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
E/B LA PAZ ROAD
FairOver: OSO CREEK
0.2 MI E/O MARGUERITE PKW, Orange, CA
Built 1979 Load: 29.2 t ADT: 14,140
INTERSTATE 10 WB
FairOver: DESPERATION ARROYO
08-RIV-010-R77.09, Riverside, CA
Built 1965 Load: 29.2 t ADT: 9,150
STATE ROUTE 99 NB
FairOver: COSUMNES RIVER OVERFLOW
03-SAC-099-7.45, Sacramento, CA
Built 1957 Load: 29.2 t ADT: 31,500
DRY CREEK RD
FairOver: SOUTH CHANNEL DRY CREEK
0.25 MI N ELKHORN BL, Sacramento, CA
Built 1965 Load: 29.2 t ADT: 6,200
HOME AV-W94 ONRAMP
FairOver: CHOLLAS CREEK
11-SD-094-3.54-SD, San Diego, CA
Built 1957 Load: 29.2 t ADT: 7,300
INTERSTATE 905 WB
FairOver: MTDB LRT & SDIV RR
11-SD-905-3.72-SD, San Diego, CA
Built 1976 Load: 29.2 t ADT: 19,500
INTERSTATE 905 WB
FairOver: HOWARD LANE
11-SD-905-3.62-SD, San Diego, CA
Built 1976 Load: 29.2 t ADT: 19,500
W120-S5 CONNECTOR
FairOver: SAN JOAQUIN RIVER 03
10-SJ-005-R14.16, San Joaquin, CA
Built 1947 Load: 29.2 t ADT: 37,500
INTERSTATE 205
FairOver: SUGAR SPUR RR
10-SJ-205-R7.85-TRA, San Joaquin, CA
Built 1970 Load: 29.2 t ADT: 47,500
STENNER CREEK RD
FairOver: STENNER CREEK
1.25 MI N SR 1, San Luis Obispo, CA
Built 1970 Load: 29.2 t ADT: 150
CENTRE STREET
FairOver: SAN JUAN CREEK
160 FT E/O 5TH STREET, San Luis Obispo, CA
Built 1941 Load: 29.2 t ADT: 750
ARRELLAGA STREET
FairOver: MISSION CREEK
AT CASTILLO ST, Santa Barbara, CA
Built 1963 Load: 29.2 t ADT: 9,580
SAN FERNANDO ST WB
FairOver: GUADALUPE RIVER
PARK AVE & SANTA CLARA ST, Santa Clara, CA
Built 1988 Load: 29.2 t ADT: 4,150
REDWOOD RETREAT RD
FairOver: LITTLE ARTHUR CREEK
2.9 MI W WATSONVILLE RD, Santa Clara, CA
Built 1925 Load: 29.2 t ADT: 400
STATE ROUTE 273
FairOver: SACRAMENTO RIVER
02-SHA-273-17.08-RDG, Shasta, CA
Built 1935 Load: 29.2 t ADT: 18,750
INTERSTATE 5 SB
FairOver: POWER LINE ROAD
02-SHA-005-R30.23L, Shasta, CA
Built 1968 Load: 29.2 t ADT: 9,150
FREEMAN WAY
FairOver: CLOVER CREEK
0.1 MI E GOODWATER RD, Shasta, CA
Built 1970 Load: 29.2 t ADT: 500
SUNNY HILL ROAD
FairOver: DUCKET CREEK
0.2 MI N RAINBOW LAKE RD, Shasta, CA
Built 1935 Load: 29.2 t ADT: 50
STATE ROUTE 96
FairOver: OAK FLAT CREEK
02-SIS-096-34.35, Siskiyou, CA
Built 1952 Load: 29.2 t ADT: 400
INTERSTATE 5 NB
FairOver: SHASTA RIVER
02-SIS-005-R51.16, Siskiyou, CA
Built 1970 Load: 29.2 t ADT: 7,050
CECILVILLE ROAD
FairOver: BLACK BEAR CREEK
10.1 MI N/W CECILVILLE, Siskiyou, CA
Built 1940 Load: 29.2 t ADT: 101
FOX ROAD
FairOver: GIBSON CANYON CREEK
2 MI N OF HAWKINS RD, Solano, CA
Built 1960 Load: 29.2 t ADT: 57
MADRONE RD
FairOver: SONOMA CREEK
0.3 MI E OF ARNOLD DR, Sonoma, CA
Built 1956 Load: 29.2 t ADT: 5,000
TODD RD
FairOver: COLGAN CREEK FLOOD CONT
0.1 MI W/O STONY PT. RD., Sonoma, CA
Built 1970 Load: 29.2 t ADT: 4,100
WESTSIDE ROAD
FairOver: HILLSIDE
0.3 MI N/O RIVER RD, Sonoma, CA
Built 1987 Load: 29.2 t ADT: 300
STATE ROUTE 108
FairOver: M.I.D. MAIN CANAL
10-STA-108-30.50, Stanislaus, CA
Built 1915 Load: 29.2 t ADT: 20,200
CLARIBEL ROAD
FairOver: M.I.D. MAIN CANAL
0.1 MI W/O TERMINAL AVE, Stanislaus, CA
Built 1958 Load: 29.2 t ADT: 10,140
STATE ROUTE 99
FairOver: SALT CREEK OVERFLOW
02-TEH-099-24.66, Tehama, CA
Built 1947 Load: 29.2 t ADT: 11,000
AVENUE 288
FairOver: TULARE IRRIG DIST CANAL
0.2 MI E OF RD 156, Tulare, CA
Built 1947 Load: 29.2 t ADT: 1,800
RD 152
FairOver: OAKES DITCH
0.4 MI N OF SR 198, Tulare, CA
Built 1949 Load: 29.2 t ADT: 450
LOS ANGELES AVE
FairOver: ARROYO SIMI
0.1 MI W OF FIRST STREET, Ventura, CA
Built 1956 Load: 29.2 t ADT: 29,000
MEEKLAND AVE
FairOver: SAN LORENZO CREEK
0.05 MI S OF LEWELLING BL, Alameda, CA
Built 1927 Load: 29.5 t ADT: 11,800
STATE ROUTE 99
FairOver: WESTERN CANAL
03-BUT-099-14.03, Butte, CA
Built 1952 Load: 29.5 t ADT: 10,000
LODOGA-STONYFRD RD
FairOver: STONY CREEK
IN STONYFORD, Colusa, CA
Built 1958 Load: 29.5 t ADT: 342
I 580 EB
FairOver: SCOFIELD AVENUE
04-CC-580-5.83-RCH, Contra Costa, CA
Built 1956 Load: 29.5 t ADT: 34,000
CANAL RD
FairOver: CONTRA COSTA CANAL
0.15 MI NW BAILEY RD, Contra Costa, CA
Built 1969 Load: 29.5 t ADT: 3,010
TREAT BLVD
FairOver: WALNUT CREEK
0.5 MI EAST OF OAK RD, Contra Costa, CA
Built 1970 Load: 29.5 t ADT: 36,800
BROWN ST
FairOver: ARROYO DEL HAMBRE
0.1 MI W PINE ST, Contra Costa, CA
Built 1929 Load: 29.5 t ADT: 3,000
ICE HOUSE RD
FairOver: TELLS CREEK
18.9 MI N OF US 50, El Dorado, CA
Built 1963 Load: 29.5 t ADT: 1,500
E MOUNT WHITNEY AV
FairOver: BIG B DITCH
0.3 MI EAST OF PEACH AVE, Fresno, CA
Built 1928 Load: 29.5 t ADT: 2,270
N. CHESTNUT AVE
FairOver: MILL DITCH
SOUTH OF MCKINLEY AV, Fresno, CA
Built 1959 Load: 29.5 t ADT: 29,841
E JENSEN AVE
FairOver: FRIANT-KERN CANAL
0.05 MI E/O NAVELENCIA AV, Fresno, CA
Built 1949 Load: 29.5 t ADT: 200
S PEACH AVE
FairOver: HARLAN STEVENS DITCH
0.21 MI N OF NEBRASKA, Fresno, CA
Built 1925 Load: 29.5 t ADT: 200
N MACDONOUGH AVE
FairOver: FRESNO CANAL
0.5 MI NORTH OF BELMONT, Fresno, CA
Built 1948 Load: 29.5 t ADT: 350
STATE ROUTE 162
FairOver: BIG BUTTE CREEK
03-GLE-162-84.58, Glenn, CA
Built 1951 Load: 29.5 t ADT: 1,500
MAPLE CREEK ROAD
FairOver: HEATH CREEK
3.12 MI S BUTLER VLY RD, Humboldt, CA
Built 1961 Load: 29.5 t ADT: 17
ISHI PISHI ROAD
FairOver: WILSON CREEK
3.1 MI S JCT WITH SR 96, Humboldt, CA
Built 1975 Load: 29.5 t ADT: 132
Left O&M Canal Rd
FairOver: 120 Wash overchute
13 miles NE of Yuma, Imperial, CA
Built 1935 Load: 29.5 t ADT: 50
STATE ROUTE 86 SB
FairOver: SOUTH SAND DUNE WASH
11-IMP-086-45.69, Imperial, CA
Built 1987 Load: 29.5 t ADT: 5,600
YOURMAN RD
FairOver: CENTRAL MAIN CANAL
0.5 MI N/O OF COLE RD, Imperial, CA
Built 1965 Load: 29.5 t ADT: 300
Showing 11,601-11,650 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.