State profile · Above national median SD

Pennsylvania bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Pennsylvania — drawn straight from the FHWA National Bridge Inventory.

14,867
Public bridges
37.4%
Good condition
10.5%
Poor condition
10.5%
Structurally deficient

Total Bridges

14,867

Public highway bridges in Pennsylvania

Good Condition

37.4%

5,564 bridges rated 7-9

-12.6pp vs 50% benchmark

Poor Condition

10.5%

1,561 bridges rated 0-4

Structurally Deficient

10.5%

1,561 bridges flagged for repair priority

3.5pp vs national avg 7.0%

Pennsylvania vs national bridge condition

Pennsylvania — Good condition share 37.4%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania — Structurally deficient share 35.0%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Condition Distribution

Bridge inventory deck-condition mix — Pennsylvania (FHWA NBI)

Pennsylvania37.42516983924127%35.29965695836416%10.499764579269524%10.499764579269524%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Pennsylvania (FHWA NBI)

Counties (67)

Adams 94 Allegheny 356 Armstrong 109 Beaver 84 Bedford 99 Berks 187 Blair 83 Bradford 114 Bucks 184 Butler 142 Cambria 67 Cameron 21 Carbon 29 Centre 183 Chester 285 Clarion 119 Clearfield 195 Clinton 147 Columbia 187 Crawford 263 Cumberland 239 Dauphin 283 Delaware 269 Elk 95 Erie 331 Fayette 341 Forest 51 Franklin 215 Fulton 97 Greene 209 Huntingdon 162 Indiana 214 Jefferson 140 Juniata 109 Lackawanna 212 Lancaster 509 Lawrence 162 Lebanon 221 Lehigh 255 Luzerne 307 Lycoming 301 McKean 166 Mercer 273 Mifflin 129 Monroe 214 Montgomery 608 Montour 74 Northampton 253 Northumberland 193 Perry 102 Philadelphia 584 Pike 108 Potter 145 Schuylkill 199 Snyder 106 Somerset 400 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 619 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Pennsylvania on the same metric.

26

Michigan

8.92% top marginal rate
Structure
Progressive
Burden @ $100K
$1,188

02

Alaska

10.12% top marginal rate
Structure
Progressive
Burden @ $100K
$909
Selected

42

Pennsylvania

10.50% top marginal rate
Structure
Progressive
Burden @ $100K
$14,867

38

North Dakota

10.84% top marginal rate
Structure
Progressive
Burden @ $100K
$4,242

22

Louisiana

11.00% top marginal rate
Structure
Progressive
Burden @ $100K
$12,699

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by composite NBI rating. Each is inspected at least every 24 months.

SR0286

Poor

Over: KISKIMINETAS RIVER

SALTSBURG, Indiana, PA

Built 1985 Load: 0.9 t ADT: 4,169

T-783 HARRIS HILL

Structurally Deficient

Over: TOBYS CREEK

100 FT NE OF SR 309, Luzerne, PA

Built 1920 Load: 0.9 t ADT: 220

BRIDGE 2805,T-303

Structurally Deficient

Over: OVER SHENANGO RIVER TRIB

HEASLEY RD SHENANGO TWP, Mercer, PA

Built 1922 Load: 0.9 t ADT: 89

SR 3014

Poor

Over: LAUREL HILL CREEK

BARRONVALE, Somerset, PA

Built 1962 Load: 0.9 t ADT: 167

Clark Street

Structurally Deficient

Over: Fallen Timber Run

Clark St, Hooversville, Somerset, PA

Built 1910 Load: 0.9 t ADT: 100

SR 4012

Structurally Deficient

Over: LOYALSOCK CREEK

BORO OF FORKSVILLE, Sullivan, PA

Built 1850 Load: 0.9 t ADT: 137

All Bridges in Pennsylvania

HIGH ST & SR 2016

Unknown

Over: LYCOMING CREEK & RAMPS

CITY OF WMSPT., HIGH ST., Lycoming, PA

Built 1963 ADT: 4,816

SR 3027

Unknown

Over: OVER SR 220

PORTER TWP E JERSEY SHORE, Lycoming, PA

Built 1968 ADT: 9,314

US 15 SBL

Unknown

Over: OVER FOY AVE-3036

.5 MI NORTH OF WMSPT., Lycoming, PA

Built 1990 ADT: 4,362

US 15 NBL

Unknown

Over: OVER T-395 COLVIN ROAD

3 MI. N. OF WILLIAMSPORT, Lycoming, PA

Built 1990 ADT: 100

US 15

Unknown

Over: OVER SR 3026

3.5 MI.N.OF WILLIAMSPORT, Lycoming, PA

Built 1993 ADT: 5,332

US 15

Unknown

Over: OVER SR 3026

3.5 MI.N.OF WILLIAMSPORT, Lycoming, PA

Built 1993 ADT: 5,332

US 15 NB

Unknown

Over: PA 973

PERRYVILLE, Lycoming, PA

Built 1993 ADT: 1,161

US 15

Unknown

Over: OVER SR 3029

1 MI.N.OF COGAN STATION, Lycoming, PA

Built 1993 ADT: 136

SR 8002 RAMP A

Unknown

Over: OVER 180E/WB,RAMP B US15

CITY OF WILLIAMSPORT, Lycoming, PA

Built 1974 ADT: 18,873

SR15 NB

Unknown

Over: OVER T-811 & BECK RUN

1 MILE NORTH,BUTTONWOOD, Lycoming, PA

Built 1998 ADT: 114

SR 15 NORTH BOUND

Unknown

Over: OVER SR 284

1 MI.SOUTH OF BUTTONWOOD, Lycoming, PA

Built 1998 ADT: 112

SR 15 NB/SB

Unknown

Over: I-180,VIA BELLA,SEDA R.R

WMSPT SPUI MARKET STREET, Lycoming, PA

Built 2006 ADT: 12,246

SR 184

Unknown

Over: SR 15 NB/SB

Steam Valley, Lycoming, PA

Built 2008 ADT: 6,017

SR 15 SB

Unknown

Over: SR 4011 GREEN MTN ROAD

4 MI NORTH OF TROUT RUN, Lycoming, PA

Built 2009 ADT: 225

SR 15 NB

Unknown

Over: SR 4011

NB 15 OVER STEAM VALLEY, Lycoming, PA

Built 2010 ADT: 225

SR 219-US 219

Unknown

Over: TOWNSHIP ROAD 369

1 MI N BRADFORD, McKean, PA

Built 1977 ADT: 100

SR 346-PA 346

Unknown

Over: T398/WESTERN NY & PA RR

ELDRED BORO, McKean, PA

Built 1975 ADT: 50

SR 219-US 219

Unknown

Over: SR 4002

2 MILES SOUTH OF BRADFORD, McKean, PA

Built 2003 ADT: 2,362

SR 219-US 219

Unknown

Over: FORMAN ST & TUNUNGWANT C

CITY OF BRADFORD, McKean, PA

Built 2007 ADT: 2,798

SR 219-US 219

Unknown

Over: FORMAN ST & TUNUNGWANT C

CITY OF BRADFORD, McKean, PA

Built 2006 ADT: 2,798

SR 219-US 219

Unknown

Over: SR 4015 (ELM STREET)

CITY OF BRADFORD, McKean, PA

Built 2006 ADT: 5,299

SR 219-US 219

Unknown

Over: SR 4013 (PA 46)

OVER KENDALL AVE, McKean, PA

Built 2006 ADT: 4,769

SR 219-US 219

Unknown

Over: SR 4015 (ELM STREET)

CITY OF BRADFORD, McKean, PA

Built 2008 ADT: 5,299

SR 219-US 219

Unknown

Over: SR 4013 (PA 46)

OVER KENDALL AVE, McKean, PA

Built 2007 ADT: 4,642

SR 58,GROVE CITY

Unknown

Over: OVER SR 79 NB / SB

FINDLEY TOWNSHIP, Mercer, PA

Built 1963 ADT: 9,034

SR 60,SB BEAVER

Unknown

Over: OVER T-369,HEWITT ROAD

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 ADT: 50

SR 376 EB

Unknown

Over: SR 80, EB & WB

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 ADT: 11,377

SR 62,SHNGO.VLY.EX

Unknown

Over: OVER RIVERSIDE DR/RIVER

CITY OF SHARON, Mercer, PA

Built 1956 ADT: 49

SR 62,FRANKLIN RD.

Unknown

Over: OVER SR 79,NB/SB

JACKSON TOWNSHIP, Mercer, PA

Built 1965 ADT: 7,014

SR 79,NB

Unknown

Over: OVER SR 80,EB/WB

FINDLEY TOWNSHIP, Mercer, PA

Built 1965 ADT: 12,866

SR 2102,CLNTVLLE R

Unknown

Over: OVER SR 79,NB

FINDLEY TOWNSHIP, Mercer, PA

Built 1966 ADT: 7,292

SR 79,NB

Unknown

Over: OVER SR2014,B&LE,MILL CR

FINDLEY TOWNSHIP, Mercer, PA

Built 1966 ADT: 1,673

SR 2103,MILL BROOK

Unknown

Over: OVER SR 79,NB/SB

JACKSON TOWNSHIP, Mercer, PA

Built 1966 ADT: 7,014

SR 79,SB

Unknown

Over: OVER SR 1009

NEW VERNON TOWNSHIP, Mercer, PA

Built 1969 ADT: 1,001

SR 80,EB

Unknown

Over: OVER SR 718,SIEG HILL RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1964 ADT: 2,631

SR 80,WB

Unknown

Over: OVER SR 718,SIEG HILL RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1964 ADT: 2,631

SR 80,EB

Unknown

Over: OVER SR 18,NEW CASTLE RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1993 ADT: 6,812

SR 80,WB

Unknown

Over: OVER SR 18,NEW CASTLE RD

SHENANGO TOWNSHIP, Mercer, PA

Built 1994 ADT: 6,812

SR 80,EB

Unknown

Over: OVER SR 318,W MDDSX-MER

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 ADT: 2,967

SR 80,WB

Unknown

Over: OVER SR 318,W MDDSX-MER

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 ADT: 2,967

SR 80,EB

Unknown

Over: OVER T300,GREENFIELD RD

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1965 ADT: 49

SR 80,WB

Unknown

Over: OVER T300,GREENFIELD RD

LACKAWANNOCK TOWNSHIP, Mercer, PA

Built 1965 ADT: 49

SR 80,EB

Unknown

Over: OVER SR 3007,MRCR-PLSKI

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 ADT: 658

SR 80,WB

Unknown

Over: OVER SR 3007,MRCR-PLSKI

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 ADT: 658

SR 80,EB

Unknown

Over: OVER SR 19 NB/SB,PERRY

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 ADT: 1,833

SR 80,WB

Unknown

Over: OVER SR 19 NB/SB,PERRY

EAST LACKAWANNOCK TWP., Mercer, PA

Built 1965 ADT: 1,833

SR 80,WB

Unknown

Over: OVER SR 258,BUTLER PIKE

FINDLEY TOWNSHIP, Mercer, PA

Built 1966 ADT: 2,720

SR 80,EB

Unknown

Over: OVER SR 173,GROVE CITY

WOLF CREEK TOWNSHIP, Mercer, PA

Built 1965 ADT: 2,502

SR 318,MAIN ST

Unknown

Over: OVER I-376,NB/SB BEAVER

SHENANGO TOWNSHIP, Mercer, PA

Built 1966 ADT: 6,644

SR 358,HADLEY ROAD

Unknown

Over: OVER SR 79,NB/SB

NEW VERNON TOWNSHIP, Mercer, PA

Built 1969 ADT: 6,474

Showing 1,301-1,350 of 14,867 bridges

Related

All states → | National rankings → | Understanding conditions → | SD bridges explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

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.