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
SCARONI RD
FairOver: CENTRAL MAIN CANAL
0.5 MI N/O COLE RD, Imperial, CA
Built 1935 Load: 4.9 t ADT: 300
NAT TRAILS HWY
FairOver: MARBLE DITCH
5.9 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 4.9 t ADT: 502
BUTTE MTN RD
FairOver: ELMORE CREEK
LONG HOLLOW RD, Tehama, CA
Built 1927 Load: 4.9 t ADT: 20
E SHAW AVE
FairOver: FANCHER CREEK
1.1 MI EAST OF ACADEMY AV, Fresno, CA
Built 1947 Load: 5.2 t ADT: 900
ESQUILINE ROAD
FairOver: HITCHCOCK CANYON CREEK
AT SOUTHBANK ROAD, Monterey, CA
Built 1950 Load: 5.2 t ADT: 2,700
CHOLAME ROAD
FairOver: CHOLAME CREEK
5 MI S TURKEY FLAT ROAD, Monterey, CA
Built 1950 Load: 5.2 t ADT: 200
TALLY FARMS ROAD
FairOver: ARROYO GRANDE CREEK
6.9 MI N OF SR 101, San Luis Obispo, CA
Built 1964 Load: 5.2 t ADT: 100
HARBOR DRIVE
FairOver: NCTD,BNSF,AMTRAK,SCRRA
0.16MI W/O 1-5, San Diego, CA
Built 1975 Load: 5.5 t ADT: 12,600
EITHER WAY LANE
FairOver: SAN LORENZO RIVER
0.1 MI SW OF STATE RTE 9, Santa Cruz, CA
Built 1940 Load: 5.5 t ADT: 300
CHEZEM RD
FairOver: REDWOOD CREEK
1.5 MI E HIGHWAY 299, Humboldt, CA
Built 1916 Load: 5.8 t ADT: 78
EVAN HEWES HWY
FairOver: HAVELOCK DITCH
4.5 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 6.2 t ADT: 372
TRIMMER SPRINGS RD
FairOver: FRIANT-KERN CANAL
1.5 MI EAST OF BELMONT AV, Fresno, CA
Built 1946 Load: 6.5 t ADT: 1,800
RD 304
FairOver: WHITEHEAD SLOUGH
0.9 MI E/O RD 302, Lassen, CA
Built 1930 Load: 6.5 t ADT: 100
CACHAGUA ROAD
FairOver: CACHAGUA CREEK
2.3 MI W TASSAJARA ROAD, Monterey, CA
Built 1945 Load: 6.5 t ADT: 720
HORN LANE
FairOver: SCOTT RIVER
1.0 MI EAST OF SR 3, Siskiyou, CA
Built 1956 Load: 6.5 t ADT: 194
SEVENTH STREET
FairOver: TUOLUMNE RIVER
SOUTH TUOLUMNE BLVD, Stanislaus, CA
Built 1916 Load: 6.5 t ADT: 16,815
EVAN HEWES HWY
FairOver: ALVIRA DITCH
4.8 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 6.8 t ADT: 372
DYSON LANE
FairOver: MID FK FEATHER RIV OVRFL
2.4 MI E BCKWRTH-CALPN RD, Plumas, CA
Built 1908 Load: 6.8 t ADT: 40
CHUCKWALLA VLY RD
FairOver: SUTRO DITCH
3 MI. E/O CORN SPRINGS RD, Riverside, CA
Built 1931 Load: 6.8 t ADT: 40
NAT TRAILS HWY
FairOver: TRADA DITCH
22.0 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 6.8 t ADT: 230
ALDERCROFT HTS RD
FairOver: LOS GATOS CREEK
2.12 MI S LOS GATOS SC RD, Santa Clara, CA
Built 1956 Load: 6.8 t ADT: 30
GRAYBACK ROAD
FairOver: INDIAN CREEK
INDIAN, Siskiyou, CA
Built 1965 Load: 6.8 t ADT: 50
LOS VERJELES RD
FairOver: SOUTH HONCUT CREEK
AT BUTTE COUNTY LINE, Yuba, CA
Built 1940 Load: 6.8 t ADT: 730
MEHRING RD
FairOver: MOHAVE LATERAL CANAL
1.9 MI E/O YORK RD, Imperial, CA
Built 1950 Load: 7.1 t ADT: 250
STATE ROUTE 60
FairOver: UP RR/SUNNYSLOPE OH
08-RIV-060-7.93, Riverside, CA
Built 1962 Load: 7.1 t ADT: 155,000
NAT TRAILS HWY
FairOver: CHAMBLESS DITCH
5.4 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 7.1 t ADT: 502
N ACADEMY AVE
FairOver: FRIANT-KERN CANAL
1MI NORTH OF HERNDON AVE, Fresno, CA
Built 1946 Load: 7.5 t ADT: 1,200
AVENUE 16.5
FairOver: DRY CREEK
AT ROAD 19, Madera, CA
Built 1950 Load: 7.5 t ADT: 105
PORT WINE ROAD
FairOver: SLATE CREEK
2.1 MI SE/O QUIN-LAPOR R, Plumas, CA
Built 1910 Load: 7.5 t ADT: 50
NAT TRAILS HWY
FairOver: LARISSA DITCH
1.1 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 7.5 t ADT: 502
SAN LORENZO WAY
FairOver: SAN LORENZO RIVER
N OF GRAHAM HILL RD, Santa Cruz, CA
Built 1920 Load: 7.5 t ADT: 500
BOUCHER STREET
FairOver: LITTLE CHICO CREEK
JUST S OF HUMBOLDT AVE, Butte, CA
Built 1920 Load: 7.8 t ADT: 1,161
LUMPKIN-LAPORTE RD
FairOver: FALL RIVER
10.5 MI N/E FEATHER FALLS, Butte, CA
Built 1930 Load: 7.8 t ADT: 71
MIDDLE BAR RD
FairOver: MOKELUMNE RIVER
3.0 MI S OF RTE 49, Calaveras, CA
Built 1912 Load: 7.8 t ADT: 23
WATTS VALLEY ROAD
FairOver: FRIANT-KERN CANAL
1.1 MI E OF RIVERBEND, Fresno, CA
Built 1947 Load: 7.8 t ADT: 500
E CLAYTON AVE
FairOver: TRAVERS CREEK
0.29 MI. EAST OF ALTA AVE, Fresno, CA
Built 1941 Load: 7.8 t ADT: 200
NAT TRAILS HWY
FairOver: NICOLA DITCH
20.6 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 7.8 t ADT: 502
S END ALBERTON AVE
FairOver: LITTLE CHICO CREEK
1.0 MI S/O CHICO RIVER RD, Butte, CA
Built 1965 Load: 8.1 t ADT: 87
NAT TRAILS HWY
FairOver: TERRA DITCH
3.6 MI E OF AMBOY RD, San Bernardino, CA
Built 1930 Load: 8.1 t ADT: 790
GUYNN AVE
FairOver: LINDO CHANNEL
N OF W LINDO AVE, Butte, CA
Built 1930 Load: 8.4 t ADT: 669
BLOOMFIELD RD
FairOver: SOUTH YUBA RIVER
1.5 MI N ROCK CREEK RD, Nevada, CA
Built 1904 Load: 8.4 t ADT: 143
BRIGGS ROAD
FairOver: RED BANK CREEK
0.1 MI N RED BANK RD, Tehama, CA
Built 1984 Load: 8.4 t ADT: 20
WALDO RD
FairOver: DRY CREEK
1.9 MI S CHUCK YEAGER RD, Yuba, CA
Built 1901 Load: 8.4 t ADT: 220
TIMBUCTOO ROAD
FairOver: DEEP RAVINE NO 2
0.1 MI N/W OF SR 20, Yuba, CA
Built 1903 Load: 8.4 t ADT: 50
DIXIE ROAD
FairOver: CAMP CREEK
3.3 CAMP CRK & 2.4 DIXIE, Butte, CA
Built 1925 Load: 8.7 t ADT: 20
MT MURPHY RD
FairOver: SOUTH FK AMERICAN RIVER
0.1 MI E OF SR 49, El Dorado, CA
Built 1915 Load: 8.7 t ADT: 284
C. R. 800
FairOver: SPECIMEN SPRINGS
0.1 MI E OF CR 820, Madera, CA
Built 1958 Load: 8.7 t ADT: 62
NAT TRAILS HWY
FairOver: BEACON DITCH
6.2 MI E OF AMBOY RD, San Bernardino, CA
Built 1930 Load: 8.7 t ADT: 805
NAT TRAILS HWY
FairOver: IZZY DITCH
24.2 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 8.7 t ADT: 502
ROAD 204 (SPRUCE)
FairOver: FRIANT-KERN CANAL
0.5 MI SOUTH OF SR 198, Tulare, CA
Built 1949 Load: 8.7 t ADT: 3,200
Showing 7,801-7,850 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.