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
PAPOOSE
GoodOver: PAPOOSE CREEK
NO DATA ENTERED, Trinity, CA
Built 1975 ADT: 50
MULE CREEK
GoodOver: EAST FORK STUART FORK
NO DATA ENTERED, Trinity, CA
Built 1967 ADT: 50
SWIFT CREEK
GoodOver: CEMENT CREEK
NO DATA ENTERED, Trinity, CA
Built 1972 ADT: 50
SCORPION CREEK
GoodOver: NORTH FK. SCORPION CREEK
NO DATA ENTERED, Trinity, CA
Built 1977 ADT: 50
SCORPION CREEK
GoodOver: SCORPION CREEK
NO DATA ENTERED, Trinity, CA
Built 1977 ADT: 50
BOULDER LAKE
GoodOver: COFFEE CREEK
NO DATA ENTERED, Trinity, CA
Built 1965 ADT: 50
E FORK NEW RIVER
GoodOver: NEW RIVER
NO DATA ENTERED, Trinity, CA
Built 1966 ADT: 50
BOULDER LAKE
GoodOver: BOULDER CREEK
NO DATA ENTERED, Trinity, CA
Built 1987 ADT: 50
WHALEN
GoodOver: CROW CREEK
NO DATA ENTERED, Trinity, CA
Built 1977 ADT: 50
CEDAR CREEK
GoodOver: CEDAR CREEK
NO DATA ENTERED, Trinity, CA
Built 1977 ADT: 50
HIGHLAND LAKES
GoodOver: EAST FORK TRINITY RIVER
NO DATA ENTERED, Trinity, CA
Built 1959 ADT: 50
CEDAR CREEK
GoodOver: BEAR CREEK
NO DATA ENTERED, Trinity, CA
Built 1989 ADT: 50
22S10
GoodOver: 22S10/SOUTH CREEK
NO DATA ENTERED, Tulare, CA
Built 1970 ADT: 10
WINDING ROAD
GoodOver: BRANCH CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1962 ADT: 50
WINDING ROAD
GoodOver: STANISLAUS RIVER
NO DATA ENTERED, Tuolumne, CA
Built 1957 ADT: 40
COLLECTOR ROAD
GoodOver: MCCORMICK CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1970 ADT: 50
ROAD 20N35
GoodOver: SLATE CREEK
NO DATA ENTERED, Yuba, CA
Built 1957 ADT: 50
EVAN HEWES HWY
GoodOver: FLEUR DITCH
7.2 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 2.7 t ADT: 372
CHERRY AVE
GoodOver: UP RR & AMTRAK
200' S OF I-10, San Bernardino, CA
Built 1959 Load: 4.2 t ADT: 33,843
NAT TRAILS HWY
GoodOver: GORDO DITCH
1.8 MI E OF AMBOY RD, San Bernardino, CA
Built 1930 Load: 4.5 t ADT: 790
ALLEGHANY RD
GoodOver: OREGON CREEK
0.1 MI EAST OF S.R. 49, Yuba, CA
Built 1860 Load: 4.9 t ADT: 60
TURNPIKE ROAD
GoodOver: TRINITY RIVER
LEWISTON, Trinity, CA
Built 1902 Load: 5.2 t ADT: 751
BRIDGE ARBOR N RD
GoodOver: CLOVER CREEK
SOUTH OF SR 20 IN UPER LK, Lake, CA
Built 1931 Load: 6.2 t ADT: 80
EVAN HEWES HWY
GoodOver: GYPSUM DITCH
1.8 MI W/O DUNAWAY RD, Imperial, CA
Built 1932 Load: 6.5 t ADT: 1,872
TUSCAN SPRINGS RD
GoodOver: SALT CREEK
HOGSBACK ROAD, Tehama, CA
Built 1963 Load: 6.5 t ADT: 7
OAK GROVE ROAD
GoodOver: STRIPED ROCK CREEK
0.2 MI N MADERA CO, Mariposa, CA
Built 1912 Load: 7.1 t ADT: 50
EVAN HEWES HWY
GoodOver: BINGO DITCH
5.5 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 7.8 t ADT: 372
INTERSTATE 605
GoodOver: FAIRTON STREET
07-LA-605-R6.32-NRW, Los Angeles, CA
Built 1966 Load: 8.4 t ADT: 297,000
ALUM ROCK FALLS RD
GoodOver: PENITENCIA CREEK
1.8 MI NE OF PARK GATE, Santa Clara, CA
Built 1922 Load: 8.7 t ADT: 10
US 50-RAMP G17-WB
GoodOver: N/A
03-YOL-050-2.79-WSAC, Yolo, CA
Built 1966 Load: 8.7 t ADT: 23,000
EVAN HEWES HWY
GoodOver: ZINGO DITCH
5.0 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 9.7 t ADT: 372
ALAMITOS ROAD
GoodOver: ALAMITOS CREEK
0.4 MI S/O BERTRAM RD, Santa Clara, CA
Built 1935 Load: 9.7 t ADT: 350
CLEAR CREEK ROAD
GoodOver: FIVEMILE CREEK
CLEAR CREEK, Siskiyou, CA
Built 1950 Load: 9.7 t ADT: 50
WINDING ROAD
GoodOver: GERLE CREEK
NO DATA ENTERED, El Dorado, CA
Built 1969 Load: 10.0 t ADT: 50
RAYNOR RANCH ROAD
GoodOver: DUTCHMAN CREEK
2.0 MI E BAXTER ROAD, Merced, CA
Built 1960 Load: 10.0 t ADT: 16
5TH STREET
GoodOver: SANTA ANA RIVER CHANNEL
0.6 MI E/O HARBOR BLVD, Orange, CA
Built 1962 Load: 10.0 t ADT: 13,000
ALVES ROAD
GoodOver: ALVES DRAIN
0.1 MI S/O EL CAPITAN WY, Merced, CA
Built 1925 Load: 10.4 t ADT: 61
ROAD 208
GoodOver: FRIANT-KERN CANAL
0.1 MI SOUTH OF AVENUE 96, Tulare, CA
Built 1949 Load: 10.7 t ADT: 325
AVENUE 88
GoodOver: FRIANT-KERN CANAL
0.8 MI WEST OF ROAD 208, Tulare, CA
Built 1949 Load: 11.0 t ADT: 125
GRIFFIN ROAD
GoodOver: LEWIS CREEK
0.05 MI NE OF SR 198, Monterey, CA
Built 1950 Load: 11.3 t ADT: 50
CLEAR CREEK ROAD
GoodOver: FOURMILE CREEK
CLEAR CREEK, Siskiyou, CA
Built 1950 Load: 11.3 t ADT: 50
AVENUE 80
GoodOver: FRIANT-KERN CANAL
0.5 MI EAST OF ROAD 192, Tulare, CA
Built 1949 Load: 11.7 t ADT: 100
ENTERPRISE BLVD
GoodOver: LAKE WASHINGTON
0.4 MI S OF I-80, Yolo, CA
Built 1976 Load: 11.7 t ADT: 20,000
LTL TUJUNGA CYN RD
GoodOver: PACOIMA CRK
9.0MI N/O FOOTHILL BLVD, Los Angeles, CA
Built 1931 Load: 12.0 t ADT: 2,244
LTL GOPHER CYN RD
GoodOver: GOPHER CANYON CREEK
360FT N/O GOPHER CYN RD, San Diego, CA
Built 1959 Load: 12.3 t ADT: 1,194
HALL RD
GoodOver: WEST BURCH CREEK
CAPAY ROAD, Tehama, CA
Built 1940 Load: 12.3 t ADT: 231
VENTURA AVE
GoodOver: CANADA LARGA
0.3 MI S CANADA LARGA RD, Ventura, CA
Built 1931 Load: 12.3 t ADT: 7,700
NO DATA ENTERED
GoodOver: NO DATA ENTERED
S23 T15N R2E, Del Norte, CA
Built 1963 Load: 12.6 t ADT: 50
Boca Dam Road
GoodOver: Boca Dam Spillway
0.4 mi N of I80, Nevada, CA
Built 1938 Load: 12.8 t ADT: 185
EVAN HEWES HWY
GoodOver: SANDY DITCH
0.4 MI W/O DUNAWAY RD, Imperial, CA
Built 1932 Load: 13.0 t ADT: 1,872
Showing 17,151-17,200 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.