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 1005

Fair

Over: OVER LOYALSOCK CREEK

VILLAGE OF BARBOURS, Lycoming, PA

Built 1989 Load: 29.0 t ADT: 331

SR 3028

Fair

Over: SEDA COG Railroad

BORO OF JERSEY SHORE, Lycoming, PA

Built 1985 Load: 29.0 t ADT: 6,952

SR 4010

Fair

Over: LARRYS CREEK

0.5 MI E OF COGANHOUSE, Lycoming, PA

Built 1932 Load: 29.0 t ADT: 107

SR 346-PA 346

Fair

Over: BENNETT BROOK

BRADFORD, McKean, PA

Built 1910 Load: 29.0 t ADT: 5,979

T-406 BEMIS ROAD

Fair

Over: SKINNER CREEK

100 SOUTH OF SKINNER RD, McKean, PA

Built 1970 Load: 29.0 t ADT: 25

SR 60 NB BEAVER

Fair

Over: OVER SR 18 N/SB NEW CAST

SHENANGO TOWNSHIP, Mercer, PA

Built 1974 Load: 29.0 t ADT: 6,121

SR 2022 MILLBROOK

Fair

Over: OVER WOLF CREEK

WORTH TOWNSHIP, Mercer, PA

Built 1895 Load: 29.0 t ADT: 153

BRIDGE 1205 T-842

Fair

Over: OVER MILL CREEK

OBITZ ROAD MILL CREEK TWP, Mercer, PA

Built 1982 Load: 29.0 t ADT: 83

BRIDGE 3121 T-413

Fair

Over: OVER WOLF CREEK

DAUGHERTY RD PINE TWP., Mercer, PA

Built 1953 Load: 29.0 t ADT: 521

SR 22-US 22

Fair

Over: SR 522 SEDA-COG

LEWISTOWN BORO, Mifflin, PA

Built 1958 Load: 29.0 t ADT: 11,177

SR 22-US 22

Fair

Over: SR 522 SEDA-COG

LEWISTOWN BORO, Mifflin, PA

Built 1958 Load: 29.0 t ADT: 11,906

SR 655-PA 655

Fair

Over: COFFEE RUN

2 MI SW REEDSVILLE, Mifflin, PA

Built 1929 Load: 29.0 t ADT: 7,081

PA 33 SB(LR 796)

Fair

Over: SR 8010 RAMP G

OVER I-80 RAMP G, Monroe, PA

Built 1963 Load: 29.0 t ADT: 6,755

US 209

Fair

Over: POHOPOCO CREEK

2 MI.W.OF BROADHEADSVILLE, Monroe, PA

Built 1973 Load: 29.0 t ADT: 10,552

SR2012

Fair

Over: MARSHALLS CREEK

JCT.101 & 209 BUS., Monroe, PA

Built 1927 Load: 29.0 t ADT: 11,288

SR 2006 (LR 45010)

Fair

Over: CHERRY CREEK

CHERRY VALLEY ROAD, Monroe, PA

Built 1930 Load: 29.0 t ADT: 249

HUNTINGDON PIKE

Fair

Over: PENNYPACK CREEK

SW BRYN ATHYN 3371J02, Montgomery, PA

Built 1936 Load: 29.0 t ADT: 21,544

MID-COUNTY EXWY.NB

Fair

Over: BROOK ROAD

PLYMOUTH TOWNSHIP 3368A07, Montgomery, PA

Built 1974 Load: 29.0 t ADT: 53,181

SUSQUEHANNA ROAD

Fair

Over: SANDY RUN CREEK

ROSYLYN; 3258G10, Montgomery, PA

Built 1964 Load: 29.0 t ADT: 11,360

WARNER ROAD

Fair

Over: NORFOLK SOUTHERN

1 Mi. SE KOP 3366-G8, Montgomery, PA

Built 1947 Load: 29.0 t ADT: 600

PA TPK (I-276)

Fair

Over: SR0023 SR3025 NSRR SEPTA

EAST OF BRIDGEPORT, Montgomery, PA

Built 1954 Load: 29.0 t ADT: 65,138

RAMP L;476S TO 76

Fair

Over: MATSONFORD RD/DEHAVEN ST

CONSHO INTER. 3367J10, Montgomery, PA

Built 1975 Load: 29.0 t ADT: 11,128

I-80 EB

Fair

Over: TRIB MAUSES CR & SR 3007

2.1 MI. W DANVILLE EXIT, Montour, PA

Built 1963 Load: 29.0 t ADT: 12,929

PA 254

Fair

Over: OVER CHILLISQUAQUE CREEK

BORO OF WASHINGTONVILLE, Montour, PA

Built 1946 Load: 29.0 t ADT: 1,827

US 22

Fair

Over: SR 2019 (LR 48021)

13TH ST.INTERCHANGE, Northampton, PA

Built 1954 Load: 29.0 t ADT: 40,076

SR 1033 (LR 48075)

Fair

Over: BRANCH OF MARTINS CREEK

NORTH OF BANGOR, Northampton, PA

Built 1960 Load: 29.0 t ADT: 1,425

LITTLE CREEK ROAD

Fair

Over: LITTLE MARTINS CREEK

0.1 M. NORTH OF PA 611, Northampton, PA

Built 1981 Load: 29.0 t ADT: 350

SR 487

Fair

Over: OVER BR OF SHAMOKIN CRK

VILLAGE OF PAXINOS, Northumberland, PA

Built 1947 Load: 29.0 t ADT: 9,307

US 22-322;SR0022EB

Fair

Over: PERRY VALLEY RD.

0.8MI SE OF MILLERSTOWN, Perry, PA

Built 1966 Load: 29.0 t ADT: 8,985

SR 1008; (T-477)

Fair

Over: COCOLAMUS CREEK

2 MI WEST OF NEKODA, Perry, PA

Built 1938 Load: 29.0 t ADT: 394

SR 0084 I-84 EB

Fair

Over: RAYMONDSKILL CREEK

DINGMAN TWP @ MILE 41.6, Pike, PA

Built 1966 Load: 29.0 t ADT: 6,491

SR 2009

Fair

Over: RAYMONDSKILL CREEK

DINGMAN TWP 500N SR 2001, Pike, PA

Built 1954 Load: 29.0 t ADT: 293

SR 4004

Fair

Over: OUTLET FAIRVIEW LAKE

BLMNG GRV TP .1M E SR4002, Pike, PA

Built 1939 Load: 29.0 t ADT: 519

SR 4006

Fair

Over: WEST FALLS CREEK

LACKAWAXEN TP 1M W TR 590, Pike, PA

Built 1960 Load: 29.0 t ADT: 280

SR 6-US 6

Fair

Over: FISHING CREEK

ROULETTE, Potter, PA

Built 1967 Load: 29.0 t ADT: 3,357

SR 1011

Fair

Over: GENESEE RIVER

1 MI S GENESEE, Potter, PA

Built 1953 Load: 29.0 t ADT: 513

SR 3006

Fair

Over: MILL CREEK

1 MI E SWEDEN VALLEY, Potter, PA

Built 1967 Load: 29.0 t ADT: 260

ON TSR 530

Fair

Over: BRADLEY RUN

1 MI S CLARA, Potter, PA

Built 1967 Load: 29.0 t ADT: 237

T-472 CHURCH ST

Fair

Over: COWANESQUE RIVER

100 FT FROM RT 49, Potter, PA

Built 1978 Load: 29.0 t ADT: 50

T-493 HURLER ROAD

Fair

Over: NORTH FORK CREEK

0.1 MI FROM SR 1016, Potter, PA

Built 1978 Load: 29.0 t ADT: 10

PA 54

Fair

Over: PINE CREEK

BARNESVILLE, Schuylkill, PA

Built 1964 Load: 29.0 t ADT: 5,297

PA 61 (LR 141)

Fair

Over: MAHONNEY CREEK

2 MI.S.OF SCH HAVEN BORO, Schuylkill, PA

Built 1937 Load: 29.0 t ADT: 20,319

US 209 (LR 199)

Fair

Over: I-81 (L.R. 1005)

EXIT 107(33) I-81, Schuylkill, PA

Built 1969 Load: 29.0 t ADT: 4,790

PA 209 (LR 199)

Fair

Over: MUDDY CREEK

BRANCHDALE, Schuylkill, PA

Built 1975 Load: 29.0 t ADT: 5,105

PA 901 (LR 53056)

Fair

Over: I-81 (LR 1005)

AIRPORT & PRISON EXIT 35, Schuylkill, PA

Built 1969 Load: 29.0 t ADT: 6,538

SR 1016(LR 53045)

Fair

Over: I-81 (LR1005)

2 MI.NORTH OF DELANO, Schuylkill, PA

Built 1966 Load: 29.0 t ADT: 76

SR 4002 (LR 53095)

Fair

Over: DYERS RUN

HECKSCHERSVILLE, Schuylkill, PA

Built 1962 Load: 29.0 t ADT: 4,084

SR 9101(LR 417)

Fair

Over: SCHUYLKILL RIVER

INTERSEC.PA183-PA61, Schuylkill, PA

Built 1951 Load: 29.0 t ADT: 1,934

SR 2003

Fair

Over: SUSQUEHECKA CREEK

0.3 MI S OF FREEBURG BORO, Snyder, PA

Built 1937 Load: 29.0 t ADT: 175

MOUNTAIN DALE RD

Fair

Over: SOUTH BRANCH MIDDLE CRK

VILLAGE OF MCCLURE, Snyder, PA

Built 1948 Load: 29.0 t ADT: 1,099

Showing 2,751-2,800 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.