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 1003 (LR 661)

Good

Over: Schuylkill River

Leesport Bridge - Wall St, Berks, PA

Built 2018 Load: 37.3 t ADT: 5,582

COUNTY LINE EXPWAY

Good

Over: SCHUYLKILL RIVER & NSRC

BETZWOOD BRIDGE 3366C03, Montgomery, PA

Built 2018 Load: 37.3 t ADT: 138,484

SR 4012 ZIMMERLY R

Good

Over: OVER WALNUT CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 2018 Load: 37.3 t ADT: 12,470

PA TPK (I-476)

Good

Over: S. Valley Forge Rd

1.23 mi South of SR 22, Montgomery, PA

Built 2018 Load: 37.3 t ADT: 65,329

T-419 L. GEORGE VA

Good

Over: MUDDY CREEK

3170 FT FROM T 464, Centre, PA

Built 2019 Load: 37.3 t ADT: 202

SR 2005

Good

Over: MIDDLE RUN

MILLERSTOWN, Blair, PA

Built 2019 Load: 37.3 t ADT: 152

T-707 Buch Avenue

Good

Over: Little Conestoga Creek

1800 FT WEST OF SR 4011, Lancaster, PA

Built 2019 Load: 37.3 t ADT: 1,900

INTERSTATE 95 (SB)

Good

Over: CAMBRIA STREET

N.OF LEHIGH AVE. 3591C04, Philadelphia, PA

Built 2023 Load: 37.3 t ADT: 66,507

S.R. 1010

Good

Over: LITTLE ELK RUN

6 MI W OF ROARING BRANCH, Lycoming, PA

Built 2023 Load: 37.3 t ADT: 154

PA-124;Mt Rose Ave

Good

Over: I-83 NB/SB

At I-83 Exit 18, York, PA

Built 2020 Load: 37.3 t ADT: 21,761

RIGHT BR. HYNER RD

Good

Over: SPRING RUN

CHAPMAN TWP, Clinton, PA

Built 2019 Load: 37.3 t ADT: 10

TWP RD 644

Good

Over: NORTH BRANCH CHERRY RUN

1 MI SOUTH OF PYRRA, Armstrong, PA

Built 2020 Load: 37.3 t ADT: 50

SR 1042

Good

Over: HALTER CREEK

1.7 MILES NORTH OF BAKERS, Bedford, PA

Built 2020 Load: 37.3 t ADT: 1,930

SR3011;Mountain Rd

Good

Over: Buck Run

Cove Gap, Franklin, PA

Built 2020 Load: 37.3 t ADT: 636

Iron Bridge Road

Good

Over: Swatara Creek

Swatara/Union over Swatty, Lebanon, PA

Built 2020 Load: 37.3 t ADT: 100

Unity Center Road

Good

Over: PA TPK (I-76)

NEAR PENN HILLS, Allegheny, PA

Built 2019 Load: 37.3 t ADT: 4,396

US 222 (LR 157)

Good

Over: Willow Creek

1 MI S OF PA 73, Berks, PA

Built 2020 Load: 37.3 t ADT: 15,048

DELPS ROAD

Good

Over: HOKENDAUQUA CREEK

NORTH OF KLECKNERSVILLE, Northampton, PA

Built 2021 Load: 37.3 t ADT: 90

SR 1011 (FUTURE)

Good

Over: GENESEE RIVER

ULYSSES, Potter, PA

Built 2023 Load: 37.3 t ADT: 632

SOUTH MOORE AVENUE

Good

Over: Hill Valley Creek

BOROUGH OF MOUNT UNION, Huntingdon, PA

Built 2021 Load: 37.3 t ADT: 50

McDowell Lane

Good

Over: CANONSBURG LAKE

300 WEST OF SR 19, Washington, PA

Built 2021 Load: 37.3 t ADT: 2,709

US 11 SB; N.Main S

Good

Over: Falling Spring Branch

CHAMBERSBURG, Franklin, PA

Built 2021 Load: 37.3 t ADT: 7,128

ROSTKOWSKI ROAD

Good

Over: RIDGE VALLEY CREEK

.25 MiE PA-63 ADC 2917-J8, Montgomery, PA

Built 2022 Load: 37.3 t ADT: 99

US 22; SR 0022

Good

Over: BEACH RUN

0.5 MILE SOUTH FREDRICKSB, Lebanon, PA

Built 2022 Load: 37.3 t ADT: 9,429

SCHUYLKILL ROAD

Good

Over: ECKERS CREEK

NEAR LR 779 02A12, Chester, PA

Built 2022 Load: 37.3 t ADT: 5,108

Powells Valley Rd

Good

Over: Rattling Creek

.5 MI. S. OF LYKENS, Dauphin, PA

Built 1974 Load: 37.6 t ADT: 341

PORTERSVILLE ROAD

Good

Over: SLIPPERY ROCK CREEK

300 FT SW OF SR 2003, Lawrence, PA

Built 1932 Load: 37.6 t ADT: 4,641

PA 934; SR 0934

Good

Over: Norfolk Southern RR

N.SIDE OF ANNVILLE, Lebanon, PA

Built 1936 Load: 37.6 t ADT: 7,968

SR 4008 STAGE ROAD

Good

Over: MIDDLE CREEK

2.5MI WEST BEAVER SPRINGS, Snyder, PA

Built 1948 Load: 37.6 t ADT: 316

SR 0011 TR 11

Good

Over: BRANCH SALT LICK CREEK

NEW MILFORD BO .6MN TR492, Susquehanna, PA

Built 1948 Load: 37.6 t ADT: 4,977

SR 3025 DEEP HOLLW

Good

Over: LOWER TWO MILE RUN

CRANBERRY TOWNSHIP, Venango, PA

Built 1957 Load: 37.6 t ADT: 477

T-631 Ross Road

Good

Over: Tenmile Creek Tributary

200 EAST OF SR 2007, Washington, PA

Built 1936 Load: 37.6 t ADT: 50

T412 Crestmont Rd

Good

Over: Tenmile Creek

550 WEST OF SR 221, Washington, PA

Built 1939 Load: 37.6 t ADT: 50

SR 0019

Good

Over: BR OF DYERS FORK

WHITELEY TWP, Greene, PA

Built 2005 Load: 37.6 t ADT: 468

US 0222

Good

Over: OVER SR 8032/7476/2015

LOWER MACUNGIE, Lehigh, PA

Built 2007 Load: 37.6 t ADT: 20,363

S.R 3006

Good

Over: WHITE CREEK

1.5 WEST OF SR 3004, Susquehanna, PA

Built 2007 Load: 37.6 t ADT: 199

US 15

Good

Over: SR 2014 Simpson Ferry

Outside Camp Hill, Cumberland, PA

Built 2010 Load: 37.6 t ADT: 89,416

SR 3073

Good

Over: S. BR CONEWAGO CREK

2.5 MI S. PENNVILLE, York, PA

Built 2011 Load: 37.6 t ADT: 4,047

1st Street

Good

Over: NS Railroad

1.7 mi N of Apollo, Westmoreland, PA

Built 2011 Load: 37.6 t ADT: 150

SR 2007

Good

Over: S FORK L CONEMAUGH RIV

0.04 MILE NORTH FROM PA 8, Cambria, PA

Built 2011 Load: 37.6 t ADT: 840

SR 1006

Good

Over: WILSON RUN

WILCOX, Elk, PA

Built 2011 Load: 37.6 t ADT: 352

SR 2025

Good

Over: CROOKED CREEK

3.2mi NW SR2027 Intersec., Armstrong, PA

Built 2011 Load: 37.6 t ADT: 291

T-690 RACETRACK

Good

Over: PLUM CREEK

0.2mi E of SR 210 INT, Armstrong, PA

Built 2011 Load: 37.6 t ADT: 20

SR 2078;WINDY HILL

Good

Over: I-83; SR 0083

OVER I-83, York, PA

Built 2011 Load: 37.6 t ADT: 1,676

WEST GAY ST.

Good

Over: FISHING CREEK

GAY ST; FISHING CRK; WIND, York, PA

Built 2012 Load: 37.6 t ADT: 112

DRY TAVERN RD./897

Good

Over: MUDDY CREEK

0.5 MI. N. OF TERRE HILL, Lancaster, PA

Built 2012 Load: 37.6 t ADT: 4,034

OLD PULASKI

Good

Over: CAMP RUN

1/4 MI.SOUTH TWP.551, Lawrence, PA

Built 2011 Load: 37.6 t ADT: 588

SR 2037/CHURCH ST

Good

Over: CSX RAILROAD

GARRETT BORO (CHURCH ST), Somerset, PA

Built 2012 Load: 37.6 t ADT: 557

SR 3011 MCGUIRE ST

Good

Over: OVER MCGUIRE RUN

TIDIOUTE BOROUGH, Warren, PA

Built 2012 Load: 37.6 t ADT: 143

BROAD RUN ROAD

Good

Over: E. BR. WHITE CLAY CREEK

.1 MI. S. I-95 3910H7, Chester, PA

Built 2013 Load: 37.6 t ADT: 1,906

Showing 15,101-15,150 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.