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

T-943 MARY ELIZ ST

Good

Over: SPRING CREEK

143 FT EAST INT SR 3010, Centre, PA

Built 1974 Load: 96.9 t ADT: 1,800

SR 1025

Good

Over: NFSRR

NICHOLSON BORO .5M E TR11, Wyoming, PA

Built 1914 Load: 96.9 t ADT: 510

U.S. 202

Good

Over: CHESTER VALLEY TRAIL

1 MILE N. U.S. 30 3473K0, Chester, PA

Built 2016 Load: 96.9 t ADT: 105,727

RAMP E

Good

Over: DYOTT STREET SEWER

GIRARD AVE. INTC. 3591A05, Philadelphia, PA

Built 2017 Load: 96.9 t ADT: 14,120

COLLEGE AVENUE

Good

Over: COBBS CREEK

SW Haverford rd. 3477K09, Delaware, PA

Built 2018 Load: 96.9 t ADT: 5,225

SR 2003

Good

Over: SAW CREEK

PORTER TWP 1.1 M E TR 402, Pike, PA

Built 1951 Load: 98.0 t ADT: 537

SR 0119

Good

Over: 6th Street

0.3mi N of SR 0201, Fayette, PA

Built 2010 Load: 98.9 t ADT: 25,443

SR 0050 SH

Good

Over: MILLERS RUN

1/2 MI FROM WASH CO LINE, Allegheny, PA

Built 1972 Load: 99.8 t ADT: 11,250

SR 0050

Good

Over: MILLERS RUN

1 MI N OF WASH COUNT LINE, Allegheny, PA

Built 1972 Load: 99.8 t ADT: 9,568

BEN AVON LOWRIE RD

Good

Over: BEAR RUN

100 SW LOWR.RUN/MT.NEBO, Allegheny, PA

Built 1988 Load: 99.8 t ADT: 23,000

WIBLE RUN RD

Good

Over: WIBLE RUN

WB04 0.2MI S / SOOSE RD, Allegheny, PA

Built 1991 Load: 99.8 t ADT: 6,583

GLENFIELD RD

Good

Over: KILBUCK RUN

KL09 KILBUCK RUN NO. 9, Allegheny, PA

Built 2003 Load: 99.8 t ADT: 1,900

RAMP C

Good

Over: KILBUCK RUN

50EAST OF SR 4005, Allegheny, PA

Built 1969 Load: 99.8 t ADT: 3,327

SR 4008

Good

Over: KITTANNING RUN

3 MI.W.OF ALTOONA, Blair, PA

Built 1991 Load: 99.8 t ADT: 1,527

US 22

Good

Over: STEWARTS RUN

2.2 M.W.TR219 STEWARTS RN, Cambria, PA

Built 1960 Load: 99.8 t ADT: 20,004

PA 164

Good

Over: TROUT RUN

2.2 MI. NORTH OF BLAIR CO, Cambria, PA

Built 1997 Load: 99.8 t ADT: 1,211

SR 80-I 80

Good

Over: SOUTH FORK BEECH CREEK

SNOW SHOE, Centre, PA

Built 1966 Load: 99.8 t ADT: 16,141

SR 80-I 80

Good

Over: NITTANY CREEK

1 MI W EXIT 161, Centre, PA

Built 1967 Load: 99.8 t ADT: 11,358

SR 80-I 80

Good

Over: NITTANY CREEK

3 MI E MILESBURG, Centre, PA

Built 1967 Load: 99.8 t ADT: 11,545

SR 322-US 322

Good

Over: NURSERY ACCESS ROAD

NURSERY ACCESS ROAD, Centre, PA

Built 1971 Load: 99.8 t ADT: 15,945

SWEDESFORD ROAD

Good

Over: BIKE PATH

NEAR VALLEY FORGE 24C4, Chester, PA

Built 2000 Load: 99.8 t ADT: 11,030

T-528 RAPP ROAD

Good

Over: PINEY CREEK

0.25 mi S of Reidsburg, Clarion, PA

Built 1960 Load: 99.8 t ADT: 50

2008 Park Place Rd

Good

Over: TRIB TO YELLOW BREECHES

0.2 MI.E OF LR 21012, Cumberland, PA

Built 1955 Load: 99.8 t ADT: 697

SR 1014 SPECTOWN R

Good

Over: TRIB TO WICONISCO CREEK

S.W. OF GRATZ, Dauphin, PA

Built 1950 Load: 99.8 t ADT: 2,116

SR 2019

Good

Over: CUCUMBER RUN

STEWART TOWNSHIP, Fayette, PA

Built 1996 Load: 99.8 t ADT: 1,108

SR 0021

Good

Over: LAUREL RUN

FRANKLIN TOWNSHIP, Greene, PA

Built 1966 Load: 99.8 t ADT: 15,752

SR 2018

Good

Over: DUTCH RUN

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 99.8 t ADT: 1,410

SR 22-US 22

Good

Over: HORNING RUN

2 MI NW CUBA MILLS, Juniata, PA

Built 1972 Load: 99.8 t ADT: 19,686

sr 1059 muddy ck.

Good

Over: LITTLE MUDDY CREEK

2MI SOF SWARTZVILLE, Lancaster, PA

Built 1951 Load: 99.8 t ADT: 2,144

SR 4006

Good

Over: OVER LICK RUN

1 MI E OF ENGISH CENTER, Lycoming, PA

Built 1932 Load: 99.8 t ADT: 38

BOWMAN AVENUE

Good

Over: AMTRAK PHIL-HBG.

1 Mi NE US-30 3478-K10, Montgomery, PA

Built 1992 Load: 99.8 t ADT: 6,300

SR 3001

Good

Over: MAHANOY CREEK

VILLAGE OF OTTO, Northumberland, PA

Built 1937 Load: 99.8 t ADT: 70

SR3005;Bistline Rd

Good

Over: Shermans Creek

1.5 MI.S. OF ANDERSONBURG, Perry, PA

Built 1880 Load: 99.8 t ADT: 128

MILL ROAD

Good

Over: PENNS CREEK

3 MI NORTH OF SELINSGROVE, Snyder, PA

Built 1994 Load: 99.8 t ADT: 7,426

SR 2047

Good

Over: KIMBERLY RUN

SOMERSET-BERLIN INTERCHAN, Somerset, PA

Built 1973 Load: 99.8 t ADT: 3,898

SR 2039

Good

Over: MILLARD CREEK

LENOX TWP .3 M N TR 92, Susquehanna, PA

Built 1951 Load: 99.8 t ADT: 514

SR 1001

Good

Over: OVER LAMBS CREEK

4 MI N OF MANSFIELD, Tioga, PA

Built 1993 Load: 99.8 t ADT: 348

SR 0015 (TR-15)

Good

Over: OVER TRIB WB SUSQ RIVER

VILLAGE OF NEW COLUMBIA, Union, PA

Built 1964 Load: 99.8 t ADT: 14,362

SR 3008 KNNRDLL RD

Good

Over: OVER ROBERTS RUN

ROCKLAND TOWNSHIP, Venango, PA

Built 1993 Load: 99.8 t ADT: 969

SR 0088

Good

Over: PIKE RUN

CALIFORNIA BOROUGH, Washington, PA

Built 1990 Load: 99.8 t ADT: 3,813

SR 4049

Good

Over: ARDEN MINES RUN

CHARTIERS TOWNSHIP, Washington, PA

Built 1992 Load: 99.8 t ADT: 7,908

SR 0022

Good

Over: CLOVERLEAF RUN

SALEM TOWNSHIP, Westmoreland, PA

Built 1950 Load: 99.8 t ADT: 29,974

SR 0066

Good

Over: BEAVER RUN

SALEM TOWNSHIP, Westmoreland, PA

Built 1950 Load: 99.8 t ADT: 28,252

SR 0981

Good

Over: LOYALHANNA CREEK

LATROBE BOROUGH, Westmoreland, PA

Built 1918 Load: 99.8 t ADT: 12,934

Bloomfield Avenue

Good

Over: Pauls Run Br.Pennypack

E of Verree Road 09B13, Philadelphia, PA

Built 1960 Load: 99.8 t ADT: 6,000

SR 981

Good

Over: WOLFORD RUN

BELL TOWNSHIP, Westmoreland, PA

Built 1997 Load: 99.8 t ADT: 2,909

SAW MILL RUN BLVD

Good

Over: SAW MILL RUN

NEAR BAUSMAN ST, Allegheny, PA

Built 1999 Load: 99.8 t ADT: 47,071

SAW MILL RUN BLVD

Good

Over: SAW MILL RUN

AT WARRINGTON AVE, Allegheny, PA

Built 1999 Load: 99.8 t ADT: 38,563

RAMP A

Good

Over: BRANCH OF MCCLAREN RUN

1300 FT SOUTH OF EWING RD, Allegheny, PA

Built 1997 Load: 99.8 t ADT: 2,816

SR 3089

Good

Over: BUFFALO RUN

E.HUNTINGTON TWP., Westmoreland, PA

Built 2001 Load: 99.8 t ADT: 1,745

Showing 20,301-20,350 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.