State profile · Below national median SD

California bridge safety

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

27,040
Public bridges
32.5%
Good condition
4.6%
Poor condition
4.6%
Structurally deficient

Total Bridges

27,040

Public highway bridges in California

Good Condition

32.5%

8,777 bridges rated 7-9

-17.5pp vs 50% benchmark

Poor Condition

4.6%

1,244 bridges rated 0-4

Structurally Deficient

4.6%

1,244 bridges flagged for repair priority

-2.4pp vs national avg 7.0%

California vs national bridge condition

California — Good condition share 32.5%
National avg

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

California — Structurally deficient share 15.3%
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 — California (FHWA NBI)

California32.45931952662722%34.67455621301775%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — California (FHWA NBI)

Counties (58)

Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136

California 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 California on the same metric.

39

Ohio

4.54% top marginal rate
Structure
Progressive
Burden @ $100K
$26,753

34

New Jersey

4.59% top marginal rate
Structure
Progressive
Burden @ $100K
$6,796
Selected

06

California

4.60% top marginal rate
Structure
Progressive
Burden @ $100K
$27,040

05

Arkansas

4.71% top marginal rate
Structure
Progressive
Burden @ $100K
$5,544

53

Washington

4.81% top marginal rate
Structure
Progressive
Burden @ $100K
$8,808

Bridges Needing Most Attention in California

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

SPRING CREEK RD

Poor

Over: FALL RIVER

0.5 MI N OF MCARTHUR RD, Shasta, CA

Built 1950 Load: 2.7 t ADT: 50

ORESTIMBA ROAD

Poor

Over: CCID MAIN CANAL

0.1 MI E DRAPER RD, Stanislaus, CA

Built 1919 Load: 2.9 t ADT: 684

CLARK STREET

Poor

Over: M.I.D. CANAL

0.1 MI WEST OF ROAD 26.0, Madera, CA

Built 1955 Load: 3.2 t ADT: 200

GULLING STREET

Structurally Deficient

Over: MIDDLE FORK FEATHER RIV

0.2 MI S SH 70, Plumas, CA

Built 1954 Load: 3.2 t ADT: 10,046

AVENUE 10

Poor

Over: COTTONWOOD CREEK

JUST E/O ROAD 23, Madera, CA

Built 1950 Load: 3.6 t ADT: 50

S BISHOP AVE

Poor

Over: CRESCENT DITCH

0.64 MI S/O MT WHITNEY AV, Fresno, CA

Built 1950 Load: 3.9 t ADT: 125

All Bridges in California

SERVICE ROAD

Unknown

Over: CHESTER AVE

NORTH OF 14TH STREET, Kern, CA

Built 1958 ADT: 13,562

BNSF RY & AMTRAK

Unknown

Over: CHESTER AVE

S OF TRUXTUN AVE, Kern, CA

Built 1958 ADT: 13,340

PEDESTRIAN WALKWAY

Unknown

Over: CHESTER AVENUE

N OF 14TH STREET, Kern, CA

Built 1958 ADT: 30,000

ROBERTS LANE

Unknown

Over: MANOR STREET

AT MANOR ST, Kern, CA

Built 1975 ADT: 16,180

BEALE AVE

Unknown

Over: UP RR,SUMNER ST,KENTUCKY

SOUTH MONTEREY ST, Kern, CA

Built 1960 ADT: 5,388

MT VERNON AVE

Unknown

Over: UP RR,BNSF RY,EDISON HWY

0.3 MI N CALIFORNIA ST., Kern, CA

Built 1960 ADT: 6,900

BNSF RY & AMTRAK

Unknown

Over: TRUXTUN AVENUE

E OF MOHAWK ST, Kern, CA

Built 1981 ADT: 12,200

UP RR

Unknown

Over: CHESTER AVENUE

N OF ROUTE 204, Kern, CA

Built 1982 ADT: 25,670

UNION AVE

Unknown

Over: UP RR & SUMNER ST

0.2 MI SOUTH OF SH 178, Kern, CA

Built 1987 ADT: 23,471

AIRPORT RUNWAY

Unknown

Over: 7TH STANDARD ROAD

0.7 MI E OF S.H. 65, Kern, CA

Built 1988 ADT: 18,000

BNSF RY & AMTRAK

Unknown

Over: H STREET

S OF TRUXTUN AVE, Kern, CA

Built 1989 ADT: 11,356

15TH ST

Unknown

Over: H STREET

'H' STREET, Kern, CA

Built 1989 ADT: 11,356

OSWELL STREET

Unknown

Over: UP TRACKS, EDISON HWY

1 MILE NORTH OF SR58, Kern, CA

Built 1991 ADT: 7,909

FAIRFAX ROAD

Unknown

Over: UP TRACKS, EDISON HWY

0.7 MI NORTH OF SR58, Kern, CA

Built 1992 ADT: 7,909

7TH STANDARD ROAD

Unknown

Over: BNSF RY, SANTA FE WAY

6 MI WEST OF SR99, Kern, CA

Built 2010 ADT: 7,852

MOHAWK STREET

Unknown

Over: WESTSIDE PARKWAY

NORTH OF KERN RIVER, Kern, CA

Built 2011 ADT: 26,177

WB SR 58 OFF-RAMP

Unknown

Over: KERN RIVER

NW OF TRUXTUN AVE, Kern, CA

Built 2020 ADT: 1,000

WESTSIDE PARKWAY

Unknown

Over: TRUXTUN AVENUE

NE OF COMMERCIAL WAY, Kern, CA

Built 2012 ADT: 12,200

SR 58 OFF-RAMP

Unknown

Over: TRUXTUN AVE

NE OF COMMERCIAL WAY, Kern, CA

Built 2019 ADT: 12,200

BNSF RY & AMTRAK

Unknown

Over: TRUXTUN AVENUE

E OF MOHAWK ST, Kern, CA

Built 1996 ADT: 12,200

BNSF RY (& AMTRAK)

Unknown

Over: Q STREET

SOUTH OF TRUXTUN AVENUE, Kern, CA

Built 1999 ADT: 6,525

BNSF RY (& AMTRAK)

Unknown

Over: Q STREET

SOUTH OF TRUXTUN AVENUE, Kern, CA

Built 1999 ADT: 6,525

PARKING LOT ACCESS

Unknown

Over: Q STREET

SOUTH OF TRUXTUN AVENUE, Kern, CA

Built 1999 ADT: 6,525

BNSF TRACKS

Unknown

Over: CALLOWAY DRIVE

0.5 MI SOUTH OF SR58, Kern, CA

Built 1990 ADT: 21,471

FRONTAGE ROAD

Unknown

Over: CALLOWAY DRIVE

0.5 MI SOUTH OF SR58, Kern, CA

Built 1990 ADT: 21,471

OAK CREEK ROAD

Unknown

Over: UP RR & BNSF RY, SR 14

350 FT WEST OF ROUTE 14, Kern, CA

Built 1999 ADT: 33,400

STATE ROUTE 41 SB

Unknown

Over: EXCELSIOR AVE

06-KIN-041-R48.26, Kings, CA

Built 1964 ADT: 1,000

STATE ROUTE 41 NB

Unknown

Over: EXCELSIOR AVE

06-KIN-041-R48.26, Kings, CA

Built 1964 ADT: 1,000

DOUTY ST

Unknown

Over: STATE ROUTE 198

06-KIN-198-R18.51-HAN, Kings, CA

Built 1967 ADT: 20,500

STATE ROUTE 198

Unknown

Over: 11TH AVENUE

06-KIN-198-R17.91-HAN, Kings, CA

Built 1967 ADT: 1,000

10TH AVENUE

Unknown

Over: STATE ROUTE 198

06-KIN-198-R18.96-HAN, Kings, CA

Built 1967 ADT: 20,500

AVENAL CUT-OFF RD

Unknown

Over: STATE ROUTE 198

06-KIN-198-4.99, Kings, CA

Built 1963 ADT: 17,500

WATERLOO AVE

Unknown

Over: INTERSTATE 5

06-KIN-005-7.09, Kings, CA

Built 1971 ADT: 31,000

XENIA AVE OC

Unknown

Over: INTERSTATE 5

06-KIN-005-4.42, Kings, CA

Built 1971 ADT: 19,200

UTICA AVE OC

Unknown

Over: INTERSTATE 5

06-KIN-005-12.36, Kings, CA

Built 1971 ADT: 29,000

25TH AVE OC

Unknown

Over: INTERSTATE 5

06-KIN-005-14.55, Kings, CA

Built 1971 ADT: 29,000

INTERSTATE 5 SB

Unknown

Over: SR 41

06-KIN-005-16.57, Kings, CA

Built 1971 ADT: 3,105

INTERSTATE 5 NB

Unknown

Over: SR 41

06-KIN-005-16.57, Kings, CA

Built 1971 ADT: 3,105

MILHAM AVENUE

Unknown

Over: INTERSTATE 5

06-KIN-005-19.05, Kings, CA

Built 1969 ADT: 19,300

QUEBEC AVE

Unknown

Over: INTERSTATE 5

06-KIN-005-24.28, Kings, CA

Built 1969 ADT: 19,300

AVENAL CUT-OFF RD

Unknown

Over: INTERSTATE 5

06-KIN-005-26.57, Kings, CA

Built 1969 ADT: 19,300

18TH AVENUE

Unknown

Over: STATE ROUTE 198

06-KIN-198-R10.56, Kings, CA

Built 1964 ADT: 21,300

HOUSTON AVE

Unknown

Over: STATE ROUTE 198

06-KIN-198-R12.11, Kings, CA

Built 1964 ADT: 27,500

STATE ROUTE 198

Unknown

Over: 14TH AVE

06-KIN-198-R14.77, Kings, CA

Built 1964 ADT: 1,000

SR 43

Unknown

Over: SR 198

06-KIN-043-18.22, Kings, CA

Built 1967 ADT: 9,120

12TH AVE OC

Unknown

Over: STATE ROUTE 198

06-KIN-198-R16.91, Kings, CA

Built 1985 ADT: 27,500

STATE ROUTE 41 SB

Unknown

Over: STATE ROUTE 198

06-KIN-041-R39.96, Kings, CA

Built 1998 ADT: 20,100

STATE ROUTE 41 NB

Unknown

Over: STATE ROUTE 198

06-KIN-041-R39.96, Kings, CA

Built 1998 ADT: 20,100

19TH AVENUE

Unknown

Over: STATE ROUTE 198

06-KIN-198-R9.47, Kings, CA

Built 2015 ADT: 19,250

HILL ROAD EAST

Unknown

Over: STATE ROUTE 29

01-LAK-029-R43.75, Lake, CA

Built 1972 ADT: 13,450

Showing 1,301-1,350 of 27,040 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.