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)

California45.2%48.3%GoodFairPoor (structurally 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

STATE ROUTE 1

Good

Over: HILLSIDE

05-MON-001-56.44, Monterey, CA

Built 1986 Load: 20.4 t ADT: 4,300

DOLAN ROAD

Good

Over: UP RR & AMTRAK

1.7 MI E SR 1, Monterey, CA

Built 1968 Load: 20.4 t ADT: 5,000

OLIVE HILL ROAD

Good

Over: SANTIAGO CREEK

50' S/O MODJESKA CYN RD, Orange, CA

Built 1970 Load: 20.4 t ADT: 150

MAGNOLIA AVENUE

Good

Over: CARBON CREEK CHANNEL

0.3 MI. S/O CRESCENT AVE., Orange, CA

Built 1959 Load: 20.4 t ADT: 28,100

HARBOR BLVD

Good

Over: UNION PACIFIC RR

0.4 MI N/O BASTANCHRY RD, Orange, CA

Built 1925 Load: 20.4 t ADT: 40,100

THIRD STREET

Good

Over: K STREET PEDESTRIAN PATH

K ST PD PATH UNDER 3RD ST, Sacramento, CA

Built 1968 Load: 20.4 t ADT: 4,568

GRANT LINE RD

Good

Over: FOLSOM SOUTH CANAL

0.1 MI W/O SUNRISE BLVD, Sacramento, CA

Built 1970 Load: 20.4 t ADT: 14,977

E58-MAIN ST OFF RP

Good

Over: BNSF RY, UP RR, & AMTRAK

08-SBD-058-R33.41-BSW, San Bernardino, CA

Built 1997 Load: 20.4 t ADT: 1,001

NATL TRAILS HWY

Good

Over: VERBENA WASH

1 MI E OF CRUCERO RD, San Bernardino, CA

Built 1930 Load: 20.4 t ADT: 108

EDISON AVE

Good

Over: CYPRESS CHANNEL

0.7 MI W OF 83 @ CYPRESS, San Bernardino, CA

Built 1969 Load: 20.4 t ADT: 22,260

MURPHY ROAD

Good

Over: ROADSIDE DRAIN

0.1 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 20.4 t ADT: 520

MURPHY ROAD

Good

Over: ROADSIDE DRAIN

0.7 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 20.4 t ADT: 520

MURPHY ROAD

Good

Over: IRRIGATION DITCH

1.0 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 20.4 t ADT: 520

STATE ROUTE 46

Good

Over: CHOLAME CREEK

05-SLO-046-50.66, San Luis Obispo, CA

Built 1941 Load: 20.4 t ADT: 14,000

PIERCE RD

Good

Over: CALABAZAS CREEK

NEAR SARA HILLS DR, Santa Clara, CA

Built 1996 Load: 20.4 t ADT: 2,840

E ZAYANTE RD

Good

Over: ZAYANTE CREEK

5.5 MI N GRAHAM HILL RD, Santa Cruz, CA

Built 1942 Load: 20.4 t ADT: 2,000

PETALUMA BLVD

Good

Over: SAN ANTONIO CREEK

04-SON-101-0.01, Sonoma, CA

Built 1929 Load: 20.4 t ADT: 100

STATE ROUTE 33

Good

Over: WESTLEY WASTEWAY

10-STA-033-18.92, Stanislaus, CA

Built 1948 Load: 20.4 t ADT: 3,550

KAUFFMAN AVE

Good

Over: LONG GULCH

0.8 MI E OF SR 99, Tehama, CA

Built 1984 Load: 20.4 t ADT: 348

RAWSON RD

Good

Over: SOUTH FORK JEWETT CREEK

0.2 MI S/O CORNING RD, Tehama, CA

Built 1962 Load: 20.4 t ADT: 617

STATE ROUTE 33

Good

Over: CHORRO GRANDE CREEK

07-VEN-033-36.13, Ventura, CA

Built 1981 Load: 20.4 t ADT: 340

STATE ROUTE 49

Good

Over: SIX MILE CREEK

10-CAL-049-6.51, Calaveras, CA

Built 1940 Load: 20.7 t ADT: 6,500

THIRD ST

Good

Over: WILDCAT CREEK

0.1 MI N MARKET AVE, Contra Costa, CA

Built 1955 Load: 20.7 t ADT: 3,119

VAN NESS AVE

Good

Over: UNDERGROUND PARKING LOT

NORTH OF TULARE ST, Fresno, CA

Built 1966 Load: 20.7 t ADT: 13,657

EEL RIVER DRIVE

Good

Over: SALMON CREEK

0.2 MI S OF US 101, Humboldt, CA

Built 1929 Load: 20.7 t ADT: 644

SOLEDAD CYN RD

Good

Over: INDIAN CYN CRK

0.4MI E/O AGUA DULCE CYN, Los Angeles, CA

Built 1946 Load: 20.7 t ADT: 1,204

MRSHAL PETALUMA RD

Good

Over: SAN ANTONIO CREEK

0.27 MI E CHILENO VLY RD, Marin, CA

Built 1929 Load: 20.7 t ADT: 328

STATE ROUTE 1

Good

Over: GRANITE CANYON

05-MON-001-64.33, Monterey, CA

Built 1932 Load: 20.7 t ADT: 11,100

STATE ROUTE 1

Good

Over: MORO CREEK

12-ORA-001-11.90-LGNB, Orange, CA

Built 1924 Load: 20.7 t ADT: 37,250

AUBURN FOLSOM RD

Good

Over: MINERS RAVINE

2.1 MI N DOUGLAS BLVD, Placer, CA

Built 1950 Load: 20.7 t ADT: 12,779

PACIFIC AVE

Good

Over: CLOSED ROADWAY

0.3 MI E/O SACRAMENTO ST., Placer, CA

Built 1970 Load: 20.7 t ADT: 1,663

21N10 IN L.B. CG

Good

Over: GRAY EAGLE CK

WITHIN CAMPGROUND, Plumas, CA

Built 1995 Load: 20.7 t ADT: 50

BELLEGRAVE AVENUE

Good

Over: BLY CHANNEL

0.4 MI. SW/O MISSION BLVD, Riverside, CA

Built 1966 Load: 20.7 t ADT: 3,000

BLUE RAVINE ROAD

Good

Over: WILLOW CREEK

0.1 MI W FOLSOM BLVD, Sacramento, CA

Built 1984 Load: 20.7 t ADT: 11,000

INTERSTATE 40 EB

Good

Over: BNSF RY & AMTRAK

08-SBD-040-R141.97-NED, San Bernardino, CA

Built 1973 Load: 20.7 t ADT: 7,350

KENDALL DR

Good

Over: DEVIL CREEK DIVERSION

100' N OF CAMPUS PKWY, San Bernardino, CA

Built 1957 Load: 20.7 t ADT: 21,824

MORRO RD

Good

Over: UNNAMED CREEK

0.4MI S/O FALLBROOK ST, San Diego, CA

Built 1943 Load: 20.7 t ADT: 696

GROSSMONT CENTR DR

Good

Over: MTDB LRT & SDIV RR

160 FT S/O FLETCHER PKWY, San Diego, CA

Built 1961 Load: 20.7 t ADT: 17,750

DAVIS ROAD

Good

Over: KETTLEMAN SLOUGH

1.0 MI N OF 8 MILE ROAD, San Joaquin, CA

Built 1928 Load: 20.7 t ADT: 5,015

TALLANT ROAD

Good

Over: MISSION CREEK

0.05 MI WEST ALAMAR, Santa Barbara, CA

Built 1971 Load: 20.7 t ADT: 1,400

NO DATA ENTERED

Good

Over: OSO CREEK

NO DATA ENTERED, Santa Barbara, CA

Built 1997 Load: 20.7 t ADT: 50

WARBURTON AVENUE

Good

Over: CALABAZAS CREEK

INTERSECTION CALABAZAS, Santa Clara, CA

Built 1958 Load: 20.7 t ADT: 1,300

STATE ROUTE 9

Good

Over: BOULDER CREEK

05-SCR-009-13.11, Santa Cruz, CA

Built 1931 Load: 20.7 t ADT: 12,100

MANOR LANE

Good

Over: ADOBE CREEK

0.77 MI N ADOBE RD, Sonoma, CA

Built 1960 Load: 20.7 t ADT: 150

ADOBE RD

Good

Over: LICHAU CREEK

0.08 MI E OLD REDWOOD HWY, Sonoma, CA

Built 1929 Load: 20.7 t ADT: 2,900

PASKENTA ROAD

Good

Over: MILL CREEK

2 MI W/O SIMPSON RD, Tehama, CA

Built 1950 Load: 20.7 t ADT: 600

OLD HWY 99 W

Good

Over: COYOTE CREEK

1.2 MI N FLORES AVE, Tehama, CA

Built 1940 Load: 20.7 t ADT: 6,000

STATE ROUTE 63

Good

Over: PACKWOOD CREEK

06-TUL-063-5.76-VIS, Tulare, CA

Built 1917 Load: 20.7 t ADT: 26,000

ROAD 152

Good

Over: N BRANCH TULE RIVER

@ AVE 184, Tulare, CA

Built 1943 Load: 20.7 t ADT: 980

TUOLUMNE RD

Good

Over: CURTIS CREEK

2.4 MI E/O SR 108, Tuolumne, CA

Built 1947 Load: 20.7 t ADT: 12,283

Showing 17,801-17,850 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.