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
HICKS LANE
FairOver: MUD CREEK
1.2 MI S KEEFER RD, Butte, CA
Built 1900 Load: 11.0 t ADT: 744
LOWER WYANDOTTE RD
FairOver: BRANCH WYMAN RAVINE
1 MI S LAS PLUMAS AVE, Butte, CA
Built 1940 Load: 11.0 t ADT: 7,160
DOGTOWN RD
FairOver: SAN DOMINGO CREEK
4.5 MI NE/O SR 49, Calaveras, CA
Built 1940 Load: 11.0 t ADT: 84
SR 180 (KINGS CYN)
FairOver: FRIANT-KERN CANAL
06-FRE-180-79.30, Fresno, CA
Built 1947 Load: 11.0 t ADT: 4,375
N DEL REY AVE
FairOver: FRESNO CANAL
0.5 MI SOUTH OF MCKINLEY, Fresno, CA
Built 1939 Load: 11.0 t ADT: 700
BERRYESSA-KNOXVLLE
FairOver: ETICUERA CREEK
7.8 MI N/O POPE CYN ROAD, Napa, CA
Built 1920 Load: 11.0 t ADT: 370
SIERRA AVE
FairOver: UP RR & AMTRAK
0.1 MI S OF I-10, San Bernardino, CA
Built 1959 Load: 11.0 t ADT: 22,000
NAT TRAILS HWY
FairOver: SIBERIA DITCH
13.2 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.0 t ADT: 235
NAT TRAILS HWY
FairOver: TROJAN DITCH
16.8 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.0 t ADT: 235
STATE ROUTE 118
FairOver: KADOTA STREET
07-VEN-118-R28.31-SIMV, Ventura, CA
Built 1968 Load: 11.0 t ADT: 144,000
CENTRAL HOUSE RD
FairOver: WYMAN RAVINE
0.2 MI E OF SH70, Butte, CA
Built 1910 Load: 11.3 t ADT: 71
C.R. 210
FairOver: FINE GOLD CREEK
2.8 MI E OF CR 211, Madera, CA
Built 1920 Load: 11.3 t ADT: 65
REEVES CANYON ROAD
FairOver: MILL CREEK
4.6 MI W SR 101, Mendocino, CA
Built 1980 Load: 11.3 t ADT: 105
MICHIGAN BAR RD
FairOver: COSUMNES RIVER
1.2 MI N OF S.R. 16, Sacramento, CA
Built 1909 Load: 11.3 t ADT: 21
NAT TRAILS HWY
FairOver: SCARPA DITCH
22.2 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.3 t ADT: 230
LOWER GAS POINT RD
FairOver: NORTH FORK COTTONWOOD CR
0.5 MI N OF GAS PONT ROAD, Shasta, CA
Built 1920 Load: 11.3 t ADT: 10
FENDER FERRY
FairOver: DOG CREEK
NO DATA ENTERED, Shasta, CA
Built 1917 Load: 11.3 t ADT: 50
CANYON CREEK ROAD
FairOver: SCOTT RIVER
SCOTT BAR, Siskiyou, CA
Built 1958 Load: 11.3 t ADT: 50
FLORES AVE
FairOver: OAT CREEK
0.6 MI W/O 99W, Tehama, CA
Built 1937 Load: 11.3 t ADT: 980
AV 288 (MARINETTE)
FairOver: FRIANT-KERN CANAL
0.1 MI EAST OF ROAD 204, Tulare, CA
Built 1949 Load: 11.3 t ADT: 75
AVE 170 (N GRAND)
FairOver: FRIANT-KERN CANAL
0.25 MI EAST OF ROAD 224, Tulare, CA
Built 1949 Load: 11.3 t ADT: 475
EDGAR AVE
FairOver: COMANCHE CREEK
0.7 MI E OF CROUGH AVE, Butte, CA
Built 1930 Load: 11.7 t ADT: 21
CR306 (CAPEZOLLI)
FairOver: WHITEHEAD SLOUGH
0.3 MI E OF GALEPPI RD, Lassen, CA
Built 1950 Load: 11.7 t ADT: 100
NAT TRAILS HWY
FairOver: VERADO DITCH
14.4 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 230
NAT TRAILS HWY
FairOver: BANGOR DITCH
16.2 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 235
NAT TRAILS HWY
FairOver: DURANGO DITCH
17.2 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 235
NAT TRAILS HWY
FairOver: CINDER DITCH
17.5 MI E CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 235
NAT TRAILS HWY
FairOver: CASHIO DITCH
21.3 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 235
NAT TRAILS HWY
FairOver: EDLOFT DITCH
12.7 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 502
NAT TRAILS HWY
FairOver: AVIS DITCH
0.1 MI E OF ESSEX RD, San Bernardino, CA
Built 1930 Load: 11.7 t ADT: 502
SODA CREEK ROAD
FairOver: SODA CREEK
3.0 MI EAST OF I-5, Shasta, CA
Built 1930 Load: 11.7 t ADT: 2
LOUIE ROAD
FairOver: SHASTA RIVER
4.0 MI N/E OF I-5, Siskiyou, CA
Built 1935 Load: 11.7 t ADT: 45
ARNOLD DRIVE
FairOver: SONOMA CREEK
7.6 MI NORTH OF SR 116, Sonoma, CA
Built 1930 Load: 11.7 t ADT: 13,900
DOGTOWN RD
FairOver: FRENCH GULCH
3.9 MI N/O SR 49, Calaveras, CA
Built 1940 Load: 12.0 t ADT: 84
RANCHERIA ROAD
FairOver: MIDDLE CREEK
0.5 MI W ELK MOUNTAIN RD, Lake, CA
Built 1958 Load: 12.0 t ADT: 315
RD 304 (ALEXANDER)
FairOver: SOUTH FORK DILL SLOUGH
1.1 MI E/O ROAD 302, Lassen, CA
Built 1930 Load: 12.0 t ADT: 100
THE TOLEDO E
FairOver: RIVO ALTO CANAL
0.1MI E/O RAVENNA DR, Los Angeles, CA
Built 1967 Load: 12.0 t ADT: 1,020
THE TOLEDO, W
FairOver: RIVO ALTO CANAL
0.2MI W/O RAVENNA DR, Los Angeles, CA
Built 1967 Load: 12.0 t ADT: 1,836
MOORE RD
FairOver: AUBURN RAVINE
0.25 MI W FIDDYMENT RD, Placer, CA
Built 1930 Load: 12.0 t ADT: 387
CAMPGROUND RD
FairOver: JAMISON CREEK
PLUMAS-EUREKA STATE PARK, Plumas, CA
Built 1963 Load: 12.0 t ADT: 275
STOCKTON BLVD
FairOver: MORRISON CREEK
0.1 MI N OF FOWLER AVE, Sacramento, CA
Built 1924 Load: 12.0 t ADT: 23,306
NAT TRAILS HWY
FairOver: CERULIA DITCH
2.2 MI E OF AMBOY RD, San Bernardino, CA
Built 1930 Load: 12.0 t ADT: 805
NAT TRAILS HWY
FairOver: ZAGA DITCH
3.2 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 12.0 t ADT: 502
HINKLEY RD
FairOver: MOJAVE RIVER
0.75 MI N/O NAT'L TRAILS, San Bernardino, CA
Built 1950 Load: 12.0 t ADT: 405
BERTRAM ROAD
FairOver: ALAMITOS CREEK
NEAR ALMADEN ROAD, Santa Clara, CA
Built 1956 Load: 12.0 t ADT: 290
STATE ROUTE 96
FairOver: DILLON CREEK
02-SIS-096-R16.13, Siskiyou, CA
Built 1966 Load: 12.0 t ADT: 330
FAWN LODGE ROAD
FairOver: GRASS VALLEY CREEK
0.1 MI NORTH OF SR 299, Trinity, CA
Built 1959 Load: 12.0 t ADT: 50
AVE 192
FairOver: LAKELAND CANAL
0.3 MI W OF RD 20, Tulare, CA
Built 1960 Load: 12.0 t ADT: 300
SWEDES FLAT ROAD
FairOver: ROCKY HONCUT CREEK
2.6 MI E BANGOR HWY, Butte, CA
Built 1925 Load: 12.3 t ADT: 234
N VIAU AVE
FairOver: FRESNO CANAL
0.3 MI NORTH OF BELMONT, Fresno, CA
Built 1925 Load: 12.3 t ADT: 250
Showing 7,901-7,950 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.