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

BRIDGE STREET

Fair

Over: SEPTA; BETHLEHEM BRANCH

Oreland Sta. ADC 3370-A2, Montgomery, PA

Built 1961 Load: 38.1 t ADT: 4,801

WILD RUN ROAD

Fair

Over: WILD RUN

T380/WILD RUN 2916-G1, Montgomery, PA

Built 1935 Load: 38.1 t ADT: 200

PA TPK (I-276)

Fair

Over: SEPTA RR

EAST OF HATBORO, Montgomery, PA

Built 1954 Load: 38.1 t ADT: 85,801

SR 642

Fair

Over: OVER I-80 EBL AND WBL

4.5 MI NE OF DANVILLE, Montour, PA

Built 1963 Load: 38.1 t ADT: 2,057

SR 4003

Fair

Over: OVER LIMESTONE RUN

VILLAGE OF LIMESTONEVILLE, Montour, PA

Built 1950 Load: 38.1 t ADT: 675

SR 22 (LR 773)

Fair

Over: SR2024 WOOD ST(48084) RR

0.25 MI.W.OF 13 ST.EXIT, Northampton, PA

Built 1954 Load: 38.1 t ADT: 35,152

SR 33 NB(LR 1098)

Fair

Over: T-516 VAN BUREN RD.

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

Built 1972 Load: 38.1 t ADT: 31,243

STOCKER MILL ROAD

Fair

Over: BUSHKILL CREEK

AT ZUCKSVILLE, Northampton, PA

Built 1969 Load: 38.1 t ADT: 200

ASH ROAD

Fair

Over: HOKENDAUQUA CREEK

0.3 M. SOUTH OF PA 248, Northampton, PA

Built 1994 Load: 38.1 t ADT: 200

SR 0061

Fair

Over: OVER SR 2026 & SR 901

VILLAGE OF RANSHAW, Northumberland, PA

Built 1970 Load: 38.1 t ADT: 7,836

SR 1019

Fair

Over: OVER MUDDY RUN

1 MI N.E.OF MILTON, Northumberland, PA

Built 1960 Load: 38.1 t ADT: 503

SR 8001

Fair

Over: OVER COAL RUN

2 MI NE OF PAXINOS, Northumberland, PA

Built 1970 Load: 38.1 t ADT: 3,013

SR 0390 TR 390

Fair

Over: WILSON CREEK

GREENE TWP .4 M N SR 3002, Pike, PA

Built 1957 Load: 38.1 t ADT: 1,203

SR 1009

Fair

Over: LUDINGTON RUN

1 MI N NEWFIELD, Potter, PA

Built 1971 Load: 38.1 t ADT: 86

SR 2009(LR 53007)

Fair

Over: PLUM CREEK

BERNE DRIVE, Schuylkill, PA

Built 1960 Load: 38.1 t ADT: 1,521

T-812 GREEN MT.RD.

Fair

Over: CATAWISSA CREEK

N.OF BRANDONVILLE OFF 924, Schuylkill, PA

Built 1976 Load: 38.1 t ADT: 200

GIRARD MANOR

Fair

Over: CATAWISSA CREEK

S.OF SHEPPTON NR.GIR.MANR, Schuylkill, PA

Built 1929 Load: 38.1 t ADT: 30

ELM ST

Fair

Over: LITTLE SCHUYLKILL RIVER

IN TAMAQUA ON ELM ST., Schuylkill, PA

Built 1978 Load: 38.1 t ADT: 1,000

US 219 NBL

Fair

Over: T685 MILLER ROAD

1.8 MILE SOUTH OF TR 30, Somerset, PA

Built 1969 Load: 38.1 t ADT: 6,276

SR 1023

Fair

Over: OVEN RUN

.5 MI.E.OF ROWENA, Somerset, PA

Built 1962 Load: 38.1 t ADT: 182

SR 1039 (12TH ST)

Fair

Over: PAINT CREEK

WINDBER BORO 12TH.ST.EXT., Somerset, PA

Built 1959 Load: 38.1 t ADT: 4,619

SR 2010

Fair

Over: PINEY RUN

2.9 MI.SE.OF SALISBURY, Somerset, PA

Built 1956 Load: 38.1 t ADT: 226

T718 MILLER RUN RD

Fair

Over: FLAUGHERTY CREEK

.5 MI.S.OF SANDPATCH, Somerset, PA

Built 1963 Load: 38.1 t ADT: 33

T460 WHIPKEY DAM R

Fair

Over: LAUREL HILL CREEK

METZLER, Somerset, PA

Built 1958 Load: 38.1 t ADT: 186

SR 87

Fair

Over: OVER SCAR RUN

2.75 MI E OF FORKSVILLE, Sullivan, PA

Built 1942 Load: 38.1 t ADT: 602

SR 0081 I-81 NB

Fair

Over: SR 2016

LENOX TWP OVER SR 2016, Susquehanna, PA

Built 1961 Load: 38.1 t ADT: 9,285

SR 0081 I-81 SB

Fair

Over: TUNKHANNOCK CREEK

LENOX TWP .1 M N TR 106, Susquehanna, PA

Built 1961 Load: 38.1 t ADT: 9,345

SR 0081 I-81 NB

Fair

Over: SUSQUEHANNA ST

N MILFORD BO OVER SUSQ ST, Susquehanna, PA

Built 1961 Load: 38.1 t ADT: 11,236

SR 0081 I-81 SB

Fair

Over: SUSQUEHANNA STREET

N MILFORD BO OVER SUSQ ST, Susquehanna, PA

Built 1961 Load: 38.1 t ADT: 11,808

SR 0167 TR 167

Fair

Over: TRIB TO SILVER CREEK

SILVER LK TP .8M N SR4008, Susquehanna, PA

Built 1989 Load: 38.1 t ADT: 697

SR 2024

Fair

Over: CAPE POND CREEK

DIMOCK TWP .2 M W SR 2051, Susquehanna, PA

Built 1977 Load: 38.1 t ADT: 1,032

SR 2040 SKYLINE DR

Fair

Over: WEST BR LACKAWANNA RIVER

UNIONDLE BO 1283W TR 171, Susquehanna, PA

Built 1961 Load: 38.1 t ADT: 883

SR 2065

Fair

Over: TUNKHANNOCK CREEK

.1M SE OF SR 92, Susquehanna, PA

Built 1987 Load: 38.1 t ADT: 27

SR 3008

Fair

Over: THOMAS CREEK

SPRGLLE TWP .5M W SR 3017, Susquehanna, PA

Built 1953 Load: 38.1 t ADT: 112

SR 2014

Fair

Over: FALL BROOK

2 MI E OF MORRIS RUN, Tioga, PA

Built 1934 Load: 38.1 t ADT: 354

SR 3016

Fair

Over: ZIMMERMAN CREEK

VILLAGE OF NAUVOO, Tioga, PA

Built 1985 Load: 38.1 t ADT: 172

SR 235

Fair

Over: OVER PENNS CREEK

1 MI W OF GLEN IRON, Union, PA

Built 1952 Load: 38.1 t ADT: 316

SR 80

Fair

Over: OVER I-80

11 MI W OF WHITE DEER, Union, PA

Built 1970 Load: 38.1 t ADT: 61

ST. LOUIS STREET

Fair

Over: LIMESTONE RUN

ST. LOUIS ST. LEWISBURG B, Union, PA

Built 1980 Load: 38.1 t ADT: 550

SR 62

Fair

Over: OVER VALENTINE CREEK

CONEWANGO TOWNSHIP, Warren, PA

Built 1941 Load: 38.1 t ADT: 10,474

SR 0019

Fair

Over: SR 1010

PETERS TOWNSHIP, Washington, PA

Built 1990 Load: 38.1 t ADT: 23,832

SR 0079

Fair

Over: MONTGOMERY RUN

AMWELL TOWNSHIP, Washington, PA

Built 1966 Load: 38.1 t ADT: 24,178

SR 0221

Fair

Over: BUFFALO CREEK

BUFFALO TOWNSHIP, Washington, PA

Built 1915 Load: 38.1 t ADT: 1,602

SR 0519

Fair

Over: CHARTIERS CREEK

HOUSTON BOROUGH, Washington, PA

Built 1990 Load: 38.1 t ADT: 11,034

SR 1007

Fair

Over: BRANCH OF CHARTIERS CK.

CHARTIERS TOWNSHIP, Washington, PA

Built 1962 Load: 38.1 t ADT: 3,906

SR 1039

Fair

Over: SR 0079

NORTH STRABANE TOWNSHIP, Washington, PA

Built 1965 Load: 38.1 t ADT: 1,931

SR 2011

Fair

Over: LITTLE DANIELS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1910 Load: 38.1 t ADT: 1,601

SR 2019

Fair

Over: PIGEON CREEK

ELLSWORTH BOROUGH, Washington, PA

Built 1920 Load: 38.1 t ADT: 898

SR 2020

Fair

Over: LITTLE TENMILE CREEK

AMWELL & W BETHLEHEM TWP., Washington, PA

Built 1949 Load: 38.1 t ADT: 301

SR 3021

Fair

Over: MIDDLE WHEELING CREEK

WEST FINLEY TOWNSHIP, Washington, PA

Built 1953 Load: 38.1 t ADT: 761

Showing 7,251-7,300 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.