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 3006

Fair

Over: HOUSTON RUN

1 MI SOUTH OF BLAIN, Perry, PA

Built 1940 Load: 30.8 t ADT: 365

UNION HOLLOW RD

Fair

Over: SHULTZ CREEK

2.5 S.N.GRMNTWN. SHULTZ, Perry, PA

Built 1989 Load: 30.8 t ADT: 100

LAUREL RUN ROAD

Fair

Over: SHAEFFER RUN

2000 S OF BACK HOLLOW RD, Perry, PA

Built 1939 Load: 30.8 t ADT: 50

SR 1003

Fair

Over: CUSHING RUN

2 MI S LOUCKS MILLS, Potter, PA

Built 1967 Load: 30.8 t ADT: 179

I-81 SB (LR 1005)

Fair

Over: SR 4009 (LR 53030)

2 MI.S.OF EXIT 112(34), Schuylkill, PA

Built 1969 Load: 30.8 t ADT: 10,106

PA 183 (LR 417)

Fair

Over: PANTHER CREEK

CRESSONA BORO, Schuylkill, PA

Built 1926 Load: 30.8 t ADT: 11,304

PA 443

Fair

Over: SWATARA CREEK

EAST SIDE OF PINE GROVE, Schuylkill, PA

Built 1968 Load: 30.8 t ADT: 6,297

SR 2011(53074)

Fair

Over: MAHONNEY CREEK

N.GREENVIEW RD., Schuylkill, PA

Built 1940 Load: 30.8 t ADT: 906

TAYLORSVILLE RD

Fair

Over: MAHANTANGO CREEK

EAST OF HAAS, Schuylkill, PA

Built 1940 Load: 30.8 t ADT: 200

ATLAS RD

Fair

Over: LITTLE SCHUYLKILL RIVER

REYNOLDS/CLAMTOWN, Schuylkill, PA

Built 1939 Load: 30.8 t ADT: 1,500

ANDREAS RD

Fair

Over: LIZARD CREEK

800 FT SOUTH OF S.R.895, Schuylkill, PA

Built 1922 Load: 30.8 t ADT: 600

RIDGE RD.

Fair

Over: LIZARD CREEK

175 FT SOUTH OF PA 895, Schuylkill, PA

Built 1971 Load: 30.8 t ADT: 100

US SR 11 & 15 NB

Fair

Over: OVER PENNS CREEK

1.7 MI S OF SELINSGROVE, Snyder, PA

Built 1975 Load: 30.8 t ADT: 8,463

US SR 11 & 15 SB

Fair

Over: OVER PENNS CREEK

1.7 MI S OF SELINSGROVE, Snyder, PA

Built 1975 Load: 30.8 t ADT: 8,228

SR 204

Fair

Over: TRIB TO PENNS CREEK

2.5 MI N OF SELINSGROVE, Snyder, PA

Built 1934 Load: 30.8 t ADT: 3,465

US 219 NBL

Fair

Over: QUEMAHONING CREEK

2 MILE NORTH OF US 30, Somerset, PA

Built 1969 Load: 30.8 t ADT: 6,196

SR 4009

Fair

Over: QUEMAHONING CREEK

1 MI.S.OF EDIE, Somerset, PA

Built 1968 Load: 30.8 t ADT: 459

T-309 BR#1

Fair

Over: MUNCY CREEK

0.1 MI. S OF SONESTOWN, Sullivan, PA

Built 1976 Load: 30.8 t ADT: 100

SR 0011 TR 11

Fair

Over: MEYLERT CREEK

NEW MILF BO .1 M S TR 848, Susquehanna, PA

Built 1948 Load: 30.8 t ADT: 4,880

SR 3001

Fair

Over: LITTLE MESHOPPEN CREEK

AUBURN TP 1.5 M E SR 3005, Susquehanna, PA

Built 1950 Load: 30.8 t ADT: 209

SR 0015

Fair

Over: OVER MUTTON LANE CREEK

1 MI S TIOGA JUNCTION, Tioga, PA

Built 1942 Load: 30.8 t ADT: 3,182

T472 COVINGTON TWP

Fair

Over: ELK RUN

2.2 MI. NW OF COVINGTON, Tioga, PA

Built 1974 Load: 30.8 t ADT: 125

T-663

Fair

Over: ZIMMERMAN CREEK

1.4 MI N.E. OF NAUVOO, Tioga, PA

Built 1916 Load: 30.8 t ADT: 40

T-584

Fair

Over: NORRIS BROOK

0.2 MI. E OF NILES VALLEY, Tioga, PA

Built 1980 Load: 30.8 t ADT: 200

QUEEN STREET

Fair

Over: KELSEY CREEK

BORO OF WELLSBORO, Tioga, PA

Built 1950 Load: 30.8 t ADT: 1,000

SR 45

Fair

Over: OVER TRIB. BUFFALO CR.

1 MI E OF MIFFLINBURG, Union, PA

Built 1938 Load: 30.8 t ADT: 11,735

SR 1002

Fair

Over: OVER LITTLE BUFFALO CRK.

2 MI S OF KELLY CROSSROAD, Union, PA

Built 1949 Load: 30.8 t ADT: 2,233

SR 4011 GRESHAM RD

Fair

Over: OVER PRATHER CREEK

CHERRY TREE TOWNSHIP, Venango, PA

Built 1982 Load: 30.8 t ADT: 54

T-310 OLD BEECH RD

Fair

Over: E. BR. WOLF CREEK

IRWIN TOWNSHIP, Venango, PA

Built 1925 Load: 30.8 t ADT: 50

T-595 CREEK ROAD

Fair

Over: OVER MIDDLE BR.SUGAR CK.

JACKSON TOWNSHIP, Venango, PA

Built 1982 Load: 30.8 t ADT: 150

SR 4007 BEAR LAKE

Fair

Over: OVER COLD SPRING CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1962 Load: 30.8 t ADT: 456

SR 4023 PLANK ROAD

Fair

Over: OVER BROKENSTRAW CREEK

COLUMBUS TOWNSHIP, Warren, PA

Built 1955 Load: 30.8 t ADT: 250

SR 0019

Fair

Over: TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1917 Load: 30.8 t ADT: 688

SR 0837

Fair

Over: MON-VIEW MINE TRACKS

UNION TOWNSHIP, Washington, PA

Built 1945 Load: 30.8 t ADT: 6,691

SR 2015

Fair

Over: BRANCH OF DANIELS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1962 Load: 30.8 t ADT: 190

SR 2023

Fair

Over: PIGEON CREEK

FALLOWFIELD TOWNSHIP, Washington, PA

Built 1984 Load: 30.8 t ADT: 651

SR 3011

Fair

Over: SR 0070

BUFFALO TOWNSHIP, Washington, PA

Built 1961 Load: 30.8 t ADT: 851

SR 4059

Fair

Over: BUFFALO CREEK

BLAINE TOWNSHIP, Washington, PA

Built 1946 Load: 30.8 t ADT: 163

SR 0084 I-84 WB

Fair

Over: BUTTERNUT CREEK

STERLING TWP .7M E TR 191, Wayne, PA

Built 1969 Load: 30.8 t ADT: 7,063

SR 0370 TR 370

Fair

Over: SHEHAWKEN CREEK

PRESTON TWP .4M N SR 4016, Wayne, PA

Built 1948 Load: 30.8 t ADT: 1,179

SR 0371 TR 371

Fair

Over: NORTH BR CALKINS CREEK

DAMASCUS TWP .3M E SR1025, Wayne, PA

Built 1951 Load: 30.8 t ADT: 1,536

SR 1019

Fair

Over: SO. BRANCH CALKINS CREEK

BERLIN TWP .3 M S SR 1007, Wayne, PA

Built 1958 Load: 30.8 t ADT: 403

SR 2011

Fair

Over: BRANCH INDIAN ORCHARD BR

BERLIN TWP .4 M E TR 652, Wayne, PA

Built 1989 Load: 30.8 t ADT: 281

SR 3040 AVOY RD

Fair

Over: ALPHA CREEK

PAUPACK TWP .3 M W TR 590, Wayne, PA

Built 1934 Load: 30.8 t ADT: 385

SR 4012

Fair

Over: STARRUCCA CREEK

STARRUCCA BO .1M W SR4039, Wayne, PA

Built 1982 Load: 30.8 t ADT: 118

SR 0136

Fair

Over: LITTLE SEWICKLEY CREEK

HEMPFIELD TOWNSHIP, Westmoreland, PA

Built 1919 Load: 30.8 t ADT: 2,391

SR 0156

Fair

Over: KISKIMINETAS RIVER

AVONMORE BRIDGE, Westmoreland, PA

Built 1937 Load: 30.8 t ADT: 750

SR 0259

Fair

Over: TROUT RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1950 Load: 30.8 t ADT: 769

SR 0271

Fair

Over: MILL CREEK

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1940 Load: 30.8 t ADT: 2,429

SR 0400

Fair

Over: BEAVER RUN

WASHINGTON & BELL TWPS., Westmoreland, PA

Built 1966 Load: 30.8 t ADT: 3,722

Showing 3,451-3,500 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.