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 851; DRACO RD.

Good

Over: LEIBS CREEK

2 MI.N.W. OF NEW PARK, York, PA

Built 1986 Load: 54.4 t ADT: 2,188

SR 3054

Good

Over: Tyler Run

South York, York, PA

Built 1971 Load: 54.4 t ADT: 17,203

SR 2101 DUNHAM DR

Good

Over: SR 8024 SEGS 250 & 500

DUNMORE BORO OVER SR 8024, Lackawanna, PA

Built 1998 Load: 54.4 t ADT: 2,788

SR 3021

Good

Over: JUNIATA RIVER

NEWTON HAMILTON BORO, Mifflin, PA

Built 1999 Load: 54.4 t ADT: 503

US 30 W.B.; SR0030

Good

Over: US 222 SB & NB

US 30 WB OVER PA272/US222, Lancaster, PA

Built 2001 Load: 54.4 t ADT: 67,734

WISSAHICKON AVENUE

Good

Over: WISSAHICKON CREEK

1.3 MI S SR63 ADC 3144-E5, Montgomery, PA

Built 2002 Load: 54.4 t ADT: 700

WALNUT STREET

Good

Over: OVER CHURCH RUN

TITUSVILLE WALNUT STREET, Crawford, PA

Built 2002 Load: 54.4 t ADT: 50

SR 3007

Good

Over: SR 3043

0.5 MI E OF STATE COLLEGE, Centre, PA

Built 2002 Load: 54.4 t ADT: 6,629

SR 1008 IRISH RD.

Good

Over: OVER BOLES RUN

VENANGO TOWNSHIP, Crawford, PA

Built 2002 Load: 54.4 t ADT: 626

SR 99-I 99

Good

Over: SR 144/SEDA-COG/NIT& B E

2 MI NW PLEASANT GAP, Centre, PA

Built 2001 Load: 54.4 t ADT: 10,873

SR 99-I 99

Good

Over: SR 144/SEDA-COG/NIT& B E

2 MILES N W PLEASANT GAP, Centre, PA

Built 2001 Load: 54.4 t ADT: 11,450

SR 22-US 22

Good

Over: SR 3002 ARCH ROCK ROAD

3 MI WEST OF MIFFLINTOWN, Juniata, PA

Built 2003 Load: 54.4 t ADT: 9,339

SR 219-US 219

Good

Over: BUFFALO & PITTSBURGH RR

DUBOIS, Clearfield, PA

Built 2003 Load: 54.4 t ADT: 12,542

SR 0706

Good

Over: OVERFLOW OF WYALUSING CK

VILLAGE OF CAMPTOWN, Bradford, PA

Built 2003 Load: 54.4 t ADT: 2,081

PORTERSVILLE ROAD

Good

Over: OVER CONNOQUENESSING CR.

@ELLPORT-PERRY TWP LINE, Lawrence, PA

Built 2004 Load: 54.4 t ADT: 5,331

SR1010

Good

Over: SOUTH BRANCH BEAR CREEK

KARNS CITY, Butler, PA

Built 2004 Load: 54.4 t ADT: 882

PA 550

Good

Over: E.BR.WARRIORS MARK RUN

1.7 MILE NORTH OF TR 350, Huntingdon, PA

Built 2005 Load: 54.4 t ADT: 961

T-577 KINBAHE RD

Good

Over: TOBY CREEK

1.6 mi E int. w/ SR 66, Clarion, PA

Built 2004 Load: 54.4 t ADT: 50

SR 93

Good

Over: TR. TO N. BR.BRIAR CREEK

3.5 MI E OF ORANGEVILLE, Columbia, PA

Built 2006 Load: 54.4 t ADT: 1,810

FORT WASHINGTON AV

Good

Over: PA 309 BY-PASS/ 3257-H7

UPPER DUBLIN TWP 30K03, Montgomery, PA

Built 2006 Load: 54.4 t ADT: 2,896

Grant Ave

Good

Over: Pine Creek

200 W of rte 8 millvale, Allegheny, PA

Built 2007 Load: 54.4 t ADT: 10,338

RIVER ROAD

Good

Over: DELAWARE CANAL

2 MI. TO LR 09140 26E11, Bucks, PA

Built 2007 Load: 54.4 t ADT: 2,152

SR 2034 HATCH HOLL

Good

Over: OVER ALDER RUN

AMITY TOWNSHIP_, Erie, PA

Built 2007 Load: 54.4 t ADT: 128

SR 0018

Good

Over: Bates Fork Creek

Just North of SR 4029, Greene, PA

Built 2007 Load: 54.4 t ADT: 1,286

SR 1055

Good

Over: Parks Creek

3 Mi. N of Rome Boro, Bradford, PA

Built 2008 Load: 54.4 t ADT: 399

SR 15 SBL

Good

Over: T-722

1.5 MI. S LAWRENCEVILLE B, Tioga, PA

Built 2008 Load: 54.4 t ADT: 4,416

BARKER ROAD

Good

Over: PRATHER CREEK

CHERRYTREE TWP, Venango, PA

Built 2008 Load: 54.4 t ADT: 120

OAKDALE DRIVE

Good

Over: TRIB TO HUNLOCK CREEK

100 FT N OF SR 4016, Luzerne, PA

Built 2008 Load: 54.4 t ADT: 103

SR 2007

Good

Over: KISHACOQUILLAS CREEK

2 MILES NORTH LEWISTOWN, Mifflin, PA

Built 2009 Load: 54.4 t ADT: 1,926

Lynn Road

Good

Over: Branch of Redstone Creek

Between Rt 40 & Lynn, Fayette, PA

Built 2008 Load: 54.4 t ADT: 225

Piney Fork Rd

Good

Over: Piney Fork Creek

3/4 MI NW of SR 3015, Allegheny, PA

Built 2015 Load: 54.4 t ADT: 675

T578 Blymire Rd

Good

Over: UNT to E Br. Codorus Crk

1.4 MI S of Winterstown, York, PA

Built 2016 Load: 54.4 t ADT: 100

E Graceville Rd

Good

Over: TUB MILL RUN

1.6 MI NORTH OF US 30, Bedford, PA

Built 2018 Load: 54.4 t ADT: 208

Cypher Rd

Good

Over: PIPERS RUN

2 MI EAST OF SR 26, Bedford, PA

Built 2018 Load: 54.4 t ADT: 645

Bonnie Brook Rd

Good

Over: Bonnie Brook

RINGNECK, Butler, PA

Built 2018 Load: 54.4 t ADT: 2,943

SR 0006

Good

Over: OVER MORRIS BRANCH

BORO OF WELLSBORO, Tioga, PA

Built 2022 Load: 54.4 t ADT: 10,935

U.S. ROUTE 209

Good

Over: TOMS CREEK

4.9 MILES NORTH OF SOUTH, Pike, PA

Built 2011 Load: 54.4 t ADT: 4,658

BRINKERTON RD

Good

Over: TOWNSHIP LINE RUN

UNITY TOWNSHIP, Westmoreland, PA

Built 2018 Load: 54.8 t ADT: 994

SR 3020. Lamor Rd

Good

Over: TR TO MAGARGEE RUN

JEFFERSON TWP, Mercer, PA

Built 2011 Load: 55.1 t ADT: 723

SR 1010

Good

Over: Brush Run Tributary

0.2 mi S from SR 0019, Washington, PA

Built 2014 Load: 55.1 t ADT: 11,967

SR 318 HUBB-W MID

Good

Over: SHENANGO RIVER TRIB

SHENANGO TWP, Mercer, PA

Built 2014 Load: 55.1 t ADT: 3,113

Irish Valley Road

Good

Over: LITTLE SHAMOKIN CR.

2 MI S OF AUGUSTAVILLE, Northumberland, PA

Built 2016 Load: 55.1 t ADT: 413

SR 0065 SB

Good

Over: FONTELLA ST.

TR 65 SB O/FONTELLA ST., Allegheny, PA

Built 1991 Load: 55.3 t ADT: 19,641

RAMP 8017 SB

Good

Over: RAMP T TO SR 65 NB

RAMP TO SR 65 NB, Allegheny, PA

Built 1976 Load: 55.3 t ADT: 2,622

RAMP KM

Good

Over: PA TPK (I-376)

BIG BEAVER BOROUGH, Beaver, PA

Built 1992 Load: 55.3 t ADT: 500

ROCKHILL ROAD

Good

Over: CSX SEPTA Beth Br.(ESPN)

N. PERKASIE 2808-C7 ADC, Bucks, PA

Built 1998 Load: 55.3 t ADT: 450

REXS RD T-390

Good

Over: MAHONING CREEK

0.2 MI. N OF SR 443, Carbon, PA

Built 1930 Load: 55.3 t ADT: 100

SR 36-PA 36

Good

Over: CHEST CREEK

WESTOVER, Clearfield, PA

Built 1996 Load: 55.3 t ADT: 1,295

SR 255-PA 255

Good

Over: MILL RUN

TYLER, Clearfield, PA

Built 1996 Load: 55.3 t ADT: 4,956

SR 1029

Good

Over: GLEN BROOK

1 MI NE OF BERWICK, Columbia, PA

Built 1989 Load: 55.3 t ADT: 423

Showing 19,451-19,500 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.