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 0347 TR 347

Good

Over: SR 0081 NB & SB RAMPS

DUNMORE BORO OVER I-81, Lackawanna, PA

Built 1997 Load: 46.3 t ADT: 25,274

SR 3003

Good

Over: SPEERS RUN

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1997 Load: 46.3 t ADT: 5,962

SR 3008

Good

Over: TOMS RUN

PINE GROVE FURNACE, Cumberland, PA

Built 1998 Load: 46.3 t ADT: 762

SR 0015 NB

Good

Over: OVER BLOCKHOUSE CREEK

VILLAGE OF BUTTONWOOD, Lycoming, PA

Built 1998 Load: 46.3 t ADT: 6,017

SR8024 RAMP TO I84

Good

Over: SR0084 EXIT 1 RAMP

DUNMORE BORO OVER EXIT 1, Lackawanna, PA

Built 1997 Load: 46.3 t ADT: 1,650

SR 6

Good

Over: Laning Creek

1 MILE WEST OF WYSOX, Bradford, PA

Built 1998 Load: 46.3 t ADT: 17,075

SR 1006

Good

Over: US SR 322

2.5 MI N REEDSVILLE, Mifflin, PA

Built 1998 Load: 46.3 t ADT: 7,650

TWP RD 369

Good

Over: BLOCKHOUSE RUN

GILMORE TOWNSHIP, Greene, PA

Built 1998 Load: 46.3 t ADT: 50

EWING RD

Good

Over: BUSINESS 376 SR 3160

EWING ROAD OVER OLD SR 60, Allegheny, PA

Built 1998 Load: 46.3 t ADT: 562

SR 3005

Good

Over: PLUM RUN

2 MI. NW GREENMOUNT, Adams, PA

Built 1998 Load: 46.3 t ADT: 619

POPLAR STREET

Good

Over: B&P RR 1 MAIN 1 SIDING

800 FT WEST OF US 6, McKean, PA

Built 1999 Load: 46.3 t ADT: 400

SR 3009

Good

Over: NICK CREEK

AUBURN TWP 1.8M N WYO CTY, Susquehanna, PA

Built 1999 Load: 46.3 t ADT: 154

SR 2100 DUNHAM DR

Good

Over: SR 8024 (RAMP) & RR

DUNMORE BORO OVER SR 8024, Lackawanna, PA

Built 1998 Load: 46.3 t ADT: 2,788

I-81 NB

Good

Over: SR 8051 I-81 NB RAMPS

I-81 NB OVR SR8051, Luzerne, PA

Built 1999 Load: 46.3 t ADT: 24,394

CHESTER AVENUE

Good

Over: SEPTA

WEST 49TH STREET 3589 F10, Philadelphia, PA

Built 2000 Load: 46.3 t ADT: 3,724

SR0128

Good

Over: GLADE RUN

CADOGAN NO.1, Armstrong, PA

Built 1999 Load: 46.3 t ADT: 2,677

T-522

Good

Over: BLACK HOLE CREEK

1 MI NW OF MONTGOMERY, Lycoming, PA

Built 2000 Load: 46.3 t ADT: 50

SR 1021 Locust Pt.

Good

Over: LITTLE CONEWAGO CREEK

2 MILE S. OF STRINESTOWN, York, PA

Built 2000 Load: 46.3 t ADT: 2,046

SR 3008 KENNERDELL

Good

Over: OVER ALLEGHENY RIVER

CLINTON TOWNSHIP, Venango, PA

Built 2000 Load: 46.3 t ADT: 969

T-928 DUNCAN ROAD

Good

Over: OVER CALDWELL CREEK

500 FT W. WARREN CTY LINE, Crawford, PA

Built 2000 Load: 46.3 t ADT: 250

SR 3035

Good

Over: RAMP A

WEST OF DAUPHIN BORO, Dauphin, PA

Built 1999 Load: 46.3 t ADT: 2,802

SR 1002

Good

Over: LITTLE CHARTIERS CREEK

N. STRABANE & PETERS TWPS, Washington, PA

Built 2000 Load: 46.3 t ADT: 11,639

PA TPK (Toll 43)SB

Good

Over: GEORGES CK;ABRR

1.3MI N OF TOLLBOTH SB, Fayette, PA

Built 1999 Load: 46.3 t ADT: 4,443

SR 0119

Good

Over: LITTLE CRABTREE CREEK

HEMPFIELD @ UNITY TWP., Westmoreland, PA

Built 2000 Load: 46.3 t ADT: 5,776

SR 0088

Good

Over: MINGO CREEK

NEW EAGLE BOROUGH, Washington, PA

Built 2001 Load: 46.3 t ADT: 2,269

SR 79 SB

Good

Over: OVER WALNUT CREEK

MILL CREEK TOWNSHIP, Erie, PA

Built 2001 Load: 46.3 t ADT: 12,845

RAMP O

Good

Over: RAMPS L N Q R S

.1 MI. N. DV. PK 25A2, Chester, PA

Built 2001 Load: 46.3 t ADT: 4,874

T481 COUNTY BR#168

Good

Over: W.BR.BRIAR CREEK

1.5 MI NW OF BRIAR CREEK, Columbia, PA

Built 2001 Load: 46.3 t ADT: 50

2ND AVENUE

Good

Over: MINGO CREEK

SE ROYERSFRD 19C11/3252F3, Montgomery, PA

Built 2001 Load: 46.3 t ADT: 4,679

PA 164

Good

Over: SOUTH DRY RUN

1 MI.W.OF EAST FREEDOM, Blair, PA

Built 2001 Load: 46.3 t ADT: 1,368

SR 99-I 99

Good

Over: SR 8015 RAMP

0.5 MI N OF STATE COLLEGE, Centre, PA

Built 2002 Load: 46.3 t ADT: 13,665

PA TPK (TOLL 43)

Good

Over: SR 2025

BRIDGE @ DONORA INT., Washington, PA

Built 2000 Load: 46.3 t ADT: 5,633

7304 GAP VIEW RD.

Good

Over: CLARK CREEK TRIBUTARY

CLARK CREEK TRIBUTARY, Dauphin, PA

Built 1999 Load: 46.3 t ADT: 200

7364 ALLEGHENY ST

Good

Over: CLARKS CREEK

CLARK CREEK, Dauphin, PA

Built 1999 Load: 46.3 t ADT: 750

SR 4012

Good

Over: SHADIGEE CREEK

STARRUCCA BO @ JNC SR4039, Wayne, PA

Built 2003 Load: 46.3 t ADT: 118

Cella Rd Bridge

Good

Over: CONNOQUENESSING CREEK

@ INTER. W/ SR 1008, Beaver, PA

Built 2003 Load: 46.3 t ADT: 307

SR 0015 NB

Good

Over: TIOGA RIVER & SR 2005

0.5MI.NORTH OF BLOSSBURG, Tioga, PA

Built 2003 Load: 46.3 t ADT: 6,178

SR 0015 SB

Good

Over: TIOGA RIVER & SR 2005

.05M. NORTH OF BLOSSBURG, Tioga, PA

Built 2004 Load: 46.3 t ADT: 5,663

SR 3019

Good

Over: SPICER BROOK

1 MI.N.NEW BUENA VISTA, Bedford, PA

Built 2004 Load: 46.3 t ADT: 458

ON TSR 534

Good

Over: HORNING RUN

2 MI N CUBA MILLS, Juniata, PA

Built 2004 Load: 46.3 t ADT: 798

SR 239

Good

Over: OVER WEST CREEK

1 MILE NORTH OF BENTON, Columbia, PA

Built 2004 Load: 46.3 t ADT: 510

SR 1029

Good

Over: SHADE CREEK

HILLSBORO, Somerset, PA

Built 2005 Load: 46.3 t ADT: 128

SR 3010

Good

Over: POPLAR RUN

PUZZLETOWN, Blair, PA

Built 2005 Load: 46.3 t ADT: 460

PA 100 NB

Good

Over: SR 6222 AND SCHAEFER RUN

PA 100 NB OVER SR 6222, Lehigh, PA

Built 2005 Load: 46.3 t ADT: 6,540

SR 414

Good

Over: OVER PINE CREEK

VILLAGE OF JERSEY MILLS, Lycoming, PA

Built 2005 Load: 46.3 t ADT: 597

US 222 NB

Good

Over: EASTERN IND.ACCESS RD.

US 222 NB/EASTERN IND.RD., Lehigh, PA

Built 2005 Load: 46.3 t ADT: 20,363

US 222 SB & RAMP

Good

Over: EASTERN IND.ACCESS RD.

US 222 SB/EASTERN IND.RD., Lehigh, PA

Built 2005 Load: 46.3 t ADT: 20,403

DEKALB PIKE(US202)

Good

Over: ABRAMS RUN

AT GULPH RD 34C01/3366H7, Montgomery, PA

Built 2003 Load: 46.3 t ADT: 28,745

SR 239

Good

Over: EAST BRANCH RAVEN CREEK

2.5 MI. EAST OF BENTON, Columbia, PA

Built 2006 Load: 46.3 t ADT: 1,329

PA TPK (I-576)

Good

Over: POTATO GARDEN RD RUN

FINDLAY, Allegheny, PA

Built 2006 Load: 46.3 t ADT: 2,025

Showing 18,201-18,250 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.