR 2057

Fair

Over: BALD EAGLE CREEK

1 MI.N. OF FAWN GROVE, York, PA

Built 1959 Load: 32.7 t ADT: 1,337

SR 3001

Fair

Over: TYLERS RUN

1 MI.S. OF CITY OF YORK, York, PA

Built 1910 Load: 32.7 t ADT: 7,579

SR 4002

Fair

Over: TRIB CONEWAGO CREEK

4 MI. NORTH OF PA 234, York, PA

Built 1964 Load: 32.7 t ADT: 2,681

MOUNT TOP ROAD

Fair

Over: NORTH BR BERMUDIAN CR

0.8 MI E OF SR 194, York, PA

Built 1967 Load: 32.7 t ADT: 191

LIONERS CRK. ROAD

Fair

Over: INNERS CREEK

1.8E JACOBUS/LIONERS CRK, York, PA

Built 1970 Load: 32.7 t ADT: 233

POWDER MILL ROAD

Fair

Over: TYLER RUN

2 S YORK CITY/TYLER RUN, York, PA

Built 1949 Load: 32.7 t ADT: 4,610

POWDER MILL ROAD

Fair

Over: TYLER RUN

2 S YRK CITY/TYLER RUN, York, PA

Built 1948 Load: 32.7 t ADT: 4,610

SEITZVILLE ROAD

Fair

Over: SO BRANCH CODORUS CREEK

@ SEITZVILLE/S.BR.CODORUS, York, PA

Built 1910 Load: 32.7 t ADT: 141

GRAINERY ROAD

Fair

Over: SO BRANCH CODORUS CREEK

S.BR.CODORUS/@ SEITZVILLE, York, PA

Built 1916 Load: 32.7 t ADT: 34

DAIRY ROAD

Fair

Over: TRIB TO CONEWAGO CREEK

1.75 MI WEST OF ADMIRE, York, PA

Built 1973 Load: 32.7 t ADT: 75

CARDINAL LANE

Fair

Over: FOX RUN

1.3 N WEIGELSTOWN/FOX RUN, York, PA

Built 1916 Load: 32.7 t ADT: 1,414

Showing 5,001-5,050 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.