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 4002

Good

Over: FALL RUN

0.5 MI W OF SHUNK-FOX TWP, Sullivan, PA

Built 2014 Load: 38.2 t ADT: 210

PA 61 (LR 141)

Good

Over: PINE CREEK

100 FT.S. OF PA 895 WEST, Schuylkill, PA

Built 2014 Load: 38.2 t ADT: 20,281

SR 555-PA 555

Good

Over: TROUT RUN

BENEZETTE, Elk, PA

Built 2015 Load: 38.2 t ADT: 453

SR 0087 TR 87

Good

Over: MEHOOPANY CREEK

MEHOOPNY TP .5M W SR 3003, Wyoming, PA

Built 2015 Load: 38.2 t ADT: 959

NORTH STREET

Good

Over: NESHANNOCK CREEK

037007 NEW CASTLE-NORTH S, Lawrence, PA

Built 2015 Load: 38.2 t ADT: 2,000

I-81 NB

Good

Over: SR 2017 OLD BOSTON ROAD

LAFLIN BORO OVER SR 2017, Luzerne, PA

Built 2015 Load: 38.2 t ADT: 26,655

I -81 SB

Good

Over: SR 2017 OLD BOSTON ROAD

LAFLIN BORO OVER SR 2017, Luzerne, PA

Built 2015 Load: 38.2 t ADT: 25,947

WEST NEW CASTLE ST

Good

Over: SULLIVAN RUN

0.04 MI W OF BROAD ST, Butler, PA

Built 2015 Load: 38.2 t ADT: 100

SR 1023

Good

Over: Little Chartiers Creek

1.9 mi S from SR 0019, Washington, PA

Built 2015 Load: 38.2 t ADT: 2,329

PA 33 (LR796)

Good

Over: POCONO CREEK

0.4 MI.S. OF I-80, Monroe, PA

Built 2015 Load: 38.2 t ADT: 23,590

SR 0011 TR 11

Good

Over: TR 6 W SR 8002 TO 11N

CLINTON TWP OVER TR 6, Wyoming, PA

Built 2015 Load: 38.2 t ADT: 4,191

Days Run Road

Good

Over: Days Run

Near Bailey Run Rd, Allegheny, PA

Built 2018 Load: 38.2 t ADT: 497

SR 4010

Good

Over: Wilson Run

2.5 Mi. N. of St. Thomas, Franklin, PA

Built 2016 Load: 38.2 t ADT: 661

SR 44-PA 44

Good

Over: S.BR. OSWAYO CREEK

CONEVILLE, Potter, PA

Built 2016 Load: 38.2 t ADT: 1,428

SR 219

Good

Over: Mead Run

Brockport, Elk, PA

Built 2016 Load: 38.2 t ADT: 4,935

CANAL RD (SR 921)

Good

Over: LOCUST RUN

3 MI EAST OF DOVER, York, PA

Built 2017 Load: 38.2 t ADT: 7,880

STEFFEN HILL ROAD

Good

Over: WALNUT BOTTOM RUN

849 WEST OF SR 0018, Beaver, PA

Built 2017 Load: 38.2 t ADT: 6,224

SR 35- PA 35

Good

Over: LOST CREEK

1 MI W OAKLAND MILLS, Juniata, PA

Built 2016 Load: 38.2 t ADT: 5,025

PA 764/BUS US 220

Good

Over: SANDY RUN

1 MI N OF GREENWOOD, Blair, PA

Built 2016 Load: 38.2 t ADT: 9,538

SR 0070

Good

Over: SR 3089

5.5 mi E from SR 0031, Westmoreland, PA

Built 2016 Load: 38.2 t ADT: 27,178

McClays Mill Rd

Good

Over: MIDDLE SPRING CREEK

2 MILES N OF SHIPPENSBURG, Cumberland, PA

Built 2017 Load: 38.2 t ADT: 1,002

STANDING STONE RD

Good

Over: HORN RUN

0.2 MI NORTH OF SR 1009, Huntingdon, PA

Built 2017 Load: 38.2 t ADT: 3,030

SOMERSET ST

Good

Over: U.S. ROUTE 30

NEAR STOYSTOWN, Somerset, PA

Built 2019 Load: 38.2 t ADT: 134

SR 0154 SH

Good

Over: Double Run

4 MI SE OF FORKSVILLE, Sullivan, PA

Built 2019 Load: 38.2 t ADT: 298

Flaugherty Run Rd.

Good

Over: SR 3160 - Business 376

1 Mi North of Old Airport, Allegheny, PA

Built 2017 Load: 38.2 t ADT: 9,928

Georgetown Road

Good

Over: Monocacy Creek

West of PA 191, Northampton, PA

Built 2017 Load: 38.2 t ADT: 2,468

US 30; SR 0030

Good

Over: BEAVER CREEK

ABBOTTSTOWN, Adams, PA

Built 2017 Load: 38.2 t ADT: 16,199

SR 4039 (Airport)

Good

Over: I-78 (LR 141)

Airport Rd Over I-78, Berks, PA

Built 2018 Load: 38.2 t ADT: 292

PA 240

Good

Over: W BR SUSQUEHANNA RIVER

199 FEET WEST OF TR 219, Cambria, PA

Built 2017 Load: 38.2 t ADT: 1,039

SR 4018

Good

Over: Cross Creek

0.5 mi W from SR 0050, Washington, PA

Built 2017 Load: 38.2 t ADT: 182

PARK QUARRY RD.

Good

Over: CROWS RUN

004043 AT PARK QUARRY, Beaver, PA

Built 2017 Load: 38.2 t ADT: 80

T 809 bermud. Ch.

Good

Over: Bermudian Creek

2.6 mile SE Kralltown, York, PA

Built 2017 Load: 38.2 t ADT: 453

Service Rd "A"

Good

Over: CSVT SR 15

.5 MI N OF NORTHUMBERLAND, Northumberland, PA

Built 2018 Load: 38.2 t ADT: 105

SR 4010

Good

Over: CONEWAGO CREEK

3.5 MI.N.W. ARENDTSVILLE, Adams, PA

Built 2018 Load: 38.2 t ADT: 1,089

PA 36

Good

Over: THREE SPRINGS RUN

289 FEET SOUTH OF TR 869, Bedford, PA

Built 2018 Load: 38.2 t ADT: 4,027

T-665 (Cty Br. 106

Good

Over: LYCOMING CREEK

INTER. SR14 @ MARSH HILL, Lycoming, PA

Built 2018 Load: 38.2 t ADT: 200

SR 0028

Good

Over: Simpson Run

0.2 mi W SR 3003 Intersec, Jefferson, PA

Built 2020 Load: 38.2 t ADT: 4,913

SR4012

Good

Over: Slippery Rock Creek

1.3 mi W SR 308 Intersect, Butler, PA

Built 2018 Load: 38.2 t ADT: 803

Fisher Mill Rd

Good

Over: Manatawny Creek

Manatawny Bridge, Berks, PA

Built 2018 Load: 38.2 t ADT: 547

T-890 (CO.BR#43)

Good

Over: PENDLETON CREEK

1 MI.NW OF SOUTH WARREN, Bradford, PA

Built 2019 Load: 38.2 t ADT: 50

SR 2003

Good

Over: Huskins Run

150ft S SR 2005 Intersect, Armstrong, PA

Built 2021 Load: 38.2 t ADT: 176

CHESTNUT STREET

Good

Over: LEHIGH R/BRIDGE ST/NS RR

COPLAY/NORTHAMPTON, Lehigh, PA

Built 2018 Load: 38.2 t ADT: 11,259

SR 4020

Good

Over: PINE CREEK

FAIRMONT TP .5M E SR 4033, Luzerne, PA

Built 2018 Load: 38.2 t ADT: 378

T-359 TAYLOR BRDG

Good

Over: N. BR. BUFFALO CREEK

0.1 MI WEST OF RED BANK, Union, PA

Built 2018 Load: 38.2 t ADT: 400

SR 4011 (LR 53027)

Good

Over: Pine Creek

GAP STREET VALLEY VIEW, Schuylkill, PA

Built 2019 Load: 38.2 t ADT: 693

NAVAL HOLLOW ROAD

Good

Over: NAVAL HOLLOW CREEK

19 MI NW OF EMPORIUM, Elk, PA

Built 2019 Load: 38.2 t ADT: 20

SR 0711

Good

Over: Tubmill Creek

SAINT CLAIR TOWNSHIP, Westmoreland, PA

Built 2019 Load: 38.2 t ADT: 2,250

T-348 ARDERY RD

Good

Over: ARDERY RUN

0.4 MI NW OF U.S. 220, Centre, PA

Built 2019 Load: 38.2 t ADT: 50

T-320 (CO.BR.#18)

Good

Over: TOWANDA CREEK

.2 MI. S. OF INT. SR-414, Bradford, PA

Built 2020 Load: 38.2 t ADT: 100

Center Ave

Good

Over: OConnell Blvd

DK01 DOOKERS HOLLOW BR, Allegheny, PA

Built 2021 Load: 38.2 t ADT: 4,000

Showing 15,501-15,550 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.