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

T-333 ALINE CHURCH

Fair

Over: N.BR.MAHANTANGO CR.

0.5 MI.NW OF MEISERVILLE, Snyder, PA

Built 1982 Load: 29.0 t ADT: 500

US 219 NBL

Fair

Over: CSX RAILROAD

0.2 MILE NORTH OF TR 281, Somerset, PA

Built 1973 Load: 29.0 t ADT: 5,453

SR 2037

Fair

Over: BIGBY RUN

2 MI.SW.OF GARRETT, Somerset, PA

Built 1964 Load: 29.0 t ADT: 557

SR 4023

Fair

Over: QUEMAHONING CREEK

.6 M.S.JENNERS CROSSROADS, Somerset, PA

Built 1971 Load: 29.0 t ADT: 1,721

SR 0087

Fair

Over: OVER DRY RUN

1.5 MI S OF HILLSGROVE, Sullivan, PA

Built 1937 Load: 29.0 t ADT: 702

SR 87

Fair

Over: OVER WOLF RUN

1 MI EAST OF COLLEY, Sullivan, PA

Built 1934 Load: 29.0 t ADT: 471

SR 4008

Fair

Over: OVER KINGS CREEK

VILLAGE OF ESTELLA, Sullivan, PA

Built 1967 Load: 29.0 t ADT: 328

SR 0081 I-81 NB

Fair

Over: EAST BR TUNKHANNOCK CR

LENOX TWP .2 M N TR 374, Susquehanna, PA

Built 1961 Load: 29.0 t ADT: 9,285

SR 0081 I-81 SB

Fair

Over: SR 0374

LENOX TWP OVER SR 0374, Susquehanna, PA

Built 1961 Load: 29.0 t ADT: 8,939

SR 0848 TR 848

Fair

Over: WELLMANS CREEK

NEW MILFORD TP JCT SR2061, Susquehanna, PA

Built 1946 Load: 29.0 t ADT: 2,709

SR 3017

Fair

Over: OUTLET STATE POND

SPRINGVLLE TP 1.5M S TR29, Susquehanna, PA

Built 1950 Load: 29.0 t ADT: 164

T-548 PODUNK ROAD

Fair

Over: BUTLER CREEK

2.1 MILES EAST OF HARFORD, Susquehanna, PA

Built 1968 Load: 29.0 t ADT: 75

E. MTN. RD. (T609)

Fair

Over: E. BR. LACKAWANNA RIVER

UNION DALE .3 MI E OF 171, Susquehanna, PA

Built 1920 Load: 29.0 t ADT: 75

T-622 COBB HILL RD

Fair

Over: MDL BRANCH WYALUSING CRK

.1 MI W OF BIRCHARDVILLE, Susquehanna, PA

Built 1887 Load: 29.0 t ADT: 100

SR 0287

Fair

Over: OVER CROOKED CR.

2 MI N OF MIDDLEBURY CTR, Tioga, PA

Built 1935 Load: 29.0 t ADT: 2,620

SR 3001

Fair

Over: CEDAR RUN

VILLAGE OF LEETONIA, Tioga, PA

Built 1952 Load: 29.0 t ADT: 20

SR 4007

Fair

Over: OVER NORTH BROOK

1 MI W OF AUSTINBURG, Tioga, PA

Built 1953 Load: 29.0 t ADT: 150

SR 45 (TR-45)

Fair

Over: OVER BULL RUN

VILLAGE OF LINNTOWN, Union, PA

Built 1938 Load: 29.0 t ADT: 11,926

SR 1003

Fair

Over: LITTLE BUFFALO CREEK

1 MI WEST OF KELLY POINT, Union, PA

Built 1985 Load: 29.0 t ADT: 431

SR 6 EB/WB

Fair

Over: OVER ALLEGHENY RIVER

PLEASANT TOWNSHIP, Warren, PA

Built 1976 Load: 29.0 t ADT: 8,194

SR 62

Fair

Over: OVER ALLEGHENY RAILROAD

BROKENSTRAW TOWNSHIP, Warren, PA

Built 1968 Load: 29.0 t ADT: 2,834

SR 426

Fair

Over: OVER WINTON RUN

COLUMBUS TOWNSHIP, Warren, PA

Built 1926 Load: 29.0 t ADT: 3,690

SR 958

Fair

Over: OVER BEAR CREEK

FREEHOLD TOWNSHIP, Warren, PA

Built 1930 Load: 29.0 t ADT: 287

SR 1008 HATCH RUN

Fair

Over: OVER CONEWANGO CREEK

GLADE TOWNSHIP, Warren, PA

Built 1972 Load: 29.0 t ADT: 699

SR 3034 (T-903)

Fair

Over: SR 0070

DONEGAL TOWNSHIP, Washington, PA

Built 1966 Load: 29.0 t ADT: 432

SR 3047 (T-474)

Fair

Over: SR 0070

BUFFALO TOWNSHIP, Washington, PA

Built 1960 Load: 29.0 t ADT: 170

SR 2020

Fair

Over: TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1938 Load: 29.0 t ADT: 233

SR 2034

Fair

Over: PIKE RUN

WEST PIKE RUN TOWNSHIP, Washington, PA

Built 1941 Load: 29.0 t ADT: 111

SR 2065

Fair

Over: BARNEYS RUN

CENTERVILLE BOROUGH, Washington, PA

Built 1984 Load: 29.0 t ADT: 415

SR 4018

Fair

Over: NORTH FORK CROSS CREEK

CROSS CREEK TOWNSHIP, Washington, PA

Built 1966 Load: 29.0 t ADT: 182

SR 0191 TR 191

Fair

Over: UBAN CREEK

STERLING TWP .1 M N I-84, Wayne, PA

Built 1957 Load: 29.0 t ADT: 2,731

SR 0380 I-380 NB

Fair

Over: LEHIGH RIVER

LEHIGH TWP LACK CTY LINE, Wayne, PA

Built 1967 Load: 29.0 t ADT: 9,765

SR 1001

Fair

Over: CARLEY BROOK

HONESDALE BO .7M N SR1005, Wayne, PA

Built 1974 Load: 29.0 t ADT: 584

SR 1008

Fair

Over: TRIB TO DELAWARE RIVER

DAMASCUS TWP .1M W TR 652, Wayne, PA

Built 1962 Load: 29.0 t ADT: 251

SR 1023

Fair

Over: S BR EQUINUNK CREEK

MANCHSTR TP 1.5M S SR1018, Wayne, PA

Built 1950 Load: 29.0 t ADT: 90

SR 4015 PARK ST

Fair

Over: DYBERRY CREEK

HONESDALE BOR .1 M E TR 6, Wayne, PA

Built 1997 Load: 29.0 t ADT: 771

OLD ROAD

Fair

Over: HOLLISTER CREEK

WEST END OF ROAD, Wayne, PA

Built 1963 Load: 29.0 t ADT: 50

SR 0819

Fair

Over: SLATE CREEK

SOUTH GREENSBURG BOROUGH, Westmoreland, PA

Built 1937 Load: 29.0 t ADT: 2,804

SR 1020

Fair

Over: BRANCH OF SAXMAN RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1960 Load: 29.0 t ADT: 5,172

SR 4031

Fair

Over: BRANCH OF BRUSH CREEK

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1954 Load: 29.0 t ADT: 131

T474 WHIGHAM RD

Fair

Over: LITTLE SEWICKLEY CREEK

0.6 MI SO RTE 136, Westmoreland, PA

Built 1996 Load: 29.0 t ADT: 354

T732 Moore Avenue

Fair

Over: TRIBUTARY OF BRUSH CREEK

60 SOUTH OF SR 130, Westmoreland, PA

Built 1957 Load: 29.0 t ADT: 167

T812 Brush Creek

Fair

Over: Brush Creek

BTW T770 & T487, Westmoreland, PA

Built 1936 Load: 29.0 t ADT: 75

SR 1031

Fair

Over: TUNKHANNOCK CREEK

NICHOLSON TWP .1M S TR 92, Wyoming, PA

Built 1984 Load: 29.0 t ADT: 594

SR 2007

Fair

Over: BOWMANS CREEK

EATON TWP 160 S TR 29, Wyoming, PA

Built 1965 Load: 29.0 t ADT: 901

SR 3001

Fair

Over: SUSQUEHANNA RIVER

LACEYVLE BO 700S SR 4006, Wyoming, PA

Built 1974 Load: 29.0 t ADT: 439

US 30; SR 0030

Fair

Over: York Rail

.2 MILE NORTH OF LR126, York, PA

Built 1969 Load: 29.0 t ADT: 36,144

PA 462; frysville

Fair

Over: KREUTZ CREEK

.8 MI. WEST OF HALLAM, York, PA

Built 1934 Load: 29.0 t ADT: 12,180

PA 624; craley rd.

Fair

Over: FISHING CREEK

1 MI SW OF MARTINSVILLE, York, PA

Built 1931 Load: 29.0 t ADT: 2,052

SR 2070

Fair

Over: E BRANCH OF CODORUS CR

2 MILE E OF LOGANVILLE, York, PA

Built 1973 Load: 29.0 t ADT: 1,048

Showing 2,801-2,850 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.