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

SR 1007

Fair

Over: BRANCH OF TUBMILL CREEK

SAINT CLAIR TOWNSHIP, Westmoreland, PA

Built 1971 Load: 39.9 t ADT: 89

SR 1020

Fair

Over: SAXMAN RUN

DERRY TOWNSHIP, Westmoreland, PA

Built 1960 Load: 39.9 t ADT: 4,306

SR 3018

Fair

Over: LITTLE SEWICKLEY CREEK

SEWICKLEY TOWNSHIP, Westmoreland, PA

Built 1985 Load: 39.9 t ADT: 2,813

SR 3053

Fair

Over: LONG RUN

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1988 Load: 39.9 t ADT: 802

PA TPK (I-76)

Fair

Over: LYONS RUN

WEST OF PLEASANT VALLEY, Westmoreland, PA

Built 1952 Load: 39.9 t ADT: 46,261

PA TPK (I-76)

Fair

Over: SR 0030

IRWIN INTERCHANGE, Westmoreland, PA

Built 1952 Load: 39.9 t ADT: 34,735

PA TPK (I-76)

Fair

Over: SR 3093

NEW STANTON, Westmoreland, PA

Built 1939 Load: 39.9 t ADT: 32,982

T-776 Swckly Cr R

Fair

Over: SEWICKLEY CREEK

BTW T562 & SR 2012, Westmoreland, PA

Built 1940 Load: 39.9 t ADT: 100

SR 0006 TR 6

Fair

Over: TUNKHANNOCK CREEK

TUNKHANCK TP .1M W SR1001, Wyoming, PA

Built 1990 Load: 39.9 t ADT: 10,670

BUS 83; SR 3065

Fair

Over: CODORUS CREEK

1ST.AVE & GEORGE ST., York, PA

Built 1934 Load: 39.9 t ADT: 11,762

HESS FARM RD.

Fair

Over: INNERS CREEK

1.2E JACOBUS/INNERS CREEK, York, PA

Built 1940 Load: 39.9 t ADT: 1,380

GROVE MILL RD.

Fair

Over: SO BRANCH OF MUDDY CREEK

@ GROVE MILL/S BR MUDDY, York, PA

Built 1925 Load: 39.9 t ADT: 50

EASTERN BOULEVARD

Fair

Over: BRANCH OF KREUTZ CREEK

CAMP SECURITY BRIDGE, York, PA

Built 1993 Load: 39.9 t ADT: 2,000

INTERSTATE 95

Fair

Over: PENNYPACK CR.&SERVICE RD

NEAR STATE ROAD 3482G05, Philadelphia, PA

Built 1965 Load: 39.9 t ADT: 159,848

VEREE ROAD

Fair

Over: PENNYPACK CREEK

1.1MI.S.WELSH RD. 3372A07, Philadelphia, PA

Built 1960 Load: 39.9 t ADT: 13,894

84TH STREET

Fair

Over: SEPTA & MARIO LANZA BLVD

SEPTA & 84TH ST. 3699A08, Philadelphia, PA

Built 1974 Load: 39.9 t ADT: 26,533

63RD STREET

Fair

Over: SEPTA AIRPORT H S LINE

NR.EASTWICK AVENUE3699E03, Philadelphia, PA

Built 1984 Load: 39.9 t ADT: 16,089

LITTLE MARKET ST

Fair

Over: AMTRAK

30TH;MARKET ST 3590A08, Philadelphia, PA

Built 1932 Load: 39.9 t ADT: 19,991

JFK BLVD.

Fair

Over: SCHUYLKILL RIVER;CSX RR

30TH STREET STA. 3590B08, Philadelphia, PA

Built 1959 Load: 39.9 t ADT: 11,168

MOUNT AIRY AVENUE

Fair

Over: SPRAGUE STREET(ONE WAY)

.3MI.NE.GERMANTOWN3370A10, Philadelphia, PA

Built 1939 Load: 39.9 t ADT: 6,394

21st Street

Fair

Over: Abandoned Conrail

N.CALLOWHILL ST. 28E10, Philadelphia, PA

Built 1899 Load: 39.9 t ADT: 5,800

Fountain Street

Fair

Over: Manayunk Canal

MANAYUNK CANAL 3479-C5, Philadelphia, PA

Built 1885 Load: 39.9 t ADT: 200

MARKET STREET WEST

Fair

Over: I-95 RAMPS COLUMBUS BLVD

.3MI.S.BEN FRKN.BR.3590H9, Philadelphia, PA

Built 1976 Load: 39.9 t ADT: 1,560

RAMP SV

Fair

Over: INTERSTATE 95(SB);SEPTA

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

Built 1989 Load: 39.9 t ADT: 24,755

RAMP B N.B.ON

Fair

Over: FUTURE SUBWAY EXTENSION

BROAD ST.INTERCH. 3700C07, Philadelphia, PA

Built 1969 Load: 39.9 t ADT: 8,326

RAMP VN

Fair

Over: RMPS.SV;S3;I-95

I-95 AT VINE STR. 3590H07, Philadelphia, PA

Built 1989 Load: 39.9 t ADT: 39,833

RAMP B N.B. ON RAM

Fair

Over: TACONY STREET

BRIDGE STR.INTERCH3481J09, Philadelphia, PA

Built 1967 Load: 39.9 t ADT: 8,678

PA 897; SR O897

Fair

Over: LITTLE MUDDY RUN

0.75 MI. S. OF ADAMSTOWN, Lancaster, PA

Built 1999 Load: 39.9 t ADT: 5,154

SR 249

Fair

Over: OVER CROOKED CREEK

6.5 MI. W OF MIDDLEBURY, Tioga, PA

Built 1999 Load: 39.9 t ADT: 1,186

SR 0084 I-84 EB

Fair

Over: SR 0081 I-81 NB & SB

DUNMORE BORO OVER I-81, Lackawanna, PA

Built 1999 Load: 39.9 t ADT: 23,400

WASHINGTON ST.

Fair

Over: MILL CREEK

PORT CARBON POST OFFICE, Schuylkill, PA

Built 2001 Load: 39.9 t ADT: 500

SR 2023

Fair

Over: PIGEON CREEK

CARROLL TWP, Washington, PA

Built 2002 Load: 39.9 t ADT: 601

SR 0022

Fair

Over: LOYALHANNA CREEK

NEW ALEXANDRIA BOROUGH, Westmoreland, PA

Built 2002 Load: 39.9 t ADT: 29,031

SR 4007 (LR 45035)

Fair

Over: DELAWARE-LACKAWANNA RR

FAIRVIEW AVENUE, Monroe, PA

Built 2004 Load: 39.9 t ADT: 1,045

SR 4009

Fair

Over: SR 0022

Over SR 0022, Washington, PA

Built 2006 Load: 39.9 t ADT: 1,152

MOORE ROAD EXT.

Fair

Over: TRIB. TO RAMSEY RUN

2.5 MI. OFF RAMSEY ROAD, Lycoming, PA

Built 2011 Load: 39.9 t ADT: 99

MOORE ROAD EXT.

Fair

Over: TRIB. TO RAMSEY RUN

2.5 MI. OFF RAMSEY ROAD, Lycoming, PA

Built 2011 Load: 39.9 t ADT: 99

MOORE ROAD EXT.

Fair

Over: TRIB. TO RAMSEY RUN

2 MI. OFF RAMSEY ROAD, Lycoming, PA

Built 2011 Load: 39.9 t ADT: 99

SOUTH HIGHLAND AVE

Fair

Over: ELLSWORTH E BUSWAY NSR

100 S Highland Ave Bridge, Allegheny, PA

Built 1925 Load: 39.9 t ADT: 8,242

Mechanic Street

Fair

Over: Aquetong Creek

250Eof S Sugan Rd 2925F3, Bucks, PA

Built 1960 Load: 39.9 t ADT: 350

SR 1011

Fair

Over: Deep Run

.5 MI.N.E. MT. ZION, Lebanon, PA

Built 2017 Load: 39.9 t ADT: 1,918

Mt Pleasant Road

Fair

Over: Slate Run Creek

500 N of T-309, Westmoreland, PA

Built 1978 Load: 39.9 t ADT: 7,037

Oakridge Road

Fair

Over: Tomhicken Creek

1/4 MI SOUTH OF RT 924, Luzerne, PA

Built 2000 Load: 39.9 t ADT: 500

SPRINGTON ROAD

Fair

Over: NAYLORS RUN

200FT N OF MARSHALL RD, Delaware, PA

Built 1920 Load: 39.9 t ADT: 500

BICKNELL RD

Fair

Over: PUDDLE DUCK CREEK

50 FEET FROM ARCADIA TRAC, Lancaster, PA

Built 1901 Load: 39.9 t ADT: 100

ATEN RD

Fair

Over: INDUSTRY DRIVE

203001 .5 M WEST/SR 0060, Allegheny, PA

Built 1980 Load: 40.2 t ADT: 900

RIVER STREET

Fair

Over: ANDERSON CREEK

0.2 MI S OF SR 879 INTER, Clearfield, PA

Built 1949 Load: 40.2 t ADT: 5,076

SR 4033

Fair

Over: OVER LITTLE FISHING CR.

1.5 MI NE OF SERENO, Columbia, PA

Built 1952 Load: 40.2 t ADT: 91

SR 0006 TR 6 & 11

Fair

Over: OUTLET OF GLENBURN POND

GLENBURN TWP .2M W SR4010, Lackawanna, PA

Built 1952 Load: 40.2 t ADT: 9,873

SR 80-I 80

Fair

Over: SR 2037

ONE-HALF MI E EXIT 133, Clearfield, PA

Built 2012 Load: 40.2 t ADT: 7,584

Showing 7,851-7,900 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.