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

T-848 PEIFFER ROAD

Fair

Over: DOE RUN

0.7 MI SW OF SR 4014, York, PA

Built 1930 Load: 26.3 t ADT: 50

BUSTLETON PIKE

Fair

Over: POQUESSING CREEK

.2MI.S.PHILMONT 3260H10, Philadelphia, PA

Built 1974 Load: 26.3 t ADT: 29,688

KNIGHTS ROAD

Fair

Over: POQUESSING CREEK

BUCKS COUNTY LINE 3373G05, Philadelphia, PA

Built 1963 Load: 26.3 t ADT: 20,894

KENNEDY BLVD AT 32

Fair

Over: SEPTA (WEST BRANCH)

W.OF 30TH ST.STA. 3590A07, Philadelphia, PA

Built 1955 Load: 26.3 t ADT: 11,728

HENRY AVENUE

Fair

Over: SEPTA;CSX AND CREEK

N.HUNTING PARK AVE3480B09, Philadelphia, PA

Built 1930 Load: 26.3 t ADT: 20,958

2nd Street

Fair

Over: CONRAIL (RICHMOND BRANCH

S.CLEARFIELD ST. 29A04, Philadelphia, PA

Built 1964 Load: 26.3 t ADT: 11,400

RAMP B NORTHBOUND

Fair

Over: PROPOSED SUBWAY TUNNEL

BROAD STR.INTERCH.3700B07, Philadelphia, PA

Built 1975 Load: 26.3 t ADT: 8,326

SR 1016 MILLER STA

Fair

Over: OVER KELLY RUN

ROCKDALE TOWNSHIP, Crawford, PA

Built 2003 Load: 26.3 t ADT: 420

NORTH WALES ROAD

Fair

Over: STONY CREEK

1 MI. W. I-476 3255J4, Montgomery, PA

Built 1992 Load: 26.3 t ADT: 7,478

Market/Chestnut St

Fair

Over: PennsLanding Parking Lot

Penns Landing 3590-H9, Philadelphia, PA

Built 1983 Load: 26.3 t ADT: 4,000

NOBLESTOWN RD

Fair

Over: OHIO C. SR3117 ROBINSON

1/2 MI W OF US 0079, Allegheny, PA

Built 1972 Load: 26.3 t ADT: 2,837

BROOKHART ROAD

Fair

Over: BARGERS RUN

250 FT N PERRY VALLEY RD, Perry, PA

Built 2010 Load: 26.3 t ADT: 25

Log College Drive

Fair

Over: Stream

Warminster 3147-C4, Bucks, PA

Built 1970 Load: 26.3 t ADT: 300

Quarry Road

Fair

Over: Core Creek

Lower Makefield 3150-H1, Bucks, PA

Built 1980 Load: 26.3 t ADT: 1,000

North Drive

Fair

Over: Newtown Creek

Newtown 3037-G8, Bucks, PA

Built 1985 Load: 26.3 t ADT: 600

Makefield Road

Fair

Over: Rock Run

Lower Makefield 3151-J7, Bucks, PA

Built 1971 Load: 26.3 t ADT: 1,800

Derbyshire Road

Fair

Over: Rock Run

Lower Makefield 3151-G7, Bucks, PA

Built 1971 Load: 26.3 t ADT: 800

T-514 CTY BR # 9

Fair

Over: WHITE DEER CREEK

1.5 MI. W. OF WHITE DEER, Union, PA

Built 1915 Load: 26.9 t ADT: 163

ACCESS ROAD

Fair

Over: INDIAN ROCK DAM

INDIAN ROCK DAM PA, York, PA

Built 1949 Load: 26.9 t ADT: 400

BOYDS SCHOOL ROAD

Fair

Over: ROCK CREEK

1.5N GETTYSBURG/ROCK CRK., Adams, PA

Built 1971 Load: 27.2 t ADT: 1,000

SR 0028 SB

Fair

Over: POWERS RUN ROAD SR 1009

1037 SB OVER LR 02146, Allegheny, PA

Built 1970 Load: 27.2 t ADT: 24,013

INTERSTATE 376 WB

Fair

Over: ABDN RR 2ND AVE 10TH ST

1/4 MI. E.OF LIBERTY BR., Allegheny, PA

Built 1956 Load: 27.2 t ADT: 33,310

New Kensington Brg

Fair

Over: SR 9109 N&S PINE ALLRIV

New Kensington Bridge, Allegheny, PA

Built 1927 Load: 27.2 t ADT: 18,682

WILLIAM PENN HY

Fair

Over: LR 395 & CHALFONT RUN

OVER SR 2053, Allegheny, PA

Built 1941 Load: 27.2 t ADT: 37,645

Jerome Street

Fair

Over: 2027 CSX LOCAL & YOUGH R

Jerome Street Bridge, Allegheny, PA

Built 1937 Load: 27.2 t ADT: 13,778

BETTIS RD

Fair

Over: UNION RR

1 MI.EAST OF SR 2045, Allegheny, PA

Built 1920 Load: 27.2 t ADT: 2,452

PA TPK (I-76)

Fair

Over: CN RR

NEAR OAKMONT, Allegheny, PA

Built 1950 Load: 27.2 t ADT: 38,689

SPENCER LN

Fair

Over: PINE CREEK

118005 OVER PINE CREEK, Allegheny, PA

Built 1936 Load: 27.2 t ADT: 100

PRIVATE ACCESS RD

Fair

Over: BIG SEWICKLEY CREEK

SB04 BIG SEWICKLEYCR# 4, Allegheny, PA

Built 1885 Load: 27.2 t ADT: 10

STANWIX ST

Fair

Over: I-376 WB (PARKWAY EAST)

106 Stanwix St Bridge, Allegheny, PA

Built 1939 Load: 27.2 t ADT: 8,600

RAMP G

Fair

Over: CROSSTOWN BLVD

NORTH OF LIBERTY BR., Allegheny, PA

Built 1962 Load: 27.2 t ADT: 5,419

RAMP A

Fair

Over: SR 0051 RAMP C

BEHIND FORT PITT GARAGE, Allegheny, PA

Built 1953 Load: 27.2 t ADT: 10,539

SR0028 NB

Fair

Over: SR0128

GUARDIAN ANGEL NB, Armstrong, PA

Built 1968 Load: 27.2 t ADT: 6,819

SR0028 SB

Fair

Over: SR0128

GUARDIAN ANGEL SB, Armstrong, PA

Built 1968 Load: 27.2 t ADT: 6,844

SR0028 NB

Fair

Over: SR3007

CENTER HILL NO.1 NB, Armstrong, PA

Built 1970 Load: 27.2 t ADT: 6,819

SR0028 SB

Fair

Over: SR3007

CENTER HILL NO.1 SB, Armstrong, PA

Built 1970 Load: 27.2 t ADT: 6,844

SR0056

Fair

Over: LINDSAY RUN

LINDSAY RUN, Armstrong, PA

Built 1930 Load: 27.2 t ADT: 4,499

SR2004

Fair

Over: MILLER RUN

COPPER VALLEY NO.1, Armstrong, PA

Built 1967 Load: 27.2 t ADT: 656

SR3011

Fair

Over: TRIB TO BUFFALO CREEK

WORTHINGTON NO.5, Armstrong, PA

Built 1960 Load: 27.2 t ADT: 2,679

SR4010

Fair

Over: GLADE RUN

WALKCHALK NO.1, Armstrong, PA

Built 1918 Load: 27.2 t ADT: 1,495

FRIENDSHIP ROAD

Fair

Over: PA TURNPIKE BV-109

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 27.2 t ADT: 679

CABIN ROAD

Fair

Over: TRAVERSE CREEK

400 FT NW OF SR 18, Beaver, PA

Built 1935 Load: 27.2 t ADT: 245

SR 1005

Fair

Over: SNAKESPRING VALLEY RUN

.5 MI.S.OF VALLEYMILL, Bedford, PA

Built 1920 Load: 27.2 t ADT: 331

SR 1014

Fair

Over: DUNNINGS CREEK

1 MI.E.OF BELDEN, Bedford, PA

Built 1961 Load: 27.2 t ADT: 263

SR 2029

Fair

Over: SHAFFERS CREEK

2 MILE EAST OF CLEARVILLE, Bedford, PA

Built 1961 Load: 27.2 t ADT: 97

SR 3014

Fair

Over: SULPHUR SPRING CREEK

.5 MI.W.SULPHUR SPRING, Bedford, PA

Built 1984 Load: 27.2 t ADT: 118

SR 3019

Fair

Over: RAYSTOWN BR JUNIATA RIV

.25 MI.S.NEW BUENA VISTA, Bedford, PA

Built 1962 Load: 27.2 t ADT: 88

T-704 OLD MILL RD

Fair

Over: THREE SPRINGS RUN

0.7 MI.E.NEW ENTERPRISE, Bedford, PA

Built 1930 Load: 27.2 t ADT: 41

SR 0078(LR 141)

Fair

Over: NORTHKILL CREEK

1 MI.W.OF SHARTLESVILLE, Berks, PA

Built 1954 Load: 27.2 t ADT: 32,877

US 422(LR 793)

Fair

Over: FRANKLIN STREET

READING BYPASS, Berks, PA

Built 1963 Load: 27.2 t ADT: 76,379

Showing 1,901-1,950 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.