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

HOLLOW AVENUE

Poor

Over: LEGGETTS CREEK

500 FT NE OF W MARKET ST, Lackawanna, PA

Built 1958 Load: 16.3 t ADT: 50

T-943 TROUT RUN RD

Poor

Over: INDIAN RUN

1/2 MI WEST OF SR 272, Lancaster, PA

Built 1974 Load: 16.3 t ADT: 1,035

TWP RD;OLD SR 1022

Poor

Over: MONROE CREEK

3 MI.E. OF I-81, Lebanon, PA

Built 1940 Load: 16.3 t ADT: 542

SR 3019

Poor

Over: HAZLE CREEK

HAZLE TWP .3 M S SR 3030, Luzerne, PA

Built 1961 Load: 16.3 t ADT: 2,724

BARBOUR ST

Poor

Over: BENNETT BROOK

200 WEST OF N BENNETT ST, McKean, PA

Built 1955 Load: 16.3 t ADT: 1,200

SR 2014 SCRUBGRASS

Poor

Over: COOL SPRING

FINDLEY TOWNSHIP, Mercer, PA

Built 1954 Load: 16.3 t ADT: 1,673

BRIDGE 1606 T-661

Poor

Over: OVER LITTLE SHENANGO BR.

HUTCHISON RD.LAKE TWP., Mercer, PA

Built 1965 Load: 16.3 t ADT: 24

VALLEY FORGE ROAD

Poor

Over: TROUT/MASCHELLAMAC CREEK

VALLEY FORGE 3366E4, Montgomery, PA

Built 1874 Load: 16.3 t ADT: 22,010

LEWIS ROAD

Poor

Over: MINGO CREEK

U PROVIDENCE 3252G01, Montgomery, PA

Built 1959 Load: 16.3 t ADT: 3,586

COLUMBUS STREET

Poor

Over: ROSETO CREEK

0.1 M. EAST OF SR 191, Northampton, PA

Built 1924 Load: 16.3 t ADT: 400

SR 3016; TWP RD

Poor

Over: TRIB SHERMANS CREEK

2 MI.S.W. OF SHERMANSDALE, Perry, PA

Built 1918 Load: 16.3 t ADT: 647

T-374 MTN VIEW RD

Poor

Over: SUGAR HILL CREEK

2.0 MI WEST OF SR 0447, Pike, PA

Built 1960 Load: 16.3 t ADT: 50

SHOHOLA FALLS ROAD

Poor

Over: BALLIARD CREEK

EAST OF GREELEY, Pike, PA

Built 1912 Load: 16.3 t ADT: 50

T304 BIG MOORES RD

Poor

Over: BIG MOORES RUN

3.5 MI NORTH OF SR 3003, Potter, PA

Built 1975 Load: 16.3 t ADT: 20

T-771 CIRCLE ROAD

Poor

Over: BENS CREEK

1.5 MI.NW.OF JEROME, Somerset, PA

Built 1940 Load: 16.3 t ADT: 103

SR 0247 TR 247

Poor

Over: D&H RAILROAD (ABANDONED)

FOREST CITY 983 E TR 171, Susquehanna, PA

Built 1961 Load: 16.3 t ADT: 2,658

SR 208

Poor

Over: OVER SR 80 EB/WB

CLINTON TOWNSHIP, Venango, PA

Built 1965 Load: 16.3 t ADT: 1,435

CRAWFORD BRIDGE

Poor

Over: Wheeling Creek Trib

400 WEST OF SR 3037, Washington, PA

Built 1887 Load: 16.3 t ADT: 30

SR 0191 TR 191

Poor

Over: WALLENPAUPACK CREEK

STERLING TWP .7M N TR 196, Wayne, PA

Built 1985 Load: 16.3 t ADT: 3,427

No 5 FACTORY T603

Poor

Over: EQUINUNK CREEK

BUCKINGHAM 75 FT W 4007, Wayne, PA

Built 1901 Load: 16.3 t ADT: 35

MAHAFFEY HILL ROAD

Poor

Over: BRUSH CREEK

1/2 MI SW OF SR 993, Westmoreland, PA

Built 1978 Load: 16.3 t ADT: 500

COUNTY ROAD

Poor

Over: WELTY RUN

1/2 MI SE OF HILL CHURCH, Westmoreland, PA

Built 1986 Load: 16.3 t ADT: 4,100

CECIL B. MOORE AVE

Poor

Over: AMTRAK

NEAR 31ST ST. 3590A03, Philadelphia, PA

Built 1909 Load: 16.3 t ADT: 2,977

BERTHEL AVENUE

Poor

Over: CATFISH CREEK

500 SW OF SR18 INTERSECT, Washington, PA

Built 1950 Load: 16.3 t ADT: 500

MT. PLEASANT ROAD

Poor

Over: STAUFFER RUN

MT. PLEASANT ROAD BRIDGE, Westmoreland, PA

Built 1990 Load: 16.3 t ADT: 500

SOUTH ALBERT ST.

Poor

Over: LEHIGH CANAL

CANAL PARK, Lehigh, PA

Built 1940 Load: 16.3 t ADT: 200

NELSON DRIVEWAY

Poor

Over: E.BR. CONNEAUT CREEK

0.1 MI. NORTH OF SR 4010, Crawford, PA

Built 1935 Load: 16.3 t ADT: 15

CLEARVIEW RD

Poor

Over: SERVICE CREEK

INTERSECTION WITH SR 3020, Beaver, PA

Built 1900 Load: 17.2 t ADT: 226

T557 Yellow Crk Dr

Poor

Over: YELLOW CREEK

3 MI.SE.OF LOYSBURG, Bedford, PA

Built 1980 Load: 17.2 t ADT: 60

LITTLE MTN. ROAD

Poor

Over: TRIB. TO CROSSKILL CREEK

W.OF FRYSTOWN, Berks, PA

Built 1930 Load: 17.2 t ADT: 150

WOOLTOWN RD

Poor

Over: SPRING CREEK

WEST OF HEIDELBERG ROAD, Berks, PA

Built 1964 Load: 17.2 t ADT: 161

T-348 (CO.BR. #13)

Poor

Over: TOWANDA CREEK

1.4 M.E. OF WEST FRANKLIN, Bradford, PA

Built 1904 Load: 17.2 t ADT: 50

Butter Creek Road

Poor

Over: Butter Creek

2.3 Mi W PA-309 2807-A8, Bucks, PA

Built 1933 Load: 17.2 t ADT: 100

T-416 PIPESTEM RD

Poor

Over: FINDLAY RUN

1 1/8 MI FROM INT W/T418, Butler, PA

Built 1936 Load: 17.2 t ADT: 100

T-556 GREAT BELT

Poor

Over: TRIB TO THORN CREEK

0.45 MI NE of SR 2010, Butler, PA

Built 1957 Load: 17.2 t ADT: 200

T-519 FIEDLER RD

Poor

Over: PINE CREEK

1.1 MI WEST OF WOODWARD, Centre, PA

Built 1925 Load: 17.2 t ADT: 15

PUSEY MILL ROAD

Poor

Over: E. BRANCH BIG ELK CREEK

1 Mi NW Balt Pike 3798-F8, Chester, PA

Built 1921 Load: 17.2 t ADT: 1,154

T-341 MYERS HOLLOW

Poor

Over: CHERRY RUN

0.1 mi W int w/ SR 2009, Clarion, PA

Built 1950 Load: 17.2 t ADT: 50

PAPER MILL ROAD

Poor

Over: DARBY CREEK

1.25MI.NE PA-252 8-F8, Delaware, PA

Built 1927 Load: 17.2 t ADT: 40

T-346

Poor

Over: JACOBS CREEK

1.0 MI NE OF SR 0166, Fayette, PA

Built 1910 Load: 17.2 t ADT: 127

SR0119

Poor

Over: LITTLE MAHONING CREEK

SATTERLEE, Indiana, PA

Built 1971 Load: 17.2 t ADT: 4,149

T-737 Alfarata Rd

Poor

Over: Jacks Creek

800 N OF SR 2004, Mifflin, PA

Built 1935 Load: 17.2 t ADT: 390

REEDS GAP ROAD

Poor

Over: HONEY CREEK

0.5 MI EAST OF PARK ENTR, Mifflin, PA

Built 1933 Load: 17.2 t ADT: 45

SR 1016(LR 45014)

Poor

Over: LONGSHORE CREEK

LOWER LAKE VIEW DRIVE, Monroe, PA

Built 1949 Load: 17.2 t ADT: 913

TOWNSHIP LINE ROAD

Poor

Over: LODAL CREEK

SW SCHWENKSVI 3141B4, Montgomery, PA

Built 1950 Load: 17.2 t ADT: 11,563

SPRING ROAD

Poor

Over: SHOHOLA CREEK

LORDS VALLEY, Pike, PA

Built 1924 Load: 17.2 t ADT: 10

NORTH SHORE ROAD

Poor

Over: BIG INLET

PROMISED LAND STATE PARK, Pike, PA

Built 1935 Load: 17.2 t ADT: 80

SR 4031 (LR 53088)

Poor

Over: SHENANDOAH CREEK

568 FT. N.OF PA 54, Schuylkill, PA

Built 1937 Load: 17.2 t ADT: 163

T-481 BREON ROAD

Poor

Over: OVER TUSCARORA CR.

2 MI SW OF NEW BERLIN, Snyder, PA

Built 1940 Load: 17.2 t ADT: 100

HIGH STREET

Poor

Over: CSX RAILROAD

MEYERSDALE BORO HIGH ST, Somerset, PA

Built 1948 Load: 17.2 t ADT: 205

Showing 21,151-21,200 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.