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
VENICE BLVD
FairOver: GRAND CANAL
0.2 KM EAST OF PACIFIC, Los Angeles, CA
Built 1991 Load: 46.0 t ADT: 9,221
INTERSTATE 80 EB
FairOver: TRUCKEE RIVER
03-NEV-080-28.00, Nevada, CA
Built 1959 Load: 46.0 t ADT: 13,500
NORTH MALL WAY
FairOver: LYTLE CREEK-EAST BRANCH
0.1 MI W OF E STREET, San Bernardino, CA
Built 1973 Load: 46.0 t ADT: 5,100
AIRPORT WAY
FairOver: SAN JOAQUIN RIVER 06
0.5 MI NE OF KASSON RD, San Joaquin, CA
Built 1965 Load: 46.0 t ADT: 2,042
STATE ROUTE 166
FairOver: GIFFORD CREEK
05-SLO-166-40.11, San Luis Obispo, CA
Built 2013 Load: 46.0 t ADT: 2,900
U.S. HIGHWAY 101
FairOver: UP RR SPUR
04-SM-101-5.50-RDWC, San Mateo, CA
Built 1958 Load: 46.0 t ADT: 195,000
STATE ROUTE 85
FairOver: CALABAZAS CREEK
04-SCL-085-R15.40-SJS, Santa Clara, CA
Built 1993 Load: 46.0 t ADT: 50,000
STATE ROUTE 85
FairOver: CALABAZAS CREEK
04-SCL-085-R15.40-SJS, Santa Clara, CA
Built 1993 Load: 46.0 t ADT: 50,000
GRAYSTONE LANE
FairOver: ALAMITOS CREEK
0.01 MI E CAMDEN AVE, Santa Clara, CA
Built 1981 Load: 46.0 t ADT: 2,500
STATE ROUTE 3
FairOver: SOUTH FORK SCOTT RIVER
02-SIS-003-8.89, Siskiyou, CA
Built 1958 Load: 46.0 t ADT: 345
GAZELLE-CALLAHAN R
FairOver: NOYES VALLEY CREEK
0.1 MI N MASTERSON RD, Siskiyou, CA
Built 1972 Load: 46.0 t ADT: 287
SR 12
FairOver: SANTA ROSA CREEK
04-SON-012-21.45, Sonoma, CA
Built 1974 Load: 46.0 t ADT: 41,250
WEST FIFTH ST
FairOver: EDISON CHANNEL
0.4 MI E HARBOR BLVD, Ventura, CA
Built 1958 Load: 46.0 t ADT: 6,200
MIDWAY RD
FairOver: WESTERN CANAL
0.2 MI N NELSON SHIPPEE R, Butte, CA
Built 1983 Load: 46.3 t ADT: 1,371
ORD FERRY RD
FairOver: W BRANCH EDGAR SLOUGH
3.7 MI E/O GLENN CO LINE, Butte, CA
Built 1976 Load: 46.3 t ADT: 3,454
W SIERRA AVE
FairOver: CCID MAIN CANAL
0.75 MI NE OF SR 33, Fresno, CA
Built 1987 Load: 46.3 t ADT: 225
US HIGHWAY 101 SB
FairOver: SCENIC WAY
01-HUM-101-R53.38-RDEL, Humboldt, CA
Built 1976 Load: 46.3 t ADT: 4,400
GLADSTONE ST
FairOver: SAN DIMAS WASH
1.5MI E/O GRAND AVE, Los Angeles, CA
Built 1967 Load: 46.3 t ADT: 16,295
BUCK MEADOWS ROAD
FairOver: JORDAN CREEK
.1 MI N/O GREELEY HILL RD, Mariposa, CA
Built 1961 Load: 46.3 t ADT: 610
LONE TREE ROAD
FairOver: DEADMAN CREEK
0.7 MI N SANDY MUSH ROAD, Merced, CA
Built 1965 Load: 46.3 t ADT: 175
BECKWRTH-GEHN RD
FairOver: INDIAN CREEK
400 FT S OF INDIAN CR RD, Plumas, CA
Built 1956 Load: 46.3 t ADT: 10
60TH STREET
FairOver: SAN SEVAINE CHANNEL
100' E/O BAIN STREET, Riverside, CA
Built 1988 Load: 46.3 t ADT: 1,483
INTERSTATE 5 SB
FairOver: STONE LAKE CREEK
03-SAC-005-8.11, Sacramento, CA
Built 1975 Load: 46.3 t ADT: 27,000
STATE ROUTE 132 W
FairOver: CALIFORNIA AQUEDUCT
10-SJ-132-0.81, San Joaquin, CA
Built 1966 Load: 46.3 t ADT: 7,750
STATE ROUTE 132 E
FairOver: CALIFORNIA AQUEDUCT
10-SJ-132-0.81, San Joaquin, CA
Built 1966 Load: 46.3 t ADT: 7,750
FRENCH CREEK RD
FairOver: FRENCH CREEK
5.2 MI S OF S.H. 3, Siskiyou, CA
Built 1990 Load: 46.3 t ADT: 20
N580-BRUCE ST OFF
FairOver: 14TH AVENUE (OFF-RAMP)
04-ALA-580-R42.07-OAK, Alameda, CA
Built 1963 Load: 46.7 t ADT: 10,800
KURT DRIVE
FairOver: ANGELS CREEK
JCT SR 4 ANGELES CAMP, Calaveras, CA
Built 1983 Load: 46.7 t ADT: 650
STATE ROUTE 86 NB
FairOver: TULE WASH
11-IMP-086-53.07, Imperial, CA
Built 1977 Load: 46.7 t ADT: 5,600
GLENDORA AVE
FairOver: BIG DALTON WASH
0.5MI S/O ALOSTA AVE, Los Angeles, CA
Built 1960 Load: 46.7 t ADT: 18,334
FULLERTON RD
FairOver: SAN JOSE CRK
0.1MI S/O VALLEY BLVD, Los Angeles, CA
Built 1991 Load: 46.7 t ADT: 9,719
25TH ST W
FairOver: AMARGOSA CRK
250FT N/O ELIZ LAKE RD, Los Angeles, CA
Built 2000 Load: 46.7 t ADT: 13,260
RANCHO CALIF ROAD
FairOver: MURRIETA CREEK
0.2 MI. W/O RTE. I-15 FWY, Riverside, CA
Built 1970 Load: 46.7 t ADT: 37,000
SOUTH MALL WAY
FairOver: LYTLE CREEK-EAST BRANCH
0.1 MI W OF 'E' ST, San Bernardino, CA
Built 1973 Load: 46.7 t ADT: 5,100
INTERSTATE RTE 5 S
FairOver: GAFFERY ROAD
10-SJ-005-0.30L, San Joaquin, CA
Built 1971 Load: 46.7 t ADT: 10,800
SB STATE ROUTE 85
FairOver: SARATOGA CREEK
04-SCL-085-R13.91-SAR, Santa Clara, CA
Built 1994 Load: 46.7 t ADT: 50,000
CECILVILLE ROAD
FairOver: MCNEAL CREEK
1 MI S/O SALMON RIVER RD, Siskiyou, CA
Built 1937 Load: 46.7 t ADT: 101
STATE ROUTE 118 WB
FairOver: SEQUOIA AVE
07-VEN-118-R26.56-SIMV, Ventura, CA
Built 1969 Load: 46.7 t ADT: 70,000
STATE ROUTE 118 EB
FairOver: SEQUOIA AVE
07-VEN-118-R26.56-SIMV, Ventura, CA
Built 1969 Load: 46.7 t ADT: 70,000
STATE ROUTE 118
FairOver: GALENA AVE
07-VEN-118-R26.28-SIMV, Ventura, CA
Built 1969 Load: 46.7 t ADT: 70,000
STATE ROUTE 118
FairOver: GALENA AVE
07-VEN-118-R26.28-SIMV, Ventura, CA
Built 1969 Load: 46.7 t ADT: 70,000
URSY AVE
FairOver: ALTA MAIN CANAL
AT CENTRAL AVE, Fresno, CA
Built 1981 Load: 47.0 t ADT: 200
STATE ROUTE 86 NB
FairOver: ALFALFA DITCH
11-IMP-086-R40.04, Imperial, CA
Built 1976 Load: 47.0 t ADT: 6,150
ALONDRA BLVD
FairOver: SAN GABRIEL RIV
0.3MI W/O I-605 FWY, Los Angeles, CA
Built 1952 Load: 47.0 t ADT: 27,192
VANOWEN ST
FairOver: S FORK BELL CREEK
0.2 M E/O PLATT AVE, Los Angeles, CA
Built 1958 Load: 47.0 t ADT: 34,709
WENTWORTH ST
FairOver: PACOIMA DIVERSION CHNL
0.2 MI SW ARLETA AVE, Los Angeles, CA
Built 1955 Load: 47.0 t ADT: 3,100
KNOXV-BERRYESSA RD
FairOver: PUTAH CRK(LK BERRYESSA)
1 MI N/O POPE CANYON RD, Napa, CA
Built 1957 Load: 47.0 t ADT: 530
INTERSTATE 80
FairOver: MYSTIC ROAD
03-NEV-080-29.49, Nevada, CA
Built 1958 Load: 47.0 t ADT: 27,000
BROOK ROAD
FairOver: UP RR, BNSF RY, & AMTRAK
100 FT WEST, Placer, CA
Built 1950 Load: 47.0 t ADT: 785
STATE ROUTE 18
FairOver: BNSF RY,UP,AMTRAK,MOJAVE
08-SBD-018-95.35, San Bernardino, CA
Built 1962 Load: 47.0 t ADT: 42,000
Showing 16,351-16,400 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.