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
LILAC ROAD
GoodOver: SAN LUIS REY RIVER
0.2 MI S/O SR 76, San Diego, CA
Built 1993 Load: 31.8 t ADT: 434
FINE ROAD
GoodOver: MORMON SLOUGH
0.2 MI SOUTH OF SH 26, San Joaquin, CA
Built 1972 Load: 31.8 t ADT: 801
STATE ROUTE 1
GoodOver: EL JARO CREEK
05-SB-001-R6.78, Santa Barbara, CA
Built 1967 Load: 31.8 t ADT: 7,000
STATE ROUTE 1
GoodOver: EL JARO CREEK
05-SB-001-11.40, Santa Barbara, CA
Built 1958 Load: 31.8 t ADT: 6,900
COLEMAN AVE
GoodOver: GUADALUPE RIVER
NEAR VENDOME ST, Santa Clara, CA
Built 1958 Load: 31.8 t ADT: 13,500
WOLFE ROAD
GoodOver: PERIMETER ROAD
0.1 MI S STATE RTE 237, Santa Clara, CA
Built 1976 Load: 31.8 t ADT: 50,069
ASH CR RD
GoodOver: ASH CREEK
4.0 MI E PARKVILLE RD, Shasta, CA
Built 1950 Load: 31.8 t ADT: 200
KLAMATH RIVER ROAD
GoodOver: KLAMATH RIVER
SOUTH OF SH 96, Siskiyou, CA
Built 2014 Load: 31.8 t ADT: 200
MAYS CANYON RD
GoodOver: POCKET CANYON CREEK
JUST W OF S.R. 116, Sonoma, CA
Built 1968 Load: 31.8 t ADT: 95
PIONEER AVENUE
GoodOver: LONE TREE CREEK
100FT S/O FREELOVE AVE, Stanislaus, CA
Built 1918 Load: 31.8 t ADT: 350
ROAD 228
GoodOver: LEWIS CREEK
0.13 MI N OF AVE 232, Tulare, CA
Built 1949 Load: 31.8 t ADT: 250
STATE ROUTE 33
GoodOver: BERGES CREEK
07-VEN-033-57.31, Ventura, CA
Built 1953 Load: 31.8 t ADT: 420
STATE ROUTE 24
GoodOver: DOLORES DRIVE
04-CC-024-R5.84-LFYT, Contra Costa, CA
Built 1957 Load: 32.1 t ADT: 79,500
INTERSTATE 680
GoodOver: ARTHUR ROAD
04-CC-680-22.70, Contra Costa, CA
Built 1962 Load: 32.1 t ADT: 105,000
STATE ROUTE 162
GoodOver: BIG BUTTE CREEK OVRFL
03-GLE-162-84.11, Glenn, CA
Built 1953 Load: 32.1 t ADT: 1,500
COUNTY RD 69
GoodOver: TEHAMA-COLUSA CANAL
1.8 MI W OF RD 'D', Glenn, CA
Built 1975 Load: 32.1 t ADT: 25
U.S. HIGHWAY 101
GoodOver: RICHARDSON GROVE PARK RD
01-HUM-101-1.61, Humboldt, CA
Built 1958 Load: 32.1 t ADT: 4,500
STATE ROUTE 36
GoodOver: LITTLE LARABEE CREEK
01-HUM-036-25.27, Humboldt, CA
Built 1960 Load: 32.1 t ADT: 1,200
INTERSTATE 8 WB
GoodOver: SOUTH FORK COYOTE WASH
11-IMP-008-R14.46, Imperial, CA
Built 1968 Load: 32.1 t ADT: 6,200
INTERSTATE 8 EB
GoodOver: SOUTH FORK COYOTE WASH
11-IMP-008-R14.44, Imperial, CA
Built 1968 Load: 32.1 t ADT: 6,200
STATE ROUTE 198
GoodOver: HANFORD-ARMONA RD
06-KIN-198-R15.75, Kings, CA
Built 1964 Load: 32.1 t ADT: 27,500
INTERSTATE 5
GoodOver: QUAIL LAKE RD
07-LA-005-R81.76, Los Angeles, CA
Built 1967 Load: 32.1 t ADT: 35,890
SR 118 EB
GoodOver: LAUREL CANYON BLVD
07-LA-118-R11.57R-LA, Los Angeles, CA
Built 1976 Load: 32.1 t ADT: 66,750
LONGDEN AVE
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 32.1 t ADT: 5,768
DEL VALLE ST
GoodOver: PUENTE CR
0.1MI S/O AMAR RD, Los Angeles, CA
Built 1970 Load: 32.1 t ADT: 3,579
SAN PASCUAL AVE BR
GoodOver: ARROYO SECO CHANNEL
RAMON DR & GOLD PLACE, Los Angeles, CA
Built 1939 Load: 32.1 t ADT: 15,900
INTERSTATE 10 EB
GoodOver: COPA DITCH
08-RIV-010-R113.81, Riverside, CA
Built 1966 Load: 32.1 t ADT: 10,700
INTERSTATE 10
GoodOver: WIDE DITCH
08-RIV-010-R101.14, Riverside, CA
Built 1967 Load: 32.1 t ADT: 11,500
INTERSTATE 10 EB
GoodOver: SMOKY GULCH
08-RIV-010-R63.65-COA, Riverside, CA
Built 1964 Load: 32.1 t ADT: 11,250
INTERSTATE 10
GoodOver: BEEHIVE DITCH
08-RIV-010-R124.23, Riverside, CA
Built 1966 Load: 32.1 t ADT: 10,700
HOLT AVE
GoodOver: SAN ANTONIO CREEK CHAN
0.2 MI E INDIAN HILL AVE, San Bernardino, CA
Built 1939 Load: 32.1 t ADT: 24,700
CUYAMACA ST
GoodOver: FORESTER CREEK
0.13MI S/O PROSPECT AVE., San Diego, CA
Built 1965 Load: 32.1 t ADT: 19,500
ESCALON-BELLOTA RD
GoodOver: CHANNEL A
1.0 MI S OF FLOOD RD, San Joaquin, CA
Built 1965 Load: 32.1 t ADT: 1,119
US HIGHWAY 101 SB
GoodOver: UP RR & AMTRAK, MISSION
05-SLO-101-R67.71, San Luis Obispo, CA
Built 1965 Load: 32.1 t ADT: 9,000
US HIGHWAY 101 NB
GoodOver: UP RR & AMTRAK, MISSION
05-SLO-101-R67.71, San Luis Obispo, CA
Built 1965 Load: 32.1 t ADT: 9,000
US HIGHWAY 101 SB
GoodOver: NOJOQUI CREEK
05-SB-101-54.71, Santa Barbara, CA
Built 1955 Load: 32.1 t ADT: 12,000
KIELY BLVD
GoodOver: SARATOGA CREEK
N HOMESTEAD RD, Santa Clara, CA
Built 1962 Load: 32.1 t ADT: 20,000
EAST CLIFF DRIVE
GoodOver: UP RR
AT MURRAY ST, Santa Cruz, CA
Built 1990 Load: 32.1 t ADT: 20,000
WHALEN RD
GoodOver: CASTLE CREEK
NO DATA ENTERED, Shasta, CA
Built 1999 Load: 32.1 t ADT: 50
STATE ROUTE 3
GoodOver: YREKA CREEK
02-SIS-003-L49.99-YRE, Siskiyou, CA
Built 1970 Load: 32.1 t ADT: 10,100
FOOTHILL DRIVE
GoodOver: YREKA CREEK
EAST OF HEARN CENTER, Siskiyou, CA
Built 1970 Load: 32.1 t ADT: 1,328
INTERSTATE 80 EB
GoodOver: GIBSON CANYON CREEK
04-SOL-080-31.12-VAC, Solano, CA
Built 1946 Load: 32.1 t ADT: 61,500
PASKENTA RD
GoodOver: MCCLURE CREEK SOUTH
5.4 MI S/O DUSTY RD, Tehama, CA
Built 1987 Load: 32.1 t ADT: 660
ROAD 224
GoodOver: PORTER SLOUGH
0.1 MI N OF AVE 160, Tulare, CA
Built 1950 Load: 32.1 t ADT: 7,200
AVE 440
GoodOver: SAND CREEK
0.2 MI E OF SR 63, Tulare, CA
Built 1952 Load: 32.1 t ADT: 100
ROAD 220
GoodOver: YOKOHL CREEK
0.1 MI N OF SR 198, Tulare, CA
Built 1973 Load: 32.1 t ADT: 500
HUENEME RD
GoodOver: REVOLON SLOUGH
0.7 MI N/E WOOD RD, Ventura, CA
Built 1975 Load: 32.1 t ADT: 9,600
N. Russell Avenue
GoodOver: San Luis Canal
1.8 MI S/O SHIELDS AV, Fresno, CA
Built 1966 Load: 32.3 t ADT: 800
INTERSTATE 580 WB
GoodOver: TASSAJARA CREEK
04-ALA-580-18.32-PLE, Alameda, CA
Built 1966 Load: 32.4 t ADT: 102,500
INTERSTATE 580
GoodOver: ARROYO SECO
04-ALA-580-11.04-LVMR, Alameda, CA
Built 1954 Load: 32.4 t ADT: 197,000
Showing 19,901-19,950 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.