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 0170 TR 170

Good

Over: LACKAWAXEN RIVER

CLINTON TWP .1 M S SR4004, Wayne, PA

Built 2001 Load: 48.1 t ADT: 605

SR 1004

Good

Over: WEST BRANCH MURRAY RUN

VILLAGE OF CALVERT, Lycoming, PA

Built 2001 Load: 48.1 t ADT: 368

MIDLAND BEAVER RD

Good

Over: WOLF RUN

100 NE OF SR 4034, Beaver, PA

Built 2001 Load: 48.1 t ADT: 6,838

SR 99-I 99

Good

Over: SR 322WB SR 3007 & RAMPS

STATE COLLEGE, Centre, PA

Built 2002 Load: 48.1 t ADT: 13,842

PA TPK (TOLL 43)

Good

Over: SR 1065

2MI. NORTH OF RT136 INT., Washington, PA

Built 2001 Load: 48.1 t ADT: 5,633

SR 3010

Good

Over: BLUE KNOB RUN

PUZZELTOWN, Blair, PA

Built 2005 Load: 48.1 t ADT: 460

SR 6100

Good

Over: IRON RUN TRIBUTARY

SR 6100 TREXLERTOWN, Lehigh, PA

Built 2005 Load: 48.1 t ADT: 9,762

UWCHLAN AVENUE

Good

Over: PA TURNPIKE(I-76);EB-722

EAST OF TPK TOLL 21E4, Chester, PA

Built 2005 Load: 48.1 t ADT: 17,553

SR2001 Browns mil

Good

Over: BR MUDDY RUN CREEK

BROWNS MILL, Franklin, PA

Built 2005 Load: 48.1 t ADT: 572

Dillerville Rd

Good

Over: AMTRAK

1/8 MILE SOUTH OF SR. 72, Lancaster, PA

Built 2007 Load: 48.1 t ADT: 15,708

T-503 Broadway Rd

Good

Over: Tuscarora Creek

1 Mi SW of New Berlin, Snyder, PA

Built 2007 Load: 48.1 t ADT: 200

PA 764 & TURN LANE

Good

Over: KETTLE CREEK

GREENWOOD, Blair, PA

Built 2007 Load: 48.1 t ADT: 3,147

BRIDGE 3116

Good

Over: OVER WOLF CREEK

_CHESTNUT STREET GROVE C, Mercer, PA

Built 2007 Load: 48.1 t ADT: 1,226

WOODROW RD

Good

Over: MOUNTAIN CREEK

500 FT NORTH OF SR 233, Cumberland, PA

Built 2007 Load: 48.1 t ADT: 25

T745 ENGLISH FLATS

Good

Over: SNAKE CREEK

3 MILES NW OF HALLSTEAD, Susquehanna, PA

Built 2008 Load: 48.1 t ADT: 75

BRIDGE 3108 T-878

Good

Over: BR. WOLF CREEK

DIAMOND ROAD PINE TWP, Mercer, PA

Built 2008 Load: 48.1 t ADT: 261

SR 93

Good

Over: EAST BRANCH BRIAR CREEK

0.75 Mi W. of Berwick, Columbia, PA

Built 2008 Load: 48.1 t ADT: 3,237

PA TPK (I-576)

Good

Over: McCASLIN RD ENLOW RUN

FINDLAY, Allegheny, PA

Built 2006 Load: 48.1 t ADT: 2,025

Old Village Road

Good

Over: Lyon Creek

Lyon Valley, Lehigh, PA

Built 2009 Load: 48.1 t ADT: 50

KUTZTOWN ROAD

Good

Over: MOLASSES CREEK

W- PENNSBURG 2804E08, Montgomery, PA

Built 2009 Load: 48.1 t ADT: 1,949

I-70 WBL

Good

Over: T390 LODGE ROAD

CRYSTAL SPRINGS, Fulton, PA

Built 2009 Load: 48.1 t ADT: 6,649

SR 1005

Good

Over: PLUNKETTS CREEK

3 MI NE OF PROCTOR, Lycoming, PA

Built 2010 Load: 48.1 t ADT: 331

T-600 SMITH ROAD

Good

Over: CHERRY RUN

BTW SR 3033 & SR 3056, Indiana, PA

Built 2010 Load: 48.1 t ADT: 27

PA 26

Good

Over: LAUREL RUN

0.8 MILE NORTH OF SR 1023, Huntingdon, PA

Built 2010 Load: 48.1 t ADT: 2,618

SR 0217

Good

Over: Miller Run

0.6 mi N of SR 0030, Westmoreland, PA

Built 2010 Load: 48.1 t ADT: 7,456

WEBER AVENUE

Good

Over: PENTZ RUN

1000 FT NW OF US 219 INT, Clearfield, PA

Built 2010 Load: 48.1 t ADT: 500

MONON ROAD

Good

Over: BECKETS RUN

100 SW OF TWP RD 636, Allegheny, PA

Built 2011 Load: 48.1 t ADT: 4,283

PA TPK (TOLL 43)

Good

Over: Jennings Run Fan Hollow

West of Exit M15, Fayette, PA

Built 2008 Load: 48.1 t ADT: 1,000

DOTTERS CORNER RD

Good

Over: JONAS CREEK

1.4 MI W OF 534, Monroe, PA

Built 2013 Load: 48.1 t ADT: 400

Connecticut Avenue

Good

Over: Cacoosing Creek

Green Valley Estates, Berks, PA

Built 2014 Load: 48.1 t ADT: 100

EVERGREEN ROAD

Good

Over: ALLEGHENY CREEK

125 FT. E OF RTE. 568, Berks, PA

Built 2015 Load: 48.1 t ADT: 50

CAVE ROAD (T-577)

Good

Over: DEEP CREEK

1000 FT SOUTH OF SR 4020, Schuylkill, PA

Built 2016 Load: 48.1 t ADT: 51

St Bernadine St

Good

Over: Angelica Creek

Angelica Park, Berks, PA

Built 2017 Load: 48.1 t ADT: 500

ENTERPRISE AVENUE

Good

Over: ACCESS ROAD

PHILA INTL AIRPORT 3699E9, Philadelphia, PA

Built 1980 Load: 48.1 t ADT: 6,800

CLAY CREEK ROAD

Good

Over: E. BR. WHITE CLAY CREEK

NEOFINNISCRONE DR 3800C10, Chester, PA

Built 1995 Load: 48.1 t ADT: 500

INNISCRONE DRIVE

Good

Over: E. BR WHITE CLAY CREEK

WOF AVONDALERD 3800C10, Chester, PA

Built 2000 Load: 48.1 t ADT: 250

BEAUMONT ROAD

Good

Over: DARBY CREEK

East of Newtown Rd 3476C6, Chester, PA

Built 1990 Load: 48.1 t ADT: 1,000

Valhalla Drive

Good

Over: Sambo Creek Tributary

0.5 MI N OF PA 209 BUS, Monroe, PA

Built 2002 Load: 48.1 t ADT: 200

Green Valley Road

Good

Over: Huntington Creek

500FT S OF MOORETWN RD, Luzerne, PA

Built 1993 Load: 48.1 t ADT: 50

TR682 CHINAMANS RO

Good

Over: EQUINUNK CREEK

.85M W SR 0247 CHINAMANS, Wayne, PA

Built 2013 Load: 48.1 t ADT: 15

Grove Road

Good

Over: Little Sugar Creek

5.5 miles S of Townville, Crawford, PA

Built 2021 Load: 48.1 t ADT: 50

BARR RD

Good

Over: WHITAKER RUN

450 W. of SR-1014, Indiana, PA

Built 2021 Load: 48.1 t ADT: 50

T-407;Red Top Rd

Good

Over: Trib. to Nyes Run

1 SE PXTONIA/TRIB BEAVER, Dauphin, PA

Built 2022 Load: 48.1 t ADT: 2,500

T-590 STODDARD RD.

Good

Over: Stillwater Creek

SUGAR GROVE TOWNSHIP, Warren, PA

Built 2020 Load: 48.1 t ADT: 100

West Penn Street

Good

Over: Sullivan Run

Btw West Penn & Miller St, Butler, PA

Built 2022 Load: 48.1 t ADT: 2,900

T-459 PITCOCK RD

Good

Over: DYERS FORK

SOUTH OF CUMMINS, Greene, PA

Built 1958 Load: 48.3 t ADT: 100

RAMP T

Good

Over: ELDER ST TURTLE CRK RR

TriBoro Expressway, Allegheny, PA

Built 2013 Load: 48.3 t ADT: 3,141

Mahaffey to Curry

Good

Over: CURRY RUN

CURRY RUN, Clearfield, PA

Built 2016 Load: 48.3 t ADT: 1,927

PA TPK (I-476)

Good

Over: Skippack Creek

N. of Lansdale Int., Montgomery, PA

Built 2014 Load: 48.3 t ADT: 50,307

SR 0980

Good

Over: Chartiers Creek

1.2 mi N from SR 0519, Washington, PA

Built 2016 Load: 48.3 t ADT: 3,813

Showing 18,601-18,650 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.