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
42N31
FairOver: SOUTH FORK PARKER CREEK
3 MI EAST OF W.WARNER RD, Modoc, CA
Built 1969 ADT: 50
42N35
FairOver: TURNER CREEK
2 MI S OF LOVENESS RD, Modoc, CA
Built 1969 ADT: 50
FDR 36
FairOver: POORMAN CREEK
S1 T17N R10E, Nevada, CA
Built 1957 ADT: 50
FDR 68
FairOver: DOLLY CREEK
S15 T15N R14E, Placer, CA
Built 1971 ADT: 50
FDR 19-22-6
FairOver: N.FK.AMERICAN RIVER
S32 T17N R12E, Placer, CA
Built 1935 ADT: 50
FDR 91-40-2
FairOver: S. FK. YUBA RIVER
S28 T17N R13E, Placer, CA
Built 1938 ADT: 50
FDR 19
FairOver: N. FK. OF N. FK AMER RIV
S8 T16N R12E, Placer, CA
Built 1949 ADT: 50
FDR 70
FairOver: PASS CREEK
S21 T19N R13E, Placer, CA
Built 1966 ADT: 50
NO DATA ENTERED
FairOver: BIG GRIZZLY CREEK
NO DATA ENTERED, Plumas, CA
Built 1974 ADT: 50
ROAD 24N05
FairOver: RED CLOVER CREEK
NO DATA ENTERED, Plumas, CA
Built 1954 ADT: 50
ROAD 22N10
FairOver: GRAY EAGLE CREEK
GRAY EAGLE LODGE, Plumas, CA
Built 1977 ADT: 50
ROAD 23N10
FairOver: POPLAR CREEK
POPLAR CREEK NEAR SLOAT, Plumas, CA
Built 1975 ADT: 50
ROAD 23N08
FairOver: TRIBUTARY TO JAMISON CR
NO DATA ENTERED, Plumas, CA
Built 1976 ADT: 50
ROAD 27N24Y
FairOver: INDIAN CREEK
CAMPGROUND - ANTELOPE LK, Plumas, CA
Built 1967 ADT: 50
ROAD 22N25
FairOver: PINCHARD CREEK
NO DATA ENTERED, Plumas, CA
Built 1949 ADT: 50
ROAD 23N10
FairOver: UPPER HOPKINS CREEK
NO DATA ENTERED, Plumas, CA
Built 1984 ADT: 50
ROAD 22N22
FairOver: LAVA CREEK
NO DATA ENTERED, Plumas, CA
Built 1971 ADT: 50
ROAD 22N43Y
FairOver: LOWER HOPKINS CREEK
NO DATA ENTERED, Plumas, CA
Built 1984 ADT: 5
ROAD 22N57
FairOver: BLACK ROCK CREEK
NO DATA ENTERED, Plumas, CA
Built 1981 ADT: 50
ROAD 22N57
FairOver: SO FORK FEATHER RIVER
NO DATA ENTERED, Plumas, CA
Built 1960 ADT: 40
ROAD 23N15
FairOver: LITTLE NORTH FORK/CG
NO DATA ENTERED, Plumas, CA
Built 1953 ADT: 50
ROAD 23N18
FairOver: TOLAND CREEK
NO DATA ENTERED, Plumas, CA
Built 1974 ADT: 50
ROAD 23N18
FairOver: COLDWATER CREEK
AT ARKANSAS RAVINE, Plumas, CA
Built 1960 ADT: 50
ROAD 23N68
FairOver: SO FORK ROCK CREEK
NO DATA ENTERED, Plumas, CA
Built 1966 ADT: 50
ROAD 24N29
FairOver: MEADOW VALLEY CREEK
MEADOW VALLEY CREEK, Plumas, CA
Built 1966 ADT: 50
CLAY STATION ROAD
FairOver: LAGUNA CREEK
3.5 MI N OF SR 104, Sacramento, CA
Built 1940 ADT: 1,025
NAT TRAILS HWY
FairOver: ETTRICK DITCH
22.7 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 ADT: 230
NAT TRAILS HWY
FairOver: CHANDA DITCH
24.4 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 ADT: 230
NAT TRAILS HWY
FairOver: BRISTOL DITCH
26.7 MI E CRUCERO RD, San Bernardino, CA
Built 1930 ADT: 230
NAT TRAILS HWY
FairOver: LEITH DITCH
3.1 MI E OF AMBOY RD, San Bernardino, CA
Built 1930 ADT: 805
NO DATA ENTERED
FairOver: MIRANDA PINE CREEK
NO DATA ENTERED, Santa Barbara, CA
Built 1923 ADT: 50
NO DATA ENTERED
FairOver: BLUE CANYON CREEK
NO DATA ENTERED, Santa Barbara, CA
Built 1948 ADT: 50
ROAD 32N12
FairOver: HAT CREEK
NO DATA ENTERED, Shasta, CA
Built 1956 ADT: 30
FENDER FERRY
FairOver: PIT RIVER/SHASTA LAKE
NO DATA ENTERED, Shasta, CA
Built 1942 ADT: 50
FENDER FERRY
FairOver: MCCLOUD RIVER/SHASTA LK.
MCCLOUD BRIDGE CG, Shasta, CA
Built 1941 ADT: 50
FORKS FLAT
FairOver: NORTH FORK NOSONI CREEK
NO DATA ENTERED, Shasta, CA
Built 1990 ADT: 50
SIMS MTN.
FairOver: HAZEL CREEK
NO DATA ENTERED, Shasta, CA
Built 1955 ADT: 50
ROAD 20N06
FairOver: ROCK CREEK
NO DATA ENTERED, Sierra, CA
Built 1983 ADT: 50
FDR 524-1-2
FairOver: HAYPRESS CREEK
S26 T20N R12E, Sierra, CA
Built 1938 ADT: 50
FDR 39
FairOver: CHEROKEE CREEK
S6 T19N R9E, Sierra, CA
Built 1940 ADT: 50
C 843
FairOver: MIDDLE FK. YUBA RIVER
S18 T19N R13E, Sierra, CA
Built 1965 ADT: 50
HORSE CREEK ROAD
FairOver: HORSE CREEK
HORSE, Siskiyou, CA
Built 1959 ADT: 50
SEIAD CREEK ROAD
FairOver: SEIAD CREEK
HORSE, Siskiyou, CA
Built 1959 ADT: 50
NO DATA ENTERED
FairOver: BEAR CREEK
BEAVER, Siskiyou, CA
Built 1990 ADT: 5
NO DATA ENTERED
FairOver: BEAR CREEK
BEAVER, Siskiyou, CA
Built 1969 ADT: 5
SOUTH INDIAN ROAD
FairOver: S. FORK INDIAN CREEK
INDIAN, Siskiyou, CA
Built 1966 ADT: 50
BENJAMIN CREEK RD
FairOver: DOOLITTLE CREEK
CLEAR CREEK, Siskiyou, CA
Built 1975 ADT: 50
ELK CREEK ROAD
FairOver: ELK CREEK
ELK-THOMPSON, Siskiyou, CA
Built 1949 ADT: 50
NO DATA ENTERED
FairOver: DOOLITTLE CREEK
ELK-THOMPSON, Siskiyou, CA
Built 1972 ADT: 10
NO DATA ENTERED
FairOver: TAYLOR CREEK
CECILVILLE, Siskiyou, CA
Built 1967 ADT: 10
Showing 7,701-7,750 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.