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

HILL ROAD

Fair

Over: THREEMILE RUN

EAST ROCKHILL TWP. 14E11, Bucks, PA

Built 1930 Load: 32.7 t ADT: 300

GRUVER ROAD

Fair

Over: TOHICKON CREEK

BEDMINSTER;TINICUM 16K02, Bucks, PA

Built 1925 Load: 32.7 t ADT: 100

SHEEP HOLE ROAD

Fair

Over: TINICUM CREEK

TINICUM TOWNSHIP 10J08, Bucks, PA

Built 1900 Load: 32.7 t ADT: 50

CLYMER AVENUE

Fair

Over: MILL CREEK

0.8 MI N SR 152 2919-K4, Bucks, PA

Built 1875 Load: 32.7 t ADT: 201

TURK ROAD T389

Fair

Over: HAILEYS RUN

0.1 MI E SR-611S 3034-K4, Bucks, PA

Built 1982 Load: 32.7 t ADT: 840

AUSTIN DRIVE

Fair

Over: TRIB TO QUEEN ANNE CREEK

.30MI NW OF SR2018 3263C2, Bucks, PA

Built 1953 Load: 32.7 t ADT: 1,400

AUSTIN DRIVE

Fair

Over: TRIB TO QUEEN ANNE CREEK

.25MI N OF SR2018 3263-E1, Bucks, PA

Built 1953 Load: 32.7 t ADT: 1,000

BURNT HOUSE HILL R

Fair

Over: PINE RUN 2923-B4

1.5MI SW OF SR 413, Bucks, PA

Built 1984 Load: 32.7 t ADT: 330

ERIE ROAD

Fair

Over: TOHICKON CREEK TRIBUTARY

EAST QUAKERTOWN 2695-H10, Bucks, PA

Built 1987 Load: 32.7 t ADT: 700

CONNECT PA263&NJ29

Fair

Over: PENNSYLVANIA CANAL

CENTRE BR PA 26H02, Bucks, PA

Built 1926 Load: 32.7 t ADT: 4,600

SYCAMORE DRIVE

Fair

Over: TRIB.LITTLE NESHAMINY CR

2MI.W.NAVALAIR ST 3147-J4, Bucks, PA

Built 1980 Load: 32.7 t ADT: 400

PA TPK (I-476)

Fair

Over: SR 4055 LR 09109

WEST OF TRUMBAUERSVILLE, Bucks, PA

Built 1955 Load: 32.7 t ADT: 50,307

WOODSIDE ROAD

Fair

Over: DELAWARE CANAL

900 FT EAST OF SR 2071, Bucks, PA

Built 1986 Load: 32.7 t ADT: 830

VA FORREST BRIDGE

Fair

Over: DELAWARE CANAL

75 FT NORTH OF SR 32, Bucks, PA

Built 1970 Load: 32.7 t ADT: 50

BRIDGE TWO LANE

Fair

Over: DELAWARE CANAL

50 FT EAST OF SR 32, Bucks, PA

Built 2002 Load: 32.7 t ADT: 5

SR0008 NB&SB

Fair

Over: GLADE RUN

GLADE MILLS, Butler, PA

Built 1934 Load: 32.7 t ADT: 30,025

SR0019 NB&SB

Fair

Over: GLADE RUN

LUTZ, Butler, PA

Built 1951 Load: 32.7 t ADT: 23,715

SR0019 NB&SB

Fair

Over: GLADE RUN

SOUTH OF ZELIENOPLE, Butler, PA

Built 1951 Load: 32.7 t ADT: 15,624

SR0058

Fair

Over: FOWLER RUN

FOWLER RUN NO.1, Butler, PA

Built 1990 Load: 32.7 t ADT: 333

SR0068 EB&WB

Fair

Over: CONNOQUENESSING CREEK

CONNOQUEN ARCH, Butler, PA

Built 1937 Load: 32.7 t ADT: 8,508

I-79 SR8079 SR9479

Fair

Over: TRIB TO BRUSH CREEK

EPWORTH, Butler, PA

Built 1969 Load: 32.7 t ADT: 86,014

SR0079 NB&SB

Fair

Over: LITTLE YELLOW CREEK

LITTLE YELLOW, Butler, PA

Built 1963 Load: 32.7 t ADT: 25,109

SR 0228

Fair

Over: BREAKNECK CREEK

SOUTH OF MARS, Butler, PA

Built 1962 Load: 32.7 t ADT: 19,278

SR0228

Fair

Over: TRIB TO GLADE RUN

EAST OF GLADE MILLS, Butler, PA

Built 1961 Load: 32.7 t ADT: 8,701

SR0422

Fair

Over: MULLIGAN RUN

EAST OF PROSPECT, Butler, PA

Built 1948 Load: 32.7 t ADT: 17,671

SR0422

Fair

Over: TR TO CONNOQUENESSING CR

NORTH OF BUTLER, Butler, PA

Built 1960 Load: 32.7 t ADT: 17,671

SR0422

Fair

Over: LITTLE BUFFALO RUN

WEST OF COYLEVILLE, Butler, PA

Built 1956 Load: 32.7 t ADT: 12,854

SR1021

Fair

Over: BUFFALO RUN

RATTIGAN NO.2, Butler, PA

Built 1965 Load: 32.7 t ADT: 330

SR2010

Fair

Over: TRIB TO THORN CREEK

LEGGENS LANE, Butler, PA

Built 1981 Load: 32.7 t ADT: 2,431

SR3003

Fair

Over: BUTCHER RUN

SOUTH OF BUTLER, Butler, PA

Built 1984 Load: 32.7 t ADT: 1,562

SR4007

Fair

Over: SR0079 NB&SB

WEST PARK RD NO.6, Butler, PA

Built 1964 Load: 32.7 t ADT: 657

SR4008

Fair

Over: HOGUE RUN

WEST LIBERTY NO.1, Butler, PA

Built 1935 Load: 32.7 t ADT: 269

T-620 FALLECKER RD

Fair

Over: BONNIE BROOK

0.12 MI NW OF T-601, Butler, PA

Built 1920 Load: 32.7 t ADT: 100

T-601 RALSTON RD

Fair

Over: SLIPPERY ROCK CREEK

0.2 MI NW OF SR 008, Butler, PA

Built 1992 Load: 32.7 t ADT: 500

NORTH SHORE DRIVE

Fair

Over: MONINOT RUN

3/4 MI NE OF SR 4007, Butler, PA

Built 1972 Load: 32.7 t ADT: 100

US22 WBL & RAMP

Fair

Over: NORFOLK SOUTHERN RR

0.2 MILE WEST OF TR 53, Cambria, PA

Built 1983 Load: 32.7 t ADT: 10,512

PA 53

Fair

Over: LAUREL RUN

0.8 MILE NORTH OF TR 219, Cambria, PA

Built 1965 Load: 32.7 t ADT: 3,559

PA 56

Fair

Over: PAINT CREEK

67 FT WEST OF SOMERSET CO, Cambria, PA

Built 1959 Load: 32.7 t ADT: 19,347

US 219 NBL

Fair

Over: SR 3034

0.7 MILE NORTH OF TR 22, Cambria, PA

Built 1975 Load: 32.7 t ADT: 5,702

US 219 SBL

Fair

Over: SR 3034

0.7 MILE NORTH OF TR 22, Cambria, PA

Built 1975 Load: 32.7 t ADT: 5,230

SR 2009

Fair

Over: ROARING RUN

4 MI.S.OF EBENSBURG, Cambria, PA

Built 1985 Load: 32.7 t ADT: 1,438

T-359 RHODES CROSS

Fair

Over: Sulphur Creek

1 MI.E.OF SALIX, Cambria, PA

Built 1977 Load: 32.7 t ADT: 100

T-490 Preisser Rd

Fair

Over: ELK CREEK

1.7 MI.NW.OF COLVER, Cambria, PA

Built 1918 Load: 32.7 t ADT: 109

T330 PLUMMER ROAD

Fair

Over: TR. S FK LITTLE CONE. RI

2 MI NW OF SIDMAN, Cambria, PA

Built 1977 Load: 32.7 t ADT: 31

OAK STREET

Fair

Over: NORFOLK S. RR L CONEM R

SOUTHFORK BOROUGH OAK ST, Cambria, PA

Built 1990 Load: 32.7 t ADT: 1,350

SR 872-PA 872

Fair

Over: LICK ISLAND RUN

4 MI N SINNEMAHONING, Cameron, PA

Built 1963 Load: 32.7 t ADT: 672

PA 534(LR 13018)

Fair

Over: SANDSPRING RUN

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

Built 1913 Load: 32.7 t ADT: 470

SR 2011 (LR 13015)

Fair

Over: POHOPOCO CREEK

.25 MI. N. OF TRACHSVILLE, Carbon, PA

Built 1967 Load: 32.7 t ADT: 912

SR 3007(LR 13007)

Fair

Over: MAHONING CREEK

SENECA RD. NORTH OF 443, Carbon, PA

Built 1910 Load: 32.7 t ADT: 910

SR 4010(APPL 1012)

Fair

Over: BUCK MOUNTAIN CREEK

ROCKPORT, Carbon, PA

Built 1920 Load: 32.7 t ADT: 1,902

Showing 4,151-4,200 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.