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

UP RR & AMTRAK

Unknown

Over: U.S. HIGHWAY 101

07-VEN-101-30.01-VEN, Ventura, CA

Built 1961 ADT: 121,000

STATE ROUTE 232

Unknown

Over: US HIGHWAY 101

07-VEN-232-0.43-OXN, Ventura, CA

Built 1975 ADT: 123,000

STATE ROUTE 33

Unknown

Over: STANLEY AVE

07-VEN-033-1.57, Ventura, CA

Built 1956 ADT: 3,000

WOOD ROAD

Unknown

Over: STATE ROUTE 1

07-VEN-001-11.59, Ventura, CA

Built 1957 ADT: 10,400

MISSLE CNTR POC

Unknown

Over: STATE ROUTE 1

07-VEN-001-10.69, Ventura, CA

Built 1957 ADT: 11,350

U.S. HIGHWAY 101

Unknown

Over: CAMARILLO SPRINGS RD

07-VEN-101-10.74-CMRL, Ventura, CA

Built 1959 ADT: 2,562

PLEASANT VALLEY RD

Unknown

Over: ROUTE 101

07-VEN-101-12.30-CMRL, Ventura, CA

Built 1959 ADT: 136,000

U.S. HIGHWAY 101

Unknown

Over: N101-N1 CONNECTOR RAMP

07-VEN-101-R32.70, Ventura, CA

Built 1963 ADT: 5,000

US HIGHWAY 101 SB

Unknown

Over: UP RR, AMTRAK, & SR 1

07-VEN-101-R38.95, Ventura, CA

Built 1973 ADT: 4,000

US HIGHWAY 101 NB

Unknown

Over: UP RR, AMTRAK, & SR 1

07-VEN-101-R38.95, Ventura, CA

Built 1973 ADT: 4,000

CHESTNUT-S101 ONRP

Unknown

Over: UP RR,AMTRAK,US 101,RMPS

07-VEN-101-30.10-VEN, Ventura, CA

Built 1961 ADT: 3,500

ASH ST POC

Unknown

Over: U.S. HIGHWAY 101

07-VEN-101-29.89-VEN, Ventura, CA

Built 1961 ADT: 121,000

CALIFORNIA ST

Unknown

Over: US HIGHWAY 101

07-VEN-101-30.15-VEN, Ventura, CA

Built 1961 ADT: 121,000

PADRE JUAN CYN RD

Unknown

Over: ROUTE 101

07-VEN-101-R36.76, Ventura, CA

Built 1973 ADT: 76,000

S101-E126 CONNECTO

Unknown

Over: ROUTE 101

07-VEN-101-26.39-VEN, Ventura, CA

Built 1963 ADT: 115,000

W126-N101 CONNECTO

Unknown

Over: N101-MAIN ST OFF RAMP

07-VEN-126-0.01-VEN, Ventura, CA

Built 1963 ADT: 11,200

VICTORIA AVE

Unknown

Over: ROUTE 126

07-VEN-126-1.45-VEN, Ventura, CA

Built 1963 ADT: 46,500

PEDESTRIAN WALKWAY

Unknown

Over: STATE ROUTE 126

07-VEN-126-1.83-VEN, Ventura, CA

Built 1963 ADT: 43,500

KIMBALL ROAD

Unknown

Over: ROUTE 126

07-VEN-126-2.80-VEN, Ventura, CA

Built 1994 ADT: 46,500

SATICOY AVE

Unknown

Over: ROUTE 126

07-VEN-126-4.49-VEN, Ventura, CA

Built 1963 ADT: 46,500

STATE ROUTE 118 EB

Unknown

Over: STATE ROUTE 126

07-VEN-118-0.52, Ventura, CA

Built 1994 ADT: 54,000

STATE ROUTE 118 WB

Unknown

Over: STATE ROUTE 126

07-VEN-118-0.52-VEN, Ventura, CA

Built 1963 ADT: 54,000

US HIGHWAY 101 SB

Unknown

Over: S101-VENTURA AV OFF-RAMP

07-VEN-101-30.59-VEN, Ventura, CA

Built 1963 ADT: 1,000

US HIGHWAY 101 NB

Unknown

Over: S101-VENTURA AV OFF-RAMP

07-VEN-101-30.59-VEN, Ventura, CA

Built 1963 ADT: 1,000

US HIGHWAY 101 SB

Unknown

Over: S101-N33,OLIVE, GARDEN

07-VEN-101-30.71-VEN, Ventura, CA

Built 1963 ADT: 41,400

US HIGHWAY 101 NB

Unknown

Over: S101-N33,OLIVE, GARDEN

07-VEN-101-30.71-VEN, Ventura, CA

Built 1963 ADT: 41,400

S33-S101 CONNECTOR

Unknown

Over: US HIGHWAY 101

07-VEN-033-0.03-VEN, Ventura, CA

Built 1962 ADT: 72,000

U.S. HIGHWAY 101

Unknown

Over: MOORPARK RD

07-VEN-101-4.06-THOK, Ventura, CA

Built 1962 ADT: 6,660

ROUTE 33

Unknown

Over: S33-MAIN ST OFF-RAMP

07-VEN-033-0.31-VEN, Ventura, CA

Built 1963 ADT: 2,700

US HIGHWAY 101 SB

Unknown

Over: WEST MAIN STREET

07-VEN-101-31.55-VEN, Ventura, CA

Built 1963 ADT: 3,500

US HIGHWAY 101 NB

Unknown

Over: WEST MAIN STREET

07-VEN-101-31.50-VEN, Ventura, CA

Built 1963 ADT: 3,500

LAS POSAS RD

Unknown

Over: ROUTE 101

07-VEN-101-15.89-CMRL, Ventura, CA

Built 1975 ADT: 148,000

BORCHARD RD

Unknown

Over: ROUTE 101

07-VEN-101-7.02-THOK, Ventura, CA

Built 1962 ADT: 161,000

LAS POSAS RD

Unknown

Over: STATE ROUTE 1

07-VEN-001-10.23, Ventura, CA

Built 1962 ADT: 8,600

EDWARDS OC

Unknown

Over: ROUTE 126

07-VEN-126-R6.95, Ventura, CA

Built 1965 ADT: 50,000

BRIGGS ROAD

Unknown

Over: ROUTE 126

07-VEN-126-R8.91, Ventura, CA

Built 1965 ADT: 50,000

LAURIE LANE POC

Unknown

Over: STATE ROUTE 126

07-VEN-126-R10.63-SPA, Ventura, CA

Built 1965 ADT: 47,000

STATE ROUTE 126 WB

Unknown

Over: ROUTE 150 (10TH ST)

07-VEN-126-R12.04-SPA, Ventura, CA

Built 1965 ADT: 5,800

STATE ROUTE 126 EB

Unknown

Over: ROUTE 150 (10TH ST)

07-VEN-126-R12.04-SPA, Ventura, CA

Built 1965 ADT: 5,800

PECK ROAD

Unknown

Over: ROUTE 126

07-VEN-126-R10.38-SPA, Ventura, CA

Built 1965 ADT: 47,000

WENDY DRIVE

Unknown

Over: ROUTE 101

07-VEN-101-7.89-THOK, Ventura, CA

Built 1967 ADT: 145,000

N23-N101, N101-S23

Unknown

Over: U.S. HIGHWAY 101

07-VEN-023-R3.29-THOK, Ventura, CA

Built 1964 ADT: 176,000

CENTRAL AVE

Unknown

Over: ROUTE 101

07-VEN-101-17.75-CMRL, Ventura, CA

Built 1964 ADT: 148,000

DEL NORTE BLVD

Unknown

Over: US HIGHWAY 101

07-VEN-101-19.17-OXN, Ventura, CA

Built 1964 ADT: 144,000

U.S. HIGHWAY 101

Unknown

Over: HAMPSHIRE RD

07-VEN-101-1.62-THOK, Ventura, CA

Built 1966 ADT: 37,000

VENTU PARK ROAD

Unknown

Over: US 101

07-VEN-101-6.19-THOK, Ventura, CA

Built 1966 ADT: 180,000

VENTU PARK ROAD

Unknown

Over: US 101

07-VEN-101-6.19-THOK, Ventura, CA

Built 1966 ADT: 180,000

ROUTE 118 EB

Unknown

Over: KUEHNER DR

07-VEN-118-R30.52-SIMV, Ventura, CA

Built 1968 ADT: 6,480

ROCKY PEAK RD

Unknown

Over: ROUTE 118

07-VEN-118-R32.43, Ventura, CA

Built 1968 ADT: 122,000

YOSEMITE ST

Unknown

Over: ROUTE 118

07-VEN-118-R29.56-SIMV, Ventura, CA

Built 1968 ADT: 132,000

Showing 7,451-7,500 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.