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

BUSTLETON AVENUE

Fair

Over: PENNYPACK CREEK

2MILES S.WELSH RD.3372C08, Philadelphia, PA

Built 1969 Load: 33.6 t ADT: 22,473

WELSH ROAD

Fair

Over: PAULS RUN

AT ALBURGER AVENUE3372C06, Philadelphia, PA

Built 1968 Load: 33.6 t ADT: 14,386

GRANT AVENUE

Fair

Over: BYBERRY CREEK

.25MI.N.FRANKFORD 3483A01, Philadelphia, PA

Built 1963 Load: 33.6 t ADT: 12,116

WALNUT STREET

Fair

Over: SCHUYLKILL 24TH RR 32 31

CENTER CITY PHILA. 3590A8, Philadelphia, PA

Built 1892 Load: 33.6 t ADT: 14,793

ELMWOOD AVENUE

Fair

Over: SEPTA AIRPORT H S LINE

NEAR 60TH STREET 3699E02, Philadelphia, PA

Built 1983 Load: 33.6 t ADT: 3,671

SCHUYLKILL AV WEST

Fair

Over: SCHUYLKILL EXPWY RAMP J

NE.CORNER 30TH ST.3590A08, Philadelphia, PA

Built 1932 Load: 33.6 t ADT: 16,548

McCallum Street

Fair

Over: Cresheim Creek 3479-H2

NW of Allens Lane, Philadelphia, PA

Built 1985 Load: 33.6 t ADT: 9,800

Rockland Street

Fair

Over: CONRAIL(Abandoned)

E of 7th Street, Philadelphia, PA

Built 1908 Load: 33.6 t ADT: 2,800

Thomas Avenue

Fair

Over: SEPTA

S of Baltimore - 27F13, Philadelphia, PA

Built 1910 Load: 33.6 t ADT: 4,200

RAMP H TO I-76 WB

Fair

Over: RAMP J TO I-676 EB

VINE ST.INTERCH. 3590 B07, Philadelphia, PA

Built 1958 Load: 33.6 t ADT: 25,324

T-362 WEST VALLEY

Fair

Over: ROBBIN BROOK

1500 S OF CROSBY CROSS, McKean, PA

Built 1996 Load: 33.6 t ADT: 50

SR 120-PA 120

Fair

Over: N & S/NIT AND BALD EAGLE

CITY OF LOCK HAVEN, Clinton, PA

Built 1980 Load: 33.6 t ADT: 3,294

SR0079

Fair

Over: SR 1041

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1999 Load: 33.6 t ADT: 26,014

T-552 CHRISTY ROAD

Fair

Over: BULL CREEK

300 FT SOUTH OF T-483, Butler, PA

Built 1998 Load: 33.6 t ADT: 100

WATER STREET

Fair

Over: COPLAY CREEK

BET. LEHIGH & EBERHART RD, Lehigh, PA

Built 1941 Load: 33.6 t ADT: 390

Blvd Al.Ramp

Fair

Over: 1st Ave 2nd Ave Local

Blvd.of Alies to Lib. Br, Allegheny, PA

Built 1928 Load: 33.6 t ADT: 1,259

SPRINGTON ROAD

Fair

Over: INDIAN RUN CREEK

1.5 MI. RTE 82 3360E8, Chester, PA

Built 2010 Load: 33.6 t ADT: 1,513

TAYLOR ROAD

Fair

Over: BR. OF NESHAMINY CREEK

.16 MI. W. RTE309 3032K10, Montgomery, PA

Built 1980 Load: 33.6 t ADT: 2,010

BARTON DRIVE

Fair

Over: BRANCH OF FRENCH CREEK

NE of Penn Dr 3251B4, Chester, PA

Built 1990 Load: 33.6 t ADT: 325

WENDLER CIRCLE

Fair

Over: Unnamed Trib Schuylkill

E of Hanover St 3138F4, Chester, PA

Built 2000 Load: 33.6 t ADT: 200

Bollinger Road

Fair

Over: Perkins Run

NW of Creek Rd 403359J2, Chester, PA

Built 1914 Load: 33.6 t ADT: 300

Waterloo Blvd.

Fair

Over: Br.of Valley Creek

W of Kimberwyck Ln 3472J5, Chester, PA

Built 1990 Load: 33.6 t ADT: 3,200

HOCKLE ROAD

Fair

Over: MINE RUN

N OF MINE RUN RD, Montgomery, PA

Built 1970 Load: 33.6 t ADT: 1,000

BUCKWALTER ROAD

Fair

Over: TRIB TO MINGO CREEK

E OF OLD MILL RD, Montgomery, PA

Built 1996 Load: 33.6 t ADT: 250

PORTLAND RD

Fair

Over: GULPH CREEK

N OF BALLIGOMINGO 3367H9, Montgomery, PA

Built 1970 Load: 33.6 t ADT: 750

LITTLE BEAVER RD

Fair

Over: LITTLE BEAVER CK

BRIDGE 450 YD WEST OF BIS, Lancaster, PA

Built 1992 Load: 33.6 t ADT: 100

RADIO RD

Fair

Over: CONOY CREEK

0.4 MI N OF E. HIGH ST, Lancaster, PA

Built 1990 Load: 33.6 t ADT: 800

MESHOPPEN CREEK RD

Fair

Over: TRIB TO MESHOPPEN CREEK

Located south of SR 2024, Susquehanna, PA

Built 1964 Load: 33.6 t ADT: 30

ALDEN AVENUE

Fair

Over: ROCK RUN

3152-A8, Bucks, PA

Built 1962 Load: 33.7 t ADT: 1,360

BRINTON LAKE ROAD

Fair

Over: WEST BR OF CHESTER CREEK

1MI.N.US 1 32A09/3694-D7, Delaware, PA

Built 1969 Load: 33.7 t ADT: 6,306

SR 3015;Guitner Rd

Fair

Over: Conococheague Creek

1 Mi. SW of Marion, Franklin, PA

Built 1954 Load: 33.7 t ADT: 591

SR 4016 (LR 175)

Fair

Over: LEHIGH RIVER

SLATINGTON-WALNUTPORT, Lehigh, PA

Built 1969 Load: 33.7 t ADT: 11,151

SR 2008

Fair

Over: WOLF RUN

3 MILES NORTH EAST WAGNER, Mifflin, PA

Built 1954 Load: 33.7 t ADT: 357

Oak Grove Road

Fair

Over: Pond Creek

Intersection with Rt. 209, Monroe, PA

Built 2010 Load: 33.7 t ADT: 200

ALMSHOUSE ROAD

Fair

Over: LITTLE NESHAMINY CREEK

WARWICK TWP. 30A12, Bucks, PA

Built 1963 Load: 34.0 t ADT: 9,288

T-620 COUNTY BR#49

Fair

Over: CATAWISSA CREEK

2.5 MI SE SHUMANS, Columbia, PA

Built 1959 Load: 34.0 t ADT: 80

DAGUE BRIDGE

Fair

Over: PIGEON CREEK trib

500 WEST OF TR 766, Washington, PA

Built 1938 Load: 34.0 t ADT: 200

I-76

Fair

Over: BROAD STREET

BROAD ST OVERPASS 37E06, Philadelphia, PA

Built 1957 Load: 34.0 t ADT: 80,588

SR 0310

Fair

Over: LITTLE ELK CREEK

1.5 MI N SR 119 INTER., Jefferson, PA

Built 2013 Load: 34.0 t ADT: 2,744

N-FLAUGHERTY-RN RD

Fair

Over: BOGGS RUN

213001 N FLAUGHERTY RN RD, Allegheny, PA

Built 1960 Load: 34.3 t ADT: 100

PARK ACCESS RD

Fair

Over: BRADY RUN (S BRANCH)

004009 BRADYS RUN PARK, Beaver, PA

Built 1856 Load: 34.3 t ADT: 55

10TH STREET

Fair

Over: BRUSH RUN

10TH ST @ BRUSH RUN, Blair, PA

Built 1976 Load: 34.3 t ADT: 1,151

DORLAN MILL ROAD

Fair

Over: EAST BR BRANDYWINE CREEK

AT 282 INTERSECT. 20E7, Chester, PA

Built 1931 Load: 34.3 t ADT: 3,237

SR 2005 SHAWS LAND

Fair

Over: OVER CONNEAUT CREEK

UNION TOWNSHIP, Crawford, PA

Built 1962 Load: 34.3 t ADT: 854

TREWIGTOWN ROAD

Fair

Over: TRIB.NESHAMINY CREEK

.60MI NE OF SR463 3032-H7, Montgomery, PA

Built 1975 Load: 34.3 t ADT: 2,610

SR 5 EAST LAKE RD.

Fair

Over: OVER SIXTEEN MILE CREEK

NORTH EAST TOWNSHIP, Erie, PA

Built 2001 Load: 34.3 t ADT: 1,410

T-344 NEWCOMER RD

Fair

Over: CHIQUES CREEK

3/4 MI WEST OF SR 4001, Lancaster, PA

Built 2011 Load: 34.3 t ADT: 600

T-388 DEPOT ST

Fair

Over: S BR KNAPP CREEK

300 FT N OF PA 246, McKean, PA

Built 1960 Load: 34.3 t ADT: 20

SR 2006

Fair

Over: SOUTH BR CONEWAGO CR

1 MI N MCSHERRYSTOWN, Adams, PA

Built 1963 Load: 34.5 t ADT: 4,603

SR 2014

Fair

Over: PINEY CREEK

1 MI. E. OF KINGSDALE, Adams, PA

Built 1963 Load: 34.5 t ADT: 771

Showing 5,601-5,650 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.