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

PA 985

Good

Over: BEAVER DAM CREEK

0.5 MI. N. OF JENNERSTOWN, Somerset, PA

Built 2009 Load: 43.5 t ADT: 1,710

SR 3002

Good

Over: MAHANTANGO CREEK

1.5 MI. SOUTH MEISERVILLE, Snyder, PA

Built 2009 Load: 43.5 t ADT: 492

SR 1001

Good

Over: MARSH CREEK

ROMOLA, Centre, PA

Built 2009 Load: 43.5 t ADT: 586

FOREST GROVE RD

Good

Over: SR 0079 NB-SB

M0008 MOON RUN NO. 8, Allegheny, PA

Built 2009 Load: 43.5 t ADT: 5,297

SR 3009

Good

Over: MIDDLE CREEK

1 MI N OF PAXTONVILLE, Snyder, PA

Built 2010 Load: 43.5 t ADT: 643

T-464 SULGAR RD

Good

Over: LITTLE MILL CREEK

1.2 MILE NE OF US RTE 322, Jefferson, PA

Built 2010 Load: 43.5 t ADT: 53

FRANCIS ROAD

Good

Over: FRANCIS BRANCH

CORNER AT POTTER/LYCOMING, Tioga, PA

Built 2008 Load: 43.5 t ADT: 25

Fruitville (772)

Good

Over: Chiques Ck

Manheim Twp, Lancaster, PA

Built 2010 Load: 43.5 t ADT: 4,998

OTT STREET

Good

Over: CEDAR CREEK

U/S FROM MUHLENBERG LAKE, Lehigh, PA

Built 2010 Load: 43.5 t ADT: 3,000

US 30

Good

Over: STONYCREEK RIVER

KANTNER, Somerset, PA

Built 2010 Load: 43.5 t ADT: 5,236

US 30

Good

Over: TRIB STONYCREEK RIVER

0.07 MILE W. FROM PA 403, Somerset, PA

Built 2010 Load: 43.5 t ADT: 5,236

SR 2009

Good

Over: MIDDLE CREEK

1.5 MILES SW SELINSGROVE, Snyder, PA

Built 2010 Load: 43.5 t ADT: 100

SR 0028

Good

Over: PINE CREEK

0.2 mi S of SR 536 Inter., Clarion, PA

Built 2010 Load: 43.5 t ADT: 4,570

SR3001 Chestnut Rd

Good

Over: Swabia Creek

South side of Alburtis, Lehigh, PA

Built 2010 Load: 43.5 t ADT: 1,390

SR0268

Good

Over: BUFF & PITT RR

1 mi S of COWANSVILLE, Armstrong, PA

Built 2010 Load: 43.5 t ADT: 2,654

SR 4007

Good

Over: MIDDLE CREEK

1 MI N OF BEAVERTOWN BORO, Snyder, PA

Built 2010 Load: 43.5 t ADT: 422

SR 0864

Good

Over: MILL CREEK

1.75 MI EAST OF FARRAGUT, Lycoming, PA

Built 2010 Load: 43.5 t ADT: 929

BRIGHTON RD

Good

Over: SR 0376 EB WB

BRIGHTON TWP OVER 376, Beaver, PA

Built 2010 Load: 43.5 t ADT: 2,902

SR 0819

Good

Over: Jacobs Creek

5.6 mi N of SR 0201, Fayette, PA

Built 2010 Load: 43.5 t ADT: 1,967

T-405

Good

Over: PA TPK (I-76)

west pennsboro twp., Cumberland, PA

Built 2010 Load: 43.5 t ADT: 839

EAST TRYON STREET

Good

Over: CARLEY BROOK

S. Tryon St. Honesdale, Wayne, PA

Built 2010 Load: 43.5 t ADT: 107

T-429

Good

Over: PA TPK (I-76)

Upper Frankford Twp, Cumberland, PA

Built 2009 Load: 43.5 t ADT: 1,783

PA TPK (I-76)

Good

Over: SR 4008 LR21036

Lower Mifflin Twp, Cumberland, PA

Built 2009 Load: 43.5 t ADT: 21,473

SR 1019 Church St.

Good

Over: COULTER RUN

VENANGO TOWNSHIP, Crawford, PA

Built 2011 Load: 43.5 t ADT: 1,508

SR 522

Good

Over: KERN RUN

BOROUGH OF BEAVERTOWN, Snyder, PA

Built 2012 Load: 43.5 t ADT: 6,025

NORTH BAILEY ROAD

Good

Over: TRIBUTARY OF BEAVER RUN

.5 MI. N. US-30 3470H08, Chester, PA

Built 2007 Load: 43.5 t ADT: 3,000

SR 0119 SB

Good

Over: Jacobs Creek SW PA R/R

3.9 mi N from SR 0982, Westmoreland, PA

Built 2013 Load: 43.5 t ADT: 8,114

Bittners Corner Rd

Good

Over: Jordan Creek

Bittners Corner, Lehigh, PA

Built 2019 Load: 43.5 t ADT: 100

SR 1002

Good

Over: MARSH CREEK

1 MI NE ROMOLA, Centre, PA

Built 2023 Load: 43.5 t ADT: 459

T-411 Old Post Rd

Good

Over: Fork of Bane Creek

400 WEST OF TR 560, Washington, PA

Built 1939 Load: 43.7 t ADT: 100

PA-997;Anthony Hwy

Good

Over: Nunnery Run

1 Mi. S. of Quincy, Franklin, PA

Built 2010 Load: 43.7 t ADT: 6,110

Township Road 818

Good

Over: SR 0070

Approx. 2mi W of SR 917, Washington, PA

Built 2011 Load: 43.7 t ADT: 1,601

T-318 CURRIE RD

Good

Over: MUDDY CREEK

0.4 MI FROM INT W/SR0422, Butler, PA

Built 2012 Load: 43.7 t ADT: 100

T-348 (Belmont Rd)

Good

Over: CSX Transportation

3 mi NW of Gettysburg, Adams, PA

Built 2012 Load: 43.7 t ADT: 600

RAMP T

Good

Over: ELDER ST TURTLE CRK RR

TriBoro Expressway, Allegheny, PA

Built 2013 Load: 43.7 t ADT: 3,181

ARMAND HAMMER BLVD

Good

Over: POTTSTOWN BY-PASS

LOWER POTTSGROVE 3139B03, Montgomery, PA

Built 2014 Load: 43.7 t ADT: 9,458

ON TSR 323

Good

Over: BIG FISHING CREEK

LAMAR, Clinton, PA

Built 2015 Load: 43.7 t ADT: 728

SR 414

Good

Over: TRIB TO TOWANDA CREEK

2 MI WEST OF W. LEROY, Bradford, PA

Built 2015 Load: 43.7 t ADT: 2,314

Thorn Hill Dr.

Good

Over: Brush Creek

BH03 Brush Creek No. 3, Allegheny, PA

Built 2015 Load: 43.7 t ADT: 2,764

Great Cove Rd

Good

Over: BIG COVE CREEK

0.5 MILE NORTH OF TR 928, Fulton, PA

Built 2017 Load: 43.7 t ADT: 3,645

Paradise Valley Rd

Good

Over: Paradise Creek

2 MI.E. OF MT. POCONO, Monroe, PA

Built 2016 Load: 43.7 t ADT: 5,960

Ledgedale Rd

Good

Over: ARIEL CREEK

SALEM TWP .6 M N SR 3008, Wayne, PA

Built 2016 Load: 43.7 t ADT: 641

Broadway Road

Good

Over: Limestone Run

4.5 M W OF LIMESTONEVILLE, Montour, PA

Built 2016 Load: 43.7 t ADT: 2,716

Kralltown Road

Good

Over: DOE RUN

0.5 MI E OF KRALLTOWN, York, PA

Built 2016 Load: 43.7 t ADT: 900

Juniata Parkway

Good

Over: Wildcat Run

2 MI.S. OF MILLERSTOWN, Perry, PA

Built 2016 Load: 43.7 t ADT: 3,022

LETORT RD; SR 3032

Good

Over: LITTLE CONESTOGA CREEK

0.8 MI W OF MILLERSVILLE, Lancaster, PA

Built 2017 Load: 43.7 t ADT: 2,336

Plumsock Rd

Good

Over: Tenmile Creek

MORRIS TOWNSHIP, Washington, PA

Built 2017 Load: 43.7 t ADT: 1,535

MARKET ST EXT

Good

Over: MILL CREEK

LIGONIER TOWNSHIP, Westmoreland, PA

Built 2018 Load: 43.7 t ADT: 9,711

Seven Valleys Rd

Good

Over: S Br Codorus Creek

0.5 MI NW OF GLEN ROCK, York, PA

Built 2017 Load: 43.7 t ADT: 1,607

SR 0219

Good

Over: WOLF RUN

2.3 Mi N SR 80 Inter., Jefferson, PA

Built 2017 Load: 43.7 t ADT: 7,645

Showing 17,551-17,600 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.