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
SEMINARY ST
GoodOver: NAPA CREEK
AT ARROYO, Napa, CA
Built 1904 Load: 14.9 t ADT: 1,446
MALDEN AVE
GoodOver: BREA CREEK CHANNEL
50' N/O CHAPMAN AVE, Orange, CA
Built 1934 Load: 14.9 t ADT: 3,102
NICOLAUS RD
GoodOver: E NICOLAUS DSTRBTN CANAL
1.5 MI WEST OF DOWD RD, Placer, CA
Built 1963 Load: 14.9 t ADT: 1,981
GLADDING RD
GoodOver: COON CREEK
SOUTH OF RIOSA RD, Placer, CA
Built 1928 Load: 14.9 t ADT: 560
LA CADENA DR
GoodOver: LYTLE CAJON CHANNEL
0.2 MI NE LAUREL ST, San Bernardino, CA
Built 1945 Load: 14.9 t ADT: 6,000
NORTH B STREET
GoodOver: SAN MATEO CREEK
BALDWIN AVE @ NORTH B ST, San Mateo, CA
Built 1924 Load: 14.9 t ADT: 2,790
U.S. HIGHWAY 101
GoodOver: MATADERO CREEK
04-SCL-101-51.37-PA, Santa Clara, CA
Built 1960 Load: 14.9 t ADT: 187,000
SAN ANTONIO ST
GoodOver: COYOTE CREEK
0.8 MI WEST OF US 101, Santa Clara, CA
Built 1928 Load: 14.9 t ADT: 5,300
SLATE CREEK ROAD
GoodOver: SLATE CREEK
0.4 MI W OF I-5, Shasta, CA
Built 1920 Load: 14.9 t ADT: 82
POWERLINE ROAD
GoodOver: COON CREEK
0.3 MI SOUTH OF SR99, Sutter, CA
Built 1925 Load: 14.9 t ADT: 122
OLD HWY 99 W
GoodOver: RED BANK CREEK
1.1 MI SOUTH OF I-5, Tehama, CA
Built 1940 Load: 14.9 t ADT: 11,199
WALNUT ST
GoodOver: BRICKYARD CREEK
FRANKLIN ST IN RED BLUFF, Tehama, CA
Built 1935 Load: 14.9 t ADT: 9,853
JELLYS FERRY RD
GoodOver: BATTLE CREEK
TEHAMA/SHASTA CO LINE, Tehama, CA
Built 1984 Load: 14.9 t ADT: 184
MONTGOMERY AVENUE
GoodOver: BRANCH PUTAH CREEK
0.1 MI E OF C.R. #103, Yolo, CA
Built 1921 Load: 14.9 t ADT: 1,815
MAIN ST
GoodOver: ARROYO DEL HAMBRE
AT ESTUDILLO ST, Contra Costa, CA
Built 1925 Load: 15.2 t ADT: 5,500
TRAVERSE CREEK RD
GoodOver: LOWER TRAVERSE CREEK
2.54 MI E OF S.R. 193, El Dorado, CA
Built 1930 Load: 15.2 t ADT: 500
N. MAPLE AVE
GoodOver: MILL DITCH
NE/O SAN FELIPE RD, Fresno, CA
Built 1948 Load: 15.2 t ADT: 13,021
LOS GATOS ROAD
GoodOver: LOS GATOS CREEK
12.83 MI W OF DERRICK BL, Fresno, CA
Built 1949 Load: 15.2 t ADT: 200
TOMPKINS HILL ROAD
GoodOver: SALMON CREEK
0.8 MI SOUTH OF ROUTE 345, Humboldt, CA
Built 1929 Load: 15.2 t ADT: 179
FIRST STREET
GoodOver: CLOVER CREEK
0.1 MI E MAIN ST UPER LK, Lake, CA
Built 1930 Load: 15.2 t ADT: 400
223RD ST
GoodOver: ARTESIA-NORWALK STORM DN
0.1MI W/O NORWALK BLVD, Los Angeles, CA
Built 1956 Load: 15.2 t ADT: 2,222
NOKOMIS AVE
GoodOver: SAN ANSELMO CREEK
300 FT N MADRONE AVE, Marin, CA
Built 1930 Load: 15.2 t ADT: 400
U.S. HIGHWAY 101
GoodOver: LONG VALLEY CREEK
01-MEN-101-61.32, Mendocino, CA
Built 1960 Load: 15.2 t ADT: 6,700
FORD AVE
GoodOver: BREA CREEK CHANNEL
50' N/O CHAPMAN AVE, Orange, CA
Built 1922 Load: 15.2 t ADT: 1,556
HIGHLAND AVE
GoodOver: BREA CREEK CHANNEL
50' N/O CHAPMAN AVE, Orange, CA
Built 1922 Load: 15.2 t ADT: 8,500
BANDY CANYON ROAD
GoodOver: SANTA MARIA CREEK
0.6MI E/O YSABEL CREEK RD, San Diego, CA
Built 1980 Load: 15.2 t ADT: 200
QUAILWOOD LANE
GoodOver: LOS BERROS CREEK
BY LOS BERROS ROAD, San Luis Obispo, CA
Built 1932 Load: 15.2 t ADT: 10
CRYSTAL SPRINGS RD
GoodOver: SAN MATEO CREEK
N EL CERRITO AVE, San Mateo, CA
Built 1904 Load: 15.2 t ADT: 10,000
DELAWARE ST
GoodOver: SAN MATEO CREEK
SOUTH OF CYPRESS AVE, San Mateo, CA
Built 1910 Load: 15.2 t ADT: 8,530
HERRIMAN AVE
GoodOver: SARATOGA CREEK
NEAR LANNOY CT, Santa Clara, CA
Built 1935 Load: 15.2 t ADT: 3,891
VILA MARIA ENTRY R
GoodOver: STEVENS CREEK
0.3 MI S STEVENS CYN RD, Santa Clara, CA
Built 1930 Load: 15.2 t ADT: 250
WEST SAINT JOHN
GoodOver: GUADALUPE RIVER
BTWN AUTUMN ST & RIVER ST, Santa Clara, CA
Built 1935 Load: 15.2 t ADT: 2,140
STATE ROUTE 236
GoodOver: BOULDER CREEK
05-SCR-236-1.61, Santa Cruz, CA
Built 1921 Load: 15.2 t ADT: 4,350
FRANK COX ROAD
GoodOver: WESTLEY WASTEWAY
0.3 MI SW OF SR 33, Stanislaus, CA
Built 1948 Load: 15.2 t ADT: 946
HALL RD
GoodOver: UNNAMED CREEK
1.5 MI S OF SOUTH AVE, Tehama, CA
Built 1971 Load: 15.2 t ADT: 558
CANADA LARGA RD
GoodOver: CANADA LARGA
0.4 MI E RTE 33, Ventura, CA
Built 1928 Load: 15.2 t ADT: 150
BORDER CROSSING (C
GoodOver: NEW RIVER
0.2 MILES SOUTH OF WEST 2, Imperial, CA
Built 2018 Load: 15.4 t ADT: 29,500
SOUTH MAIN ST
GoodOver: LAS TRAMPAS CREEK
0.1 MI S OLYMPIC BLVD, Contra Costa, CA
Built 1919 Load: 15.6 t ADT: 17,700
CANAL RD
GoodOver: CONTRA COSTA CANAL
0.2 MI E BAILEY RD, Contra Costa, CA
Built 1939 Load: 15.6 t ADT: 10,900
CRYSTAL SPRINGS RD
GoodOver: E.I.D. CANAL
CARSON ROAD, El Dorado, CA
Built 1945 Load: 15.6 t ADT: 780
STATE ROUTE 168
GoodOver: BIG CREEK
06-FRE-168-64.12, Fresno, CA
Built 1955 Load: 15.6 t ADT: 1,300
E MANNING AVE
GoodOver: TRAVERS CREEK
0.6 MI W ALTA AVE, Fresno, CA
Built 1925 Load: 15.6 t ADT: 6,100
IRR COUNTY RD 306
GoodOver: DRY GULCH
25.76 MI N COLUSA CO LIN, Glenn, CA
Built 1930 Load: 15.6 t ADT: 142
SHERWOOD AVE
GoodOver: FRIANT-KERN CANAL
0.5 MI WEST OF ZACHARY AV, Kern, CA
Built 1949 Load: 15.6 t ADT: 640
WEST CHANNEL RD
GoodOver: RUSTIC CANYON CREEK
AT EAST RUSTIC RD, Los Angeles, CA
Built 1940 Load: 15.6 t ADT: 16,239
LA GRANGE ROAD
GoodOver: SOUTH FORK DRY CREEK
3.5 MI N MERCED FALLS RD, Merced, CA
Built 1921 Load: 15.6 t ADT: 1,912
INDIAN VALLEY ROAD
GoodOver: BIG SANDY CREEK
0.2 MI N BIG SANDY CRK RD, Monterey, CA
Built 1962 Load: 15.6 t ADT: 30
STATE ROUTE 29
GoodOver: YORK CREEK
04-NAP-029-29.29-SHLA, Napa, CA
Built 1902 Load: 15.6 t ADT: 20,000
VALLEY VIEW DR
GoodOver: BREA CREEK CHANNEL
50' E/O HARBOR BLVD, Orange, CA
Built 1940 Load: 15.6 t ADT: 2,000
TEMESCAL CANYON RD
GoodOver: TEMESCAL WASH
0.22 MI. W/O LAKE STREET, Riverside, CA
Built 1924 Load: 15.6 t ADT: 6,273
Showing 17,251-17,300 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.