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

TWIN ARCH ROAD

Good

Over: SOUTH BRANCH CODORUS CR.

2.3E NEWSALEM/S.BR.CODORU, York, PA

Built 2021 Load: 36.0 t ADT: 365

PA 394; SR 0394

Good

Over: UNT to Rock Creek

1.25 MI. SE OF TABLE ROCK, Adams, PA

Built 2021 Load: 36.0 t ADT: 4,750

ROUDENBUSH ROAD

Good

Over: KIMPLES CREEK

2 MI NW SR563 ADC 2696-H5, Bucks, PA

Built 2021 Load: 36.0 t ADT: 200

T-556

Good

Over: EAST MILL CREEK

4.1 MI NW OF PENNSDALE, Lycoming, PA

Built 2021 Load: 36.0 t ADT: 250

SR 0070

Good

Over: Sewickley Crk & SW R/R

SOUTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 2022 Load: 36.0 t ADT: 27,178

LOWER VALLEY ROAD

Good

Over: OFFICERS RUN

NEAR PARKESBURG 26H11, Chester, PA

Built 2023 Load: 36.0 t ADT: 2,811

BARNSLEY CHROME RD

Good

Over: UNT NORTHEAST CREEK

N RTE 272 INTERSECT 51E9, Chester, PA

Built 2022 Load: 36.0 t ADT: 2,469

US 422; Lincoln Av

Good

Over: Trib. To Owl Creek

2mi E Myerstown, Lebanon, PA

Built 2022 Load: 36.0 t ADT: 9,839

TR-348 TWP. BR. 1

Good

Over: MILLSTONE CREEK

5.5 MI NW OF NEW ALBANY, Bradford, PA

Built 2023 Load: 36.0 t ADT: 50

376 EB-WB

Good

Over: POPLAR AVENUE

GREENTREE INTERCHANGE, Allegheny, PA

Built 1952 Load: 36.3 t ADT: 76,172

Rosslyn Road

Good

Over: SR 0376 EB WB

ROSSLYN FARMS EXIT, Allegheny, PA

Built 1951 Load: 36.3 t ADT: 4,220

SR 199

Good

Over: CHEMUNG RIVER

ATHENS CHEMUNG RIVER BR., Bradford, PA

Built 1987 Load: 36.3 t ADT: 2,421

TYBURN RD/BRIST P

Good

Over: AMTRAK-NY TO WASH

1.5MI.S.MORRISVIL. 39B09, Bucks, PA

Built 1955 Load: 36.3 t ADT: 12,639

SR 0079 SB

Good

Over: SLIPPERY ROCK CREEK

SLIPPERY ROCK CREEK SB, Butler, PA

Built 1964 Load: 36.3 t ADT: 13,071

SR0422 EB&WB

Good

Over: SR0068 EB&WB

MORGANS, Butler, PA

Built 1960 Load: 36.3 t ADT: 21,181

SR3022

Good

Over: COAL RUN

WEST OF OGLE, Butler, PA

Built 1965 Load: 36.3 t ADT: 18,268

PA 53

Good

Over: BRADLEY RUN

1.8 MILE NORTH OF SR 1015, Cambria, PA

Built 1964 Load: 36.3 t ADT: 2,040

US 219

Good

Over: TR W BR SUSQUEHANNA RIV.

1.6 MILE SOUTH OF PA 271, Cambria, PA

Built 1948 Load: 36.3 t ADT: 3,750

LENAPE ROAD

Good

Over: BRANDYWINE CREEK FLOOD

1MI.TO ROUTE 282 40G6, Chester, PA

Built 1912 Load: 36.3 t ADT: 7,254

SR 219-US 219

Good

Over: SLAB RUN

FALLS CREEK, Clearfield, PA

Built 1969 Load: 36.3 t ADT: 6,289

SR 2007

Good

Over: BEAVER RUN

HOUTZDALE, Clearfield, PA

Built 1952 Load: 36.3 t ADT: 959

TYLER RD

Good

Over: LAUREL RUN

700 FT EAST OF MUD RUN RD, Clearfield, PA

Built 1996 Load: 36.3 t ADT: 25

SR 220-US 220

Good

Over: MCELHATTAN CREEK

YOUNGDALE, Clinton, PA

Built 1974 Load: 36.3 t ADT: 8,269

S.R. 0339

Good

Over: OVER CATAWISSA CREEK

0.25 MILE W OF SHUMANTOWN, Columbia, PA

Built 1974 Load: 36.3 t ADT: 398

INTERSTATE 95(NB)

Good

Over: RAMP A TO HIGHLAND AVE.

US322 RAMP 42K06, Delaware, PA

Built 1966 Load: 36.3 t ADT: 120,393

SR 255-PA 255

Good

Over: CHERRY RUN

FORCE, Elk, PA

Built 1995 Load: 36.3 t ADT: 4,956

SR 4007

Good

Over: SILVER CREEK

1 MI NW JOHNSONBURG, Elk, PA

Built 1970 Load: 36.3 t ADT: 512

SR 1107 GERMAN RD

Good

Over: OVER SR 86 EB/WB SO TIER

GREENFIELD TOWNSHIP, Erie, PA

Built 1987 Load: 36.3 t ADT: 39

SR 3022 KINTER HL.

Good

Over: OVER DARROWS CREEK

WASHINGTON TOWNSHIP, Erie, PA

Built 1965 Load: 36.3 t ADT: 938

SR3027

Good

Over: WHISKY RUN

BLACKLEGS ROAD, Indiana, PA

Built 1993 Load: 36.3 t ADT: 156

DELAWARE ST

Good

Over: LACKAWANNA RIVER

JERM BORO 50 FT SE MAPLE, Lackawanna, PA

Built 1993 Load: 36.3 t ADT: 300

PA 372; Valley Rd

Good

Over: Meetinghouse Creek

4 Mi. N.E. of Quarryville, Lancaster, PA

Built 1963 Load: 36.3 t ADT: 4,499

PERRY HW

Good

Over: MUDDY CREEK

SR 0019 OVER MUDDY CREEK, Lawrence, PA

Built 1990 Load: 36.3 t ADT: 3,122

TWP RD;OLD SR 4023

Good

Over: AIRE RUN

ED.MARTIN MIL.RESV., Lebanon, PA

Built 1979 Load: 36.3 t ADT: 544

VALLEY ROAD

Good

Over: SAUCON CREEK

BETWEEN 309 & 378, Lehigh, PA

Built 1993 Load: 36.3 t ADT: 150

PA TPK (I-476)

Good

Over: T-392

1.5 MI N OF BUCKS CO LINE, Lehigh, PA

Built 1955 Load: 36.3 t ADT: 44,406

I - 180 WBL

Good

Over: OVER RAMP A&B(HEPBURN ST

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1972 Load: 36.3 t ADT: 17,913

SR 0287

Good

Over: OVER LARRYS CR.

1 MI N OF SALLADASBURG, Lycoming, PA

Built 1985 Load: 36.3 t ADT: 1,234

TR 973

Good

Over: TRIBUTARY MILL CREEK

0.5 MI W OF BALLS MILLS, Lycoming, PA

Built 1954 Load: 36.3 t ADT: 1,316

SR 8010 RAMP"F"S

Good

Over: MILLERS RUN & T-480

.13MI S INTERSECT L.R.18, Lycoming, PA

Built 1982 Load: 36.3 t ADT: 2,067

SR 18 SHARON ROAD

Good

Over: OVER SHENANGO RIVER

CLARK BOROUGH, Mercer, PA

Built 1966 Load: 36.3 t ADT: 10,243

SR 4012 REYNOLDS R

Good

Over: OVER SHENANGO RIVER

PYMATUNING TOWNSHIP, Mercer, PA

Built 1960 Load: 36.3 t ADT: 2,934

NEW SECOND STREET

Good

Over: TACONY CREEK

CHELTENHAM 3371-B10, Montgomery, PA

Built 1959 Load: 36.3 t ADT: 7,668

STUMP HALL ROAD

Good

Over: ZACHARIAS CREEK

SE SKIPPACK 3142J07, Montgomery, PA

Built 1958 Load: 36.3 t ADT: 3,293

NEW HANOVER SQUARE

Good

Over: MINISTER CREEK

LAUGH. WATERS 12J2/3028A4, Montgomery, PA

Built 1963 Load: 36.3 t ADT: 2,534

MENSCH ROAD

Good

Over: TRIB OF SKIPPACK CREEK

MENSCH ROAD 3142-G5, Montgomery, PA

Built 1920 Load: 36.3 t ADT: 365

I-180 EASTBOUND

Good

Over: OVER S.R. 1007

2 MILES NORTH OF MILTON, Northumberland, PA

Built 1971 Load: 36.3 t ADT: 8,770

SR 3004

Good

Over: SHULTZS CREEK

0.8MI SW CENTER SQUARE, Perry, PA

Built 1960 Load: 36.3 t ADT: 100

SR 6-US 6

Good

Over: LYMAN CREEK

SWEDEN VALLEY, Potter, PA

Built 1962 Load: 36.3 t ADT: 4,945

US 15

Good

Over: OVER MILL CREEK

MILL CRK/TIOGA DAM BRIDGE, Tioga, PA

Built 1974 Load: 36.3 t ADT: 5,141

Showing 14,451-14,500 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.