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

PA 26

Good

Over: STANDING STONE CREEK

275 N 305 McALEVYS FORT, Huntingdon, PA

Built 2010 Load: 49.0 t ADT: 2,618

SR 0519

Good

Over: Plum Run

0.6 mi N of SR 0079, Washington, PA

Built 2010 Load: 49.0 t ADT: 2,840

SR 187

Good

Over: BENNETTS CREEK

.5 MILES NORTH OF DURELL, Bradford, PA

Built 2011 Load: 49.0 t ADT: 616

PA TPK (TOLL 43)

Good

Over: Jennings Run Fan Hollow

West of Exit M15, Fayette, PA

Built 2008 Load: 49.0 t ADT: 1,000

PA TPK (I-76)

Good

Over: LR 77- SR 0018

OS Bvr Vly Toll, Beaver, PA

Built 2014 Load: 49.0 t ADT: 5,000

Laurel Lake Road

Good

Over: Cranberry Creek

1.6 MI EAST OF PA611, Monroe, PA

Built 2003 Load: 49.0 t ADT: 2,000

Wild Turkey Lane

Good

Over: Indian Run Tributary

2 MI S OF PA 895, Schuylkill, PA

Built 2010 Load: 49.0 t ADT: 25

Hillside Road

Good

Over: Huntsville Creek

850FT FROM CHASE RD, Luzerne, PA

Built 2012 Load: 49.0 t ADT: 3,000

West Packer Avenue

Good

Over: Hicks Creek

Exeter Borough, Luzerne, PA

Built 1983 Load: 49.0 t ADT: 150

COTTON STREET

Good

Over: MANAYUNK CANAL

WEST OF MAIN STREET, Philadelphia, PA

Built 1998 Load: 49.0 t ADT: 10

WILLOW ROAD

Good

Over: WHITE RUN

WILLOW ROAD BRIDGE, Adams, PA

Built 1993 Load: 49.0 t ADT: 100

SOUTH CHURCH ST

Good

Over: TRIB. E. BR. ANTIETAM CR

150 N OF CEMETERY AVE, Franklin, PA

Built 2009 Load: 49.0 t ADT: 600

LITTLE LEAGUE ROAD

Good

Over: BEAR BROOK

AT MADISONVILLE RD, Lackawanna, PA

Built 2011 Load: 49.0 t ADT: 100

LILY LAKE ROAD

Good

Over: TRIB 28835 TO ACKERLY

320 FT NORTH of RT 632, Lackawanna, PA

Built 2014 Load: 49.0 t ADT: 100

LEAMAN ROAD

Good

Over: TRIB TO PEQUEA CK

2500 E. OF STRASBURG PK., Lancaster, PA

Built 1978 Load: 49.0 t ADT: 600

HENSEL RD

Good

Over: HOUSTON RUN

NORTH OF AMJSH RD, Lancaster, PA

Built 1985 Load: 49.0 t ADT: 200

CHASE RD

Good

Over: HUNTSVILLE CREEK

100FT FROM HILLSIDE RD, Luzerne, PA

Built 2012 Load: 49.0 t ADT: 4,000

INDUSTRIAL RD

Good

Over: NEWPORT CREEK

1/4 MILE FROM MARKET ST, Luzerne, PA

Built 1983 Load: 49.0 t ADT: 150

MEADOWBROOK RD

Good

Over: MEADOW BROOK

350FT N VALLEY RD, Montgomery, PA

Built 2008 Load: 49.0 t ADT: 500

PAUL BROOK RD

Good

Over: MEADOW BROOK

300FT N VALLEY RD, Montgomery, PA

Built 2008 Load: 49.0 t ADT: 500

LINE ROAD T-442

Good

Over: E BRANCH CORODUS CK

3.3 NE SHREWSBURY, York, PA

Built 2021 Load: 49.0 t ADT: 100

LITTLE CREEK ROAD

Good

Over: LITTLE MARTINS CREEK

0.4 MILE NORTH OF PA 611, Northampton, PA

Built 2023 Load: 49.0 t ADT: 350

NEWPORT PIKE

Good

Over: OFFICERS RUN

ATGLEN 26H12, Chester, PA

Built 1954 Load: 49.2 t ADT: 10,974

SR 0070

Good

Over: SR 0019

SOUTH STRABANE TOWNSHIP, Washington, PA

Built 1960 Load: 49.2 t ADT: 25,488

I-76

Good

Over: TENTH STREET

TENTH ST.OVERPASS 37F06, Philadelphia, PA

Built 1957 Load: 49.2 t ADT: 80,588

SR 0079 SB

Good

Over: SR 1047 (Manifold Road)

2.4 mi N of 79N/70W, Washington, PA

Built 2014 Load: 49.2 t ADT: 24,317

Bear Swamp Rd

Good

Over: South Br Canawacta Creek

THMPSN TWP 1.7M N SR 1004, Susquehanna, PA

Built 2015 Load: 49.2 t ADT: 101

Bakerstown Rd

Good

Over: Lardintown Run

200 West of SR 1031, Allegheny, PA

Built 2015 Load: 49.2 t ADT: 3,497

SR 0220 SH

Good

Over: S. Br. Towanda Creek

VILLAGE OF STEVENSON, Bradford, PA

Built 2016 Load: 49.2 t ADT: 3,871

OWL HOLLOW RD

Good

Over: BUFFALO CREEK

BEECHDALE, Somerset, PA

Built 2016 Load: 49.2 t ADT: 235

SEVEN CREEKS RD

Good

Over: CASTILE RUN

MORGAN TOWNSHIP, Greene, PA

Built 2017 Load: 49.2 t ADT: 25

Penns Valley Road

Good

Over: Pine Creek

WOODWARD, Centre, PA

Built 2018 Load: 49.2 t ADT: 2,331

Lovedale Road

Good

Over: Wylie Run

85 NE of Eliz-Linc. Line, Allegheny, PA

Built 2017 Load: 49.2 t ADT: 7,121

COFFEE RUN RD

Good

Over: COFFEE RUN

209003 SOUTH OF T-565 INT, Lawrence, PA

Built 2020 Load: 49.2 t ADT: 50

SR0403

Good

Over: Dixon Run

0.1 mi S SR 1012 Intersec, Indiana, PA

Built 2019 Load: 49.2 t ADT: 1,849

NO DATA ENTERED

Good

Over: WINTERGREEN RUN

NO DATA ENTERED, McKean, PA

Built 2017 Load: 49.2 t ADT: 10

T-627

Good

Over: PA TPK (PA 66)

SALEM TWP, Westmoreland, PA

Built 1993 Load: 49.6 t ADT: 1,000

JEFFERSON RD

Good

Over: GRIMES RUN

FRANKLIN TOWNSHIP, Greene, PA

Built 2017 Load: 49.6 t ADT: 4,152

Smokestown Rd

Good

Over: UNT LITTLE COCALICO CRK

1 MI NE DENVER, Lancaster, PA

Built 2017 Load: 49.6 t ADT: 846

LAYFIELD ROAD

Good

Over: W Branch Perkiomen Cr

PERKIOMEN HEIGHTS 02D13, Montgomery, PA

Built 2017 Load: 49.6 t ADT: 7,243

PHILMONT AVENUE

Good

Over: HUNTINGDON VALLEY CREEK

1.5MI.WEST PHILA. 33C07, Montgomery, PA

Built 2018 Load: 49.6 t ADT: 12,821

SR 0081 I-81 SB

Good

Over: SR 0315 TR 315

PITTSTON TWP EXIT 175A SB, Luzerne, PA

Built 2018 Load: 49.6 t ADT: 28,322

SR 4007

Good

Over: NORTH BROOK

3 MI EAST OF BROOKFIELD, Tioga, PA

Built 2009 Load: 49.8 t ADT: 150

SR 28 NB

Good

Over: KITTANNING PIKE CREEK

3/4 MI.WEST OF HIGH.PARK, Allegheny, PA

Built 1963 Load: 49.9 t ADT: 37,917

00 0028 S.B.

Good

Over: SCOUT RESERVATION ROAD

SHARPSBURG O/SCOUT RES.RD, Allegheny, PA

Built 1963 Load: 49.9 t ADT: 37,663

SR 0051 NB SB

Good

Over: LEWIS RUN

1/2 MI S PLEAS HILLS LINE, Allegheny, PA

Built 1935 Load: 49.9 t ADT: 23,832

RAYMOND SHAFER HW

Good

Over: SR 0022

I-79 N.B. OVER 0376 EB-WB, Allegheny, PA

Built 1973 Load: 49.9 t ADT: 24,205

PA TPK (I-376)

Good

Over: SR 0051

CHIPPEWA TWP, Beaver, PA

Built 1992 Load: 49.9 t ADT: 9,871

PA TPK (I-376)

Good

Over: SR 0051

CHIPPEWA TWP, Beaver, PA

Built 1992 Load: 49.9 t ADT: 9,871

T-689

Good

Over: PA TPK (I-76)

NEAR NEW GALILEE, Beaver, PA

Built 2009 Load: 49.9 t ADT: 200

Showing 18,801-18,850 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.