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
LUCAS VALLEY RD
FairOver: MILLER CREEK
0.87 MI N OF SR 101, Marin, CA
Built 1959 Load: 49.2 t ADT: 6,500
TRANCAS ST
FairOver: MILLIKEN CREEK
JUST WEST OF SR 121, Napa, CA
Built 1973 Load: 49.2 t ADT: 9,000
STATE ROUTE 55
FairOver: SANTIAGO CREEK
12-ORA-055-13.42-ORA, Orange, CA
Built 1962 Load: 49.2 t ADT: 248,000
INTERSTATE 80
FairOver: UP RR, BNSF RY, & AMTRAK
03-PLA-080-R20.69, Placer, CA
Built 1973 Load: 49.2 t ADT: 55,000
LAKE STREET
FairOver: TEMESCAL WASH
0.07 MI. S/O RTE. I-15 FW, Riverside, CA
Built 1980 Load: 49.2 t ADT: 18,090
KIRBY STREET
FairOver: HEMET CHANNEL
0.6 MI. N/O STETSON AVE., Riverside, CA
Built 1991 Load: 49.2 t ADT: 14,400
3RD ST
FairOver: TWIN WARM CREEK
0.25 MI E WATERMAN AVE, San Bernardino, CA
Built 1960 Load: 49.2 t ADT: 9,070
US HIGHWAY 101 SB
FairOver: WILLOW ROAD
05-SLO-101-6.45, San Luis Obispo, CA
Built 2012 Load: 49.2 t ADT: 27,000
HOEN AVENUE
FairOver: MATANZAS CREEK
0.1 M WEST OF CYPRESS WY, Sonoma, CA
Built 1972 Load: 49.2 t ADT: 22,000
MATTOLE ROAD
FairOver: MATTOLE RIVER
SHIELD'S FORD, Humboldt, CA
Built 1973 Load: 49.6 t ADT: 196
DALEWOOD ST
FairOver: BIG DALTON WASH
0.5MI W/O PUENTE AVE, Los Angeles, CA
Built 1956 Load: 49.6 t ADT: 15,347
MAGIC MOUNTAIN PKW
FairOver: SOUTH FK SANTA CLARA RIV
876 FT W/O BOUQUET CYN RD, Los Angeles, CA
Built 1995 Load: 49.6 t ADT: 37,000
MENDOCINO PASS RD
FairOver: MIDDLE FORK EEL RIVER
10.5 MI EAST OF COVELO, Mendocino, CA
Built 1983 Load: 49.6 t ADT: 779
CHINA CAMP ROAD
FairOver: LOS BANOS CREEK
0.55 MI WEST OF MONROE AV, Merced, CA
Built 1977 Load: 49.6 t ADT: 50
STATE ROUTE 60
FairOver: FAIRMOUNT BLVD
08-RIV-060-11.44-RIV, Riverside, CA
Built 1962 Load: 49.6 t ADT: 126,000
FERN WAY
FairOver: HUBERT CREEK
AT OLD CAZADERO RD, Sonoma, CA
Built 1958 Load: 49.6 t ADT: 100
CLARK AVENUE
FairOver: COLUSA DRAIN
1.5 MI S OF NORMAN RD, Colusa, CA
Built 1982 Load: 49.9 t ADT: 15
ROUTE 5
FairOver: TUXFORD STREET
07-LA-005-34.65-LA, Los Angeles, CA
Built 1961 Load: 49.9 t ADT: 187,358
SANTA FE AVE
FairOver: COMPTON CRK
1.0MI N/O DEL AMO BLVD, Los Angeles, CA
Built 1950 Load: 49.9 t ADT: 18,631
CELTIC ST
FairOver: BULL CREEK
GOTHIC AVE & SWINTON AVE, Los Angeles, CA
Built 1976 Load: 49.9 t ADT: 600
147TH ST
FairOver: DOMINGUEZ CHAN
0.3MI W/O CRENSHAW BLVD, Los Angeles, CA
Built 1974 Load: 49.9 t ADT: 3,535
MARINA DR
FairOver: SAN GABRIEL RIV
0.6MI S/O 2ND ST, Los Angeles, CA
Built 2005 Load: 49.9 t ADT: 7,925
RD 24
FairOver: DRY CREEK
0.1 MI N AVE 18 1/2, Madera, CA
Built 1974 Load: 49.9 t ADT: 100
HUMBOLDT ROAD
FairOver: SOLDIERS MEADOW CREEK
5.0 MI W OF SH 89, Plumas, CA
Built 1970 Load: 49.9 t ADT: 40
HARRISON ST
FairOver: LOWEN DITCH
0.2 MI S/ 81 ST AVENUE, Riverside, CA
Built 1979 Load: 49.9 t ADT: 100
STATE ROUTE 16
FairOver: DEER CREEK
03-SAC-016-14.14, Sacramento, CA
Built 1948 Load: 49.9 t ADT: 11,050
ROUTE 40
FairOver: DEAN WASH
08-SBD-040-R1.60, San Bernardino, CA
Built 1964 Load: 49.9 t ADT: 19,500
INTERSTATE 5 NB
FairOver: CALIFORNIA AQUEDUCT
10-SJ-005-2.00, San Joaquin, CA
Built 1966 Load: 49.9 t ADT: 11,400
JACK TONE ROAD
FairOver: S FK S LITTLEJOHNS CREEK
1.7 MI S MARIPOSA RD, San Joaquin, CA
Built 1955 Load: 49.9 t ADT: 2,204
STATE ROUTE 36
FairOver: PALMER GULCH
02-TEH-036-53.25, Tehama, CA
Built 1961 Load: 49.9 t ADT: 2,025
LASPINA ST(RD 112)
FairOver: ELK BAYOU
NORTH OF D109A, Tulare, CA
Built 1984 Load: 49.9 t ADT: 300
STATE ROUTE 70 WB
FairOver: FEATHER RIVER
03-BUT-070-14.83-OVL, Butte, CA
Built 1963 Load: 50.2 t ADT: 10,050
STATE ROUTE 70 EB
FairOver: FEATHER RIVER
03-BUT-070-14.83-OVL, Butte, CA
Built 1963 Load: 50.2 t ADT: 10,050
CHICO RIV RD
FairOver: M & T CANAL
0.62 MI E OF RIVER ROAD, Butte, CA
Built 1979 Load: 50.2 t ADT: 1,285
E ANNADALE AVE
FairOver: BRANCH OF BYRD SLOUGH
AT MACDONOUGH AVE, Fresno, CA
Built 1973 Load: 50.2 t ADT: 2,900
BUTTONWILLOW DRIVE
FairOver: BUENA VISTA SLOUGH
0.6 MI S OF BRITE RD, Kern, CA
Built 1984 Load: 50.2 t ADT: 1,450
U.S. HIGHWAY 395
FairOver: EVANS CANYON RD
02-LAS-395-R0.10, Lassen, CA
Built 1976 Load: 50.2 t ADT: 4,600
STATE ROUTE 140
FairOver: BEAR CREEK
10-MPA-140-28.33, Mariposa, CA
Built 1957 Load: 50.2 t ADT: 2,125
STATE ROUTE 1
FairOver: BRUSH CREEK
01-MEN-001-20.83, Mendocino, CA
Built 1956 Load: 50.2 t ADT: 1,800
SR261 NB
FairOver: HANDY CREEK RD
12-ORA-261-5.62-TUS, Orange, CA
Built 1998 Load: 50.2 t ADT: 14,500
ALPINE MEADOWS RD
FairOver: BEAR CREEK
0.9 MI W OF SH 89, Placer, CA
Built 1970 Load: 50.2 t ADT: 1,819
SUNRISE WAY
FairOver: TAHQUITZ CREEK
0.4 MI. S/O RAMON ROAD, Riverside, CA
Built 1985 Load: 50.2 t ADT: 18,143
ELWYN ROAD
FairOver: NATOMAS E TRIBUTARY NO 1
0.4 MI N RIO LINDA BLVD, Sacramento, CA
Built 1984 Load: 50.2 t ADT: 1,000
STATE HIGHWAY 173
FairOver: CEDAR SPRINGS SPILLWAY
08-SBD-173-L1.92, San Bernardino, CA
Built 1970 Load: 50.2 t ADT: 1,150
N805-E54 CONNECTOR
FairOver: SWEETWATER RIVER
11-SD-805-8.65, San Diego, CA
Built 1975 Load: 50.2 t ADT: 11,000
SAN ANTONIO ROAD
FairOver: SAN ANTONIO CREEK
0.3 MI W OF SR 135, Santa Barbara, CA
Built 1989 Load: 50.2 t ADT: 760
FOOTHILL BLVD
FairOver: UP RR
0.05 MILES SOUTH OF I-280, Santa Clara, CA
Built 1967 Load: 50.2 t ADT: 25,190
MERIDIAN AVE
FairOver: GUADALUPE CREEK
AT COLEMAN RD, Santa Clara, CA
Built 1975 Load: 50.2 t ADT: 15,000
FORWARDS MILL ROAD
FairOver: N FORK DIGGER CREEK
ON TEHAMA/SHASTA CNTY LN, Tehama, CA
Built 1971 Load: 50.2 t ADT: 57
PEORIA RD
FairOver: DRY CREEK
1.7 MI N/O SR 20, Yuba, CA
Built 1980 Load: 50.2 t ADT: 650
Showing 16,501-16,550 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.