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

Wyoming Avenue

Fair

Over: CONRAIL (Abolished)

AT 2ND STREET, Philadelphia, PA

Built 1907 Load: 39.0 t ADT: 6,700

Wyoming Avenue

Fair

Over: Former Crse Frankford Cr

E. of Ramona St. 18F13, Philadelphia, PA

Built 1909 Load: 39.0 t ADT: 13,600

ON RAMP FROM UNIV.

Fair

Over: SCHUYLKILL TIDE WATER

UNIV.AVE.INTERCH. 3589K10, Philadelphia, PA

Built 1958 Load: 39.0 t ADT: 8,226

CHARTIERS STREET

Fair

Over: PGH AND OHIO RAILWAY

500 FT SOUTHEAST OF SR 50, Allegheny, PA

Built 1998 Load: 39.0 t ADT: 9,547

PA 402 (LR 220)

Fair

Over: BIG BUSHKILL CREEK

RESICA FALLS, Monroe, PA

Built 1999 Load: 39.0 t ADT: 1,630

T-345 DICKEY RD

Fair

Over: BLACK RUN

0.1 MI E OF W PARK RD, Butler, PA

Built 1999 Load: 39.0 t ADT: 100

T-316 NOGGLE ROAD

Fair

Over: OVER LITTLE SANDY CREEK

FRENCH CREEK TOWNSHIP, Venango, PA

Built 1999 Load: 39.0 t ADT: 50

US 30 EB; SR 0030

Fair

Over: PA 501; LITZ PK; LOOP C

US 30 EB OVER PA 501, Lancaster, PA

Built 2000 Load: 39.0 t ADT: 61,868

PA 97; SR 0097

Fair

Over: US 15; SR 0015

2.5 MI S.E. OF GETTYSBURG, Adams, PA

Built 2000 Load: 39.0 t ADT: 9,062

DRESHER ROAD

Fair

Over: PENNYPACK CREEK

NEAR 611 3258-J2, Montgomery, PA

Built 1967 Load: 39.0 t ADT: 10,500

MUSEUM ROAD

Fair

Over: WYOMISSING CREEK

READING MUSEUM, Berks, PA

Built 1930 Load: 39.0 t ADT: 4,000

CLEVELAND STREET

Fair

Over: MILL CREEK

1500 EAST OF MAYOCK ST, Luzerne, PA

Built 2010 Load: 39.0 t ADT: 800

T-328 FULLER DR

Fair

Over: RACCOON CREEK TRIB

700 FT E OF SR 0018, Washington, PA

Built 1972 Load: 39.0 t ADT: 50

T-677 Barnett Rd

Fair

Over: Unnamd Tr Quemahoning Ck

3 Mi S of Jennerstown, Somerset, PA

Built 1928 Load: 39.0 t ADT: 100

FRIENDSHIP LANE

Fair

Over: E. BR. WHITE CLAY CREEK

N. CLAY CREEK RD 3910D01, Chester, PA

Built 1990 Load: 39.0 t ADT: 250

Hoy Run Road

Fair

Over: Haynes Run

Perry Township, Greene, PA

Built 1901 Load: 39.0 t ADT: 50

WILSON STREET

Fair

Over: TRIB TO MANATAWNY CREEK

W OF FARMINGTON AVE, Montgomery, PA

Built 1970 Load: 39.0 t ADT: 5,000

MUDDY CREEK RD

Fair

Over: STONY RUN

NEAR HOMESTEAD RD, Lancaster, PA

Built 1993 Load: 39.0 t ADT: 100

PARADISE LANE

Fair

Over: LITTLE BEAVER CREEK

WITHIN 100 FT OF MOUNT PL, Lancaster, PA

Built 1993 Load: 39.0 t ADT: 200

Hillcrest Road

Fair

Over: Unami Creek

Milford 2806-H1, Bucks, PA

Built 1980 Load: 39.0 t ADT: 300

GOVERNOR PRINTZ BL

Fair

Over: DARBY CREEK

TINICUM TWP LINE 44D02, Delaware, PA

Built 1943 Load: 39.2 t ADT: 13,194

PA 611 (LR 168)

Fair

Over: POCONO CREEK

1 MI. N. OF BARTONSVILLE, Monroe, PA

Built 1957 Load: 39.2 t ADT: 12,938

HARDT ROAD

Fair

Over: PA TURNPIKE

SOUTH OF GIBSONIA, Allegheny, PA

Built 2006 Load: 39.5 t ADT: 3,421

RAMP E

Fair

Over: PARKING LOTS

SR 65 Marshall Ave. Inter, Allegheny, PA

Built 1971 Load: 39.5 t ADT: 1,482

TRENTON ROAD

Fair

Over: MILL CREEK

.2MI.EAST PA 413 42F01, Bucks, PA

Built 1957 Load: 39.5 t ADT: 8,758

T-625 MEADOW LANE

Fair

Over: BOW CREEK

GRANTVILLE, Dauphin, PA

Built 1952 Load: 39.5 t ADT: 250

PA 456 L. COVE RD

Fair

Over: LICKING CREEK

MASON DIXON LINE, Franklin, PA

Built 1967 Load: 39.5 t ADT: 465

T-359 FACTORY RD

Fair

Over: EAST LICKING CREEK

800 SOUTH OF SR 4002, Juniata, PA

Built 1985 Load: 39.5 t ADT: 75

PA 611(LR 48019SP)

Fair

Over: BUSHKILL CREEK

N.RIVERSIDE DR. EASTON, Northampton, PA

Built 1950 Load: 39.5 t ADT: 5,480

KELSO ROAD

Fair

Over: SR 22 EB WB

SR 3051 OVER SR 22, Allegheny, PA

Built 2011 Load: 39.5 t ADT: 899

T-544

Fair

Over: PA TPK (I-76)

West of Arona, Westmoreland, PA

Built 2011 Load: 39.5 t ADT: 200

ON TSR 433

Fair

Over: KETTLE CREEK

4 MI S GERMANIA, Potter, PA

Built 2014 Load: 39.5 t ADT: 78

BURNT MILL ROAD

Fair

Over: BURROWS RUN

NEAR ROSEDALE 48D8, Chester, PA

Built 2016 Load: 39.5 t ADT: 434

PA 94; SR 0094

Fair

Over: CONEWAGO CREEK

1.25 MI SE OF HAMPTON, Adams, PA

Built 1989 Load: 39.9 t ADT: 9,723

GREEN RIDGE ROAD

Fair

Over: CONEWAGO CREEK

1 E.HMPTN RDG/HMLTN CONWG, Adams, PA

Built 1957 Load: 39.9 t ADT: 110

SOUTH MAIN ST

Fair

Over: SAW MILL RUN

1200 SW OF W END CIRCLE, Allegheny, PA

Built 1900 Load: 39.9 t ADT: 7,071

EAST ST

Fair

Over: I-279(LR 1021-3)

137 East St Bridge, Allegheny, PA

Built 1986 Load: 39.9 t ADT: 2,000

RAYMOND E WILT HW

Fair

Over: MCALEER RD

1 MI. S.E. OF SR 0079, Allegheny, PA

Built 1988 Load: 39.9 t ADT: 21,528

SR 1002

Fair

Over: SR 9108

@ INT W/ SR 28 & FREEPORT, Allegheny, PA

Built 1965 Load: 39.9 t ADT: 9,474

PLUM AVE

Fair

Over: PLUM CREEK

OAKMONT VERONA LINE, Allegheny, PA

Built 1966 Load: 39.9 t ADT: 3,439

DONALDSON RD

Fair

Over: NORTH FORK ROBINSON RUN

@ N BRANCH RD (SR 3108), Allegheny, PA

Built 1975 Load: 39.9 t ADT: 1,957

EVERGREEN ROAD

Fair

Over: GIRTYS RUN

1044 S.W. OF SR 4004, Allegheny, PA

Built 1982 Load: 39.9 t ADT: 11,257

PA TPK (I-76)

Fair

Over: T-911

WEST OF PITTSBURGH INTG, Allegheny, PA

Built 1952 Load: 39.9 t ADT: 38,689

WOOD ST

Fair

Over: PINEY FORK CREEK

219003 SOUTH PARK TWP, Allegheny, PA

Built 1940 Load: 39.9 t ADT: 200

OAKWOOD RD

Fair

Over: PENSDALE ST OAKWOOD RUN

OK03 OAKWOOD RUN NO. 3, Allegheny, PA

Built 1984 Load: 39.9 t ADT: 3,700

PANTHER HOLLOW TR

Fair

Over: SCHENLEY PARK STREAM

087 Schenley Prk Hlw Trl1, Allegheny, PA

Built 1908 Load: 39.9 t ADT: 50

HAFNER ST

Fair

Over: PINE CREEK

430004 HAFNER ST BRIDGE, Allegheny, PA

Built 1955 Load: 39.9 t ADT: 100

BROUGHTON-COCHRANS

Fair

Over: LICK RUN

LC06 LICK RUN NO. 6, Allegheny, PA

Built 1989 Load: 39.9 t ADT: 4,660

NEW ENGLAND RD

Fair

Over: PINE RUN

PR04 PINE RUN NO. 4, Allegheny, PA

Built 1987 Load: 39.9 t ADT: 8,148

RAMP D

Fair

Over: P&OC RR & ROBINSON RUN

RAMP D OVER RR & CREEK, Allegheny, PA

Built 1967 Load: 39.9 t ADT: 2,856

Showing 7,601-7,650 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.