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

SR0056

Fair

Over: CONEMAUGH RIVER

SEWARD, Indiana, PA

Built 1933 Load: 26.3 t ADT: 5,937

SCHOOL STREET

Fair

Over: MARSH RUN

BTW S 4TH & S COULTER AVE, Indiana, PA

Built 1961 Load: 26.3 t ADT: 450

SR 22-US 22

Fair

Over: SR 2009

1 MI W THOMPSONTOWN, Juniata, PA

Built 1972 Load: 26.3 t ADT: 7,250

SR 22-US 22

Fair

Over: TOWNSHIP ROAD 554

1 MI E THOMPSONTOWN, Juniata, PA

Built 1972 Load: 26.3 t ADT: 9,036

SR 75-PA 75

Fair

Over: SR 22-US 22

2 MI NE PORT ROYAL, Juniata, PA

Built 1972 Load: 26.3 t ADT: 6,985

SR 850-PA 850

Fair

Over: WOODWARD RUN

ONE HALF MI S REEDS GAP, Juniata, PA

Built 1955 Load: 26.3 t ADT: 236

T-410 MILL RD

Fair

Over: LOST CREEK

VILLAGE OF JERICHO MILLS, Juniata, PA

Built 1926 Load: 26.3 t ADT: 100

SR 0081 I-81 SB

Fair

Over: TWP RD 444 SCOTT RD

S ABINGTN TP OV TP RD 444, Lackawanna, PA

Built 1961 Load: 26.3 t ADT: 15,349

SR 0081 I-81 NB

Fair

Over: SR 1027 LAYTON ROAD

S ABINGTON TWP OV SR 1027, Lackawanna, PA

Built 1961 Load: 26.3 t ADT: 14,476

SR 0081 I-81 SB

Fair

Over: SR 1027 LAYTON ROAD

S ABINGTON TWP OV SR 1027, Lackawanna, PA

Built 1961 Load: 26.3 t ADT: 15,349

US 222 Southbound

Fair

Over: SR1013 Pleas. Valley Rd.

SE OF EPHRATA, Lancaster, PA

Built 1970 Load: 26.3 t ADT: 29,035

372 Norman Wood Br

Fair

Over: Susq. Riv; Nrfk Sthrn RR

1 Mi. S. of Holtwood, Lancaster, PA

Built 1968 Load: 26.3 t ADT: 4,276

T-502 MILLER ROAD

Fair

Over: HUBER RUN

150 FT SW OF SR 272, Lancaster, PA

Built 1970 Load: 26.3 t ADT: 1,110

US 0422 EB

Fair

Over: RT 0018 NB SB CEDAR ST

@ INT W/ SR 0018, Lawrence, PA

Built 1972 Load: 26.3 t ADT: 6,622

BENJAMIN FRANKLIN

Fair

Over: BUSINESS ROUTE 422

SHENANGO TWP.OVER SR 2004, Lawrence, PA

Built 1971 Load: 26.3 t ADT: 12,977

BENJAMIN FRANKL HW

Fair

Over: SLIPPERY ROCK CREEK

3/4 MI. WEST OF SR 0019, Lawrence, PA

Built 1950 Load: 26.3 t ADT: 11,598

HARBOR EDINBURG RD

Fair

Over: SHENANGO RIVER

1/4 MI. N.E. OF SR 0422, Lawrence, PA

Built 1966 Load: 26.3 t ADT: 5,188

LAKEWOOD RD

Fair

Over: HOTTENBAUGH RUN

037008 HICKORY TOWNSHIP, Lawrence, PA

Built 1955 Load: 26.3 t ADT: 100

I-78 EB; SR 0078

Fair

Over: SR 8014; RAMP B TO US 22

EXIT #8, Lebanon, PA

Built 1969 Load: 26.3 t ADT: 13,519

I-78 WB; SR 0078

Fair

Over: RAMP B; I-78 WB TO US 22

EXIT #8 I-78, Lebanon, PA

Built 1969 Load: 26.3 t ADT: 13,697

SR 1023 (APPL.7)

Fair

Over: COPLAY CREEK

S.CHURCH ST.(EGYPT), Lehigh, PA

Built 1921 Load: 26.3 t ADT: 7,212

JORDAN ROAD

Fair

Over: HAASEN CREEK

SOUTH OF KERNSVILLE, Lehigh, PA

Built 1996 Load: 26.3 t ADT: 350

CHESTER ROAD

Fair

Over: JORDAN CREEK

I MI. NW OF JORDAN VALLEY, Lehigh, PA

Built 1981 Load: 26.3 t ADT: 100

SR 0081 I-81 SB

Fair

Over: TR 315 AIRPORT RD

AVOCA BORO @ EXIT 178, Luzerne, PA

Built 1966 Load: 26.3 t ADT: 28,205

SR 1011 PIERCE ST

Fair

Over: SUSQUEHANNA RIVER

WILKES BARRE 548N SR2004, Luzerne, PA

Built 1979 Load: 26.3 t ADT: 13,624

SR 4008

Fair

Over: PINE CREEK

HUNT TWP .2M E COLUM CNTY, Luzerne, PA

Built 1961 Load: 26.3 t ADT: 130

S.R. 118

Fair

Over: OVER SUGAR RUN

1 MI E OF HUGHESVILLE, Lycoming, PA

Built 1930 Load: 26.3 t ADT: 3,914

MAYNARD STREET

Fair

Over: WEST BR SUSQ RIVER

MAYNARD ST. RIVER BR, Lycoming, PA

Built 1986 Load: 26.3 t ADT: 8,882

SR 321-PA 321

Fair

Over: WHITE GRAVEL CREEK

15 MI N KANE, McKean, PA

Built 1967 Load: 26.3 t ADT: 688

SR 4002

Fair

Over: TUNUNGWANT CREEK

SOUTH BRADFORD, McKean, PA

Built 1948 Load: 26.3 t ADT: 2,305

SR 79 SB

Fair

Over: OVER LT SHENANGO R & RR

LAKE TOWNSHIP, Mercer, PA

Built 1969 Load: 26.3 t ADT: 6,459

SR 4022 LEECH ROAD

Fair

Over: SANKEYS RUN

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1961 Load: 26.3 t ADT: 556

SR 103-PA 103

Fair

Over: JUNIATA RIVER

LEWISTOWN BOROUGH, Mifflin, PA

Built 1989 Load: 26.3 t ADT: 3,970

SR 4007

Fair

Over: KISHACOQUILLAS CREEK

1 MI SW BELLEVILLE, Mifflin, PA

Built 1986 Load: 26.3 t ADT: 1,212

SR 4013

Fair

Over: BUCK RUN

2 MI SW BURNHAM, Mifflin, PA

Built 1961 Load: 26.3 t ADT: 1,528

I-80 WB (LR 1002)

Fair

Over: POCONO CREEK*

0.8 MI. W. OF PA 715, Monroe, PA

Built 1962 Load: 26.3 t ADT: 22,371

I-80

Fair

Over: MCMICHAEL CREEK

NEAR EXIT #306(49), Monroe, PA

Built 1959 Load: 26.3 t ADT: 51,083

PA 402

Fair

Over: MARSHALLS CREEK

MARSHALLS CREEK, Monroe, PA

Built 1940 Load: 26.3 t ADT: 5,534

PA 447(LR 458)

Fair

Over: LEAVITTS BRANCH

.5 M.N.OF CANADENSIS, Monroe, PA

Built 1995 Load: 26.3 t ADT: 920

ALTEMOSE DR.

Fair

Over: POHOPOCO CREEK

0.5 MILE FROM INT SR 3013, Monroe, PA

Built 1978 Load: 26.3 t ADT: 150

MILLER DR T-642

Fair

Over: UPPER TUNKHANNOCK CREEK

1 MI. NO. OF PA 940, Monroe, PA

Built 1971 Load: 26.3 t ADT: 300

SCHUYLKILL EWAY WB

Fair

Over: RAMP K EASTBOUND

CONSHOHOCKEN INTER.35C05, Montgomery, PA

Built 1974 Load: 26.3 t ADT: 43,137

COUNTRY CLUB ROAD

Fair

Over: POTTSTOWN EXPRESSWAY

SPRING FORD C.C. 3140-E08, Montgomery, PA

Built 1976 Load: 26.3 t ADT: 1,865

COWPATH ROAD

Fair

Over: EAST BR.PERKIOMEN CREEK

FRANCONIA 08H07, Montgomery, PA

Built 1967 Load: 26.3 t ADT: 588

OLD GULPH ROAD

Fair

Over: MID-COUNTY EXPRESSWAY

LOWER MERION 3477G02, Montgomery, PA

Built 1974 Load: 26.3 t ADT: 8,219

PAWLINGS RD

Fair

Over: P-TOWN EXPWY SCH.RV.TRL

SOUTH OF OAKS 3365H02, Montgomery, PA

Built 1981 Load: 26.3 t ADT: 7,204

SR 54

Fair

Over: OVER CHILLISQUAQUE CR.

2.5 MI N WASHINGTONVILLE, Montour, PA

Built 1930 Load: 26.3 t ADT: 2,949

US 22(LR 773)

Fair

Over: BUSHKILL DR. CEM. DR. CK

0.25 MI.W.PA.611 EXIT, Northampton, PA

Built 1954 Load: 26.3 t ADT: 40,076

SR 33 NB(LR 1098)

Fair

Over: SCHOENECK CREEK

0.75 MI.N.OF PA.248, Northampton, PA

Built 1972 Load: 26.3 t ADT: 31,243

PA 33 SB(LR 1098)

Fair

Over: NORFOLK SOUTHERN RR

HERCULES CEMENT CO., Northampton, PA

Built 1970 Load: 26.3 t ADT: 31,098

Showing 1,801-1,850 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.