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 879-PA 879

Fair

Over: WOLF RUN

CLEARFIELD, Clearfield, PA

Built 1974 Load: 99.8 t ADT: 16,504

WASHINGTONVILLE RD

Fair

Over: TRIBUTARY TO MUD CREEK

1 MILE SW OF JERSEYTOWN, Columbia, PA

Built 1932 Load: 99.8 t ADT: 1,315

SR 3010

Fair

Over: MUGSER RUN

3.5 MI W OF NUMIDA, Columbia, PA

Built 1931 Load: 99.8 t ADT: 478

SR 1018 ARMSTRONG

Fair

Over: OVER MUDDY CREEK

STEUBEN TOWNSHIP, Crawford, PA

Built 1990 Load: 99.8 t ADT: 82

SR 3025 KENNEDY HL

Fair

Over: OVER VAN HORNE RUN

VERNON TOWNSHIP, Crawford, PA

Built 1996 Load: 99.8 t ADT: 6,644

PA 641; NEWVILLE R

Fair

Over: BIG SPRING CREEK

NEWVILLE, Cumberland, PA

Built 1957 Load: 99.8 t ADT: 8,413

US 22/322; SR 0022

Fair

Over: PRIVATE DRIVE;FISHING CR

0.1 MI S OF PA 443 INTER, Dauphin, PA

Built 1977 Load: 99.8 t ADT: 37,718

ELMWOOD AVENUE

Fair

Over: MUCKINIPATTIS CREEK

0.4Mi S SR13 3698-E7, Delaware, PA

Built 1930 Load: 99.8 t ADT: 2,166

PINE STREET

Fair

Over: DARBY CREEK

.25MI E.OF US-13 22-C7, Delaware, PA

Built 1921 Load: 99.8 t ADT: 1,971

EAST 9TH STREET

Fair

Over: RIDLEY CREEK

.2MI.N OF PA-291 27-E8, Delaware, PA

Built 1929 Load: 99.8 t ADT: 1,505

SR 90 EB/WB

Fair

Over: OVER WALNUT CREEK

SUMMIT TOWNSHIP, Erie, PA

Built 1959 Load: 99.8 t ADT: 35,138

SR 0040

Fair

Over: REDSTONE CREEK

SOUTH UNION TOWNSHIP, Fayette, PA

Built 1993 Load: 99.8 t ADT: 11,127

SR 0051

Fair

Over: ALLEN RUN

FRANKLIN TOWNSHIP, Fayette, PA

Built 1957 Load: 99.8 t ADT: 16,349

SR 0119

Fair

Over: CAMP RUN

POINT MARION BOROUGH, Fayette, PA

Built 1940 Load: 99.8 t ADT: 4,695

SR 0166

Fair

Over: JACOBS CREEK

NICHOLSON TOWNSHIP, Fayette, PA

Built 1952 Load: 99.8 t ADT: 1,728

SR 0201

Fair

Over: OPPOSSUM RUN

CITY OF CONNELLSVILLE, Fayette, PA

Built 1947 Load: 99.8 t ADT: 6,816

SR 0906

Fair

Over: SPEERS RUN

BELLE VERNON BOROUGH, Fayette, PA

Built 1949 Load: 99.8 t ADT: 4,618

SR 1037

Fair

Over: CONNELL RUN

CITY OF CONNELLSVILLE, Fayette, PA

Built 1908 Load: 99.8 t ADT: 9,163

SR 2027

Fair

Over: SHUTES RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1941 Load: 99.8 t ADT: 7,573

SR 2027

Fair

Over: COVE RUN

NORTH UNION TOWNSHIP, Fayette, PA

Built 1941 Load: 99.8 t ADT: 7,573

SR 3013

Fair

Over: MIDDLE RUN

GERMAN TOWNSHIP, Fayette, PA

Built 1962 Load: 99.8 t ADT: 136

SR 0021

Fair

Over: COAL LICK RUN

FRANKLIN TOWNSHIP, Greene, PA

Built 1965 Load: 99.8 t ADT: 8,153

SR 0079

Fair

Over: CALVIN RUN

PERRY TOWNSHIP, Greene, PA

Built 1969 Load: 99.8 t ADT: 20,472

SR 0079

Fair

Over: WHITELEY CREEK

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 99.8 t ADT: 20,383

SR 2005

Fair

Over: WHITELEY CREEK

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 99.8 t ADT: 128

SR 2019

Fair

Over: LITTLE WHITELEY CREEK

CUMBERLAND TOWNSHIP, Greene, PA

Built 1953 Load: 99.8 t ADT: 298

SR 8003

Fair

Over: WHITELEY CREEK

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 99.8 t ADT: 515

SR 8003

Fair

Over: WHITELEY CREEK

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 99.8 t ADT: 477

US 522

Fair

Over: TANNERY RUN

1.2 MILE NORTH OF SR 2007, Huntingdon, PA

Built 1966 Load: 99.8 t ADT: 2,713

PA 913

Fair

Over: SHOUPS RUN

0.2 MILE WEST OF SR 3015, Huntingdon, PA

Built 1937 Load: 99.8 t ADT: 2,043

T613 OLD ROUTE 22

Fair

Over: ROBINSON RUN

2 MI.S.OF ALEXANDRIA, Huntingdon, PA

Built 1938 Load: 99.8 t ADT: 989

T504 (PENNA.AVE.)

Fair

Over: CROOKED CREEK

SMITHFIELD TOWNSHIP, Huntingdon, PA

Built 1977 Load: 99.8 t ADT: 759

T363 Grange Hall R

Fair

Over: SUGAR CREEK

1 MI.W.OF TODD, Huntingdon, PA

Built 1971 Load: 99.8 t ADT: 347

T-833 OLSON RD

Fair

Over: PICKERING RUN

BTW SR119 & T681, Indiana, PA

Built 1965 Load: 99.8 t ADT: 175

LOCUST STREET

Fair

Over: MARSH RUN

BTW S 4TH ST & S 5TH ST, Indiana, PA

Built 1961 Load: 99.8 t ADT: 775

MAPLE STREET

Fair

Over: MARSH RUN

BTW S 7TH & FLEMING AVE, Indiana, PA

Built 1961 Load: 99.8 t ADT: 2,000

4TH ST & CHURCH ST

Fair

Over: MARSH RUN

INT OF 4TH ST & CHURCH ST, Indiana, PA

Built 1961 Load: 99.8 t ADT: 2,500

SR2007

Fair

Over: CLOVER RUN

FILTER PLANT, Jefferson, PA

Built 1937 Load: 99.8 t ADT: 81

T387 WILLOW RUN RD

Fair

Over: WILLOW RUN

300 FT SOUTH OF SR 850, Juniata, PA

Built 1948 Load: 99.8 t ADT: 100

SR 0011 TR 11

Fair

Over: LEGGETS CREEK

CITY SCRANTON .1M N EXPWY, Lackawanna, PA

Built 1993 Load: 99.8 t ADT: 19,134

SR 0524 TR 524

Fair

Over: KENNEDY CREEK

SCOTT TWP .2 M W I-81, Lackawanna, PA

Built 1986 Load: 99.8 t ADT: 1,003

MAHONING AV

Fair

Over: EDWARDS RUN

100 SOUTH OF SR 0168, Lawrence, PA

Built 1953 Load: 99.8 t ADT: 5,246

PA TURNPIKE (I-76)

Fair

Over: BEAVER DAM RUN

WEST OF NEW BEAVER, Lawrence, PA

Built 1952 Load: 99.8 t ADT: 19,297

SR145(LR555)

Fair

Over: COPLAY CREEK

1 MI.S.OF PA329, Lehigh, PA

Built 1941 Load: 99.8 t ADT: 17,057

SR 0940 TR 940

Fair

Over: BIG BLACK CREEK

HAZLE TWP .25 M E TR 309, Luzerne, PA

Built 1986 Load: 99.8 t ADT: 6,558

SR 62 CONNELLY BLV

Fair

Over: OVER PINE RUN

CITY OF SHARON, Mercer, PA

Built 1955 Load: 99.8 t ADT: 10,523

SR 62 CONNELLY BLV

Fair

Over: OVER PINE RUN

CITY OF SHARON, Mercer, PA

Built 1955 Load: 99.8 t ADT: 10,523

SR 62 CONNELLY BLV

Fair

Over: OVER PINE RUN

CITY OF HERMITAGE, Mercer, PA

Built 1955 Load: 99.8 t ADT: 10,523

SR 62 CONNELLY BLV

Fair

Over: OVER PINE RUN

CITY OF HERMITAGE, Mercer, PA

Built 1955 Load: 99.8 t ADT: 10,523

SR 4021 BEATTY SCH

Fair

Over: OVER FREELAND RUN

SALEM TOWNSHIP, Mercer, PA

Built 1915 Load: 99.8 t ADT: 320

Showing 12,351-12,400 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.