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

N. Washington Road

Good

Over: Pine Run

Washington Township, Westmoreland, PA

Built 2018 Load: 32.7 t ADT: 300

T-617

Good

Over: TROUT RUN

350 N OF SR443, Lebanon, PA

Built 2019 Load: 32.7 t ADT: 100

T-361 Hilltop Rd

Good

Over: Newburg Run

1.1 MI NW Newburg, Cumberland, PA

Built 2019 Load: 32.7 t ADT: 50

Barnhart Drive

Good

Over: Gitts Run

200 yd W Gitts Run Rd, York, PA

Built 2019 Load: 32.7 t ADT: 1,000

CRESCENT LAKE ROAD

Good

Over: DRY SAWMILL RUN

DRY SAWMILL RUN, Monroe, PA

Built 2015 Load: 32.7 t ADT: 100

LAKE RD

Good

Over: POTTER RUN

0.2 east from Carter Rd, Lawrence, PA

Built 2020 Load: 32.7 t ADT: 100

SR 4029

Good

Over: SINK RUN

290 FT SOUTH OF SR 453, Blair, PA

Built 2021 Load: 32.7 t ADT: 4,067

T-338 MCKEE RD

Good

Over: OVER SR 90 EB/WB

SPRINGFIELD TOWNSHIP, Erie, PA

Built 2022 Load: 32.7 t ADT: 57

Keefer Road

Good

Over: Mounts Creek

Bullskin Township, Fayette, PA

Built 2020 Load: 32.7 t ADT: 100

ROCKVILLE RD.

Good

Over: Pierceville Run

3 MILE WEST OF GLEN ROCK, York, PA

Built 2022 Load: 32.7 t ADT: 280

Mine Road

Good

Over: Tohickon Creek

Richland 2695-C5, Bucks, PA

Built 2020 Load: 32.7 t ADT: 400

T-505

Good

Over: UNT Little Swatara Creek

North Lebanon, Lebanon, PA

Built 2007 Load: 32.7 t ADT: 150

T-500

Good

Over: UNT Little Swatara Creek

North Lebanon, Lebanon, PA

Built 2007 Load: 32.7 t ADT: 150

SR 99 EDINBORO RD

Good

Over: OVER SR 90 EB/WB

SUMMIT TOWNSHIP, Erie, PA

Built 2023 Load: 32.7 t ADT: 5,380

PARK ACCESS ROAD

Good

Over: GREAT MEADOWS RUN

.1 MILE FROM U.S. ROUTE 4, Fayette, PA

Built 2008 Load: 32.7 t ADT: 100

VISITOR CENTER ROA

Good

Over: GUINN RUN

0.4 MILES EAST OF TANEYTO, Adams, PA

Built 2008 Load: 32.7 t ADT: 100

BUS PARKING ACCESS

Good

Over: WETLANDS

0.6 MILES EAST OF TANEYTO, Adams, PA

Built 2008 Load: 32.7 t ADT: 100

VISITOR CENTER ROA

Good

Over: WETLANDS

0.7 MILES EAST OF TANEYTO, Adams, PA

Built 2008 Load: 32.7 t ADT: 100

RAMP B

Good

Over: FONTELLA ST.

West End Bridge, Allegheny, PA

Built 1991 Load: 33.0 t ADT: 2,467

SR 61(LR 160)

Good

Over: WILLOW CREEK

2 MI S OF LEESPORT, Berks, PA

Built 1962 Load: 33.0 t ADT: 31,046

BEAR MEADOWS RD

Good

Over: GALBRAITH GAP RUN

1 MI SOUTH OF SR 322, Centre, PA

Built 1932 Load: 33.0 t ADT: 50

SR 3020 WEST ROAD

Good

Over: OVER LAMSON RUN

MCKEAN TOWNSHIP, Erie, PA

Built 1970 Load: 33.0 t ADT: 5,787

KEEBLER ROAD(T300)

Good

Over: ABRAMS CREEK

.35 MI SW Rt 23 3366-J5, Montgomery, PA

Built 1960 Load: 33.0 t ADT: 5,625

SR 0381

Good

Over: INDIAN CREEK

DONEGAL TOWNSHIP, Westmoreland, PA

Built 1962 Load: 33.0 t ADT: 343

I-76 (EB)

Good

Over: MOYAMENSING AVE;RAMP N

MOYAMENSING OVPASS 37D06, Philadelphia, PA

Built 1957 Load: 33.0 t ADT: 25,707

SR 4033

Good

Over: TURTLE CREEK

MUNICIPAL OF MURRYSVILLE, Westmoreland, PA

Built 2005 Load: 33.0 t ADT: 10,531

SR 3012

Good

Over: Sewickley Creek

Yukon, Westmoreland, PA

Built 2006 Load: 33.0 t ADT: 522

CONSHOHOCKEN ROAD

Good

Over: U MERION & PLYMOUTH RR

PLYMOUTH TWP. 3367K06, Montgomery, PA

Built 2011 Load: 33.0 t ADT: 7,779

T-376 Clear Spr Rd

Good

Over: QUITTAPAHILLA CREEK

0.3 mile west of Annville, Lebanon, PA

Built 2009 Load: 33.0 t ADT: 5,142

NEWPORT PIKE

Good

Over: PINE CREEK

NORTH OF ATGLEN 26E8, Chester, PA

Built 2010 Load: 33.0 t ADT: 11,427

BALTIMORE PIKE

Good

Over: CHESTER CREEK

1 MI. W. RTE452 3695G06, Delaware, PA

Built 2011 Load: 33.0 t ADT: 26,976

SR 2006

Good

Over: MACKEY RUN

LINDEN HALL, Centre, PA

Built 2010 Load: 33.0 t ADT: 813

U.S. 202 PARKWAY

Good

Over: BETHLEHEM PIKE (PA-309)

.1 MI. S. U.S.202 3145B03, Montgomery, PA

Built 2012 Load: 33.0 t ADT: 24,839

DEKALB PIKE

Good

Over: PA TPK N.E. EXT. (I-476)

2.5 MI. N. I-276 3256C05, Montgomery, PA

Built 2011 Load: 33.0 t ADT: 20,362

MORRIS ROAD

Good

Over: PA TURNPIKE EXT. (I-476)

.5 MI. E. PA363 3143J07, Montgomery, PA

Built 2011 Load: 33.0 t ADT: 11,373

T-841 Center Road

Good

Over: over Cussewago Creek

2.5 mile S Crossingville, Crawford, PA

Built 2011 Load: 33.0 t ADT: 250

Martin Road

Good

Over: Over Two Mile Run

3.5 miles north of SR 8, Venango, PA

Built 2011 Load: 33.0 t ADT: 100

SR 955 Iroquois Av

Good

Over: SIX MILE CREEK

HARBORCREEK TWP, Erie, PA

Built 2010 Load: 33.0 t ADT: 4,343

PA 94; SR 0094

Good

Over: TRIB S BR CONEWAGO CREEK

W.END HANOVER, York, PA

Built 2011 Load: 33.0 t ADT: 22,501

HEADQUARTERS ROAD

Good

Over: SUNDALE CREEK

3 MI. W. PA 32 2699D03, Bucks, PA

Built 2012 Load: 33.0 t ADT: 322

SR 2007

Good

Over: TR W BR SIDELING HILL CR

1 MILE WEST OF PINE RIDGE, Bedford, PA

Built 2012 Load: 33.0 t ADT: 326

SR 2018

Good

Over: Smith Creek

0.02 mi E from SR 0218, Greene, PA

Built 2012 Load: 33.0 t ADT: 365

9TH STREET

Good

Over: CHESTER CREEK

1/2 MI. S. I-95 3807B04, Delaware, PA

Built 2012 Load: 33.0 t ADT: 10,722

SR 3007

Good

Over: MIDDLE CREEK

2 MI WEST MIDDLEBURG, Snyder, PA

Built 2012 Load: 33.0 t ADT: 81

SALFORDVILLE ROAD

Good

Over: EAST BR. PERKIOMEN CREEK

.75 MI. W. PA113 3030D07, Montgomery, PA

Built 2012 Load: 33.0 t ADT: 3,647

U.S. 202 PARKWAY

Good

Over: ALMSHOUSE ROAD

1 MI S. PA611 28F3/3034D5, Bucks, PA

Built 2012 Load: 33.0 t ADT: 13,409

Ramp AB & Ramp D

Good

Over: SR 1016 & Atwater Drive

SR 29 Interchange, Chester, PA

Built 2012 Load: 33.0 t ADT: 2,000

Ramp AB

Good

Over: PA TPK (I-76)

SR 29 Intercharge, Chester, PA

Built 2012 Load: 33.0 t ADT: 2,000

SR 2013

Good

Over: Muddy Creek

0.1 mi S from SR 0021, Greene, PA

Built 2012 Load: 33.0 t ADT: 120

SR 3010

Good

Over: POPLAR RUN

3 MI W OF PUZZLETOWN, Blair, PA

Built 2013 Load: 33.0 t ADT: 56

Showing 13,351-13,400 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.