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

UNION CHURCH RD.

Fair

Over: TRIB. TO RAMBO RUN

1.5 SE CROSSROADS/TR RAMB, York, PA

Built 1912 Load: 32.7 t ADT: 100

T-629 ALUM ROCK RD

Fair

Over: ALUM ROCK RUN

1.7 MI NW OF SR 2069, York, PA

Built 1980 Load: 32.7 t ADT: 100

CAMPBELL RD

Fair

Over: KREUTZ CREEK

1 SW HALLAM/KREUTZ CREEK., York, PA

Built 1972 Load: 32.7 t ADT: 410

TROUT RUN ROAD

Fair

Over: DEE RUN

3 SE MT.WOLF/DEE RUN, York, PA

Built 1975 Load: 32.7 t ADT: 410

KENNEDY ROAD

Fair

Over: TOMS RUN

1.6NW BRIDGETON/TOMS RUN, York, PA

Built 1920 Load: 32.7 t ADT: 75

N. GRANTHAM ROAD

Fair

Over: STONY RUN

1.3E N. GRANTHAM RD/STONY, York, PA

Built 1917 Load: 32.7 t ADT: 407

T-924; BULL ROAD

Fair

Over: STONEY RUN

1S LEWISBERRY/STONEY RUN, York, PA

Built 1975 Load: 32.7 t ADT: 400

T-924; BULL ROAD

Fair

Over: STONEY RUN

2 S.LEWISBERRY/STONEY RUN, York, PA

Built 1970 Load: 32.7 t ADT: 300

MONT ROAD

Fair

Over: BLYMIRE CREEK

1.6SSW WINTERTWN/BLYMIRE, York, PA

Built 1970 Load: 32.7 t ADT: 250

T689; GRAYDON ROAD

Fair

Over: EAST BRANCH CODORUS CR

2.5 LOGAVILL/E.B.CODORUS, York, PA

Built 1920 Load: 32.7 t ADT: 243

BEAVER CR RD; ADAM

Fair

Over: BEAVER CREEK

.6SE.BERLIN/BEAV.ADAMS 42, York, PA

Built 1915 Load: 32.7 t ADT: 298

BALTIMORE STREET

Fair

Over: S BR CODORUS CREEK

.3SE GLEN ROCK/S.BR.CODOR, York, PA

Built 1909 Load: 32.7 t ADT: 400

BARRENS CHURCH RD.

Fair

Over: TRIB N BR BERMUDIAN CRK

0.6 MI SW OF KRALLTOWN RD, York, PA

Built 1973 Load: 32.7 t ADT: 400

WESTMINSTER ROAD

Fair

Over: LONG ARM CREEK

HANOVER/ LONG ARM CR., York, PA

Built 1965 Load: 32.7 t ADT: 400

KINGS MILL ROAD

Fair

Over: TYLER RUN

KINGS MILL-TYLER R; YORK, York, PA

Built 1932 Load: 32.7 t ADT: 2,713

NEWBERRY STREET

Fair

Over: WILLIS RUN

N.YORK CITY/WILLIS RUN, York, PA

Built 1949 Load: 32.7 t ADT: 2,500

WATER STREET

Fair

Over: SO BRANCH CODORUS CREEK

S BR CDRS; GLEN ROCK BORO, York, PA

Built 1915 Load: 32.7 t ADT: 1,238

EISENHOWER DRIVE

Fair

Over: TR.S.BR.CONEWAGO CRK.

HANOVER BORO NORTH RIDGE, York, PA

Built 1991 Load: 32.7 t ADT: 10,000

CHARLES STREET

Fair

Over: PUBLIC LANDS

CHARLES ST OVER ABAN. RR, York, PA

Built 1923 Load: 32.7 t ADT: 4,000

INTERSTATE 95 N.B.

Fair

Over: RR;ACCESS RD;HOG ISLAND

ENTERPRISE AVE.RP.3699G09, Philadelphia, PA

Built 1971 Load: 32.7 t ADT: 73,611

INTERSTATE 95

Fair

Over: BROAD ST.NB&SBI-95RAMP A

BETW.JFK & NAVY YD3700B07, Philadelphia, PA

Built 1973 Load: 32.7 t ADT: 183,823

PENROSE AVENUE

Fair

Over: SCHUYLKILL RIVER & R.R.

GEORGE PLATT MEM. 3699G07, Philadelphia, PA

Built 1949 Load: 32.7 t ADT: 90,217

RHAWN STREET

Fair

Over: PENNYPACK CREEK

.7MI.N.FRANKFORD 3482E03, Philadelphia, PA

Built 1930 Load: 32.7 t ADT: 11,981

SPRING GARDEN STR.

Fair

Over: SCHUYLKILL EXPRESSWAY

SPRING GARDEN INCH3590A06, Philadelphia, PA

Built 1958 Load: 32.7 t ADT: 18,143

57th Street

Fair

Over: SEPTA

S of Baltimore - 27E13, Philadelphia, PA

Built 1905 Load: 32.7 t ADT: 5,500

RAMP D-DE S.B.OFF

Fair

Over: FRONT STREET RAMP E-DE

WALT WHITMAN BRG.3700F05, Philadelphia, PA

Built 1974 Load: 32.7 t ADT: 19,434

RAMP SV & RAMP VS

Fair

Over: RACE ST.;RAMP NFN

BEN FRANKLIN INTER3590H08, Philadelphia, PA

Built 1978 Load: 32.7 t ADT: 44,078

RAMP NV S.B. OFF

Fair

Over: SPRING GARDEN STREET

VINE ST INTERCH. 3590H07, Philadelphia, PA

Built 1975 Load: 32.7 t ADT: 15,019

RAMP B ON RAMP

Fair

Over: DIRT AND FILL

WALNUT TO 76EB 3590 A08, Philadelphia, PA

Built 1955 Load: 32.7 t ADT: 8,189

SOUTHBOUND COLL.DI

Fair

Over: OPEN GROUND(EARTH FILL)

BETSY ROSS INTERC.3481H10, Philadelphia, PA

Built 1975 Load: 32.7 t ADT: 15,799

HAHN ROAD

Fair

Over: PITTSBURGH INDUSTRIAL RR

NE OF CANONSBURG, Washington, PA

Built 1980 Load: 32.7 t ADT: 200

T-731 TANNER ROAD

Fair

Over: FRENCH CREEK

1500 EAST OF SR 0474, Erie, PA

Built 1997 Load: 32.7 t ADT: 30

CARVER STREET

Fair

Over: BROWNS CREEK

PLYMOUTH BORO CARVER ST, Luzerne, PA

Built 1951 Load: 32.7 t ADT: 3,134

T-335 (ELBON ROAD)

Fair

Over: BRANDY CAMP CREEK

500 FT EAST OF SR 219, Elk, PA

Built 1996 Load: 32.7 t ADT: 300

T-465 KENNEDY RD

Fair

Over: PA TPK (TOLL 43)

NORTH OF 43&70 INTER., Washington, PA

Built 1996 Load: 32.7 t ADT: 500

HILTON AVENUE

Fair

Over: BLACKSMITH RUN

500 FT SW OF LONG STREET, McKean, PA

Built 1995 Load: 32.7 t ADT: 100

SR 2006 MAIN ST

Fair

Over: READING BLUEMT& NORTHERN

DURYEA BORO JCT SR 2027, Luzerne, PA

Built 1998 Load: 32.7 t ADT: 9,718

BROOK LANE

Fair

Over: TRIB.FISH CREEK

.8MI W.JAMISION 3035-C10, Bucks, PA

Built 1986 Load: 32.7 t ADT: 203

SUNRISE WAY

Fair

Over: FISH CREEK

.5MI W.JAMISON 3035-D10, Bucks, PA

Built 1986 Load: 32.7 t ADT: 250

SR 4009

Fair

Over: DYBERRY CREEK

DYBERRY TWP .2 M W TR 191, Wayne, PA

Built 1999 Load: 32.7 t ADT: 960

T-351 Water St Ex

Fair

Over: LITTLE MILL CREEK

WATER ST. EXTENSION, Elk, PA

Built 1999 Load: 32.7 t ADT: 681

T-458 THOMPSONTOWN

Fair

Over: MUDDY CREEK

145 FT N of S.R. 4002, Butler, PA

Built 2000 Load: 32.7 t ADT: 100

SR0068

Fair

Over: BRUSH RUN

WILLIAMSBURG, Clarion, PA

Built 2000 Load: 32.7 t ADT: 4,646

RIVERVIEW RD

Fair

Over: LIZARD CREEK

0.4 MI S OF W.BOWMANSTOWN, Carbon, PA

Built 1904 Load: 32.7 t ADT: 350

ALLEGHENY RIVER BL

Fair

Over: ABANDONED RR

1 1/2 MILES E. OF PA 8, Allegheny, PA

Built 1931 Load: 32.7 t ADT: 22,731

ALLEGHENY RIVER BL

Fair

Over: ABANDONED RR

1 1/2 MILES E. OF PA 8, Allegheny, PA

Built 1931 Load: 32.7 t ADT: 22,731

BABYLON ROAD

Fair

Over: TRIBUTARY TO PARK CREEK

500 NE PA-463 3146-D8, Montgomery, PA

Built 2000 Load: 32.7 t ADT: 2,700

SAWYERS WAY

Fair

Over: PENNYPACK CREEK

NR NORRISTWWN RD 3258-G2, Montgomery, PA

Built 1995 Load: 32.7 t ADT: 1,000

T-576

Fair

Over: MILL CREEK

1.5 MI. W OF HUNTERSVILLE, Lycoming, PA

Built 1930 Load: 32.7 t ADT: 30

EAST PINE STREET

Fair

Over: TRIB TO MOUNTAIN CREEK

MR HOLLY SPRG/TRIB MTN CK, Cumberland, PA

Built 1914 Load: 32.7 t ADT: 500

Showing 5,051-5,100 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.