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

SR0220(LR1073WBL)

Fair

Over: OVER RAMP A-1

3 MI WEST NEWBERRY, Lycoming, PA

Built 1971 Load: 47.2 t ADT: 8,963

SR 973

Fair

Over: LYCOMING CREEK

0.25 MI W OF COGAN STA., Lycoming, PA

Built 1941 Load: 47.2 t ADT: 1,161

S.R. 3015

Fair

Over: OVER DAUGHERTYS RUN

3 MI EAST OF LINDEN, Lycoming, PA

Built 1969 Load: 47.2 t ADT: 914

US 15 NB

Fair

Over: PA 973

PERRYVILLE, Lycoming, PA

Built 1993 Load: 47.2 t ADT: 8,196

BOSTON RD CTY #108

Fair

Over: MUNCY CREEK

PICTURE ROCKS BOROUGH, Lycoming, PA

Built 1989 Load: 47.2 t ADT: 200

T-385 WHISKEY RD

Fair

Over: BELLTOWN RUN

300 NE OF T-707, Mifflin, PA

Built 1980 Load: 47.2 t ADT: 251

METZGAR RD (T-237)

Fair

Over: LAKE CREEK

SW OF HAMILTON SQUARE, Monroe, PA

Built 1922 Load: 47.2 t ADT: 278

SKIPPACK PIKE

Fair

Over: WISSAHICKON CREEK

BET. TP & 309 30H7/3369E1, Montgomery, PA

Built 1987 Load: 47.2 t ADT: 17,747

SCHUYLKILL EXPWAY.

Fair

Over: NORFOLK SOUTHERN

PENCOYD VIADUCT 3479E07, Montgomery, PA

Built 1952 Load: 47.2 t ADT: 123,458

VALLEY FORGE ROAD

Fair

Over: ZACHARIAS CREEK

CENTERPOINT 21J6/3143E9, Montgomery, PA

Built 1970 Load: 47.2 t ADT: 15,944

WHITEHALL ROAD

Fair

Over: KEPNER CREEK

NORRISTOWN 28H2/3255D7, Montgomery, PA

Built 1911 Load: 47.2 t ADT: 8,826

GILBERTSVILLE ROAD

Fair

Over: MINISTER CREEK

GILBERTSVILLE 3027B01, Montgomery, PA

Built 1933 Load: 47.2 t ADT: 4,941

KRAUSSDALE ROAD

Fair

Over: MACOBY CREEK

T207/MACOBY CREEK 2804-K3, Montgomery, PA

Built 1928 Load: 47.2 t ADT: 600

FENNEL ROAD

Fair

Over: STONY RUN

T302/STONY RUN 2805-F7, Montgomery, PA

Built 1931 Load: 47.2 t ADT: 200

I-78WB(LR 1045)

Fair

Over: SR 2006(EASTON RD.)

OVER SR2006(EASTON RD), Northampton, PA

Built 1988 Load: 47.2 t ADT: 26,739

SR 2040(LR 773SPE)

Fair

Over: SPRING BROOK

25TH ST. INTERCHANGE, Northampton, PA

Built 1954 Load: 47.2 t ADT: 8,111

LITTLE CREEK ROAD

Fair

Over: LITTLE MARTINS CREEK

3 M. NORTH OF PA 611, Northampton, PA

Built 1969 Load: 47.2 t ADT: 200

FOX GAP ROAD

Fair

Over: MARTINS CREEK

1 MI N OF EAST BANGOR, Northampton, PA

Built 1979 Load: 47.2 t ADT: 530

NORTHAMPTON ST

Fair

Over: SILVER CREEK

SOUTH OF WATER ST, Northampton, PA

Built 1920 Load: 47.2 t ADT: 1,900

SR 54

Fair

Over: DELAWARE RUN

3 MI NW OF DEWART, Northumberland, PA

Built 1954 Load: 47.2 t ADT: 2,296

SR 2001

Fair

Over: LITTLE ROARING CREEK

4 MI SE OF RIVERSIDE BORO, Northumberland, PA

Built 1922 Load: 47.2 t ADT: 128

OLD SR 2035/40/0

Fair

Over: OVER N BR SHAMOKIN CRK

0.5 M SE OF STRONG, Northumberland, PA

Built 1992 Load: 47.2 t ADT: 4,926

DENTLER ROAD

Fair

Over: UNT DELAWARE RUN

3 MI NE OF WATSONTOWN, Northumberland, PA

Built 1950 Load: 47.2 t ADT: 200

PA 233; SR 0233

Fair

Over: MONTOUR CREEK

NEAR LANDISBURG, Perry, PA

Built 1992 Load: 47.2 t ADT: 1,546

SR 4010

Fair

Over: LITTLE BUFFALO CREEK

1 MI SW OF NEWPORT, Perry, PA

Built 1940 Load: 47.2 t ADT: 910

T-471 DOGWOOD LN

Fair

Over: PINE CREEK

South of FT LEBANON Rd, Schuylkill, PA

Built 1992 Load: 47.2 t ADT: 30

MIDDLE RD

Fair

Over: MIDDLE CREEK

2 MI NE OF MCCLURE, Snyder, PA

Built 1962 Load: 47.2 t ADT: 317

SR 2047(0510&0511)

Fair

Over: US 219 (0520 & 0521)

BERLIN-SOMERSET INTERCHNG, Somerset, PA

Built 1973 Load: 47.2 t ADT: 3,898

SR 3019

Fair

Over: COXES CREEK

1 MI.N.OF ROCKWOOD, Somerset, PA

Built 1998 Load: 47.2 t ADT: 328

SR 3025

Fair

Over: KIMBERLY RUN

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

Built 1992 Load: 47.2 t ADT: 1,354

PA TPK RAMPS

Fair

Over: PA TPK (I-76)

SOMERSET INTERCHANGE, Somerset, PA

Built 2004 Load: 47.2 t ADT: 5,292

SR 4001

Fair

Over: OVER HOAGLAND BRANCH

9 MI W OF FORKSVILLE, Sullivan, PA

Built 1937 Load: 47.2 t ADT: 366

SR 4018

Fair

Over: OVER MARSH RUN

BORO OF DUSHORE, Sullivan, PA

Built 1964 Load: 47.2 t ADT: 997

SR 0081 I-81 NB

Fair

Over: TWP 582 & BUTLER CREEK

HARFORD TWP 1 M N TR 92, Susquehanna, PA

Built 1961 Load: 47.2 t ADT: 10,559

SR 4044

Fair

Over: BR APOLACON CREEK

APOLACON TWP .1M E SR4013, Susquehanna, PA

Built 1953 Load: 47.2 t ADT: 145

SR 287

Fair

Over: OVER CROOKED CR.

0.25 MI S OF MIDDLEBURY C, Tioga, PA

Built 1940 Load: 47.2 t ADT: 4,387

SR 1012

Fair

Over: OVER MILL CREEK

1.5 MI NE OF ROSEVILLE, Tioga, PA

Built 1960 Load: 47.2 t ADT: 192

SR 1016

Fair

Over: SEELEY CREEK

1 MI EAST JOBS CORNERS, Tioga, PA

Built 1983 Load: 47.2 t ADT: 69

SR 3001

Fair

Over: CEDAR RUN

2.5 MI N OF CEDAR RUN, Tioga, PA

Built 1895 Load: 47.2 t ADT: 21

T-481 (CTY BR. 1)

Fair

Over: CROOKED CREEK

0.2 MI W. OF SHORTSVILLE, Tioga, PA

Built 1988 Load: 47.2 t ADT: 50

COUNTY BR # 10

Fair

Over: TURTLE CREEK

2.0 MI SSE OF LINNTOWN, Union, PA

Built 1989 Load: 47.2 t ADT: 108

SR 322 28TH DIV.HY

Fair

Over: OVER WARREN RUN

CANAL TOWNSHIP, Venango, PA

Built 1966 Load: 47.2 t ADT: 3,977

SR 1004 EAGLE ROCK

Fair

Over: OVER PITHOLE CREEK

CORNPLANTER TOWNSHIP, Venango, PA

Built 1897 Load: 47.2 t ADT: 87

T-391 VAN ROAD

Fair

Over: OVER TARKLIN CREEK

CRANBERRY TOWNSHIP, Venango, PA

Built 1992 Load: 47.2 t ADT: 100

Creek Road

Fair

Over: EAST BRANCH SUGAR CREEK

OAKLAND TOWNSHIP, Venango, PA

Built 1905 Load: 47.2 t ADT: 100

SR 62

Fair

Over: OVER BULLY RUN

WATSON TOWNSHIP, Warren, PA

Built 1926 Load: 47.2 t ADT: 1,125

SR 0079

Fair

Over: SR 0980

CANNONSBURG BOROUGH, Washington, PA

Built 1966 Load: 47.2 t ADT: 26,243

SR 0980

Fair

Over: BRANCH OF MILLERS RUN

CECIL TOWNSHIP, Washington, PA

Built 1985 Load: 47.2 t ADT: 2,730

SR 2023

Fair

Over: PIGEON CREEK

FALLOWFIELD TOWNSHIP, Washington, PA

Built 1984 Load: 47.2 t ADT: 651

SR 3009

Fair

Over: BUFFALO CREEK

BUFFALO TOWNSHIP, Washington, PA

Built 1965 Load: 47.2 t ADT: 330

Showing 10,051-10,100 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.