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
WILLOW CREEK ROAD
FairOver: WILLOW CREEK
2.4 MI E/O RTE 1, Sonoma, CA
Built 1975 Load: 36.6 t ADT: 120
STWRT PT-SKGG SPRG
FairOver: HILLSIDE
8.5 MI E/O SR 1, Sonoma, CA
Built 2011 Load: 36.6 t ADT: 300
CAZADERO HWY
FairOver: HILLSIDE
3.6 MI N/O SR 116, Sonoma, CA
Built 2011 Load: 36.6 t ADT: 1,450
INTERSTATE 5 SB
FairOver: KERN CREEK RD (PRIVATE)
10-STA-005-20.69, Stanislaus, CA
Built 1967 Load: 36.6 t ADT: 20,500
INTERSTATE 5 NB
FairOver: KERN CREEK RD (PRIVATE)
10-STA-005-20.68, Stanislaus, CA
Built 1967 Load: 36.6 t ADT: 20,500
SWANSON ROAD
FairOver: T.I.D. CERES MAIN CANAL
1.0 MI N WHITMORE RD, Stanislaus, CA
Built 1945 Load: 36.6 t ADT: 250
ROAD 224(WESTWOOD)
FairOver: TULE RIVER
0.6 MI N OF SR 190, Tulare, CA
Built 1972 Load: 36.6 t ADT: 5,900
RD 160
FairOver: DEER CREEK
0.9 MI S OF AVE 88, Tulare, CA
Built 1961 Load: 36.6 t ADT: 75
COUNTY ROAD 98
FairOver: WILLOW SLOUGH
1.3 MI N OF CO ROAD #29, Yolo, CA
Built 1959 Load: 36.6 t ADT: 6,160
INTERSTATE 580
FairOver: 106TH AVE
04-ALA-580-R35.71-OAK, Alameda, CA
Built 1965 Load: 36.9 t ADT: 140,000
S101-CHAPMAN ST RP
FairOver: HOPPOW CREEK
01-DN-101-R4.76, Del Norte, CA
Built 1965 Load: 36.9 t ADT: 320
US HIGHWAY 199 NB
FairOver: HILLSIDE ABOVE RIVER
01-DN-199-R17.46, Del Norte, CA
Built 1976 Load: 36.9 t ADT: 3,100
INTERSTATE 5
FairOver: SOUTH FORK WILLOW CREEK
03-GLE-005-R12.39, Glenn, CA
Built 1966 Load: 36.9 t ADT: 12,750
INTERSTATE 5
FairOver: SOUTH FORK WILLOW CREEK
03-GLE-005-R12.39, Glenn, CA
Built 1966 Load: 36.9 t ADT: 12,750
INTERSTATE 8 WB
FairOver: WESTSIDE MAIN CANAL
11-IMP-008-R25.11, Imperial, CA
Built 1968 Load: 36.9 t ADT: 6,100
JASPER RD
FairOver: ASH CANAL
25 FT E/O ANDERHOLT RD, Imperial, CA
Built 1975 Load: 36.9 t ADT: 50
STATE ROUTE 168
FairOver: SOUTH FORK BISHOP CREEK
09-INY-168-15.79-BIS, Inyo, CA
Built 1982 Load: 36.9 t ADT: 8,000
FREMONT AVE
FairOver: SOUTH FORK KINGS RIVER
0.3 MI W OF 19TH AVE, Kings, CA
Built 1976 Load: 36.9 t ADT: 600
STATE ROUTE 29
FairOver: MARTIN STREET
01-LAK-029-R42.00, Lake, CA
Built 1972 Load: 36.9 t ADT: 6,725
E END AVE
FairOver: SAN ANTONIO WASH
0.5MI S/O MISSION BLVD, Los Angeles, CA
Built 1962 Load: 36.9 t ADT: 7,733
VICTORIA AVE
FairOver: LEFFINGWELL CRK
0.3MI N/O TELEGRAPH RD, Los Angeles, CA
Built 1969 Load: 36.9 t ADT: 3,636
ASHBY ROAD
FairOver: BLACK RASCAL CREEK
0.3 MI S BEACHWOOD RD, Merced, CA
Built 1962 Load: 36.9 t ADT: 3,063
COMSTOCK DRIVE
FairOver: DRAINAGE DITCH
SOUTH OF GRANITE DRIVE, Nevada, CA
Built 2003 Load: 36.9 t ADT: 2,000
STATE ROUTE 51
FairOver: AMERICAN RIVER
03-SAC-051-2.61-SAC, Sacramento, CA
Built 1954 Load: 36.9 t ADT: 160,000
ELK GROVE BLVD
FairOver: UP RR AND BNSF RY
0.25 MI W OF FRANKLIN BL, Sacramento, CA
Built 2002 Load: 36.9 t ADT: 10,100
INTERSTATE 10 WB
FairOver: BNSF RY & METROLINK
08-SBD-010-R22.38-COL, San Bernardino, CA
Built 1956 Load: 36.9 t ADT: 102,000
INTERSTATE 15 NB
FairOver: CLEGHORN CREEK
08-SBD-015-R18.48, San Bernardino, CA
Built 1969 Load: 36.9 t ADT: 90,500
STATE ROUTE 210 EB
FairOver: GOLDEN AVENUE
08-SBD-210-R25.21-SBD, San Bernardino, CA
Built 1971 Load: 36.9 t ADT: 69,000
PHILADELPHIA AVE
FairOver: SAN ANTONIO CHANNEL
0.15 MI W OF EAST END ST, San Bernardino, CA
Built 1958 Load: 36.9 t ADT: 12,170
INTERSTATE 8 WB
FairOver: KITCHEN CREEK
11-SD-008-R50.64, San Diego, CA
Built 1974 Load: 36.9 t ADT: 8,000
INTERSTATE 8 EB
FairOver: KITCHEN CREEK
11-SD-008-R50.64, San Diego, CA
Built 1974 Load: 36.9 t ADT: 8,000
E MISSION BAY DR
FairOver: TECOLOTE CREEK
0.3MI N/O SEA WORLD DR, San Diego, CA
Built 1967 Load: 36.9 t ADT: 5,389
STATE ROUTE 99 NB
FairOver: CALAVERAS RIVER
10-SJ-099-21.79, San Joaquin, CA
Built 1949 Load: 36.9 t ADT: 35,500
BRANDY CITY ROAD
FairOver: FIDDLE CREEK
0.4 MI NORTH OF ROUTE 49, Sierra, CA
Built 1959 Load: 36.9 t ADT: 150
STATE ROUTE 96
FairOver: KLAMATH RIVER
02-SIS-096-77.15, Siskiyou, CA
Built 1953 Load: 36.9 t ADT: 650
INTERSTATE 5
FairOver: PARKS CREEK
02-SIS-005-R27.18, Siskiyou, CA
Built 1969 Load: 36.9 t ADT: 7,400
WYEHKA WAY
FairOver: WAGON CREEK
0.1 MI W OLD STAGE RD, Siskiyou, CA
Built 1968 Load: 36.9 t ADT: 143
ELY RD
FairOver: WILLOW BROOK
0.1 MI SE OLD RDWD HWY N, Sonoma, CA
Built 1959 Load: 36.9 t ADT: 3,500
PEPPER RD
FairOver: STEMPLE CREEK
1.2 MI N OF BODEGA AVE, Sonoma, CA
Built 1968 Load: 36.9 t ADT: 3,500
RAINSVILLE ROAD
FairOver: WILLOW BRK (PETALUMA RV)
0.1 MI SW STONY POINT RD, Sonoma, CA
Built 1960 Load: 36.9 t ADT: 3,200
MONTE VISTA TER
FairOver: HILLSIDE
IN MONTE RIO, Sonoma, CA
Built 1960 Load: 36.9 t ADT: 200
INGRAM CREEK RD-N5
FairOver: INGRAM CREEK
10-STA-005-23.07, Stanislaus, CA
Built 1967 Load: 36.9 t ADT: 1,600
ON ROAD 'HH'
FairOver: GAY CREEK
0.25 MI N GLENN CO LINE, Tehama, CA
Built 1966 Load: 36.9 t ADT: 21
INTERSTATE 5 SB
FairOver: CFNR
03-YOL-005-R8.87, Yolo, CA
Built 1970 Load: 36.9 t ADT: 11,750
INTERSTATE 5 NB
FairOver: CFNR
03-YOL-005-R8.89, Yolo, CA
Built 1973 Load: 36.9 t ADT: 11,750
VALLEY LOOP ROAD
FairOver: MERCED RIVER
7.9 miles east from El Po, Mariposa, CA
Built 1928 Load: 37.2 t ADT: 3,425
WARD ROAD
FairOver: CHOLLAS CREEK
BETWEEN GATES #2 AND #3, San Diego, CA
Built 1971 Load: 37.2 t ADT: 3,300
BENEDICT DRIVE
FairOver: SAN LEANDRO CREEK
N/O LAKE CHABOT RD, Alameda, CA
Built 1964 Load: 37.3 t ADT: 4,110
S CAMDEN AVE
FairOver: MURPHY SLOUGH
1.9 MI N OF MT WHITNEY AV, Fresno, CA
Built 1964 Load: 37.3 t ADT: 450
E SOUTH AVE
FairOver: TRAVERS CREEK
0.33 MI WEST OF ALTA AVE, Fresno, CA
Built 1925 Load: 37.3 t ADT: 1,200
Showing 15,451-15,500 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.