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

HIGHLAND PARK APPR

Fair

Over: SR 0008

Highland Park Bridge, Allegheny, PA

Built 1940 Load: 44.5 t ADT: 45,620

Grove Rd

Fair

Over: Saw Mill Run

Grove Rd & Rt 88, Allegheny, PA

Built 2010 Load: 44.5 t ADT: 9,131

T-330 ROBINHOOD DR

Fair

Over: COAL RUN

0.4 MI NW of SR 3020, Butler, PA

Built 1901 Load: 44.5 t ADT: 100

GODSHALL ROAD

Fair

Over: LODAL CREEK

1.2MI NW OF SR29 3141-E4, Montgomery, PA

Built 2012 Load: 44.5 t ADT: 250

Foxburg Road

Fair

Over: Rasler Run

Springfield Twp., Fayette, PA

Built 1980 Load: 44.5 t ADT: 25

Clay Road

Fair

Over: Washington Run

South of Perryopolis, Fayette, PA

Built 1935 Load: 44.5 t ADT: 150

Forsythia Crossing

Fair

Over: Mill Creek

Forsythia Gate 3262-J6, Bucks, PA

Built 1960 Load: 44.5 t ADT: 1,000

Park Blvd T-588

Fair

Over: Hershey Park Access Road

Hershey park Access, Dauphin, PA

Built 2001 Load: 44.5 t ADT: 9,351

T-676 JUVA VALLEY

Fair

Over: UNKNOWN CREEK

AT INT W/T-529, Erie, PA

Built 1980 Load: 44.5 t ADT: 45

TRYTHALL ROAD

Fair

Over: FRENCH CREEK

S Harmonyville Rd 3248K1, Chester, PA

Built 1960 Load: 44.5 t ADT: 200

MILL ROAD

Fair

Over: HONEY BROOK BRANCH

S of walnut Rd 3358A7, Chester, PA

Built 1988 Load: 44.5 t ADT: 400

WILLIAMSBURG BLVD.

Fair

Over: BR. BRANDYWINE CREEK

Nof Norwood Rd 3471J5, Chester, PA

Built 1990 Load: 44.5 t ADT: 1,000

FOX TRAIL ROAD

Fair

Over: BRANCH BRANDYWINE CREEK

N Sawmill Rd 3581-G4, Chester, PA

Built 1990 Load: 44.5 t ADT: 150

SHERBROOK BLVD

Fair

Over: NAYLORS RUN

UNDER SHERBROOK BLVD, Delaware, PA

Built 1941 Load: 44.5 t ADT: 5,000

GLICK RD

Fair

Over: LITTLE CONESTOGA CREEK

SOUTH OF VALLEY VIEW RD, Lancaster, PA

Built 1901 Load: 44.5 t ADT: 100

BEAVER DAM RD

Fair

Over: TRIB TO PEQUEA CREEK

NORTH OF GUY RD, Lancaster, PA

Built 1988 Load: 44.5 t ADT: 100

TR601 WALLERVILLE

Fair

Over: FACTORY CREEK

50FT W SR 191 - WALLERVIL, Wayne, PA

Built 1984 Load: 44.5 t ADT: 15

N.MAIN & W.STEERS

Fair

Over: OVER MILL RUN

N.MAIN ST. MEADVILLE, Crawford, PA

Built 1916 Load: 45.0 t ADT: 2,500

T313 WALNUT GROVE

Fair

Over: SIDELING HILL CREEK

1 MI.NW.OF MADDENSVILLE, Huntingdon, PA

Built 1946 Load: 45.0 t ADT: 100

I-81 NB

Fair

Over: TWP RD 351 SUNSET DRIVE

I-81 NB OVER TWP RD 351, Luzerne, PA

Built 1963 Load: 45.0 t ADT: 26,655

HITE RD

Fair

Over: SR 0028 NB SB

0.7 MI. N.E.OF TURNPIKE, Allegheny, PA

Built 1970 Load: 45.3 t ADT: 9,296

SR 3006

Fair

Over: TRIB MARSH CREEK

1 MI.E. OF GREENMOUNT, Adams, PA

Built 1986 Load: 45.4 t ADT: 587

OLD MILL RD; T-546

Fair

Over: PINE RUN

1.5 NE ABBOTTSTN/PINE RUN, Adams, PA

Built 1993 Load: 45.4 t ADT: 75

FREEPORT RD

Fair

Over: S.OAKHILL Rd.& SQUAW RUN

AT BLAWNOX INTERCHANGE, Allegheny, PA

Built 1965 Load: 45.4 t ADT: 31,110

ALLEGHENY VAL EXPY

Fair

Over: GUYS RUN ROAD (SR 1011)

0.7 MI SW OF SR 0910, Allegheny, PA

Built 1971 Load: 45.4 t ADT: 24,013

SR 0051 NB SB

Fair

Over: SAW MILL RUN

NEAR EDGEBROOK AVE, Allegheny, PA

Built 1941 Load: 45.4 t ADT: 37,206

SR 376 WB RAMP B

Fair

Over: LR1039 RP A(F) MON RIVER

Fort Pitt Bridge, Allegheny, PA

Built 1958 Load: 45.4 t ADT: 40,589

GIBSONIA RD

Fair

Over: BRANCH OF DEER CREEK

200 SOUTH OF SR 1024, Allegheny, PA

Built 1960 Load: 45.4 t ADT: 4,024

THOMPSON RUN RD

Fair

Over: THOMPSON RUN

OVER THOMPSON RUN, Allegheny, PA

Built 1951 Load: 45.4 t ADT: 7,846

HOV

Fair

Over: NS RR Ramps E. Ohio St

Veterans Bridge, Allegheny, PA

Built 1988 Load: 45.4 t ADT: 1,550

RAMP E&H

Fair

Over: SR2048 & I-376RP

TURNPK RMP.EH O/ SR2048, Allegheny, PA

Built 1999 Load: 45.4 t ADT: 5,000

RAMP EP-W RD

Fair

Over: RAMP EP-E(NORTH)

OPA109 AP05 AIRPORT 10-1, Allegheny, PA

Built 1992 Load: 45.4 t ADT: 5,055

RAMP EP-W RD

Fair

Over: RAMP EP-E(SOUTH)

OPA110 AP06 AIRPORT 10-2, Allegheny, PA

Built 1992 Load: 45.4 t ADT: 5,566

SOUTH PIONEER RD

Fair

Over: CROUSE RUN

207004 CROUSE RUN NO 7, Allegheny, PA

Built 2003 Load: 45.4 t ADT: 500

FORBES AV

Fair

Over: CSX RR BOUNDARY ST

034 Forbes Ave Bridge, Allegheny, PA

Built 1900 Load: 45.4 t ADT: 8,014

MCARDLE RDWY RD

Fair

Over: HILLSIDE

054 PJ McArdle Rdwy Bridg, Allegheny, PA

Built 1929 Load: 45.4 t ADT: 11,000

CHURCH AV

Fair

Over: SPRUCE RUN TRIB

P50003 BEN AVON BRDG-PT04, Allegheny, PA

Built 1995 Load: 45.4 t ADT: 10,119

HEMLOCK HOLLOW RD

Fair

Over: SYCAMORE RUN

432002 0.1 MI N/ HUNT RD, Allegheny, PA

Built 1950 Load: 45.4 t ADT: 5,000

RIDING MEADOW ROAD

Fair

Over: SYCAMORE RUN

432004 0.5 MI N/ HHR, Allegheny, PA

Built 1950 Load: 45.4 t ADT: 1,041

SR0839

Fair

Over: PINE RUN

NEAR EDDYVILLE, Armstrong, PA

Built 1964 Load: 45.4 t ADT: 358

I-376

Fair

Over: CSX RR PRIVATE ROAD

SHELL PLANT BRIDGE, Beaver, PA

Built 1970 Load: 45.4 t ADT: 30,370

LR 482 SR 0065

Fair

Over: PA TPK (I-76)

EAST OF BEAVER VAL INTG, Beaver, PA

Built 1952 Load: 45.4 t ADT: 7,150

ELEVENTH AVENUE ET

Fair

Over: BLOCKHOUSE RUN

423006 100 YD / 13 ST INT, Beaver, PA

Built 1905 Load: 45.4 t ADT: 50

RAMP AD

Fair

Over: SR 0051

SR 68/51 INTERCHANGE, Beaver, PA

Built 1955 Load: 45.4 t ADT: 7,723

SR 1020

Fair

Over: RAYSTOWN BR.JUNIATA RIV.

1.3 MILE EAST OF CYPHER, Bedford, PA

Built 1937 Load: 45.4 t ADT: 82

SR 2017

Fair

Over: SWAMP RUN

405 FEET SOUTH OF SR 2014, Bedford, PA

Built 1939 Load: 45.4 t ADT: 180

SR 4027

Fair

Over: SCRUBGRASS CREEK

2 MI.S.OF QUEEN, Bedford, PA

Built 1962 Load: 45.4 t ADT: 325

SR2089 NB(LR 1011)

Fair

Over: PA TURNPIKE EAST-WEST

PA TURNPIKE UNDER SR2089, Berks, PA

Built 1962 Load: 45.4 t ADT: 3,663

SR501 (PA501)

Fair

Over: TRIB.SWATARA CREEK

2 MI.S.OF BETHEL, Berks, PA

Built 1928 Load: 45.4 t ADT: 6,200

PA 662 (LR 06069)

Fair

Over: LITTLE MANATAWNY CREEK

0.4 MI.S.OF OLEY, Berks, PA

Built 1962 Load: 45.4 t ADT: 5,098

Showing 9,301-9,350 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.