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 70
GoodOver: NORTH FORK FEATHER RIVER
02-PLU-070-5.58, Plumas, CA
Built 1936 Load: 22.4 t ADT: 1,345
INTERSTATE 10 EB
GoodOver: ADAIR DITCH
08-RIV-010-R100.38, Riverside, CA
Built 1967 Load: 22.4 t ADT: 11,500
FEDERAL BLVD
GoodOver: SOUTH CHOLLAS CREEK
11-SD-000-0.00-SD, San Diego, CA
Built 1930 Load: 22.4 t ADT: 18,645
INTERSTATE 580 WB
GoodOver: CORRAL HOLLOW CREEK
10-SJ-580-7.88, San Joaquin, CA
Built 1966 Load: 22.4 t ADT: 16,000
US HIGHWAY 101 SB
GoodOver: GRAVES CREEK
05-SLO-101-49.40, San Luis Obispo, CA
Built 1951 Load: 22.4 t ADT: 31,000
TEPUSQUET ROAD
GoodOver: TEPUSQUET CREEK
1.72 MI N FOXEN CANYON RD, Santa Barbara, CA
Built 1948 Load: 22.4 t ADT: 181
TEPUSQUET ROAD
GoodOver: COLSON CREEK
AT COLSON CANYON ROAD, Santa Barbara, CA
Built 1952 Load: 22.4 t ADT: 344
VIA MONTE DRIVE
GoodOver: SARATOGA CREEK
NW SARATOGA AVE, Santa Clara, CA
Built 1962 Load: 22.4 t ADT: 1,569
STATE ROUTE 152
GoodOver: CORRALITOS CREEK
05-SCR-152-1.94, Santa Cruz, CA
Built 1936 Load: 22.4 t ADT: 7,000
MONTAGUE GRENADA
GoodOver: JULIEN CREEK
0.4 MI N OF SH 3, Siskiyou, CA
Built 1974 Load: 22.4 t ADT: 1,153
RED HILL
GoodOver: S. FK. SACRAMENTO RIVER
NO DATA ENTERED, Siskiyou, CA
Built 1972 Load: 22.4 t ADT: 50
HAMILTON AVENUE
GoodOver: MCCLURE CREEK
0.1 MI WEST WOODLAND AVE, Tehama, CA
Built 1970 Load: 22.4 t ADT: 100
KAUFFMAN AVE
GoodOver: UNNAMED CHANNEL
1.0 MI E OF SR 99, Tehama, CA
Built 1984 Load: 22.4 t ADT: 348
D 112
GoodOver: SOUTH BRANCH TULE RIVER
1.0 MI N OF AVE 160, Tulare, CA
Built 1985 Load: 22.4 t ADT: 300
CR 168
GoodOver: PORTER SLOUGH
0.1 MI S OF AVE 188, Tulare, CA
Built 1951 Load: 22.4 t ADT: 375
TUOLUMNE RD
GoodOver: TURNBACK CREEK
0.3 MI W/O CARTER ST, Tuolumne, CA
Built 1961 Load: 22.4 t ADT: 11,848
COUNTY ROAD 93A
GoodOver: CHICKAHOMINY SLOUGH
SOUTH OF C.R. #31, Yolo, CA
Built 1968 Load: 22.4 t ADT: 4,248
US 50-RAMP G06-EB
GoodOver: N/A
03-YOL-050-2.60-WSAC, Yolo, CA
Built 1966 Load: 22.4 t ADT: 9,000
STATE ROUTE 49
GoodOver: SAN ANTONIO CREEK
10-CAL-049-14.09, Calaveras, CA
Built 1934 Load: 22.7 t ADT: 7,300
STATE ROUTE 49
GoodOver: SAN DOMINGO CREEK
10-CAL-049-12.51, Calaveras, CA
Built 1934 Load: 22.7 t ADT: 7,100
Canal Trail
GoodOver: Galinda Creek
Contra Costa Canal, Contra Costa, CA
Built 1939 Load: 22.7 t ADT: 2
CAVALLO RD
GoodOver: E ANTIOCH CR
0.1 MI S WILBUR AVE, Contra Costa, CA
Built 1961 Load: 22.7 t ADT: 4,100
MYRTLE AVE
GoodOver: FRESHWATER CREEK
4.6 MI E/O SR 101, Humboldt, CA
Built 1983 Load: 22.7 t ADT: 7,009
CARSON WOODS ROAD
GoodOver: ROHNER CREEK
0.8 MI NORTH OF MAIN ST, Humboldt, CA
Built 1959 Load: 22.7 t ADT: 303
U.S. HIGHWAY 6
GoodOver: BISHOP CREEK
09-INY-006-0.45-BIS, Inyo, CA
Built 1937 Load: 22.7 t ADT: 4,550
ROSCOE BLVD
GoodOver: ALISO CREEK
0.1 MI W/O WILBUR AVE., Los Angeles, CA
Built 1955 Load: 22.7 t ADT: 35,929
VAL VISTA ST
GoodOver: SAN JOSE CRK
0.1MI N/O I-10 FWY, Los Angeles, CA
Built 1964 Load: 22.7 t ADT: 2,538
STATE ROUTE 1
GoodOver: HILLSIDE
04-MRN-001-11.63, Marin, CA
Built 1982 Load: 22.7 t ADT: 3,900
STEELE RD
GoodOver: TENMILE CREEK
0.3 MI W OF US 101, Mendocino, CA
Built 1980 Load: 22.7 t ADT: 347
CR 111
GoodOver: J 14 B CANAL
1.1 MI N SH 139, Modoc, CA
Built 1954 Load: 22.7 t ADT: 200
CR 111
GoodOver: J 14 A CANAL
2.6 MI N OF SH 139, Modoc, CA
Built 1954 Load: 22.7 t ADT: 200
STATE ROUTE 108
GoodOver: WOLF CREEK
09-MNO-108-9.45, Mono, CA
Built 1941 Load: 22.7 t ADT: 1,910
TOPAZ LANE
GoodOver: WEST WALKER RIVER
0.1 MI E RTE 395, PM 114, Mono, CA
Built 1938 Load: 22.7 t ADT: 83
DRY CREEK RD
GoodOver: SOUTH FORK DRY CREEK
2.0 MI E OF RTE 49, Placer, CA
Built 1966 Load: 22.7 t ADT: 3,401
ARLINGTON RD
GoodOver: INDIAN CREEK
0.1 MI E/O SR 89, Plumas, CA
Built 1964 Load: 22.7 t ADT: 780
STATE ROUTE 111 SB
GoodOver: UP RR & AMTRAK
08-RIV-111-R62.93, Riverside, CA
Built 1966 Load: 22.7 t ADT: 7,140
STATE ROUTE 111 NB
GoodOver: UP RR & AMTRAK
08-RIV-111-R62.93, Riverside, CA
Built 1966 Load: 22.7 t ADT: 7,140
KIRBY STREET
GoodOver: WHITTIER AVENUE CHANNEL
0.47 MI. N/O STETSON AVE., Riverside, CA
Built 1972 Load: 22.7 t ADT: 13,000
STATE ROUTE 99NB
GoodOver: SOUTH LAGOON CREEK
03-SAC-099-4.91, Sacramento, CA
Built 1958 Load: 22.7 t ADT: 31,500
SCOTT ROAD
GoodOver: COYOTE CREEK
5.7 MI N LATROBE RD, Sacramento, CA
Built 1979 Load: 22.7 t ADT: 2,265
BARTON RD
GoodOver: BNSF RY,AMTRAK,METROLINK
0.1 MI E LA CADENA DR, San Bernardino, CA
Built 1936 Load: 22.7 t ADT: 9,847
MT VERNON AVE
GoodOver: LYTLE CAJON CHANNEL
1.25 MI N OF I-10, San Bernardino, CA
Built 1945 Load: 22.7 t ADT: 13,562
CAUGHLIN ROAD
GoodOver: CALIFORNIA AQUEDUCT
3.3 MI N OF PHELAN RD, San Bernardino, CA
Built 1971 Load: 22.7 t ADT: 220
MARKET ST
GoodOver: HILLSIDE
BTWN STNTN & SHORT ST, San Francisco, CA
Built 1958 Load: 22.7 t ADT: 50,000
STATE ROUTE 99
GoodOver: PIXLEY SLOUGH
10-SJ-099-26.86, San Joaquin, CA
Built 1930 Load: 22.7 t ADT: 60,500
STATE ROUTE 99
GoodOver: MOSHER SLOUGH
10-SJ-099-24.41, San Joaquin, CA
Built 1930 Load: 22.7 t ADT: 64,000
S ACCESS RD
GoodOver: N FK S LITTLEJOHNS CREEK
1 MI S MARIPOSA RD, San Joaquin, CA
Built 1954 Load: 22.7 t ADT: 3,202
SANTA ROSA CR RD
GoodOver: ROCKY CREEK
1.0 MI NW SR 46, San Luis Obispo, CA
Built 1948 Load: 22.7 t ADT: 1,204
STATE ROUTE 84
GoodOver: EL CORTE DE MADERA CREEK
04-SM-084-3.92, San Mateo, CA
Built 1954 Load: 22.7 t ADT: 1,400
STATE ROUTE 17
GoodOver: LOS GATOS CREEK
04-SCL-017-12.03-CMB, Santa Clara, CA
Built 1959 Load: 22.7 t ADT: 151,200
Showing 18,001-18,050 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.