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
ALGERINE RD
FairOver: CURTIS CREEK
2.0 MI NW OF TWIST RD, Tuolumne, CA
Built 1925 Load: 66.1 t ADT: 265
INTERSTATE 5
FairOver: SMITH CREEK
03-YOL-005-R16.74, Yolo, CA
Built 1970 Load: 66.1 t ADT: 11,750
N680-DIABLO RD OFF
FairOver: SAN RAMON CREEK
04-CC-680-R7.35-DNVL, Contra Costa, CA
Built 1975 Load: 66.4 t ADT: 4,650
JACKSON ST
FairOver: VERDUGO WASH
0.1MI N/O US-101 FWY, Los Angeles, CA
Built 1969 Load: 66.4 t ADT: 5,253
TENNANT RD
FairOver: ANTELOPE CREEK
11.6 MI SE SR97, Siskiyou, CA
Built 1971 Load: 66.4 t ADT: 79
STATE ROUTE 132
FairOver: DRY CREEK
10-STA-132-15.64-MOD, Stanislaus, CA
Built 1990 Load: 66.4 t ADT: 16,100
SECOND STREET
FairOver: SAN LORENZO CREEK
N/O RUSSELL WAY, Alameda, CA
Built 1974 Load: 66.7 t ADT: 11,762
NORTH BROADWAY
FairOver: LA RIV,BNSF,UPRR,METRO,
0.3 MI WEST INTERSTATE 5, Los Angeles, CA
Built 1909 Load: 66.7 t ADT: 23,648
STATE ROUTE 20
FairOver: EAST FORK RUSSIAN RIVER
01-MEN-020-36.36, Mendocino, CA
Built 1958 Load: 66.7 t ADT: 11,350
TORREY RD
FairOver: SANTA CLARA RIVER
1.1 MI S OF S.R. 126, Ventura, CA
Built 1974 Load: 67.1 t ADT: 500
S FRUIT AVE
FairOver: RIVERDALE DITCH
0.06 MI S OF RIVERDALE AV, Fresno, CA
Built 1940 Load: 67.7 t ADT: 500
REDWOOD ROAD
FairOver: REDWOOD CREEK
S/E OF MT VEEDER RD, Napa, CA
Built 1977 Load: 67.7 t ADT: 1,221
JEFFERSON AVENUE
FairOver: WARM SPRINGS CREEK
1.1 MI. NW/O WINCHESTER, Riverside, CA
Built 1978 Load: 67.7 t ADT: 29,474
SWTWATER SPRING RD
FairOver: PORTER CREEK
6.1 MI W ARMSTRONG RD, Sonoma, CA
Built 1974 Load: 67.7 t ADT: 140
ROAD M2
FairOver: THOMES CREEK
NO DATA ENTERED, Tehama, CA
Built 1981 Load: 67.7 t ADT: 50
SEVENTH ST
FairOver: FRANKLIN CREEK
0.15 MI E OF CARP. AVE, Santa Barbara, CA
Built 1977 Load: 68.0 t ADT: 3,214
LAVEZZOLA ROAD
FairOver: LAVEZZOLA CREEK
3.6 MI NORTH OF SR 49, Sierra, CA
Built 1958 Load: 68.0 t ADT: 50
SAWYERS BAR RD
FairOver: NORTH FORK SALMON RIVER
3 MI N WHITES GULCH RD, Siskiyou, CA
Built 1982 Load: 68.0 t ADT: 105
INTERSTATE 210
FairOver: FLINT CANYON WASH
07-LA-210-R21.84-PAS, Los Angeles, CA
Built 1974 Load: 68.4 t ADT: 113,000
INTERSTATE 15 NB
FairOver: LYTLE CREEK
08-SBD-015-13.08, San Bernardino, CA
Built 1975 Load: 68.4 t ADT: 69,000
STATE ROUTE 99 NB
FairOver: UP RR
10-STA-099-R6.41-TUR, Stanislaus, CA
Built 1973 Load: 68.4 t ADT: 36,500
U.S. HIGHWAY 101
FairOver: BENBOW DR & S FK EEL RIV
01-HUM-101-R5.63, Humboldt, CA
Built 1980 Load: 68.7 t ADT: 4,500
EL PORTAL ROAD
FairOver: WILDCAT CREEK
4.9 miles east from El Po, Mariposa, CA
Built 1985 Load: 68.9 t ADT: 2,080
GRAND ST
FairOver: ALAMEDA LAKE
0.1 MI N/E OF OTIS DR, Alameda, CA
Built 1958 Load: 69.0 t ADT: 7,156
BITNEY SPRINGS RD
FairOver: DEER CREEK
4.3 MI NE/O GRASS VALLEY, Nevada, CA
Built 1981 Load: 69.0 t ADT: 2,214
STATE ROUTE 96
FairOver: HILLSIDE
01-HUM-096-16.84, Humboldt, CA
Built 1964 Load: 69.3 t ADT: 1,505
ELECTRIC AVE
FairOver: BUTLER SLOUGH
0.6 MI NE OF SR 99, Tehama, CA
Built 1930 Load: 69.3 t ADT: 10
STATE ROUTE 91
FairOver: BNSF RY,AMTRAK,METROLINK
08-RIV-091-R2.84-POM, Riverside, CA
Built 1970 Load: 70.0 t ADT: 270,000
HOWE CREEK ROAD
FairOver: ATWELL CREEK
1.3 MI S/O BLUE SLIDE RD, Humboldt, CA
Built 1960 Load: 70.6 t ADT: 68
AIRPORT BLVD
FairOver: CORRALITOS CREEK
0.2 MI N FREEDOM BLVD, Santa Cruz, CA
Built 1969 Load: 70.6 t ADT: 20,000
EAST FORK HYFK RD
FairOver: EAST FORK HAYFORK CREEK
3.7 MI E OF WILDWOOD ROAD, Trinity, CA
Built 2004 Load: 70.6 t ADT: 50
RAILROAD AVENUE
FairOver: NEWHALL CREEK
789 FT N/O LYONS AVE, Los Angeles, CA
Built 1996 Load: 71.3 t ADT: 37,000
GOETZ ROAD
FairOver: SAN JACINTO RIVER
1.4 MI. S/O ELLIS AVENUE, Riverside, CA
Built 1970 Load: 71.3 t ADT: 12,746
ROAD 168
FairOver: MIDDLE FORK TULE RIVER
0.8 MI N OF AVE 168, Tulare, CA
Built 1980 Load: 71.9 t ADT: 375
COUNTY RD 68
FairOver: N FK LOGAN CREEK
2.7 MI E OF I-5, Glenn, CA
Built 1977 Load: 72.3 t ADT: 225
YORK BLVD
FairOver: ARROYO SECO CHANNEL
AT SR 110, Los Angeles, CA
Built 1912 Load: 72.3 t ADT: 26,327
DUTCH CREEK ROAD
FairOver: TRINITY RIVER
0.3 MI S OF SR 299, Trinity, CA
Built 1981 Load: 72.3 t ADT: 782
SM 220
FairOver: NORTH FORK TULE RIVER
0.1 MI BALCH PARK RD, Tulare, CA
Built 1977 Load: 72.3 t ADT: 175
SOUTHHAMPTON COURT
FairOver: MERIDIAN STREET CHANNEL
100' E/O MERIDIAN STREET, Riverside, CA
Built 1988 Load: 72.6 t ADT: 1,000
EXCELSIOR AVE
FairOver: LAKELAND CANAL
BTWN 4TH & 5TH AVE, Kings, CA
Built 1985 Load: 73.2 t ADT: 400
VIA NOVENO
FairOver: ENGLISH CANYON CHANNEL
300' W/O LOS ALISOS BLVD, Orange, CA
Built 1976 Load: 73.2 t ADT: 1,025
INTERSTATE 5
FairOver: SANTA MARGARITA RIVER
11-SD-005-R56.43L-OCN, San Diego, CA
Built 1967 Load: 73.2 t ADT: 70,250
INTERSTATE 210
FairOver: KINNELOA AVE
07-LA-210-R29.02-PAS, Los Angeles, CA
Built 1976 Load: 73.4 t ADT: 269,000
NEWTOWN RD
FairOver: SOUTH FORK WEBER CREEK
0.7 MI W OF SNOWS RD, El Dorado, CA
Built 1929 Load: 73.5 t ADT: 2,667
BARTLETT SPRGS RD
FairOver: STANTON CREEK
19.6 MI N OF SR 20, Lake, CA
Built 1960 Load: 73.5 t ADT: 108
SIERRA MADRE BLVD
FairOver: SIERRA MADRE WASH
0.2MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1953 Load: 73.5 t ADT: 4,896
MCADAMS CREEK RD
FairOver: MCADAMS CREEK
2.55 MI N SR 3, Siskiyou, CA
Built 1975 Load: 73.9 t ADT: 256
LA PORTE RD
FairOver: NATCHEZ CREEK
AT YUBA/BUTTE COUNTY LINE, Yuba, CA
Built 1984 Load: 73.9 t ADT: 390
INTERSTATE 5
FairOver: SANTA MARGARITA RIVER
11-SD-005-R56.43R-OCN, San Diego, CA
Built 1967 Load: 74.2 t ADT: 132,000
SOUTH FORK ROAD
FairOver: KERLIN CREEK
3.8 MI N HYAMPOM RD, Trinity, CA
Built 1960 Load: 74.5 t ADT: 160
Showing 16,901-16,950 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.