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
CHALET DR
FairOver: BEAR CREEK
W END ALPINE MEADOWS RD, Placer, CA
Built 1965 Load: 18.8 t ADT: 300
GRNVILE WOLF CK RD
FairOver: WOLF CREEK
150 FT SOUTH OF SH 89, Plumas, CA
Built 1961 Load: 18.8 t ADT: 10
NEW HOPE RD
FairOver: GRIZZLEY SLOUGH
0.5 MI N SA JOQUN CO LINE, Sacramento, CA
Built 1931 Load: 18.8 t ADT: 1,785
NAT TRAILS HWY
FairOver: WEST LUDLOW WASH
0.3 MI W OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 18.8 t ADT: 1
NATL TRAILS HWY
FairOver: VERDE WASH
0.8 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 18.8 t ADT: 108
BARTON RD
FairOver: UP RR
0.25 MI WEST OF I-215, San Bernardino, CA
Built 1929 Load: 18.8 t ADT: 10,420
STATE ROUTE 1
FairOver: SAN CARPOFORO CREEK
05-SLO-001-71.34, San Luis Obispo, CA
Built 1956 Load: 18.8 t ADT: 3,000
BUTANO CUT OFF
FairOver: PESCADERO CREEK
SOUTH PESCADERO RD, San Mateo, CA
Built 1964 Load: 18.8 t ADT: 357
QUAIL HOLLOW ROAD
FairOver: ZAYANTE CREEK
0.01 MI W OF E ZAYANTE RD, Santa Cruz, CA
Built 1949 Load: 18.8 t ADT: 3,000
INTERSTATE 5 SB
FairOver: EAST CYPRESS AVE
02-SHA-005-R14.44-RDG, Shasta, CA
Built 1965 Load: 18.8 t ADT: 26,500
BLAND ROAD
FairOver: NORTH FORK WILSON CREEK
2.32 MI S PLATINA RD, Shasta, CA
Built 1972 Load: 18.8 t ADT: 60
BEAR MOUNTAIN ROAD
FairOver: DEEP HOLE CREEK
100 FT S/O BERNARD WAY, Shasta, CA
Built 1940 Load: 18.8 t ADT: 2,632
SACRAMENTO DR
FairOver: OLNEY CREEK
0.5 MI E OF SR273, Shasta, CA
Built 1954 Load: 18.8 t ADT: 2,865
INTERSTATE 505 SB
FairOver: HORSE CREEK
04-SOL-505-R0.21-VAC, Solano, CA
Built 1946 Load: 18.8 t ADT: 16,750
WESTSIDE ROAD
FairOver: DRY CREEK
0.5 MI WEST OF US 101, Sonoma, CA
Built 1934 Load: 18.8 t ADT: 6,100
W THIRD ST
FairOver: SANTA ROSA CREEK
BTWN RBTS & WLSN, Sonoma, CA
Built 1935 Load: 18.8 t ADT: 14,600
LESLIE RD
FairOver: PORTER CREEK
.7M NW MARK WEST SPRGS RD, Sonoma, CA
Built 1972 Load: 18.8 t ADT: 63
FRANZ VALLEY ROAD
FairOver: FRANZ CREEK
2 MILES SW OF SR 128, Sonoma, CA
Built 1977 Load: 18.8 t ADT: 500
DRAPER ROAD
FairOver: NEWMAN WASTEWAY
0.7 MI S/O SHIELLS RD, Stanislaus, CA
Built 1950 Load: 18.8 t ADT: 276
VICTORY AVENUE
FairOver: S SAN JOAQUIN MAIN CANAL
0.4 MI N STATE RTE 120, Stanislaus, CA
Built 1931 Load: 18.8 t ADT: 729
LUCE GINSWOLD ROAD
FairOver: DRY FORK COTTONWOOD CRK
0.3 MI N BOWMAN RD, Tehama, CA
Built 1960 Load: 18.8 t ADT: 49
LEININGER ROAD
FairOver: DEER CREEK
1.0 MI N ORCHARD ROAD, Tehama, CA
Built 1930 Load: 18.8 t ADT: 232
CRAIG AVENUE
FairOver: CRAIG CREEK
0.45 MI NW OF ELECTRIC AV, Tehama, CA
Built 1937 Load: 18.8 t ADT: 110
SOUTH FORK ROAD
FairOver: PELLETREAU CREEK
2.3 MI N HYAMPOM RD, Trinity, CA
Built 1967 Load: 18.8 t ADT: 160
AVENUE 8
FairOver: FRIANT-KERN CANAL
AT ROAD 176, Tulare, CA
Built 1950 Load: 18.8 t ADT: 500
AVENUE 16
FairOver: FRIANT-KERN CANAL
0.5 MI WEST OF ROAD 184, Tulare, CA
Built 1950 Load: 18.8 t ADT: 25
S MOUNTAIN RD
FairOver: SANTA CLARA RIVER
0.2 MI S/O SR 126, Ventura, CA
Built 1953 Load: 18.8 t ADT: 2,900
STATE ROUTE 16
FairOver: CACHE CREEK
03-YOL-016-3.87, Yolo, CA
Built 1938 Load: 18.8 t ADT: 750
CASTLEWOOD DRIVE
FairOver: ARROYO DE LA LAGUNA
0.1 MI E/O FOOTHILL RD, Alameda, CA
Built 1927 Load: 19.0 t ADT: 5,200
HAPPY ISLES LOOP
FairOver: MERCED RIVER
Approximately 500' downst, Mariposa, CA
Built 1929 Load: 19.0 t ADT: 50
EL PORTAL ROAD
FairOver: EAST FORK CASCADE CREEK
5.1 miles east from El Po, Mariposa, CA
Built 1985 Load: 19.0 t ADT: 2,080
TYLER ROAD
FairOver: SOUTH FORK COSUMNES RIV
3.0 MI NE OF LAWRENCE RD, Amador, CA
Built 1945 Load: 19.1 t ADT: 56
OREGON GULCH RD
FairOver: OREGON GULCH CREEK
0.6 MI S OF CHEROKEE RD, Butte, CA
Built 1983 Load: 19.1 t ADT: 91
ROSE AVE
FairOver: BIG CHICO CREEK
AT BIDWELL AVENUE, Butte, CA
Built 1925 Load: 19.1 t ADT: 1,013
PERADA DR
FairOver: PINE CREEK
0.1 MI E CITRUS AVE, Contra Costa, CA
Built 1958 Load: 19.1 t ADT: 900
E SOUTH AVE
FairOver: FOWLER SWITCH CANAL
JUST EAST OF HIGHLAND AVE, Fresno, CA
Built 1948 Load: 19.1 t ADT: 500
N LEONARD AVE
FairOver: ENTERPRISE CANAL
0.16 MI SOUTH OF BULLARD, Fresno, CA
Built 1925 Load: 19.1 t ADT: 600
ELINOR ROAD
FairOver: GREENLOW CREEK
0.3 MILE NE OF ROUTE 254, Humboldt, CA
Built 1988 Load: 19.1 t ADT: 20
LACEY BLVD
FairOver: KINGS RIVER CLARKS FORK
0.3 MI W OF 23RD AVE, Kings, CA
Built 1974 Load: 19.1 t ADT: 400
MAIN ST
FairOver: TORRANCE LATERAL BR
0.1MI N/O CARSON ST, Los Angeles, CA
Built 1962 Load: 19.1 t ADT: 18,344
RIDGEWAY HWY CR249
FairOver: WHITNEY CREEK
4.4 MI N JCT EEL RIVER RD, Mendocino, CA
Built 1960 Load: 19.1 t ADT: 68
STATE ROUTE 59
FairOver: MARIPOSA CREEK
10-MER-059-10.38, Merced, CA
Built 1925 Load: 19.1 t ADT: 7,700
COTTON ROAD
FairOver: CCID MAIN CANAL
SPRUCE ROAD, Merced, CA
Built 1966 Load: 19.1 t ADT: 160
WARDROBE AVENUE
FairOver: SOUTH SLOUGH
0.6 MI EAST OF GURR ROAD, Merced, CA
Built 1930 Load: 19.1 t ADT: 400
HILLDALE AVENUE
FairOver: DELTA-MENDOTA CANAL
1.6 MI N OF SR 152, Merced, CA
Built 1952 Load: 19.1 t ADT: 9
BUCKEYE-ROBINSON
FairOver: ROBINSON CREEK
NO DATA ENTERED, Mono, CA
Built 1983 Load: 19.1 t ADT: 90
JOHNSON RD
FairOver: CARNEROS CREEK
0.1 MI S HALL RD, Monterey, CA
Built 1950 Load: 19.1 t ADT: 2,200
LA MIRADA BLVD.
FairOver: COYOTE CREEK CHANNEL
0.2 MI. NW/O BEACH BLVD., Orange, CA
Built 1950 Load: 19.1 t ADT: 24,000
OLD AUB FSTHILL RD
FairOver: NORTH FORK AMERICAN RIV
0.3 MI NE OF SR 49, Placer, CA
Built 1955 Load: 19.1 t ADT: 537
NELSON ST
FairOver: INDIAN CREEK
1.0 MI N ARLINGTON RD, Plumas, CA
Built 1941 Load: 19.1 t ADT: 280
Showing 9,151-9,200 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.