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

GIBSONIA RD

Good

Over: W. BRANCH OF DEER CREEK

1 MILE EAST OF RT 8 INT, Allegheny, PA

Built 2018 Load: 34.3 t ADT: 9,313

Dunbar Ohiopyle Rd

Good

Over: Tucker Run

DUNBAR TOWNSHIP, Fayette, PA

Built 2017 Load: 34.3 t ADT: 468

BRINKERTON RD

Good

Over: BRINKER RUN

MOUNT PLEASANT TOWNSHIP, Westmoreland, PA

Built 2017 Load: 34.3 t ADT: 837

SR 414

Good

Over: UNT to Towanda Creek

VILLAGE OF FRANKLINDALE, Bradford, PA

Built 2017 Load: 34.3 t ADT: 2,823

WEST SUNBURY RD

Good

Over: TRIB to STONY RUN

N of Rider Church Rd, Butler, PA

Built 2017 Load: 34.3 t ADT: 3,384

US 30; SR 0030

Good

Over: LITTLE CONEWAGO CREEK

THOMASVILLE, York, PA

Built 2017 Load: 34.3 t ADT: 14,224

Freeport Road

Good

Over: Squaw Run

1/2 mi. S of SR 1002, Allegheny, PA

Built 2018 Load: 34.3 t ADT: 10,555

SR 2010

Good

Over: LITTLE BUFFALO CREEK

1 Mi E SR 356 Inter., Butler, PA

Built 2017 Load: 34.3 t ADT: 2,450

SR 1017 COLLEGE AV

Good

Over: TRIB S B TUNKHANNOCK CRK

FACTORYVL BO .1M S TR 6, Wyoming, PA

Built 2017 Load: 34.3 t ADT: 1,723

SR 549

Good

Over: BECKWITH CREEK

VILLAGE OF MOSHERVILLE, Bradford, PA

Built 2017 Load: 34.3 t ADT: 1,345

T-501 Ringer Road

Good

Over: Mountain Creek

2.1 Mile East of 119, Fayette, PA

Built 2017 Load: 34.3 t ADT: 130

RAMP B

Good

Over: U.S. 422

SR422/SR23 INTC. 3366C04, Montgomery, PA

Built 2018 Load: 34.3 t ADT: 5,480

SR 4011 GRANGE RD.

Good

Over: OVER CUSSEWAGO CREEK

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 2018 Load: 34.3 t ADT: 548

Wetzel Road

Good

Over: Little Pine Creek

250W.OF SR 4006, Allegheny, PA

Built 2020 Load: 34.3 t ADT: 4,805

US 422; Cumb. st.

Good

Over: QUITTAPAHILLA CREEK

W.OF 8TH.AVE.& CUMB. ST., Lebanon, PA

Built 2019 Load: 34.3 t ADT: 10,358

SR 3002

Good

Over: HORNING RUN

1 MI N CUBA MILLS, Juniata, PA

Built 2019 Load: 34.3 t ADT: 3,714

PA 26

Good

Over: TR YELLOW CREEK

0.1 MILE SOUTH OF TR 36, Bedford, PA

Built 2019 Load: 34.3 t ADT: 3,571

STILLS MEADOW

Good

Over: S. BRANCH TUNK CR

825 NW 107 INTERCHANGE, Lackawanna, PA

Built 2020 Load: 34.3 t ADT: 25

T409 TUSCAR CRK RD

Good

Over: TUSCARORA CREEK

1.8 MILE S. OF SR 2015, Huntingdon, PA

Built 2021 Load: 34.3 t ADT: 66

Rasley Hill Road

Good

Over: Little Martins Creek

0.2 MI North of PA 611, Northampton, PA

Built 2020 Load: 34.3 t ADT: 100

PA 96

Good

Over: SULPHUR SPRINGS CREEK

2.2 MI.S.OF MANNS CHOICE, Bedford, PA

Built 2023 Load: 34.3 t ADT: 1,847

T-615 (Ridge Road)

Good

Over: Trout Run

100 N of SR 443, Lebanon, PA

Built 2020 Load: 34.3 t ADT: 100

Bridge Road

Good

Over: Wapwallopen Creek

3000 FT SE OF SR 3012, Luzerne, PA

Built 2020 Load: 34.3 t ADT: 55

CONCORD ROAD

Good

Over: GREEN CREEK

NORTHWEST CHELSEA 41K02, Delaware, PA

Built 2020 Load: 34.3 t ADT: 5,280

SR 0405

Good

Over: GLADE RUN

MUNCY BOROUGH, Lycoming, PA

Built 2021 Load: 34.3 t ADT: 5,757

PA 447(LR 324)

Good

Over: GOOSE POND RUN

CANADENSIS, Monroe, PA

Built 2021 Load: 34.3 t ADT: 1,737

PA 233; SR 0233

Good

Over: Bettem Hollow Run

0.1 MI.S. OF L.R. 21008, Cumberland, PA

Built 2021 Load: 34.3 t ADT: 1,088

SR 253

Good

Over: MUDDY RUN

1.5 MILE NORTH OF SR 865, Cambria, PA

Built 2023 Load: 34.3 t ADT: 1,313

COULTERVILLE RD

Good

Over: Long Run

LG03 LONG RUN NO. 3, Allegheny, PA

Built 2022 Load: 34.3 t ADT: 9,886

PULASKI DRIVE

Good

Over: TRIBUTARY TO STONY CREEK

0.7MI NW OF US202 3255-K5, Montgomery, PA

Built 2023 Load: 34.3 t ADT: 1,000

SANTIAGO RD

Good

Over: SOUTH FORK MONTOUR RUN

@ INTER. WITH SR 3070, Allegheny, PA

Built 1991 Load: 34.5 t ADT: 1,052

PANGBURN HOLLOW RD

Good

Over: PERRY MILL RUN TRIB

PG14 PANGBURN HOLLOW #14, Allegheny, PA

Built 1992 Load: 34.5 t ADT: 700

BETHEL CHURCH RD

Good

Over: GRAESERS RUN N. BRANCH

GS02 GRAESERS RUN # 2, Allegheny, PA

Built 1992 Load: 34.5 t ADT: 2,221

PA 26

Good

Over: BLOODY RUN

EVERETT BOROUGH, Bedford, PA

Built 1989 Load: 34.5 t ADT: 3,138

CHEESE LANE

Good

Over: HASSLER RUN

NW OF BERNE, Berks, PA

Built 1981 Load: 34.5 t ADT: 200

I-99 / US 220 SBL

Good

Over: SR 1002

1 MI.W.OF HOLLIDAYSBURG, Blair, PA

Built 1983 Load: 34.5 t ADT: 14,256

SR 4018

Good

Over: LITTLE JUNIATA RIVER

.25 MI.W.OF PINECROFT, Blair, PA

Built 1956 Load: 34.5 t ADT: 1,583

SR 154

Good

Over: TOWANDA CREEK

CANTON BORO S.MINNEQUA AV, Bradford, PA

Built 1986 Load: 34.5 t ADT: 1,380

SR 4024

Good

Over: OVER BENTLEY CREEK

VILLAGE OF CENTERVILLE, Bradford, PA

Built 1979 Load: 34.5 t ADT: 575

SR 26-PA 26

Good

Over: SLAB CABIN RUN

PINE GROVE MILLS, Centre, PA

Built 1989 Load: 34.5 t ADT: 6,595

SR 3042

Good

Over: SR 3040

MARTHA FURNACE, Centre, PA

Built 1987 Load: 34.5 t ADT: 2,732

POTTSTOWN PIKE

Good

Over: NEIMAN ROAD

1.0 MI TO LR 147 6D03, Chester, PA

Built 1954 Load: 34.5 t ADT: 16,533

JACK DENT RD

Good

Over: JACK DENT BRANCH

600 FT NE OF MEDIX GRADE, Clearfield, PA

Built 2000 Load: 34.5 t ADT: 25

SR 120-PA 120

Good

Over: KETTLE CREEK

WESTPORT, Clinton, PA

Built 1982 Load: 34.5 t ADT: 660

SR 120-PA 120

Good

Over: DRURY RUN

RENOVO BORO, Clinton, PA

Built 1970 Load: 34.5 t ADT: 660

2002; E. North St

Good

Over: LETORT SPRING RUN

BORO OF CARLISLE, Cumberland, PA

Built 1964 Load: 34.5 t ADT: 3,874

STUARTS ROAD T-464

Good

Over: YELLOW BREECHES CREEK

1.7SE MOOREDALE/YEL.BRCH., Cumberland, PA

Built 1992 Load: 34.5 t ADT: 100

8033; RAMP A

Good

Over: PA 581WB TO I-81SB; I-81

.2 MI.E. OF SR 1011, Cumberland, PA

Built 1973 Load: 34.5 t ADT: 9,412

PA 39; SR 0039

Good

Over: BRANCH OF PAXTON CREEK

3MI W OF LINGLESTOWN, Dauphin, PA

Built 1964 Load: 34.5 t ADT: 19,247

SR 2003

Good

Over: KELLOCK RUN

1 MI. N HUMMELSTOWN, Dauphin, PA

Built 1993 Load: 34.5 t ADT: 3,839

Showing 13,751-13,800 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.