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

ON TSR 602

Good

Over: KINZUA CREEK

1 MI N MT JEWETT, McKean, PA

Built 2017 Load: 32.4 t ADT: 100

SR 8011 Ramp K

Good

Over: Mill Creek

.2 MI S OF SR 124 INTER, York, PA

Built 2017 Load: 32.4 t ADT: 5,142

SR 4016

Good

Over: CSX RR

FAIRVIEW TWP, Erie, PA

Built 2018 Load: 32.4 t ADT: 7,437

SR 4016

Good

Over: CSX RR

FAIRVIEW TWP, Erie, PA

Built 2018 Load: 32.4 t ADT: 7,437

WALNUT STREET

Good

Over: EAST BR PERKIOMEN CREEK

100FT N SR152 ADC 2920-C2, Bucks, PA

Built 2018 Load: 32.4 t ADT: 5,300

Lefevre Road

Good

Over: Little Bushkill Creek

0.5 MI EAST OF PA 191, Northampton, PA

Built 2019 Load: 32.4 t ADT: 250

T-841 CENTER ROAD

Good

Over: CUSSEWAGO CREEK

2.5 MI.NW MOSIERTOWN, Crawford, PA

Built 2019 Load: 32.4 t ADT: 250

T-540 FRY ROAD

Good

Over: WOLF RUN

2.5 mi NW of Saegertown, Crawford, PA

Built 2019 Load: 32.4 t ADT: 250

SR 1010 Farm ville

Good

Over: CONESTOGA RIVER

0.5 MI EAST OF BROWSTOWN, Lancaster, PA

Built 2019 Load: 32.4 t ADT: 1,727

OLD WILLOW AVENUE

Good

Over: HOLBERT CREEK

ADJACENT TO SR 2009, Wayne, PA

Built 2019 Load: 32.4 t ADT: 250

T-343 RESERVOIR RD

Good

Over: TEMPLE CREEK

600 WEST OF PONT RD, Erie, PA

Built 2019 Load: 32.4 t ADT: 84

T-361 ECHO HILL RD

Good

Over: TRIB TO WALNUT CREEK

MILLCREEK TWP, Erie, PA

Built 2019 Load: 32.4 t ADT: 100

OLD FRENCH ROAD

Good

Over: LEBOEUF CREEK

SUMMIT TWP, Erie, PA

Built 2019 Load: 32.4 t ADT: 100

LAUREL RUN RD

Good

Over: LAUREL RUN

5 SW LNDISBRG. LAUREL RUN, Perry, PA

Built 2019 Load: 32.4 t ADT: 75

T-300 STATE LINE

Good

Over: ASHTABULA CREEK

1100 S OF W CHERRY HILL, Erie, PA

Built 2019 Load: 32.4 t ADT: 93

T-320 HUNTLEY RD

Good

Over: OVER SR 90 EB/WB

SPRINGFIELD TOWNSHIP, Erie, PA

Built 2019 Load: 32.4 t ADT: 151

Fox Road

Good

Over: E. Branch Monocacy Creek

NE of Bath, Northampton, PA

Built 2020 Load: 32.4 t ADT: 100

Club Road

Good

Over: Hokendauqua Creek

0.7 MI North of PA 248, Northampton, PA

Built 2020 Load: 32.4 t ADT: 100

Countyline Road

Good

Over: BIG RUN

0.2 mi W of Houk Rd, Lawrence, PA

Built 2020 Load: 32.4 t ADT: 250

SR 2015

Good

Over: POTTER RUN

1 MI SE POTTERS MILLS, Centre, PA

Built 2020 Load: 32.4 t ADT: 1,852

T-346 WALLACE AVE

Good

Over: over Linesville Creek

CONNEAUT TOWNSHIP, Crawford, PA

Built 2020 Load: 32.4 t ADT: 250

SR0861

Good

Over: Leatherwood Creek

SOUTH LEATHERWOOD, Clarion, PA

Built 2020 Load: 32.4 t ADT: 1,481

SR 1046

Good

Over: Straight Run

STRAIGHT RUN NO.2, Indiana, PA

Built 2021 Load: 32.4 t ADT: 148

PA TPK 0576

Good

Over: Little Raccoon Run

0.3 mi south of Candor Rd, Washington, PA

Built 2016 Load: 32.4 t ADT: 9,999

MILLER ROAD

Good

Over: OUGHOUGHTON CREEK

1 M. NORTH OF SR 1004, Northampton, PA

Built 2021 Load: 32.4 t ADT: 100

BEAR ROAD

Good

Over: MILL CREEK

SR 4009 (MILL CREEK RD), Lehigh, PA

Built 2021 Load: 32.4 t ADT: 150

T-581 ELK CREEK RD

Good

Over: Elk Creek

1.5 MI W OF SR 19, Erie, PA

Built 2021 Load: 32.4 t ADT: 45

CEMETERY ROAD

Good

Over: SINNEMAHONING CREEK

500 FT SE OF SR 3001, Potter, PA

Built 2021 Load: 32.4 t ADT: 20

SR 0228

Good

Over: Cool Springs Drive

800 E of SR 0079, Butler, PA

Built 2020 Load: 32.4 t ADT: 10,000

T-539

Good

Over: Jemison Creek

2 MI S OF PHILLIPS, Tioga, PA

Built 2022 Load: 32.4 t ADT: 130

SR 4027

Good

Over: HUTCHINSON RUN

1.2 MILES SOUTH OF SR 453, Blair, PA

Built 2022 Load: 32.4 t ADT: 5,826

T-373 McGAHEN HILL

Good

Over: TRIB TO FRENCH CREEK

250 W OF T-560, Erie, PA

Built 2022 Load: 32.4 t ADT: 50

SR 0019

Good

Over: BR.BRUSH RUN

AT CIRCLE DRIVE, Allegheny, PA

Built 1940 Load: 32.7 t ADT: 24,309

SR 0028 NB

Good

Over: CENTER AVE.

ASPINWALL OVER CENTER AVE, Allegheny, PA

Built 1965 Load: 32.7 t ADT: 38,117

SR 0028 SB

Good

Over: CENTER AVE

ASPINWALL OVER CENTER AVE, Allegheny, PA

Built 1965 Load: 32.7 t ADT: 34,577

RAYMOND E WILT HW

Good

Over: LOWRIES RUN

AT CAMP HORNE INTERCHANGE, Allegheny, PA

Built 1987 Load: 32.7 t ADT: 42,806

GOLDEN MILE HY

Good

Over: PIERSONS RUN

50S.OF INTER.W/SR 2086, Allegheny, PA

Built 1950 Load: 32.7 t ADT: 17,806

MILLERS RUN RD

Good

Over: MILLERS RUN

400 NORTHWEST OF SR 0050, Allegheny, PA

Built 2000 Load: 32.7 t ADT: 5,384

BAKERSTOWN RD

Good

Over: BRUSH CREEK

150E.OF INTER.W/SR 4016, Allegheny, PA

Built 1940 Load: 32.7 t ADT: 11,258

PA TPK (I-76)

Good

Over: N FORK PINE CREEK

WEST OF GIBSONIA, Allegheny, PA

Built 1952 Load: 32.7 t ADT: 30,022

KINGS SCHOOL RD

Good

Over: PINEY FORK NORTH BRANCH

PY02 N BR PINEY FORK #2, Allegheny, PA

Built 1994 Load: 32.7 t ADT: 2,968

RAMP D

Good

Over: RAMP A

WILKINSBURG INTERCHANGE, Allegheny, PA

Built 1952 Load: 32.7 t ADT: 5,831

RAMP A

Good

Over: RAMP F

WILKINSBURG INTERCHANGE, Allegheny, PA

Built 1952 Load: 32.7 t ADT: 8,923

RAMP B2 (SR 8017)

Good

Over: RAMP A2

RAMP B2 OVER RAMP A2, Allegheny, PA

Built 1976 Load: 32.7 t ADT: 2,115

RAMP C

Good

Over: RAMP F

Fort Pitt Bridge, Allegheny, PA

Built 1967 Load: 32.7 t ADT: 2,846

RAMP E

Good

Over: RAMP F

Fort Pitt Bridge, Allegheny, PA

Built 1967 Load: 32.7 t ADT: 1,248

OLD DARLINGTON RD

Good

Over: SMALL RUN

@INTER.W/TWP.RD.603, Beaver, PA

Built 1983 Load: 32.7 t ADT: 1,970

US 30 (EBL)

Good

Over: TR.RAYSTWN.BR.JUNIATA R.

1.5 MILE WEST OF I-70, Bedford, PA

Built 1964 Load: 32.7 t ADT: 4,792

SR 2082 (LR 328)

Good

Over: COLD RUN

1.5 MI.S.OF SCARLETS MILL, Berks, PA

Built 1995 Load: 32.7 t ADT: 1,245

SR 422(LR 1041)

Good

Over: TRIB.TO SCHUYLKILL RIVER

MONTGOMERY COUNTY LINE, Berks, PA

Built 1967 Load: 32.7 t ADT: 32,834

Showing 13,001-13,050 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.