Total Bridges
27,040
Public highway bridges in California
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
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)
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
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
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
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: 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 DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
HARDIN RD
FairOver: MAXWELL CREEK
1.6 MI SE POPE CYN ROAD, Napa, CA
Built 1909 Load: 17.2 t ADT: 140
MT VEEDER RD
FairOver: DRY CREEK
0.1 MI S DRY CREEK RD, Napa, CA
Built 1930 Load: 17.2 t ADT: 173
SODA CYN RD
FairOver: SODA CREEK
3.1 MI N SILVERADO TRAIL, Napa, CA
Built 1930 Load: 17.2 t ADT: 787
DONNER PASS RD
FairOver: SOUTH YUBA RIVER
.5 MI W/O SODA SPRINGS RD, Nevada, CA
Built 1924 Load: 17.2 t ADT: 1,020
DARLINGTON AVENUE
FairOver: BREA CREEK CHANNEL
100' N/O FRANKLIN STREET, Orange, CA
Built 1950 Load: 17.2 t ADT: 1,205
WISE RD
FairOver: AUBURN RAVINE
JUNCT WITH OPHIR RD, Placer, CA
Built 1940 Load: 17.2 t ADT: 1,611
POWERHOUSE RD
FairOver: SOUTH CANAL
0.45 MI W AUBURN-FOLSOM R, Placer, CA
Built 1940 Load: 17.2 t ADT: 262
DIAMOND MTN RD
FairOver: COOKS CREEK
3.6 MI NE BCKWTH GRNVLE R, Plumas, CA
Built 1950 Load: 17.2 t ADT: 240
SCHNEIDER CR RD
FairOver: MEADOW VALLEY CREEK
0.3 MI S OF BUCKS LAKE RD, Plumas, CA
Built 1968 Load: 17.2 t ADT: 120
CASE ROAD
FairOver: SAN JACINTO RIVER
0.8 MI S/E OF ELLIS AVE, Riverside, CA
Built 1927 Load: 17.2 t ADT: 6,189
ORANGEVALE AVENUE
FairOver: GOLD CREEK
0.1 MI W AMER RIVER CYN, Sacramento, CA
Built 1915 Load: 17.2 t ADT: 1,000
56TH AVE
FairOver: SOUTH SACRAMENTO DRAIN
100' E/O RTE 5, Sacramento, CA
Built 1970 Load: 17.2 t ADT: 3,163
FAIRVIEW ROAD
FairOver: ARROYO DE LAS VIBORAS
0.4 MI N ACQUISTAPACE RD, San Benito, CA
Built 1920 Load: 17.2 t ADT: 7,900
ROCKS ROAD
FairOver: PINACATE ROCK CREEK
EAST LITTLE MERRILL RD, San Benito, CA
Built 1930 Load: 17.2 t ADT: 1,200
KENDALL DR
FairOver: CABLE CREEK
0.5 MI S PALM AVE, San Bernardino, CA
Built 1937 Load: 17.2 t ADT: 21,102
CRESPO DR
FairOver: AL BAHR DRIVE
0.1 MI S/O SOLEDAD AVE, San Diego, CA
Built 1949 Load: 17.2 t ADT: 200
PUENTE DR
FairOver: CASTELLANA ROAD
0.18 MI E/O CRESPO DRIVE, San Diego, CA
Built 1949 Load: 17.2 t ADT: 10
EIGHT MILE ROAD
FairOver: WHITE SLOUGH (HONKER CUT
5 MI WEST OF I-5, San Joaquin, CA
Built 1936 Load: 17.2 t ADT: 958
WOODSON ROAD
FairOver: JAHANT SLOUGH
0.4 MI NE OF JAHANT & 99, San Joaquin, CA
Built 1930 Load: 17.2 t ADT: 700
BUCKLEY RD
FairOver: E BR SAN LUIS OBISPO CRK
0.5 MI S HIGUERA ST, San Luis Obispo, CA
Built 1915 Load: 17.2 t ADT: 4,717
HUASNA RD
FairOver: WEST BRANCH HUASNA CREEK
HUASNA TOWNSITE RD, San Luis Obispo, CA
Built 1930 Load: 17.2 t ADT: 401
TASSAJARA CR RD
FairOver: SANTA MARGARITA CREEK
WEST OF RTE 101, San Luis Obispo, CA
Built 1940 Load: 17.2 t ADT: 228
SANTA FE ROAD
FairOver: BR SAN LUIS OBISPO CREEK
1.6 MI N. OF BUCKLEY ROAD, San Luis Obispo, CA
Built 1920 Load: 17.2 t ADT: 1,311
VIA CARTA
FairOver: BRIZZOLARA CREEK
CAL POLY CAMPUS, San Luis Obispo, CA
Built 1949 Load: 17.2 t ADT: 500
EMERGENCY EXIT RD
FairOver: ALPINE CREEK
SOUTH OF SR 84, San Mateo, CA
Built 1981 Load: 17.2 t ADT: 1
US HIGHWAY 101 NB
FairOver: NOJOQUI CREEK
05-SB-101-56.00, Santa Barbara, CA
Built 1930 Load: 17.2 t ADT: 11,000
BLACK ROAD
FairOver: UP RR & AMTRAK
2.0 MI N ASSOCIATED RD, Santa Barbara, CA
Built 1943 Load: 17.2 t ADT: 1,003
MISSION CANYON RD
FairOver: MISSION CREEK
0.15 MI N ALAMEDA PDRE SE, Santa Barbara, CA
Built 1891 Load: 17.2 t ADT: 10,600
NEW AVE
FairOver: RED FOX CREEK
1.1 MI N LEAVESLY ROAD, Santa Clara, CA
Built 1915 Load: 17.2 t ADT: 1,690
BROKAW RD
FairOver: GUADALUPE RIVER
0.4 MI S OF SH 101, Santa Clara, CA
Built 1958 Load: 17.2 t ADT: 34,700
VIRGINIA ST
FairOver: GUADALUPE RIVER
NEAR HWY 87, Santa Clara, CA
Built 1936 Load: 17.2 t ADT: 6,700
ALAMITOS ROAD
FairOver: HERBERT CREEK
1.45 MI SW JCT HICKS RD, Santa Clara, CA
Built 1985 Load: 17.2 t ADT: 10
FRAZIER LAKE ROAD
FairOver: PAJARO RIVER
0.6 MI S/E BLOOMFIELD AVE, Santa Clara, CA
Built 1927 Load: 17.2 t ADT: 3,800
OLD PAGE MILL ROAD
FairOver: MATADERO CREEK
0.7 MI N/O I-280, Santa Clara, CA
Built 1918 Load: 17.2 t ADT: 190
OLD PAGEMILL ROAD
FairOver: MATADERO CREEK
0.9 MI N/O I-280, Santa Clara, CA
Built 1918 Load: 17.2 t ADT: 205
STATE ROUTE 9
FairOver: SAN LORENZO RIVER
05-SCR-009-7.76, Santa Cruz, CA
Built 1927 Load: 17.2 t ADT: 21,100
GLENWOOD DR
FairOver: BEAN CREEK
0.5 MI N BEAN CREEK RD, Santa Cruz, CA
Built 1915 Load: 17.2 t ADT: 1,000
OAK RUN ROAD
FairOver: OAK RUN CREEK
6.6 MI S OF SR 299, Shasta, CA
Built 1912 Load: 17.2 t ADT: 530
SODA CREEK ROAD
FairOver: S FORK SODA CREEK
2 MI E OF I-5, Shasta, CA
Built 1960 Load: 17.2 t ADT: 80
PONDEROSA RD
FairOver: SOUTH FORK BEAR CREEK
2.0 MI N OF S.R. 44, Shasta, CA
Built 1930 Load: 17.2 t ADT: 90
NEVADA STREET
FairOver: NORTH FORK YUBA RIVER
SOUTH OF SR 49, Sierra, CA
Built 1938 Load: 17.2 t ADT: 500
BUTTERFLY AVE
FairOver: SACRAMENTO RIVER
W OF RIO BLANCO RD, Siskiyou, CA
Built 1915 Load: 17.2 t ADT: 320
PETERSBURG ROAD
FairOver: CECIL CREEK
.3 MI S/O CECILVILLE ROAD, Siskiyou, CA
Built 1967 Load: 17.2 t ADT: 29
CECILVILLE RD
FairOver: SHADOW CREEK
2 MI N/O EDDY GULCH ROAD, Siskiyou, CA
Built 1960 Load: 17.2 t ADT: 49
S FORK ROAD
FairOver: INDIAN CREEK
AT INDIAN CRK RD, Siskiyou, CA
Built 1965 Load: 17.2 t ADT: 58
MANKAS CORNER RD
FairOver: LEDGEWOOD CREEK
0.5 MI E SUISUN VALLEY RD, Solano, CA
Built 1935 Load: 17.2 t ADT: 2,634
CROCKER RD
FairOver: RUSSIAN RIVER
0.6 MI N/E OF S.R. 101, Sonoma, CA
Built 1938 Load: 17.2 t ADT: 3,200
VALLEY FORD RD
FairOver: GOSSAGE CREEK
6.6 MI INTERSECTION SR 1, Sonoma, CA
Built 1926 Load: 17.2 t ADT: 3,100
CALISTOGA RD
FairOver: HUMBUG CREEK
4.9 MI N/O SR 12, Sonoma, CA
Built 1935 Load: 17.2 t ADT: 5,800
BODEGA HIGHWAY
FairOver: ATASCADERO CREEK
9.3 MI E/O SR 1, Sonoma, CA
Built 1923 Load: 17.2 t ADT: 10,304
Showing 8,851-8,900 of 27,040 bridges
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.