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 1009

Good

Over: OVER MUD CREEK

4MI W OF STRAWBERRY RIDGE, Montour, PA

Built 1962 Load: 32.7 t ADT: 164

SR 2003

Good

Over: OVER SECHLER RUN

1MI E OF DANVILLE, Montour, PA

Built 1960 Load: 32.7 t ADT: 805

OLD 3011 NEW 54

Good

Over: SECHLER RUN

BOROUGH OF DANVILLE, Montour, PA

Built 1970 Load: 32.7 t ADT: 10,761

SR 4003

Good

Over: OVER LIMESTONE RUN

2 MI N LIMESTONEVILLE, Montour, PA

Built 1967 Load: 32.7 t ADT: 282

FERRY STREET

Good

Over: SECHLERS RUN

BORO OF DANVILLE, Montour, PA

Built 1975 Load: 32.7 t ADT: 4,000

PINE ST. DANVILLE

Good

Over: SECHLER RUN

BORO OF DANVILLE, Montour, PA

Built 1980 Load: 32.7 t ADT: 200

HILLSIDE ROAD

Good

Over: CATASAUQUA CREEK

EAST OF SR 3021, Northampton, PA

Built 1991 Load: 32.7 t ADT: 300

BANGOR VEIN ROAD

Good

Over: MARTINS CREEK

EAST OF NORTH BANGOR, Northampton, PA

Built 1992 Load: 32.7 t ADT: 150

SR 0045

Good

Over: W.B. SUSQUEHANNA RIVER

LEWISBURG RIVER BRIDGE, Northumberland, PA

Built 1988 Load: 32.7 t ADT: 14,358

SR 0054

Good

Over: OVER WARRIOR RUN CREEK

1 MI W OF TURBOTVILLE, Northumberland, PA

Built 1974 Load: 32.7 t ADT: 5,352

SR 147 SOUTHBOUND

Good

Over: OVER LIMESTONE RUN

1 MILE EAST OF MILTON, Northumberland, PA

Built 1971 Load: 32.7 t ADT: 8,462

SR 225

Good

Over: MOUSE RUN

2 MI N OF MANDATA, Northumberland, PA

Built 1991 Load: 32.7 t ADT: 2,659

SR. 225

Good

Over: OVER MOUSE RUN

VILLAGE OF RED CROSS, Northumberland, PA

Built 1986 Load: 32.7 t ADT: 2,659

SR 405

Good

Over: OVER HOUSEL RUN

1 MILE SOUTH OF MILTON, Northumberland, PA

Built 1964 Load: 32.7 t ADT: 6,128

SR 405

Good

Over: LIMESTONE RUN

BORO OF MILTON, Northumberland, PA

Built 1978 Load: 32.7 t ADT: 9,902

SR 487

Good

Over: TRIB TO SHAMOKIN CREEK

BORO OF ELYSBURG, Northumberland, PA

Built 1951 Load: 32.7 t ADT: 4,568

SR 642

Good

Over: W.B. SUSQUEHANNA RIVER

W.MILTON/ISLAND RIVER BR., Northumberland, PA

Built 1987 Load: 32.7 t ADT: 11,917

SR 901

Good

Over: OVER QUAKER RUN

0.25 MI SW OF RANSHAW, Northumberland, PA

Built 1970 Load: 32.7 t ADT: 3,876

SR 1010

Good

Over: WARIOR RUN CREEK

3 MI N OF TURBOTVILLE, Northumberland, PA

Built 1957 Load: 32.7 t ADT: 172

S.R. 4002

Good

Over: OVER WILSON RUN

BORO OF RIVERSIDE, Northumberland, PA

Built 1986 Load: 32.7 t ADT: 66

SR 4002

Good

Over: OVER KIPPS RUN

BORO OF RIVERSIDE, Northumberland, PA

Built 1974 Load: 32.7 t ADT: 66

SR 4006

Good

Over: GRAVEL RUN

4.5 MI SW OF RIVERSIDE, Northumberland, PA

Built 1960 Load: 32.7 t ADT: 372

SR 4022

Good

Over: OVER BOILE RUN

2 MI E OF FISHERS FERRY, Northumberland, PA

Built 1961 Load: 32.7 t ADT: 221

DARK HOLLOW ROAD

Good

Over: DARK RUN

4 W DUNCANNON/DARK RUN, Perry, PA

Built 1998 Load: 32.7 t ADT: 50

KANSAS VALLEY ROAD

Good

Over: KANSAS VALLEY RUN

1.7 MI NE OF SR 3002, Perry, PA

Built 1986 Load: 32.7 t ADT: 25

SR 0084 I-84 WB

Good

Over: SR 2017

MILFORD TWP OVER SR 2017, Pike, PA

Built 1969 Load: 32.7 t ADT: 9,629

SR 0507 TR 507

Good

Over: KLEINHANS CREEK

PALMYRA TWP 3.9M N SR4001, Pike, PA

Built 1957 Load: 32.7 t ADT: 3,188

PA 61 (LR 141)

Good

Over: MAHANNON CREEK

AT S.LIBERTY STREET, Schuylkill, PA

Built 1936 Load: 32.7 t ADT: 17,751

MAHANTONGO ST

Good

Over: DEEP CREEK

N.OF SR 25 NR.SACRAMENTO, Schuylkill, PA

Built 1920 Load: 32.7 t ADT: 100

SR 204

Good

Over: TRIB TO PENNS CREEK

1 MI N OF SELINSGROVE, Snyder, PA

Built 1964 Load: 32.7 t ADT: 3,914

SR 1005

Good

Over: OVER HUMMELS RUN

1.5 MI. NE OF MIDDLEBURG, Snyder, PA

Built 1968 Load: 32.7 t ADT: 2,018

SR 1005

Good

Over: OVER BR OF MIDDLE CREEK

2 MI NE OF MIDDLEBURG, Snyder, PA

Built 1968 Load: 32.7 t ADT: 2,018

SR 1005

Good

Over: OVER TUSCARORA CREEK

1.5 MI NE OF ERDLEYS, Snyder, PA

Built 1968 Load: 32.7 t ADT: 2,177

SR 1006

Good

Over: OVER TUSCORORA CREEK

1.5 MI W OF ERDLEYS, Snyder, PA

Built 1968 Load: 32.7 t ADT: 514

SR 1007

Good

Over: OVER MILL RACE

4 MI NW OF FREEBURG, Snyder, PA

Built 1941 Load: 32.7 t ADT: 316

SILVER CRK HLW RD

Good

Over: SILVER CREEK

2 MI N OF PORT TREVORTON, Snyder, PA

Built 1965 Load: 32.7 t ADT: 168

SR 3004

Good

Over: TRIB NO BR MAHANTANGO CR

1 MI E OF SHADLE, Snyder, PA

Built 1978 Load: 32.7 t ADT: 473

TROXELVILLE RD

Good

Over: OVER MOYERS MILL RUN

2.5 MI E OF TROXELVILLE, Snyder, PA

Built 1974 Load: 32.7 t ADT: 1,055

CHERRY TWP T-405

Good

Over: BLACK CREEK

1.9 MI NW OF CHERRY MILLS, Sullivan, PA

Built 1990 Load: 32.7 t ADT: 50

SR 2005

Good

Over: OVER COREY CREEK

BORO OF MANSFIELD, Tioga, PA

Built 1978 Load: 32.7 t ADT: 2,868

SR 0328

Good

Over: HAMMOND CREEK

1 MI E OF JACKSON SUMMIT, Tioga, PA

Built 1984 Load: 32.7 t ADT: 1,330

SR 349

Good

Over: OVER LONG RUN

7 MI N OF GAINES, Tioga, PA

Built 1973 Load: 32.7 t ADT: 966

SR 549

Good

Over: BEAR CREEK

3 MI. N.E. OF ROSEVILLE, Tioga, PA

Built 1994 Load: 32.7 t ADT: 538

SR 549

Good

Over: TRIB. TO SEELEY CREEK

VILLAGE OF JOBS CORNERS, Tioga, PA

Built 1957 Load: 32.7 t ADT: 1,345

SR 0549

Good

Over: TRIB. TO SEELEY CREEK

VILLAGE OF DAGGETT, Tioga, PA

Built 1957 Load: 32.7 t ADT: 1,345

SR 660

Good

Over: NORTH ELK RUN

5.5 MI SW OF MANSFIELD, Tioga, PA

Built 1971 Load: 32.7 t ADT: 2,161

SR 1012

Good

Over: BRANCH OF MILL CREEK

2 MI NE OF ROSEVILLE, Tioga, PA

Built 1962 Load: 32.7 t ADT: 192

SR 1020

Good

Over: OVER ALDER RUN

3.5 MI W OF MILLERTON, Tioga, PA

Built 1969 Load: 32.7 t ADT: 128

SR 1022

Good

Over: OVER ALLEN CREEK

3 MI NW OF MILLERTON, Tioga, PA

Built 1973 Load: 32.7 t ADT: 131

SR 2016

Good

Over: BABBS CREEK

7 MI W. OF BLOSSBURG, Tioga, PA

Built 1961 Load: 32.7 t ADT: 278

Showing 13,151-13,200 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.