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

GERMANTOWN AVENUE

Fair

Over: CSX (LOW FREIGHT LINE)

AT WINDRIM AVE. 3480E07, Philadelphia, PA

Built 1914 Load: 36.3 t ADT: 8,262

LEVERINGTON AVENUE

Fair

Over: MANAYUNK CANAL NSRC

MANAYUNK 3479-D6, Philadelphia, PA

Built 1929 Load: 36.3 t ADT: 3,000

Gravers Lane

Fair

Over: SEPTA

E of Anderson Street17A02, Philadelphia, PA

Built 1906 Load: 36.3 t ADT: 2,800

RAMP VS

Fair

Over: INTERSTATE 95(SB)SEPTA

I-95 AT VINE STR. 3590H08, Philadelphia, PA

Built 1989 Load: 36.3 t ADT: 19,323

ON RMP.A TO 76 WB

Fair

Over: REED STREET;SIDE STREET

S.GRAYS FERRY AV. 3699J01, Philadelphia, PA

Built 1956 Load: 36.3 t ADT: 6,240

RAMP A OFF RAMP

Fair

Over: LEFEVRE ST. AND CONRAIL

ARAMINGO AVE.EXIT 3481H10, Philadelphia, PA

Built 1966 Load: 36.3 t ADT: 10,141

SCHUYLKILL AV.WEST

Fair

Over: SCHUYLKILL EXPRESSWAY

BTW.CHESTNUT/WANUT3590A08, Philadelphia, PA

Built 1959 Load: 36.3 t ADT: 8,442

WATER STREET

Fair

Over: TWO MILE RUN

600 FT NW OF US 6, McKean, PA

Built 1995 Load: 36.3 t ADT: 150

PA 29(LR 158)

Fair

Over: LEIBERT CREEK

0.1MI.N.OF PA TURNPIKE, Lehigh, PA

Built 1997 Load: 36.3 t ADT: 22,023

SR 103-PA 103

Fair

Over: KISHACOQUILLAS CREEK

LEWISTOWN BORO, Mifflin, PA

Built 1958 Load: 36.3 t ADT: 5,828

AMOS BRIDGE

Fair

Over: PIGEON CREEK trib

300 SOUTH OF TWP RD 449, Washington, PA

Built 1903 Load: 36.3 t ADT: 150

SR 0079

Fair

Over: SR 1041

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1999 Load: 36.3 t ADT: 26,204

STATE STREET

Fair

Over: LOBBS RUN

440001 AT FLOREFFE VFD, Allegheny, PA

Built 1999 Load: 36.3 t ADT: 500

BLAIRS VALLEY ROAD

Fair

Over: BRANCH OF LICKING CREEK

5.5 MI. S.OF MERCERSBURG, Franklin, PA

Built 1991 Load: 36.3 t ADT: 750

EASTER ROAD

Fair

Over: IRISH CREEK

1 MILE WEST OF MOHRSVILLE, Berks, PA

Built 1980 Load: 36.3 t ADT: 90

T-666 BARKS HILL

Fair

Over: SOUTH BRANCH PLUM CREEK

1500 feet s. of SR 4009, Armstrong, PA

Built 2001 Load: 36.3 t ADT: 140

FRANKLIN ROAD

Fair

Over: PA TURNPIKE

500 FT N OF WARRENDALE RD, Allegheny, PA

Built 2006 Load: 36.3 t ADT: 4,302

SR 3015 LEXINGTON

Fair

Over: I-90 EB & WB

GIRARD TOWNSHIP, Erie, PA

Built 2008 Load: 36.3 t ADT: 635

SR 2019; TWP RD

Fair

Over: BEAVER CREEK

NEW PROVIDENCE, Lancaster, PA

Built 2011 Load: 36.3 t ADT: 1,969

SR 1009

Fair

Over: BERMUDIAN CREEK

2 MI. N.E. OF HEIDLERSBRG, Adams, PA

Built 2011 Load: 36.3 t ADT: 420

Remington Road

Fair

Over: East Branch Indian Creek

.3 Mi NE US-30 3588-H1, Montgomery, PA

Built 1946 Load: 36.3 t ADT: 6,980

Becks Run Road

Fair

Over: Flaugherty Run

70 fr Flaugherty Run Rd, Allegheny, PA

Built 1998 Load: 36.3 t ADT: 50

MAIDEN LANE

Fair

Over: SAW MILL RUN

0.1MI E SHEFFIELD DR, Montgomery, PA

Built 1985 Load: 36.3 t ADT: 100

MUD ROAD T-460

Fair

Over: IDLEWILD CREEK

1/4 MI NE OF RT 106, Susquehanna, PA

Built 1989 Load: 36.3 t ADT: 50

Johns Way

Fair

Over: Branch of Pine Run

Buckingham2923-C6, Bucks, PA

Built 1990 Load: 36.3 t ADT: 100

SEVENTH STREET BR

Fair

Over: ALLEGH RIV 10 ST BY-PASS

AL03 7TH ST BRIDGE, Allegheny, PA

Built 1926 Load: 36.6 t ADT: 9,900

SR 2077(147 SP)

Fair

Over: SCHUYLKILL RIVER

DOUGLASSVILLE BRIDGE, Berks, PA

Built 1951 Load: 36.6 t ADT: 4,496

T-331 BROWNTOWN RD

Fair

Over: E BR TUNUNGWANT CREEK

1000 FT EAST OF SR 219, McKean, PA

Built 1955 Load: 36.6 t ADT: 70

TOWNSHIP LINE ROAD

Fair

Over: STONY CREEK / 3255-J5

NORTH NORRISTOWN 3255-J05, Montgomery, PA

Built 1933 Load: 36.6 t ADT: 9,231

PA 849;CREEK RD.

Fair

Over: BUFFALO CREEK

NEAR MARKELSVILLE, Perry, PA

Built 1934 Load: 36.6 t ADT: 306

VAN VOORHIS BRIDGE

Fair

Over: PIGEON CREEK

150 EAST OF SR 481, Washington, PA

Built 1942 Load: 36.6 t ADT: 40

PA 865

Fair

Over: NORFOLK STN RR MAIN ST

BELLWOOD BORO, Blair, PA

Built 2002 Load: 36.6 t ADT: 4,370

T-331

Fair

Over: COWLEY RUN

2000 FT NORTH WEST PA 155, Cameron, PA

Built 2006 Load: 36.6 t ADT: 345

SR 0068

Fair

Over: SUGAR CREEK

0.6 Mi W SR 4002 Inter., Armstrong, PA

Built 2015 Load: 36.6 t ADT: 2,617

Hickory Grade Rd

Fair

Over: SR 576(Southern Beltway)

MP 17.97 on Rt. 576, Allegheny, PA

Built 2019 Load: 36.6 t ADT: 250

PA 645(LR 06004)

Fair

Over: TRIB.CROSSKILL CREEK

CAMP SWATARA ROAD, Berks, PA

Built 1958 Load: 36.9 t ADT: 1,673

SR 4012 (LR 06162)

Fair

Over: MILL CREEK

HOST CHURCH ROAD, Berks, PA

Built 1938 Load: 36.9 t ADT: 486

SR 3003

Fair

Over: OVER ROARING CREEK

4 MI SW OF CATAWISSA BORO, Columbia, PA

Built 1950 Load: 36.9 t ADT: 425

PA 433;Rowe Run Rd

Fair

Over: Rowe Run

2 Mi. SE of Orrstown Boro, Franklin, PA

Built 1937 Load: 36.9 t ADT: 1,008

SR 0106 TR 106

Fair

Over: DUNDAFF CREEK

GRNFIELD TP 2.2 M W TR247, Lackawanna, PA

Built 1959 Load: 36.9 t ADT: 1,543

SR 1030

Fair

Over: COCALICO CREEK

0.5 MI.N.E. OF REMANSTOWN, Lancaster, PA

Built 1962 Load: 36.9 t ADT: 922

SR 3002

Fair

Over: KISHACOQUILLAS CREEK

LEWISTOWN BORO, Mifflin, PA

Built 1958 Load: 36.9 t ADT: 8,101

S.R. 45

Fair

Over: CHILLISQUAQUE CREEK

5.0 MI E OF MONTANDON, Northumberland, PA

Built 1952 Load: 36.9 t ADT: 3,722

LINDBERGH BLVD.

Fair

Over: CSX RAILROAD

NXT TO BARTRAMS PK3699F01, Philadelphia, PA

Built 1902 Load: 36.9 t ADT: 8,691

BABCOCK CREEK ROAD

Fair

Over: BABCOCK CREEK

1.4 MI. NE OF LOST TURKEY, Somerset, PA

Built 2018 Load: 36.9 t ADT: 25

PA 34; SR 0034

Fair

Over: TRIB TO QUAKER RUN

2.5 MI.N. OF BIGLERVILLE, Adams, PA

Built 1932 Load: 37.2 t ADT: 4,598

I 279 SB

Fair

Over: CAMP HORNE RD

I-279 S.B. OVER SR 4021, Allegheny, PA

Built 1988 Load: 37.2 t ADT: 21,278

PARKWAY EAST

Fair

Over: SECOND AVE

EB OVER SECOND AVENUE, Allegheny, PA

Built 1953 Load: 37.2 t ADT: 33,352

GIBSONIA RD

Fair

Over: MONTOUR RUN

@ INTER. W/ TWP. RD. 828, Allegheny, PA

Built 1940 Load: 37.2 t ADT: 9,379

BRINTON ROAD

Fair

Over: SR 0376 EB WB

BRINTON RD.OVER 376 EB WB, Allegheny, PA

Built 1950 Load: 37.2 t ADT: 6,520

Showing 6,701-6,750 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.