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
ROAD 62
GoodOver: SHOAT DRAW
0.8 MI W OF RD 'D', Glenn, CA
Built 1940 Load: 27.2 t ADT: 20
AAC left O&M Road
GoodOver: 888 Wash Overchute
6 mi north of Yuma, AZ, Imperial, CA
Built 1936 Load: 27.2 t ADT: 50
COUNTY LINE RD
GoodOver: FRIANT-KERN CANAL
0.5 MI EAST OF ZACHARY AV, Kern, CA
Built 1971 Load: 27.2 t ADT: 3,000
BUENA VISTA BLVD
GoodOver: ARVIN-EDISON CANAL
0.5 MI EAST OF TEJON HWY, Kern, CA
Built 1965 Load: 27.2 t ADT: 950
TOWERLINE ROAD
GoodOver: ARVIN-EDISON CANAL
0.1 MI S BUENA VISTA BLVD, Kern, CA
Built 1965 Load: 27.2 t ADT: 510
MOUNTAIN VIEW RD
GoodOver: ARVIN-EDISON CANAL
0.4 MI W COMANCHE DR, Kern, CA
Built 1965 Load: 27.2 t ADT: 290
STATE ROUTE 1
GoodOver: COAL CREEK
07-LA-001-44.89-MAL, Los Angeles, CA
Built 1925 Load: 27.2 t ADT: 43,250
STATE ROUTE 39
GoodOver: VAN ORNUM CANYON
07-LA-039-20.66, Los Angeles, CA
Built 1933 Load: 27.2 t ADT: 1,850
SR 138 (PEARBLSSM)
GoodOver: CALIFORNIA AQUEDUCT
07-LA-138-56.06, Los Angeles, CA
Built 1970 Load: 27.2 t ADT: 14,900
CROSS ST
GoodOver: HALLS BECKLEY CYN CHAN
0.3MI E/O OCEAN BLVD, Los Angeles, CA
Built 1936 Load: 27.2 t ADT: 357
HILLSBOROUGH DR
GoodOver: COYOTE CRK
0.1MI W/O BEACH BLVD, Los Angeles, CA
Built 1989 Load: 27.2 t ADT: 9,486
NEWHALL RANCH RD
GoodOver: BOUQUET CYN CHAN
0.2MI W/O BOUQUET CYN RD, Los Angeles, CA
Built 1985 Load: 27.2 t ADT: 48,974
COBB RANCH BLVD
GoodOver: SAN JOAQUIN RIVER OVRFLO
06-MAD-041-0.08, Madera, CA
Built 1941 Load: 27.2 t ADT: 1,250
STATE ROUTE 1
GoodOver: CASPAR CREEK
01-MEN-001-R54.71, Mendocino, CA
Built 1966 Load: 27.2 t ADT: 9,900
IRR CR 111
GoodOver: NO 46 DRAIN
0.6 MI S OF SH 139, Modoc, CA
Built 1954 Load: 27.2 t ADT: 169
SOLANO AVE
GoodOver: DRY CREEK
JUST SOUTH OF DARMS LANE, Napa, CA
Built 1970 Load: 27.2 t ADT: 1,560
STATE ROUTE 57
GoodOver: BNSF RY
12-ORA-057-16.84-PLCN, Orange, CA
Built 1969 Load: 27.2 t ADT: 271,000
WESTERN AVENUE
GoodOver: CARBON CREEK CHANNEL
200' S/O ORANGE AVENUE, Orange, CA
Built 1959 Load: 27.2 t ADT: 17,500
INTERSTATE 10
GoodOver: COACHELLA CANAL
08-RIV-010-R60.39-COA, Riverside, CA
Built 1972 Load: 27.2 t ADT: 11,250
STATE ROUTE 60
GoodOver: SANTA ANA RIVER
08-RIV-060-10.51-RIV, Riverside, CA
Built 1962 Load: 27.2 t ADT: 126,000
52ND AVENUE
GoodOver: COACHELLA CANAL
0.35 MI. E/O JEFFERSON ST, Riverside, CA
Built 1966 Load: 27.2 t ADT: 9,508
SIBLEY STREET
GoodOver: WILLOW CREEK
0.1 MI N BLUE RAVINE RD, Sacramento, CA
Built 1986 Load: 27.2 t ADT: 14,000
SLOUGHHOUSE RD
GoodOver: FOLSOM SOUTH CANAL
2.6 MI SOUTH OF SR 16, Sacramento, CA
Built 1970 Load: 27.2 t ADT: 500
CLAY STATION RD
GoodOver: FOLSOM SOUTH CANAL
0.1 MI E/O TAVERNOR RD, Sacramento, CA
Built 1971 Load: 27.2 t ADT: 2,530
HOBDAY RD
GoodOver: FOLSOM SOUTH CANAL
1.8 MI E/O ALTA MESA RD, Sacramento, CA
Built 1971 Load: 27.2 t ADT: 330
INTERSTATE 15 NB
GoodOver: DOCK DITCH
08-SBD-015-R121.43, San Bernardino, CA
Built 1965 Load: 27.2 t ADT: 22,000
INTERSTATE 5
GoodOver: OTAY RIVER OVERFLOW
11-SD-005-5.09-SD, San Diego, CA
Built 1952 Load: 27.2 t ADT: 143,000
EL CAMINO REAL
GoodOver: ENCINITAS CREEK
AT OLIVENHAIN / LEUCADIA, San Diego, CA
Built 1962 Load: 27.2 t ADT: 29,047
US HIGHWAY 101 SB
GoodOver: SPYGLASS ROAD
05-SLO-101-R19.81, San Luis Obispo, CA
Built 1964 Load: 27.2 t ADT: 29,250
US HIGHWAY 101 NB
GoodOver: SPYGLASS ROAD
05-SLO-101-R19.81, San Luis Obispo, CA
Built 1964 Load: 27.2 t ADT: 29,250
LAKEVIEW DR
GoodOver: LAS TABLAS CREEK
3.8 MI N CHIMNEY ROCK RD, San Luis Obispo, CA
Built 1959 Load: 27.2 t ADT: 260
I-280 SB ONRAMP
GoodOver: LOS TRANCOS CREEK
04-SM-280-R0.01, San Mateo, CA
Built 1969 Load: 27.2 t ADT: 2,100
US HIGHWAY 101 SB
GoodOver: ARROYO QUEMADA
05-SB-101-39.75, Santa Barbara, CA
Built 1917 Load: 27.2 t ADT: 16,000
MASTEN AVE.
GoodOver: LLAGAS CREEK
0.5 MI E/O SH 101, Santa Clara, CA
Built 1940 Load: 27.2 t ADT: 5,380
RADIO LANE
GoodOver: A.C.I.D. CANAL
0.3 MI W OF EASTSIDE RD, Shasta, CA
Built 1950 Load: 27.2 t ADT: 4,110
FENDER FERRY
GoodOver: NOSONI CREEK
NO DATA ENTERED, Shasta, CA
Built 1950 Load: 27.2 t ADT: 30
STATE ROUTE 37
GoodOver: TOLAY CREEK
04-SON-037-4.04, Sonoma, CA
Built 1931 Load: 27.2 t ADT: 32,000
STATE ROUTE 99
GoodOver: NEW CREEK
02-TEH-099-22.54, Tehama, CA
Built 1924 Load: 27.2 t ADT: 9,300
STATE ROUTE 99
GoodOver: MILL RACE CREEK
02-TEH-099-24.13, Tehama, CA
Built 1924 Load: 27.2 t ADT: 9,300
INTERSTATE 5 SB
GoodOver: OAT CREEK
02-TEH-005-R19.67, Tehama, CA
Built 1965 Load: 27.2 t ADT: 14,000
INTERSTATE 5 NB
GoodOver: OAT CREEK
02-TEH-005-R19.67, Tehama, CA
Built 1965 Load: 27.2 t ADT: 14,000
STATE ROUTE 99 NB
GoodOver: TULE RIVER OVERFLOW #1
06-TUL-099-21.92, Tulare, CA
Built 1949 Load: 27.2 t ADT: 21,500
ROAD 152
GoodOver: INSIDE CREEK
0.4 MI S OF SR 137, Tulare, CA
Built 1942 Load: 27.2 t ADT: 930
STATE ROUTE 150
GoodOver: SANTA PAULA CREEK
07-VEN-150-28.53, Ventura, CA
Built 1958 Load: 27.2 t ADT: 3,550
SANTA ROSA RD
GoodOver: ARROYO SANTA ROSA
2.4 MI W MOORPARK RD, Ventura, CA
Built 1972 Load: 27.2 t ADT: 19,000
AFTON RD
GoodOver: LINWELLS DRAIN
JUST W/O AQUAS FRIAS RD, Butte, CA
Built 1938 Load: 27.5 t ADT: 105
WILDWOOD AVENUE
GoodOver: SYCAMORE CREEK
0.2 MI NE MANZANITA AVE, Butte, CA
Built 1999 Load: 27.5 t ADT: 1,654
SR 160
GoodOver: SAN JOAQUIN RIVR ANTIOCH
04-CC-160-0.82, Contra Costa, CA
Built 1978 Load: 27.5 t ADT: 18,900
HARRIET DR
GoodOver: GRAYSON CREEK
AT RUTH DR, Contra Costa, CA
Built 1957 Load: 27.5 t ADT: 800
U.S. HIGHWAY 199
GoodOver: HARDSCRABBLE CREEK
01-DN-199-11.01, Del Norte, CA
Built 2008 Load: 27.5 t ADT: 3,750
Showing 19,201-19,250 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.