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
RAMP/CONNECTOR 505
FairOver: LONG CREEK
03-YOL-505-13.65, Yolo, CA
Built 1955 Load: 54.8 t ADT: 10,000
CARTER RD
FairOver: WESTSIDE MAIN CANAL
70 FT S/O WEBSTER RD, Imperial, CA
Built 1974 Load: 55.1 t ADT: 800
INTERSTATE 5 SB
FairOver: COTTONWOOD CREEK
02-SIS-005-R63.77L, Siskiyou, CA
Built 1974 Load: 55.1 t ADT: 7,300
COUNTY ROAD 99
FairOver: WILLOW SLOUGH
1 MI N C.R. #29, Yolo, CA
Built 1975 Load: 55.1 t ADT: 2,830
ALGODON RD
FairOver: ALGODON SLOUGH
0.1 MI WEST OF S.R. 70, Yuba, CA
Built 1979 Load: 55.1 t ADT: 2,500
JASPER LN
FairOver: BEST SLOUGH
3.1 MI N/O SPENCEVILLE RD, Yuba, CA
Built 1979 Load: 55.1 t ADT: 570
INTERSTATE 5
FairOver: EUCLID AVE
07-LA-005-16.05-LA, Los Angeles, CA
Built 1948 Load: 55.3 t ADT: 258,000
I-5 SB
FairOver: HOLLENBECK LAKE,BOYLE AV
07-LA-005-17.21-LA, Los Angeles, CA
Built 1961 Load: 55.3 t ADT: 117,000
BRIDGE ST
FairOver: SACRAMENTO RIVER
BETWEEN MAIN ST/RIV RD, Colusa, CA
Built 1980 Load: 55.4 t ADT: 2,006
STATE ROUTE 86 NB
FairOver: LUPIN WASH
11-IMP-086-50.84, Imperial, CA
Built 1977 Load: 55.4 t ADT: 5,600
HUFF ROAD
FairOver: SALT CREEK
3.7 MI N/O EVAN HEWES HWY, Imperial, CA
Built 1986 Load: 55.4 t ADT: 1,600
SECOND AVE
FairOver: SANTA ANITA WASH
AT COLORADO BLVD, Los Angeles, CA
Built 1968 Load: 55.4 t ADT: 8,446
PEARBLOSSOM HWY
FairOver: CALIFORNIA AQUEDUCT
1.0MI N/O SIERRA HWY, Los Angeles, CA
Built 1968 Load: 55.4 t ADT: 40,280
INTERSTATE 10 EB
FairOver: ARZC RR & MAIN STREET
08-RIV-010-R152.43-BLY, Riverside, CA
Built 1972 Load: 55.4 t ADT: 26,000
CURLY JACK ROAD
FairOver: ELK CREEK
0.8 MI S OF ELK CREEK RD, Siskiyou, CA
Built 1975 Load: 55.4 t ADT: 624
HOOKER CREEK ROAD
FairOver: UNNAMED CREEK
0.9 MI S BOWMAN RD, Tehama, CA
Built 1984 Load: 55.4 t ADT: 2,234
US HIGHWAY 101
FairOver: STAFFORD ROAD
01-HUM-101-R47.95, Humboldt, CA
Built 1971 Load: 55.7 t ADT: 7,500
BROCKMAN RD
FairOver: NEW RIVER
1.0 MI S/O MCCABE RD, Imperial, CA
Built 1975 Load: 55.7 t ADT: 1,000
MILL CREEK DRIVE
FairOver: CANADA CHANNEL
0.2 MI S LAKE FOREST DR, Orange, CA
Built 1980 Load: 55.7 t ADT: 2,000
N15-W10 CONNECTOR
FairOver: UP RR & AMTRAK
08-SBD-015-2.15-ONT, San Bernardino, CA
Built 1978 Load: 55.7 t ADT: 27,000
INTERSTATE 15 NB
FairOver: ABANDONED RR (BIKEPATH)
08-SBD-015-7.08-FNA, San Bernardino, CA
Built 1976 Load: 55.7 t ADT: 80,000
ORANGE ST
FairOver: WOODBRIDGE ID MAIN CANAL
0.05 MI S OF INDIANA ST, San Joaquin, CA
Built 1980 Load: 55.7 t ADT: 95
BLOSSOM HILL RD
FairOver: LOS GATOS CREEK
NEAR SH 17, Santa Clara, CA
Built 1964 Load: 55.7 t ADT: 22,000
STATE ROUTE 118
FairOver: DRY CANYON CHANNEL
07-VEN-118-R25.08-SIMV, Ventura, CA
Built 1970 Load: 55.7 t ADT: 65,000
C.R. 99
FairOver: DRY SLOUGH
0.34 MI N OF C.R.29, Yolo, CA
Built 1975 Load: 55.7 t ADT: 2,830
COLLEGE CITY RD
FairOver: SOUTH FORK BRUSH CREEK
1.2 MI N OF WHITE RD, Colusa, CA
Built 1972 Load: 56.1 t ADT: 402
U.S. HIGHWAY 101
FairOver: BENBOW DR (OLD US 101)
01-HUM-101-R7.77, Humboldt, CA
Built 1975 Load: 56.1 t ADT: 5,700
STATE ROUTE 178
FairOver: KERN RIVER
06-KER-178-R41.16, Kern, CA
Built 1971 Load: 56.1 t ADT: 4,200
MAPES LANE RD 305
FairOver: SUSAN RIVER OVERFLOW #4
1.3 MI E OF RD 304, Lassen, CA
Built 2000 Load: 56.1 t ADT: 100
U.S. HIGHWAY 101
FairOver: NORMANDIE AVE
07-LA-101-4.99-LA, Los Angeles, CA
Built 1950 Load: 56.1 t ADT: 175,000
118TH ST
FairOver: COMPTON CRK
0.1MI E/O CENTRAL AVE, Los Angeles, CA
Built 1984 Load: 56.1 t ADT: 2,263
DE SOTO AVE
FairOver: BROWNS CANYON WASH
0.3 MI S PARTHENIA ST, Los Angeles, CA
Built 1972 Load: 56.1 t ADT: 53,273
THOUSAND OAKS BL
FairOver: MEDEA CRK
0.1MI W/O KANAN RD, Los Angeles, CA
Built 1982 Load: 56.1 t ADT: 14,163
STATE ROUTE 1
FairOver: SYCAMORE DRAW
05-MON-001-39.28, Monterey, CA
Built 1981 Load: 56.1 t ADT: 5,000
FOXEN CANYON ROAD
FairOver: CAT CANYON CREEK
0.15 MI E PALMER RD, Santa Barbara, CA
Built 1988 Load: 56.1 t ADT: 1,365
S FAIRFAX AVE
FairOver: PANOCHE CREEK
2.7 MI S/O BELMONT AVE, Fresno, CA
Built 1975 Load: 56.4 t ADT: 700
LA BRUCHERIE RD
FairOver: NEW RIVER
0.6 MI N/O KUBLER RD, Imperial, CA
Built 1973 Load: 56.4 t ADT: 800
LA BRUCHERIE RD
FairOver: CENTRAL MAIN CANAL
2.9 MI S/O MCCABE RD, Imperial, CA
Built 1973 Load: 56.4 t ADT: 800
SUNFLOWER AVE
FairOver: SAN DIMAS WASH
100FT N/O GLADSTONE ST, Los Angeles, CA
Built 1969 Load: 56.4 t ADT: 14,759
FOURTH ST
FairOver: UPRR
50FT S/O MISSION RD, Los Angeles, CA
Built 1979 Load: 56.4 t ADT: 5,050
U.S. HIGHWAY 395
FairOver: NORTH FORK PIT RIVER
02-MOD-395-26.23, Modoc, CA
Built 1982 Load: 56.4 t ADT: 4,000
NORTH ACCESS RD
FairOver: SAN BRUNO CHANNEL
EAST OF AIRPORT BLVD, San Mateo, CA
Built 1986 Load: 56.4 t ADT: 9,494
FRANKENHEIMER ROAD
FairOver: S SAN JOAQUIN MAIN CANAL
2.5 MI S OF SONORA RD, Stanislaus, CA
Built 1983 Load: 56.4 t ADT: 55
STATE ROUTE 190
FairOver: SOUTH FORK TULE RIVER
06-TUL-190-23.86, Tulare, CA
Built 1958 Load: 56.4 t ADT: 5,600
COUNTY ROAD #105
FairOver: WILLOW SLOUGH BYPASS
JUST NORTH OF C.R. # 29, Yolo, CA
Built 1976 Load: 56.4 t ADT: 700
S HOWARD AVE
FairOver: STINSON CANAL
0.4 MI N OF CERINI AVE, Fresno, CA
Built 1925 Load: 56.7 t ADT: 200
INTERSTATE 210
FairOver: FIRST STREET
07-LA-210-R39.36-AZU, Los Angeles, CA
Built 1968 Load: 56.7 t ADT: 250,000
ALISO CYN RD
FairOver: ALISO CYN CRK
2.1MI W/O ANGLS FOR HWY, Los Angeles, CA
Built 2000 Load: 56.7 t ADT: 1,273
OCEANVIEW BLVD
FairOver: SO. BRANCH CHOLLAS CREEK
0.25 MI E/O 40TH ST, San Diego, CA
Built 1982 Load: 56.7 t ADT: 10,300
YERVA BUENA AVE
FairOver: THOMPSON CREEK
S/O SAN FELIPE RD, Santa Clara, CA
Built 1991 Load: 56.7 t ADT: 1,160
Showing 16,701-16,750 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.