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

NEW HOPE ROAD

Good

Over: SUITOR SLOUGH

2.8 MI NE SAN JOQ CO LINE, Sacramento, CA

Built 1947 Load: 16.2 t ADT: 1,821

HOWE AVE

Good

Over: STRONG RANCH SLOUGH

0.3 MI N OF NORTHRUP AVE, Sacramento, CA

Built 1945 Load: 16.2 t ADT: 47,689

EL CAMINO AVE

Good

Over: CHICKEN RANCH SLOUGH

0.25 MI W FULTON AVE, Sacramento, CA

Built 1940 Load: 16.2 t ADT: 25,101

DEWEY DRIVE

Good

Over: ARCADE CREEK

S/O NORTHBROOK WAY, Sacramento, CA

Built 1940 Load: 16.2 t ADT: 22,851

PACHECO HIGHWAY

Good

Over: TEQUISQUITA SLOUGH

1.1 MI S FAIRWAY RD, San Benito, CA

Built 1920 Load: 16.2 t ADT: 400

STATE ROUTE 62

Good

Over: MET WTR DSTRCT AQUEDUCT

08-SBD-062-91.75, San Bernardino, CA

Built 1935 Load: 16.2 t ADT: 1,428

ARCHIBALD AVE

Good

Over: LOWER DEER CREEK CHANNEL

1.6 MI S OF ROUTE 60, San Bernardino, CA

Built 1947 Load: 16.2 t ADT: 22,691

5TH ST

Good

Over: CITY CRK FLOOD CONTROL

0.4 MI E VICTORIA ST, San Bernardino, CA

Built 1948 Load: 16.2 t ADT: 11,500

INLAND CENTER DR

Good

Over: LYTLE CAJON CHANNEL

0.6 MI NE MT VERNON AVE, San Bernardino, CA

Built 1945 Load: 16.2 t ADT: 12,400

STERLING AVENUE

Good

Over: WARM CREEK

700' N BASELINE RD, San Bernardino, CA

Built 1948 Load: 16.2 t ADT: 15,400

FOOTHILL BLVD

Good

Over: MIDDLE CHANNEL DAY WASH

0.1 MI W ROUTE 15, San Bernardino, CA

Built 1914 Load: 16.2 t ADT: 47,000

BUCKMAN SPRINGS RD

Good

Over: COTTONWOOD CREEK

1.5 MI S/O I-8, San Diego, CA

Built 1942 Load: 16.2 t ADT: 4,300

NORTH SANTA FE AVE

Good

Over: RANCHO GUAJOME

1.4MI S/O SR 76, San Diego, CA

Built 1936 Load: 16.2 t ADT: 16,315

EL CAMINO REAL

Good

Over: LOMA ALTA CREEK

700FT S/O OCEANSIDE BLVD, San Diego, CA

Built 1948 Load: 16.2 t ADT: 42,600

MESA GRANDE RD

Good

Over: SCHOLDER CREEK

2.6 MI S/O SR 76, San Diego, CA

Built 1943 Load: 16.2 t ADT: 129

BOULDER CREEK RD

Good

Over: CEDAR CREEK

5.6 MI S/O SR-78, San Diego, CA

Built 1944 Load: 16.2 t ADT: 77

WYNOLA RD

Good

Over: JIM GREEN CREEK

0.38 MI E/O SR 78/79, San Diego, CA

Built 1945 Load: 16.2 t ADT: 252

LAKESHORE DR

Good

Over: QUAIL CREEK

0.2 MI E/O PINO DR, San Diego, CA

Built 1941 Load: 16.2 t ADT: 676

CENTRE CITY PKWY

Good

Over: REIDY CREEK

0.45M N/O EL NORTE PKWY, San Diego, CA

Built 1948 Load: 16.2 t ADT: 8,000

OLD HIGHWAY 395

Good

Over: MOOSA CANYON CREEK

450FT N/O GOPHER CYN RD, San Diego, CA

Built 1943 Load: 16.2 t ADT: 6,100

RANCHO PARKWAY

Good

Over: BOLAS CREEK

0.2 MI E RTE I-15, San Diego, CA

Built 1950 Load: 16.2 t ADT: 47,900

OLD HWY 395

Good

Over: RAINBOW CREEK

0.4MI N/O RAINBOW GLEN RD, San Diego, CA

Built 1949 Load: 16.2 t ADT: 4,725

THORNTON ROAD

Good

Over: MOSHER SLOUGH

S DAVIS RD IN TX, San Joaquin, CA

Built 1931 Load: 16.2 t ADT: 26,616

ESCALON-BELLOTA RD

Good

Over: TEMPLE CREEK BRANCH

0.2 MI N OF SKIFF RD, San Joaquin, CA

Built 1926 Load: 16.2 t ADT: 2,194

GAWNE RD

Good

Over: DRAIN A

0.7 MI E MARIPOSA RD, San Joaquin, CA

Built 1935 Load: 16.2 t ADT: 427

WAGNER RD

Good

Over: SSJID CANAL

.01 MI N OF RIVER RD, San Joaquin, CA

Built 1928 Load: 16.2 t ADT: 328

MURPHY ROAD

Good

Over: DRAIN CANAL

2.8 MI S OF MARIPOSA RD, San Joaquin, CA

Built 1926 Load: 16.2 t ADT: 520

MAIN ST

Good

Over: TEMPLETON CREEK

0.35 MI SOUTH RAMADA DR, San Luis Obispo, CA

Built 1929 Load: 16.2 t ADT: 6,836

MAIN ST

Good

Over: NORTH FORK TEMPLETON CRK

0.3 MI SOUTH RAMADA DR, San Luis Obispo, CA

Built 1929 Load: 16.2 t ADT: 6,836

ADOBE ROAD

Good

Over: SAN LUISITO CREEK

0.1 MI W. OF SAN LUISITO, San Luis Obispo, CA

Built 1948 Load: 16.2 t ADT: 101

OLD COUNTY RD

Good

Over: PULGAS CREEK

SOUTH COMMERCIAL ST, San Mateo, CA

Built 1920 Load: 16.2 t ADT: 7,000

STATE ROUTE 1 NB

Good

Over: SANTA YNEZ RIVER

05-SB-001-22.52, Santa Barbara, CA

Built 1944 Load: 16.2 t ADT: 9,900

SYCAMORE AVE

Good

Over: LLAGAS CREEK

0.4 MI W/O BOWDEN AVE, Santa Clara, CA

Built 1928 Load: 16.2 t ADT: 780

EDMUNDSON AVE

Good

Over: LITTLE LLAGAS CRK

SUNNYSIDE AVE, Santa Clara, CA

Built 1915 Load: 16.2 t ADT: 2,410

CENTER AVE

Good

Over: CHURCH CREEK

0.3 MI S/ O CHURCH AVE, Santa Clara, CA

Built 1915 Load: 16.2 t ADT: 1,070

FRAZIER LAKE RD

Good

Over: FURLONG CREEK

BLOOMFIELD AVE, Santa Clara, CA

Built 1927 Load: 16.2 t ADT: 3,800

PLACER RD

Good

Over: DRY CREEK

0.35 MI N/E CLEAR CR RD, Shasta, CA

Built 1930 Load: 16.2 t ADT: 631

PLATINA RD

Good

Over: ARBUCKLE GULCH

15 MI S/W OF ONO, Shasta, CA

Built 1927 Load: 16.2 t ADT: 150

HWY 99-97 CUTOFF

Good

Over: SHASTA RIVER

1.1 MI E/O MONTAGUE GNADA, Siskiyou, CA

Built 1955 Load: 16.2 t ADT: 2,685

PUTAH CR RD

Good

Over: PLEASANTS CREEK

NEAR PLEASENT VALLEY RD, Solano, CA

Built 1907 Load: 16.2 t ADT: 500

PETALUMA HILL RD

Good

Over: LICHAU CREEK

0.1 MI N JCT OLD RDW HWY, Sonoma, CA

Built 1920 Load: 16.2 t ADT: 10,600

MELITA ROAD

Good

Over: SANTA ROSA CREEK

0.1 M S LOS ALAMOS RD, Sonoma, CA

Built 1915 Load: 16.2 t ADT: 500

8TH & 9TH STREET

Good

Over: M.I.D. LATERAL #4

S/O KANSAS, Stanislaus, CA

Built 1914 Load: 16.2 t ADT: 9,356

ELM AVENUE

Good

Over: PATTERSON ID MAIN CANAL

0.2 MI S LAS PALMAS, Stanislaus, CA

Built 1925 Load: 16.2 t ADT: 960

SONORA ROAD

Good

Over: S SAN JOAQUIN ID DITCH

.75 MI NW/O ORA BLOSSOM R, Stanislaus, CA

Built 1935 Load: 16.2 t ADT: 182

PLEASANT GROVE RD

Good

Over: KING SLOUGH

6.5 MI N/O RIEGO RD, Sutter, CA

Built 1931 Load: 16.2 t ADT: 1,427

STATE ROUTE 99

Good

Over: SHORT CREEK

02-TEH-099-3.67, Tehama, CA

Built 1912 Load: 16.2 t ADT: 11,500

STATE ROUTE 99

Good

Over: LAKE DRAW

02-TEH-099-2.35, Tehama, CA

Built 1912 Load: 16.2 t ADT: 11,500

STATE ROUTE 99

Good

Over: LONG CREEK

02-TEH-099-7.53, Tehama, CA

Built 1912 Load: 16.2 t ADT: 6,800

MERIDIAN RD

Good

Over: CAMPBELL CREEK OVERFLOW

0.1 MI S LASSEN RD, Tehama, CA

Built 1938 Load: 16.2 t ADT: 100

Showing 17,401-17,450 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.