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

BALTIMORE ST.

Fair

Over: SO.BRANCH CODORUS CREEK

.1 MILE S OF GLEN ROCK, York, PA

Built 1938 Load: 29.0 t ADT: 2,140

ROCKVILLE RD.

Fair

Over: PIERCEVILLE RUN

1 MI.W. OF GLEN ROCK, York, PA

Built 1930 Load: 29.0 t ADT: 280

OLD CHURCH ROAD

Fair

Over: KREUTZ CREEK

HALLAM EXIT/KREUTZ CREEK, York, PA

Built 1940 Load: 29.0 t ADT: 200

SUSQUEHANNA TRAIL

Fair

Over: LITTLE CONEWAGO CREEK

@ZIONS VIEW/LITTLE CONEWG, York, PA

Built 1925 Load: 29.0 t ADT: 5,201

T904 LISBURN ROAD

Fair

Over: BEAVER CREEK

BEAVER CR. WARRINGTON TWP, York, PA

Built 1917 Load: 29.0 t ADT: 541

N. BEAVER STREET

Fair

Over: WILLIS RUN

BEAVER ST;WILLIS RUN Y.CO, York, PA

Built 1953 Load: 29.0 t ADT: 1,500

SCHUYLKILL EXPWAY.

Fair

Over: GRAYS FERRY AVE.TO 34TH

UNIV.CITY AVE. 3699J01, Philadelphia, PA

Built 1956 Load: 29.0 t ADT: 62,903

I-95DOUBLE DECKER

Fair

Over: SCHUYLKILL RIVER RR ROAD

GIRARD POINT BRD. 3699J08, Philadelphia, PA

Built 1973 Load: 29.0 t ADT: 183,823

INTERSTATE 95

Fair

Over: QUEEN STREET

NEAR PENNS LAND.3700G01, Philadelphia, PA

Built 1971 Load: 29.0 t ADT: 104,503

DELAWARE EXPWAY.

Fair

Over: PALMER-CUMBERLAND STRS.

NEAR CUMBERLAND ST3590K05, Philadelphia, PA

Built 1971 Load: 29.0 t ADT: 163,638

DELAWARE EXPWAY.

Fair

Over: FRANKFORD CREEK

NR.LUZERNE ST. 3591G01, Philadelphia, PA

Built 1968 Load: 29.0 t ADT: 158,822

BARTRAM AVE(NB)ON

Fair

Over: SLUDGE LAGOONS

NORTH PLATT BRG. 3699E08, Philadelphia, PA

Built 1985 Load: 29.0 t ADT: 11,725

UNIVERSITY AVENUE

Fair

Over: SCHUYLKILL RIV; I-76 WB

UNIVERSITY AVE. 3589J10, Philadelphia, PA

Built 1929 Load: 29.0 t ADT: 26,627

RELOCATED PENROSE

Fair

Over: RAMP V OFF TO PLATT BRDG

N.PLATT BRIDGE 3699D08, Philadelphia, PA

Built 1985 Load: 29.0 t ADT: 42,558

17th Street

Fair

Over: Penn Ctr Undgrd St Sys

N of Market Street 28E12, Philadelphia, PA

Built 1957 Load: 29.0 t ADT: 10,100

NORTHBOUND COLL.DI

Fair

Over: OPEN GROUND(EARTH FILL)

BETSY ROSS ITERC. 3481H10, Philadelphia, PA

Built 1975 Load: 29.0 t ADT: 15,861

RAMP X S.B.ON RAMP

Fair

Over: EARTH FILL

BESTY ROSS INTERC.3591G01, Philadelphia, PA

Built 1975 Load: 29.0 t ADT: 15,799

SR0128

Fair

Over: ALLEGHENY RIV / B&P RR

FORD CITY VETERANS, Armstrong, PA

Built 2000 Load: 29.0 t ADT: 2,677

PA 724 SHILLINGTON

Fair

Over: US 222

SHILLINGTON ROAD, Berks, PA

Built 2000 Load: 29.0 t ADT: 12,241

SR 1043

Fair

Over: Norfolk Sothern Railway

DERRY TOWNSHIP, Westmoreland, PA

Built 2002 Load: 29.0 t ADT: 1,942

FOWLER HOLLOW ROAD

Fair

Over: FOWLER HOLLOW RUN

FOWLERS HOLLOW STATE PARK, Perry, PA

Built 1988 Load: 29.0 t ADT: 30

DRAKES CREEK ROAD

Fair

Over: DRAKES CREEK

1.7 MI W OF SCHOOL HOUSE, Carbon, PA

Built 1965 Load: 29.0 t ADT: 5

Morrow St

Fair

Over: Trib of Chartiers Cr

1 mile north of Glendale, Allegheny, PA

Built 1973 Load: 29.0 t ADT: 150

Hirsch Rd

Fair

Over: Tubmill Creek

350 South of SR 1006, Westmoreland, PA

Built 2012 Load: 29.0 t ADT: 50

Hoke Road

Fair

Over: Latta Run

East of Hammondville, Fayette, PA

Built 1965 Load: 29.0 t ADT: 150

T-317

Fair

Over: Crooked Run

Dunkard TWP, Greene, PA

Built 1940 Load: 29.0 t ADT: 50

Trouttown Road

Fair

Over: Sewickley Creek

500 NE of T-748, Westmoreland, PA

Built 2016 Load: 29.0 t ADT: 708

SR 4004

Fair

Over: BILLINGS CREEK

BLM GRV TWP .2M W SR739, Pike, PA

Built 2010 Load: 29.0 t ADT: 318

WHEATSTONE DRIVE

Fair

Over: TRIBUTARY TO SPRING CR.

0.3 MILE EAST OF SR 3017, Lebanon, PA

Built 2000 Load: 29.0 t ADT: 200

Golden Gate Drive

Fair

Over: Stream

Richland 2695-C8, Bucks, PA

Built 1970 Load: 29.0 t ADT: 300

Mill Creek Parkway

Fair

Over: Mill Creek

Bristol 3263-F7, Bucks, PA

Built 1950 Load: 29.0 t ADT: 2,000

Water Avenue

Fair

Over: Unknown Creek

Falls 3263-J5, Bucks, PA

Built 1950 Load: 29.0 t ADT: 400

Exit Lane

Fair

Over: Unknown Creek

Falls 3263-H4, Bucks, PA

Built 1950 Load: 29.0 t ADT: 400

Birch Drive

Fair

Over: Unknown Creek

Falls 3263-H4, Bucks, PA

Built 1950 Load: 29.0 t ADT: 500

Wood Lane

Fair

Over: Unknown Creek

Falls 3263-H5, Bucks, PA

Built 1950 Load: 29.0 t ADT: 300

Overbrook Lane

Fair

Over: Mill Creek

Bristol 3263-F7, Bucks, PA

Built 1950 Load: 29.0 t ADT: 250

Oak Tree Pass

Fair

Over: Mill Creek

Bristol 3263-F6, Bucks, PA

Built 1950 Load: 29.0 t ADT: 400

Shady Lane

Fair

Over: Enola Run

Shady Lane Bridge, Cumberland, PA

Built 1990 Load: 29.0 t ADT: 300

DINGMANS FALLS ACC

Fair

Over: DINGMANS CREEK

0.7 MILES WEST OF US. ROU, Pike, PA

Built 1999 Load: 29.0 t ADT: 5,017

SR 103-PA 103

Fair

Over: NSRC/AMTRK/JVRR

LEWISTOWN, Mifflin, PA

Built 1984 Load: 29.5 t ADT: 3,970

SR 0279 SB

Fair

Over: VARIOUS CITY STREETS

Fort Duquesne Bridge, Allegheny, PA

Built 1985 Load: 29.8 t ADT: 22,708

T-417; SACHS RD

Fair

Over: US 15 SB; SR 0015

S OF GETTYSBURG, Adams, PA

Built 1963 Load: 29.9 t ADT: 138

PA 116; SR 0116

Fair

Over: TRIB TO MARSH CREEK

2 MI. S. OF KNOXLYN, Adams, PA

Built 1927 Load: 29.9 t ADT: 3,987

PA 234; SR 0234

Fair

Over: US 15; SR 0015

HEIDLERSBURG, Adams, PA

Built 1968 Load: 29.9 t ADT: 6,496

SR 2007

Fair

Over: SO BRANCH CONEWAGO CREEK

EDGE GROVE, Adams, PA

Built 1980 Load: 29.9 t ADT: 567

WHITE CHURCH ROAD

Fair

Over: LITTLES RUN

3.5 SE GBURG/LITTLES RUN, Adams, PA

Built 1978 Load: 29.9 t ADT: 300

SR 0028 SB

Fair

Over: SAXONBURG RD

1 MI S OF FREEPORT INTCH, Allegheny, PA

Built 1972 Load: 29.9 t ADT: 15,521

RAYMOND P SHAFE HW

Fair

Over: RED MUD HOLLOW RD

1 MI.NORTH OF SR4022, Allegheny, PA

Built 1970 Load: 29.9 t ADT: 29,893

GREENTREE RD

Fair

Over: SR 0376 EB WB

GREENTREE EXIT, Allegheny, PA

Built 1950 Load: 29.9 t ADT: 17,175

I-279 NB

Fair

Over: VARIOUS CITY STREETS

Fort Duquesne Bridge, Allegheny, PA

Built 1986 Load: 29.9 t ADT: 17,076

Showing 2,851-2,900 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.