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-349

Poor

Over: FISHING CREEK

2 MI. WEST OF TYLERSVILLE, Clinton, PA

Built 1950 Load: 2.7 t ADT: 175

T-373 CTY BR. 11

Poor

Over: ROARING CREEK

3.1 MI. S. OF CATAWISSA, Columbia, PA

Built 1905 Load: 2.7 t ADT: 50

T-896 SPORTSMAN RD

Poor

Over: OVER EAST BR. OIL CREEK

3 MI SW SPARTANSBURG, Crawford, PA

Built 1901 Load: 2.7 t ADT: 250

SR 1007

Poor

Over: WICONISCO CREEK

1.5 MI. N.W. OF E-VILLE, Dauphin, PA

Built 1973 Load: 2.7 t ADT: 519

Yuras Farm Road

Poor

Over: Browns Run

100 S of SR3012, Fayette, PA

Built 1920 Load: 2.7 t ADT: 50

Taylor Flats Road

Poor

Over: Redstone Creek

100 W of T-655, Fayette, PA

Built 1962 Load: 2.7 t ADT: 300

Meadow Run Road

Poor

Over: Meadow Run

1/4 mi N of T-415, Fayette, PA

Built 1904 Load: 2.7 t ADT: 55

T-652 ALBIN RD

Poor

Over: BIG RUN

300 FT NW OF SR 286, Indiana, PA

Built 1915 Load: 2.7 t

T429 (OLD MILL RD)

Poor

Over: W. BR. WALLENPAUPACK CR.

150 NORTHEAST OF PA 348, Lackawanna, PA

Built 1930 Load: 2.7 t ADT: 50

ASH STREET

Poor

Over: ROARING BROOK

100 FT SE OF RICHTER AVE, Lackawanna, PA

Built 1958 Load: 2.7 t ADT: 1,900

BRIDGE VALLEY RD

Poor

Over: CHIQUES CREEK

1300 FT NORTH OF SR 23, Lancaster, PA

Built 1900 Load: 2.7 t ADT: 750

OLD ROUTE 18 RT

Poor

Over: MAHONING RIVER

206010 WILLOWGROVE BRDG#1, Lawrence, PA

Built 1932 Load: 2.7 t ADT: 50

CASCADE BLVD

Poor

Over: BIG RUN

1500 NORTH OF DESHON RD, Lawrence, PA

Built 1955 Load: 2.7 t ADT: 25

T-471 GOLF ROAD

Poor

Over: LITTLE SWATARA CREEK

450 N OF FREEPORT RD, Lebanon, PA

Built 1933 Load: 2.7 t ADT: 300

JORDAN ROAD

Poor

Over: JORDAN CREEK

KERNSVILLE, Lehigh, PA

Built 1858 Load: 2.7 t ADT: 200

GROSS ROAD

Poor

Over: HUNTSVILLE CREEK

NEAR HILLSIDE COUNTY RD, Luzerne, PA

Built 1975 Load: 2.7 t ADT: 130

T-499 CLARKS LANE

Poor

Over: W BR TUNUNGWANT CREEK

900 E OF LANGMAID LANE, McKean, PA

Built 1955 Load: 2.7 t ADT: 150

SHERWOOD FOREST RD

Poor

Over: APPENZELL CREEK

NORTHWEST OF NEOLA, Monroe, PA

Built 1979 Load: 2.7 t ADT: 150

T-302 S WOODS RD

Poor

Over: SOUTH WOODS BRANCH

1.8 MI NORTH OF SR 3003, Potter, PA

Built 1950 Load: 2.7 t ADT: 25

T-356 BRYANT HO RD

Poor

Over: OSWAYO CREEK

0.1 MI FROM RT#244, Potter, PA

Built 1907 Load: 2.7 t ADT: 50

T519 (Stone Br Rd.

Poor

Over: EAST BR. TUNKHANNOCK CR.

2 MI W OF UNIONDALE, Susquehanna, PA

Built 1910 Load: 2.7 t ADT: 20

T-592 (SVECZ ROAD)

Poor

Over: E. BR. LACKAWANNA RIVER

3 MI. NORTH OF UNIONDALE, Susquehanna, PA

Built 1900 Load: 2.7 t ADT: 50

PATTERSON MILL BRI

Poor

Over: CROSS CREEK TRIB

250 EAST OF SR 4029, Washington, PA

Built 1913 Load: 2.7 t ADT: 30

Ash Road

Poor

Over: WHEELING CREEK TRIB

500 WEST OF SR 3035, Washington, PA

Built 1903 Load: 2.7 t ADT: 10

COAL CENTER BRIDGE

Poor

Over: PIKE RUN

100 FROM MON RIVER, Washington, PA

Built 1887 Load: 2.7 t ADT: 500

SR4041 ROCK LKE RD

Poor

Over: EQUINUNK CREEK

PRESTON TWP 1 M S SR 4033, Wayne, PA

Built 1949 Load: 2.7 t ADT: 275

STRICKLER SCHOOL R

Poor

Over: KREUTZ CREEK

1.35SW WRGHTSVLE/KREUTZ C, York, PA

Built 1961 Load: 2.7 t ADT: 631

BEAVER CREEK ROAD

Poor

Over: BEAVER CREEK

1S E.BERLIN/YORK ADAMS, York, PA

Built 1972 Load: 2.7 t ADT: 250

Old York Road

Poor

Over: Conrail

.5 Mi S of US-13 3480-G9, Philadelphia, PA

Built 1913 Load: 2.7 t ADT: 7,500

TOWNSHIP ROAD 182

Poor

Over: BIG RUN

0.7 MI. S. CR186, Mercer, PA

Built 1964 Load: 2.7 t ADT: 324

T-507 GRANDVIEW RD

Poor

Over: TULPEHOCKEN CREEK

2 MI.S.W.OF BERNVILLE, Berks, PA

Built 1889 Load: 3.6 t ADT: 11

HEIDELBERG

Poor

Over: SPRING CREEK

WEST OF BROWNSVILLE, Berks, PA

Built 1920 Load: 3.6 t ADT: 73

ROCK HOLLOW RD

Poor

Over: HAY CREEK

WEST OF RT. 82, Berks, PA

Built 1960 Load: 3.6 t ADT: 100

T-421 ZORGER RD

Poor

Over: W BR SUSQUEHANNA RIVER

800 FT SE OF US 219, Clearfield, PA

Built 1920 Load: 3.6 t

T-207

Poor

Over: KRATZER RUN

30 SOUTH OF SR 879, Clearfield, PA

Built 1920 Load: 3.6 t ADT: 70

T-807 KIGHTLINGER

Poor

Over: OVER COULTER RUN

1.5 MI. NW VENANGO, Crawford, PA

Built 1930 Load: 3.6 t ADT: 250

T-636 DEWEY ROAD

Poor

Over: FRENCH CREEK

1500 NW OF STONE QUARRY, Erie, PA

Built 1889 Load: 3.6 t ADT: 30

CENTURY ROAD

Poor

Over: DUNLAP CREEK

1700 SE OF JACKSON ST, Fayette, PA

Built 1920 Load: 3.6 t ADT: 20

SR 3007 LEMAR RD.

Poor

Over: W BR CONOCOCHEAGUE CREEK

VILLAGE OF MARKES, Franklin, PA

Built 1960 Load: 3.6 t ADT: 1,803

SPRING STREET

Poor

Over: RACKET BROOK

SOUTH OF BUS. RTE. 6, Lackawanna, PA

Built 1950 Load: 3.6 t ADT: 70

MILL STREET

Poor

Over: DEL-LACK RR/ROARING BRK

3/4 MI SE OF SR 6011, Lackawanna, PA

Built 1917 Load: 3.6 t ADT: 2,000

WEAVER ROAD

Poor

Over: COCALICO CREEK

200 FT SOUTH OF SR 1051, Lancaster, PA

Built 1950 Load: 3.6 t ADT: 1,800

BASIN STREET

Poor

Over: LITTLE LEHIGH CREEK

BETWEEN 3RD & 4TH STREET, Lehigh, PA

Built 1959 Load: 3.6 t ADT: 14,700

LEBANON AVE.

Poor

Over: OVER SAUL RUN

LEBANON AVE. GREENVILLE, Mercer, PA

Built 1934 Load: 3.6 t ADT: 214

US 209 & PA 33NB

Poor

Over: APPENZELL CREEK

.5M.N.OF SNYDERSVILLE EX., Monroe, PA

Built 1963 Load: 3.6 t ADT: 20,037

T-351 TOPEKA ROAD

Poor

Over: OSWAYO CREEK

400 FT FROM SR 44, Potter, PA

Built 1920 Load: 3.6 t

T805 DEPOT STREET

Poor

Over: CASSELMAN RIVER

SALISBURY DEPOT STREET, Somerset, PA

Built 1894 Load: 3.6 t ADT: 100

T666 LENHART ROAD

Poor

Over: STONYCREEK RIVER

.3 MI.SE.OF STOYSTOWN, Somerset, PA

Built 1887 Load: 3.6 t ADT: 75

T712 WHISP PINES R

Poor

Over: DARK SHADE CREEK

1.3 MI.N.OF CENTRAL CITY, Somerset, PA

Built 1900 Load: 3.6 t ADT: 50

JOHNSTON STREET

Poor

Over: SALT LICK CREEK

NEW MILFORD 600 TO RT 11, Susquehanna, PA

Built 1913 Load: 3.6 t ADT: 100

Showing 20,551-20,600 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.