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
STATE ROUTE 126
FairOver: STECKEL BARRANCA
07-VEN-126-R10.89-SPA, Ventura, CA
Built 1965 Load: 32.4 t ADT: 37,500
STATE ROUTE 118
FairOver: TAPO STREET
07-VEN-118-R27.81-SIMV, Ventura, CA
Built 1968 Load: 32.4 t ADT: 152,000
STATE ROUTE 33
FairOver: CANADA LARGA
07-VEN-033-R4.30, Ventura, CA
Built 1970 Load: 32.4 t ADT: 20,000
STATE ROUTE 34
FairOver: UP RR, AMTRAK, METROLINK
07-VEN-034-R13.33-CMRL, Ventura, CA
Built 2011 Load: 32.4 t ADT: 10,700
U.S. HIGHWAY 101
FairOver: LAS SAUCES CRK
07-VEN-101-R39.52, Ventura, CA
Built 1973 Load: 32.4 t ADT: 76,000
HWY 101 & RAMPS
FairOver: CAMARILLO HILLS DRAIN
07-VEN-101-15.69-CMRL, Ventura, CA
Built 1975 Load: 32.4 t ADT: 144,000
OLD WALNUT ROAD
FairOver: LION CANYON CREEK
07-VEN-150-R23.14, Ventura, CA
Built 1983 Load: 32.4 t ADT: 50
STATE ROUTE 1
FairOver: REVOLON CHANNEL
07-VEN-001-10.00, Ventura, CA
Built 1985 Load: 32.4 t ADT: 4,300
STATE ROUTE 1
FairOver: REVOLON CHANNEL
07-VEN-001-10.00, Ventura, CA
Built 1985 Load: 32.4 t ADT: 4,300
STATE ROUTE 126
FairOver: SESPE RANCH UC #1
07-VEN-126-T16.69-SPA, Ventura, CA
Built 1991 Load: 32.4 t ADT: 37,500
STATE ROUTE 126
FairOver: SESPE RANCH UC #2
07-VEN-126-18.53-SPA, Ventura, CA
Built 1991 Load: 32.4 t ADT: 37,500
STATE ROUTE 23
FairOver: GRIMES CANYON CHANNEL
07-VEN-023-R21.41, Ventura, CA
Built 1991 Load: 32.4 t ADT: 7,650
US HIGHWAY 101 NB
FairOver: VICTORIA AVENUE
07-VEN-101-R24.65-VEN, Ventura, CA
Built 2000 Load: 32.4 t ADT: 65,000
OLD TELEGRAPH RD
FairOver: WEST BRANCH SESPE CREEK
1.1 MI N/W OF 'A' ST, Ventura, CA
Built 1983 Load: 32.4 t ADT: 3,700
OLD TELEGRAPH RD
FairOver: EAST BRANCH SESPE CREEK
1.0 MI N/W OF 'A' ST, Ventura, CA
Built 1983 Load: 32.4 t ADT: 3,700
CREEK RD
FairOver: SAN ANTONIO CREEK
W COUNTRY CLUB DR, Ventura, CA
Built 1981 Load: 32.4 t ADT: 2,800
WOOLEY ROAD
FairOver: EDISON CANAL
0.2 MI E OF HARBOR BLVD, Ventura, CA
Built 1985 Load: 32.4 t ADT: 11,400
HARBOR BLVD
FairOver: EDISON CANAL
0.8 MI N OF 5TH ST, Ventura, CA
Built 1989 Load: 32.4 t ADT: 17,530
ALAMO STREET
FairOver: TAPO CANYON CREEK
0.4 MI W TAPO CANYON RD, Ventura, CA
Built 1979 Load: 32.4 t ADT: 20,000
LAGUNA RD
FairOver: REVOLON SLOUGH
0.2 MI W OF WOOD ROAD, Ventura, CA
Built 1977 Load: 32.4 t ADT: 1,500
WOOD RD
FairOver: REVOLON SLOUGH
0.45 MI S OF LAGUNA RD., Ventura, CA
Built 1977 Load: 32.4 t ADT: 2,100
WHEELER CYN RD
FairOver: TODD BARRANCA
2.4 MI N OF FOOTHILL RD, Ventura, CA
Built 1969 Load: 32.4 t ADT: 300
GERALD DR
FairOver: NEWBURY PARK STORM DRAIN
0.1 MI W OF WENDY DR, Ventura, CA
Built 1962 Load: 32.4 t ADT: 900
CONIFER ST
FairOver: MEDEA CREEK
0.2 MI W KANAN RD, Ventura, CA
Built 1975 Load: 32.4 t ADT: 4,000
SANTA SUSANA RD
FairOver: UP RR, AMTRAK, METROLINK
0.3 MI S KATHERINE RD, Ventura, CA
Built 1974 Load: 32.4 t ADT: 6,600
MEYER RD
FairOver: COZY DELL CANYON
0.1 MI WEST RICE RD, Ventura, CA
Built 1989 Load: 32.4 t ADT: 200
MCANDREW RD
FairOver: REEVES CREEK
0.1 MI N REEVES RD, Ventura, CA
Built 1983 Load: 32.4 t ADT: 500
ORANGE RD
FairOver: GRIDLEY WASH
0.2 MI N OF GRAND AVE, Ventura, CA
Built 1974 Load: 32.4 t ADT: 200
ADOLFO RD
FairOver: CALLEGUAS CREEK
0.5 MI E LEWIS RD, Ventura, CA
Built 1982 Load: 32.4 t ADT: 15,000
WALNUT STREET
FairOver: TAPO CANYON CREEK
.2 MI W/O TAPO CANYON RD, Ventura, CA
Built 1979 Load: 32.4 t ADT: 2,000
TOWNSHIP AVE
FairOver: TAPO CANYON CREEK
0.2 MI W TAPO CANYON RD, Ventura, CA
Built 1979 Load: 32.4 t ADT: 2,000
AVENIDA SIMI
FairOver: TAPO CANYON CREEK
0.3 MI W TAPO CANYON RD, Ventura, CA
Built 1979 Load: 32.4 t ADT: 2,000
ROCKGATE PLACE
FairOver: TAPO CANYON CREEK
0.1 MI N AVENIDA SIMI, Ventura, CA
Built 1979 Load: 32.4 t ADT: 500
N. OAK HILLS DR
FairOver: MEDEA CREEK
0.1 MI W PARKVIEW DR., Ventura, CA
Built 1980 Load: 32.4 t ADT: 500
N. OAK HILLS DR
FairOver: MEDEA CREEK
@ CALLE RIO VISTA, Ventura, CA
Built 1980 Load: 32.4 t ADT: 500
PIRU CANYON RD
FairOver: PIRU CREEK
3.0 MI N CENTER ST, Ventura, CA
Built 1983 Load: 32.4 t ADT: 700
UPLAND RD
FairOver: CALLEGUAS CREEK
0.3 MI E. LEWIS RD, Ventura, CA
Built 1988 Load: 32.4 t ADT: 15,000
AVE. DE LA VEREDA
FairOver: THACHER CREEK
0.2 MI S STATE RTE 150, Ventura, CA
Built 1991 Load: 32.4 t ADT: 300
MCANDREW RD
FairOver: THACHER CREEK
0.9 MI N REEVES RD, Ventura, CA
Built 1991 Load: 32.4 t ADT: 500
SPRING RD.
FairOver: ARROYO LAS POSAS
.15 MI S NEW L.A. AVE, Ventura, CA
Built 1999 Load: 32.4 t ADT: 11,000
POTRERO ROAD
FairOver: POTRERO VALLEY CREEK
0.3 MI W OF WESTLAKE BLVD, Ventura, CA
Built 2001 Load: 32.4 t ADT: 6,700
PLEASANT VALLEY RD
FairOver: CALLEGUAS CREEK
1 MI SW O RTE 101, Ventura, CA
Built 2007 Load: 32.4 t ADT: 17,000
UNIVERSITY DRIVE
FairOver: CALLEGUAS CREEK
AT LEWIS RD, Ventura, CA
Built 2007 Load: 32.4 t ADT: 800
RORY LANE
FairOver: ARROYO SIMI
0.15 MI S/LOS ANGELES AVE, Ventura, CA
Built 1970 Load: 32.4 t ADT: 100
YOSEMITE AVENUE
FairOver: ARROYO SIMI
0.3 M S/ O LOS ANGELES AV, Ventura, CA
Built 2010 Load: 32.4 t ADT: 3,200
STOW AVENUE
FairOver: ARROYO SIMI
0.3 MI S LOS ANGELES ST., Ventura, CA
Built 2009 Load: 32.4 t ADT: 2,100
E. DAILY DR.
FairOver: CAMARILLO HILLS DRAIN
0.3 MI E/O LAS POSAS RD., Ventura, CA
Built 1975 Load: 32.4 t ADT: 7,500
CAMARILLO ST
FairOver: CALLEGUAS CREEK
0.3 MI SE OF LEWIS RD, Ventura, CA
Built 1962 Load: 32.4 t ADT: 4,000
INTERSTATE 505
FairOver: HUNGRY HOLLOW WTRSHD CH
03-YOL-505-13.40, Yolo, CA
Built 1959 Load: 32.4 t ADT: 12,000
INTERSTATE 505
FairOver: DRY SLOUGH
03-YOL-505-1.18, Yolo, CA
Built 1959 Load: 32.4 t ADT: 14,000
Showing 14,651-14,700 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.