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

ON TSR 328

Fair

Over: BEAVER DAM RUN

1 MI SE ATKINSON MILLS, Mifflin, PA

Built 1957 Load: 40.8 t ADT: 642

T-323

Fair

Over: JACKS CREEK

900 FT NORTH OF SR 2004, Mifflin, PA

Built 1910 Load: 40.8 t ADT: 50

T-708 SHINDLE RD.

Fair

Over: JACKS CREEK

650 FT NORTH OF SR 2004, Mifflin, PA

Built 1923 Load: 40.8 t ADT: 394

SCHUYLKILLRIVER RD

Fair

Over: U MERION & PLYMOUTH RR

SWEDELAND 29B12/3367H5, Montgomery, PA

Built 1922 Load: 40.8 t ADT: 6,900

TRAFFIC ROUTE 100

Fair

Over: SCHUYLKILL RIV./RIVER RD

N. OF 422 11D11/3138E2, Montgomery, PA

Built 1954 Load: 40.8 t ADT: 34,085

TRINITY LANE

Fair

Over: GULPH MILLS CREEK

GULPH MILLS 3367F10, Montgomery, PA

Built 1789 Load: 40.8 t ADT: 5,104

TROOPER ROAD

Fair

Over: POTTSTOWN EXPRESSWAY

BETZWOOD 27J9/3366C3, Montgomery, PA

Built 1974 Load: 40.8 t ADT: 30,511

EASTON ROAD

Fair

Over: PENNYPACK CREEK

N.TURNPIKE INTERC.3258K02, Montgomery, PA

Built 1959 Load: 40.8 t ADT: 29,819

ORVILLA ROAD

Fair

Over: W BR NESHAMINY CREEK

HATFIELD TWP 3032G05, Montgomery, PA

Built 1874 Load: 40.8 t ADT: 7,941

DIETZ MILL ROAD

Fair

Over: RIDGE VALLEY CREEK

DIETZ MILL-LR386 2918-D6, Montgomery, PA

Built 1913 Load: 40.8 t ADT: 256

INDIAN CREEK ROAD

Fair

Over: INDIAN CREEK

0.9 MI S SR63 ADC 3030-E5, Montgomery, PA

Built 1973 Load: 40.8 t ADT: 750

WASSER ROAD

Fair

Over: TRIB.OF MACOBY CREEK

1.2 Mi N of RT663 2805-B3, Montgomery, PA

Built 1937 Load: 40.8 t ADT: 150

PA TPK (I-276)

Fair

Over: SR 0073

SOUTH OF FORT WASHINGTON, Montgomery, PA

Built 1954 Load: 40.8 t ADT: 74,921

PA TPK (I-276)

Fair

Over: PENNYPACK CREEK

EAST OF WILLOW GROVE INTG, Montgomery, PA

Built 1954 Load: 40.8 t ADT: 92,381

RAMP T(76W TO 476N

Fair

Over: RAMPS N & S

CONSHO INT.35D04/3367K10, Montgomery, PA

Built 1975 Load: 40.8 t ADT: 13,369

SR 54

Fair

Over: OVER MAHONING CR.

1.5 MI N OF DANVILLE, Montour, PA

Built 1930 Load: 40.8 t ADT: 10,367

PA 33(LR 796)

Fair

Over: MALE ST (FORMER SR 1028)

PA 33 OVER MALE STREET, Northampton, PA

Built 1958 Load: 40.8 t ADT: 40,493

I-78 E.B.(LR 1045)

Fair

Over: SR 2006 (LR 48006)

OVER SR 2006(EASTON RD), Northampton, PA

Built 1988 Load: 40.8 t ADT: 29,346

I-78 W.B.(LR 1045)

Fair

Over: SR 2006 (LR48006)

OVER SR2006(EASTON RD), Northampton, PA

Built 1988 Load: 40.8 t ADT: 26,739

SR 3011 (LR 48096)

Fair

Over: CITY STS RIVER CAN NSRC

PHILIP FAHY BRIDGE NEW ST, Northampton, PA

Built 1972 Load: 40.8 t ADT: 11,571

LITTLE CREEK ROAD

Fair

Over: LITTLE MARTINS CREEK

0.2 MILE NORTH OF PA 611, Northampton, PA

Built 1985 Load: 40.8 t ADT: 200

SR 54

Fair

Over: OVER DELAWARE RUN

3 MI NW OF DEWART, Northumberland, PA

Built 1959 Load: 40.8 t ADT: 2,296

I-80 WB

Fair

Over: SR405& WB SUSQUEHANNA R.

MILTON I80WB RIVER BRIDGE, Northumberland, PA

Built 1962 Load: 40.8 t ADT: 13,946

SR 1022

Fair

Over: OVER SR 147

1.5 MI SE OF MILTON, Northumberland, PA

Built 1971 Load: 40.8 t ADT: 4,515

SR 4020

Fair

Over: HALLOWING RUN

VILLAGE OF ASHERTON, Northumberland, PA

Built 1921 Load: 40.8 t ADT: 238

EAST FIRST STREET

Fair

Over: NORFOLK SOUTHERN RR

WATSONTOWN BOROUGH, Northumberland, PA

Built 1987 Load: 40.8 t ADT: 1,000

PA 74; SR 0074

Fair

Over: PANTHER CREEK

ROSEBURG, Perry, PA

Built 1992 Load: 40.8 t ADT: 2,162

PA 274; SR 0274

Fair

Over: MONTOUR CREEK

GREEN PARK, Perry, PA

Built 1992 Load: 40.8 t ADT: 1,737

KIMBLES ROAD

Fair

Over: LACKAWAXEN RIVER

KIMBLES @ HYDROELECTRIC, Pike, PA

Built 1961 Load: 40.8 t ADT: 50

PA 443 (53012)

Fair

Over: LITTLE SCHUYLKILL RIVER

NEW RINGGOLD, Schuylkill, PA

Built 1989 Load: 40.8 t ADT: 6,830

MOYERS STATION RD.

Fair

Over: TRIB.TO U.LIT.SWATARA CK

1 M.N.OF PA 895, Schuylkill, PA

Built 1962 Load: 40.8 t ADT: 275

SR 15

Fair

Over: TRIB.TO SUSQUEHANNA RIVE

1.5 MI N OF SHAMOKIN DAM, Snyder, PA

Built 1930 Load: 40.8 t ADT: 16,071

KISSIMMEE RD

Fair

Over: NORTH BRANCH MIDDLE CRK

0.5 MI S OF PORT ANN, Snyder, PA

Built 1961 Load: 40.8 t ADT: 266

PA 31

Fair

Over: US 219

.8 MI.E.OF SOMERSET, Somerset, PA

Built 1973 Load: 40.8 t ADT: 4,716

SR 2026

Fair

Over: TRIB BLUE LICK CREEK

BERKLEYS MILLS, Somerset, PA

Built 1937 Load: 40.8 t ADT: 191

SR 4051

Fair

Over: PAINT CREEK

PAINT BOROUGH, Somerset, PA

Built 1924 Load: 40.8 t ADT: 948

PA TPK (I-76)

Fair

Over: SR 0281

EAST OF SOMERSET INTERCHG, Somerset, PA

Built 1939 Load: 40.8 t ADT: 29,452

T618 OLDMILL ROAD

Fair

Over: MILLER RUN

2 MI.SW.OF BERLIN, Somerset, PA

Built 1916 Load: 40.8 t ADT: 50

SR 154

Fair

Over: OVER SHANERBURG RUN

4 MI W OF LAPORTE, Sullivan, PA

Built 1934 Load: 40.8 t ADT: 298

T-434 NORTON RD

Fair

Over: LICK CREEK

0.5 MI. N OF MILLVIEW, Sullivan, PA

Built 1963 Load: 40.8 t ADT: 54

SR 0081 I-81 SB

Fair

Over: SR 1010 & SUSQUEHANNA RV

GREATBEND TWP .3M S TR171, Susquehanna, PA

Built 1961 Load: 40.8 t ADT: 11,808

SR4022 CAMP CRBYRD

Fair

Over: BALDWIN CREEK

MIDDLETOWN TP .2M E TR858, Susquehanna, PA

Built 1964 Load: 40.8 t ADT: 54

T-765 MELROSE ROAD

Fair

Over: STARRUCCA CREEK

4 MI N OF THOMPSON, Susquehanna, PA

Built 1979 Load: 40.8 t ADT: 50

SR 6

Fair

Over: OVER DANTZ RUN

8 MI W OF WELLSBORO, Tioga, PA

Built 1959 Load: 40.8 t ADT: 2,584

SR 4024

Fair

Over: OVER ELKHORN CREEK

3.75 MI NW OF TIOGA BORO, Tioga, PA

Built 1974 Load: 40.8 t ADT: 201

T-613

Fair

Over: CROOKED CREEK

1.6 MI W OF KEENEYVILLE, Tioga, PA

Built 1991 Load: 40.8 t ADT: 50

WHITE MTN. ROAD

Fair

Over: PENNS CREEK

1000 FT SOUTH OF SR 3002, Union, PA

Built 1935 Load: 40.8 t ADT: 30

SR 38 MAIN STREET

Fair

Over: RICHEY RUN

EMLENTON BOROUGH, Venango, PA

Built 1928 Load: 40.8 t ADT: 1,253

SR 62 RIVERSIDE DR

Fair

Over: OVER SAGE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1942 Load: 40.8 t ADT: 3,539

SR 80 EB/WB

Fair

Over: OVER S F LT SCRUBGRASS C

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1966 Load: 40.8 t ADT: 19,191

Showing 8,101-8,150 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.