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

T-811

Fair

Over: WOLF RUN

1.2 MI. NW OF MUNCY BORO, Lycoming, PA

Built 1960 Load: 32.7 t ADT: 320

T-465

Fair

Over: SPRING CREEK

2.5 MI. EAST OF ELIMSPORT, Lycoming, PA

Built 1985 Load: 32.7 t ADT: 100

EDGEWOOD AVENUE

Fair

Over: MOSQUITO CREEK

DUBOISTOWN BOROUGH, Lycoming, PA

Built 1930 Load: 32.7 t ADT: 51

CARPENTER ST;MUNCY

Fair

Over: GLADE RUN

CARPENTER ST. MUNCY BORO, Lycoming, PA

Built 1920 Load: 32.7 t ADT: 504

GREEN STREET

Fair

Over: GLADE RUN

GREEN STREET; MUNCY BORO, Lycoming, PA

Built 1920 Load: 32.7 t ADT: 378

E. CENTRAL AVE

Fair

Over: HAGERMANS RUN

SOUTH WILLIAMSPORT BORO, Lycoming, PA

Built 1920 Load: 32.7 t ADT: 500

T-576

Fair

Over: MILL CREEK

1.5 MI. W OF HUNTERSVILLE, Lycoming, PA

Built 1930 Load: 32.7 t ADT: 30

SR 546-PA 546

Fair

Over: KNAPP CREEK

DUKE CENTER, McKean, PA

Built 1970 Load: 32.7 t ADT: 443

ON MAIN STREET

Fair

Over: E BR TUNUNGWANT CREEK

CITY OF BRADFORD, McKean, PA

Built 1960 Load: 32.7 t ADT: 5,257

HILTON AVENUE

Fair

Over: BLACKSMITH RUN

500 FT SW OF LONG STREET, McKean, PA

Built 1995 Load: 32.7 t ADT: 100

SR 358,HADLEY RDAD

Fair

Over: OVER LITTLE SHENANGO TR

PERRY TOWNSHIP, Mercer, PA

Built 1984 Load: 32.7 t ADT: 2,452

SR 2022,MILLBROOK

Fair

Over: OVER WOLF CREEK BRANCH

WORTH TOWNSHIP, Mercer, PA

Built 1976 Load: 32.7 t ADT: 139

SR 3019,ORANGEVILL

Fair

Over: OVER TOWEL WORKS RUN

CITY OF HERMITAGE, Mercer, PA

Built 1957 Load: 32.7 t ADT: 380

SR 3035,DUTCH LANE

Fair

Over: OVER PINE HOLLOW RUN

MUNICIPALITY OF HERMITAGE, Mercer, PA

Built 1973 Load: 32.7 t ADT: 4,581

BRIDGE 817,T-470

Fair

Over: OVER MATHAY RUN

HAMBURG RD,HEMPFIELD TWP., Mercer, PA

Built 1963 Load: 32.7 t ADT: 3,449

BRIDGE 1110,T-738

Fair

Over: OVER PINE RUN

CAREY RD.,NEW VERNON TWP., Mercer, PA

Built 1958 Load: 32.7 t ADT: 32

BRIDGE 2813,T-412

Fair

Over: OVER HOG BACK RUN

LONGVIEW RD,SHENANGO TWP., Mercer, PA

Built 1966 Load: 32.7 t ADT: 827

SR 322-US 322

Fair

Over: BUCK RUN

1 MI W BURNHAM, Mifflin, PA

Built 1964 Load: 32.7 t ADT: 25,278

SR 655-PA 655

Fair

Over: KISHACOQUILLAS CREEK

1 MI S MENNO, Mifflin, PA

Built 1969 Load: 32.7 t ADT: 2,277

SR 1002

Fair

Over: DRY CREEK

3 MI NE REEDSVILLE, Mifflin, PA

Built 1919 Load: 32.7 t ADT: 1,021

T-448 HAVICE VALLE

Fair

Over: HAVICE CREEK

600 FT E OF T 473, Mifflin, PA

Built 1991 Load: 32.7 t ADT: 212

T-471 TREASTER VAL

Fair

Over: HAVICE CREEK

400 FT EAST OF T-473, Mifflin, PA

Built 1991 Load: 32.7 t ADT: 300

T-335 NORTH RIVER

Fair

Over: MINEHART RUN

0.4 MILES W OF T-708, Mifflin, PA

Built 1993 Load: 32.7 t ADT: 182

PA 402 (LR 220)

Fair

Over: POND CREEK

MARSHALLS CREEK, Monroe, PA

Built 1940 Load: 32.7 t ADT: 5,534

PA 611 (LR 168)

Fair

Over: SCOT RUN

1MI.S.OF SCOTRUN, Monroe, PA

Built 1948 Load: 32.7 t ADT: 21,965

SR 3005(LR 45003)

Fair

Over: PRINCESS RUN

FIDDLETOWN RD.@ KLEINTOP, Monroe, PA

Built 1932 Load: 32.7 t ADT: 454

SR 3021(APPL.5767)

Fair

Over: APPENZELL CREEK

.3 M. N.OF APPENZELL, Monroe, PA

Built 1930 Load: 32.7 t ADT: 1,576

SPRUCE CABIN RD

Fair

Over: BRODHEAD CREEK

CANADENSIS, Monroe, PA

Built 1956 Load: 32.7 t ADT: 159

MAINLAND ROAD

Fair

Over: SKIPPACK CREEK

MAINLAND 3031C10, Montgomery, PA

Built 1977 Load: 32.7 t ADT: 2,954

BIG ROAD/3029B6

Fair

Over: SCIOTO CREEK

WEST OF PENNA-29 13J05, Montgomery, PA

Built 1956 Load: 32.7 t ADT: 7,835

MID-COUNTY EXWY.

Fair

Over: PLYMOUTH CREEK

NEXT CHEMICAL RD. 3368D04, Montgomery, PA

Built 1989 Load: 32.7 t ADT: 92,993

TRAFFIC ROUTE 663

Fair

Over: MACOBY CR/2805B6

1MI.TO GERYVILLE, Montgomery, PA

Built 1971 Load: 32.7 t ADT: 14,310

STENTON AVENUE

Fair

Over: PAPER MILL RUN/3369-E06

ERDENHEIM 30H13, Montgomery, PA

Built 1978 Load: 32.7 t ADT: 7,909

OLD READING PIKE

Fair

Over: YERGERS CREEK

0.4 M N SR422 ADC 3137-J1, Montgomery, PA

Built 1912 Load: 32.7 t ADT: 1,399

Old Sumneytown Pk

Fair

Over: E BRANCH PERKIOMEN CREEK

.2 Mi W PA-63 3030-C2, Montgomery, PA

Built 1841 Load: 32.7 t ADT: 2,130

MILL ROAD

Fair

Over: TACONY CREEK

0.5 MI E SR611 3371-A9, Montgomery, PA

Built 1930 Load: 32.7 t ADT: 800

Norris City Avenue

Fair

Over: East Branch Stony Creek

1400' NW US-202SB 3255-G8, Montgomery, PA

Built 1933 Load: 32.7 t ADT: 1,000

KEEN ROAD

Fair

Over: BROOKE EVANS CREEK

2 MI W SR4013 ADC 3139-J5, Montgomery, PA

Built 1930 Load: 32.7 t ADT: 300

TOWNSHIP LINE ROAD

Fair

Over: SCIOTO CREEK

0.4MI NE OF SR 73 3028-F1, Montgomery, PA

Built 1929 Load: 32.7 t ADT: 200

HEIMBACH ROAD

Fair

Over: SCIOTO CREEK

0.4MI NE OFSR0073 3028-G2, Montgomery, PA

Built 1937 Load: 32.7 t ADT: 712

KING OF PRUSSIA RD

Fair

Over: Crow Creek

200' S of US-202 3366-H7, Montgomery, PA

Built 1930 Load: 32.7 t ADT: 300

CLAHOR AVENUE

Fair

Over: DONNY BROOK

0.33MI NW SR0029 3253-G1, Montgomery, PA

Built 1986 Load: 32.7 t ADT: 1,480

STRATFORD AVENUE

Fair

Over: DONNY BROOK

0.52 MI W.SR 0029 3253-F2, Montgomery, PA

Built 1986 Load: 32.7 t ADT: 150

PA TPK (I-476)

Fair

Over: BR. TOWAMENCIN CRK

NEAR LANSDALE, Montgomery, PA

Built 1955 Load: 32.7 t ADT: 65,329

BABYLON ROAD

Fair

Over: TRIBUTARY TO PARK CREEK

500' NE PA-463 3146-D8, Montgomery, PA

Built 2000 Load: 32.7 t ADT: 2,700

SAWYERS WAY

Fair

Over: PENNYPACK CREEK

NR NORRISTWWN RD 3258-G2, Montgomery, PA

Built 1995 Load: 32.7 t ADT: 1,000

ZIEGLERVILLE ROAD

Fair

Over: GOSHENHOPPEN CREEK

400' NE SR 29/73 3029-D6, Montgomery, PA

Built 1915 Load: 32.7 t ADT: 1,000

Cranberry Blvd

Fair

Over: Trib to Schoolhouse Run

N of Trappe 3141-F6, Montgomery, PA

Built 1991 Load: 32.7 t ADT: 1,000

Mill Creek Road

Fair

Over: Mill Creek

0.4 Mi S PA-23 3478-G6, Montgomery, PA

Built 1919 Load: 32.7 t ADT: 3,700

Hollow Road

Fair

Over: Zacharias Creek

.3 M S of SR 73-3143C8, Montgomery, PA

Built 1930 Load: 32.7 t ADT: 500

Showing 4,301-4,350 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.