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
HUSMAN ROAD
PoorOver: OUTSIDE CANAL
0.6 MI E WHITWORTH RD, Merced, CA
Built 1945 Load: 13.0 t ADT: 265
LOMPICO ROAD
PoorOver: LOMPICO CREEK
0.9 MI W ZAYANTE RD, Santa Cruz, CA
Built 1949 Load: 13.0 t ADT: 2,000
BLOOMFIELD RD
PoorOver: BLOOMFIELD CREEK
0.18 MI N VALLEY FORD RD, Sonoma, CA
Built 1917 Load: 13.0 t ADT: 524
CRABTREE ROAD
PoorOver: DRY CREEK
1.8 MI S WARNERVILLE RD, Stanislaus, CA
Built 1920 Load: 13.0 t ADT: 123
MEADOW WAY
PoorOver: SAN ANSELMO CREEK
0.1 MI SE OF CASCADE DR, Marin, CA
Built 1950 Load: 13.3 t ADT: 55
ISLAND ROAD
PoorOver: LITTLE TULE RIVER
2.3 MI N OF ARTHUR RD, Shasta, CA
Built 1950 Load: 13.3 t ADT: 100
COOPERSTOWN ROAD
PoorOver: RYDBERG CREEK
3.9 MI NW LA GRANGE RD, Stanislaus, CA
Built 1922 Load: 13.3 t ADT: 37
OPENSHAW RD
PoorOver: DRY CREEK
0.15 MI N SHIPPEE RD, Butte, CA
Built 1930 Load: 13.6 t ADT: 20
RD 305
PoorOver: SUSAN RIVER OVERFLOW #14
0.1 MI S/O US 395, Lassen, CA
Built 1977 Load: 13.6 t ADT: 100
BEACH RD (MAIN ST)
PoorOver: SAN FRANCISCO BAY
INTERSECTION BEACH & MAIN, Marin, CA
Built 1918 Load: 13.6 t ADT: 2,000
CARMEL VALLEY RD
PoorOver: TASH CREEK
4.5 MI N/W ARROYO SECO RD, Monterey, CA
Built 1959 Load: 13.6 t ADT: 290
NAT TRAILS HWY
PoorOver: AVILLA DITCH
0.50 MI E OF ESSEX RD, San Bernardino, CA
Built 1930 Load: 13.6 t ADT: 502
NEW JERSEY ST
PoorOver: MOREY ARROYO
0.45 MI N BARTON RD, San Bernardino, CA
Built 1933 Load: 13.6 t ADT: 3,475
TULLY ROAD
PoorOver: M.I.D. MAIN CANAL
0.1 N/O THIEMAN AV, Stanislaus, CA
Built 1924 Load: 13.6 t ADT: 3,434
CRANMORE RD
PoorOver: WESTSIDE CANAL
0.3 MI N FASIG RD, Sutter, CA
Built 1925 Load: 13.6 t ADT: 61
AVENUE 394
PoorOver: FRIANT-KERN CANAL
0.2 MI WEST OF ROAD 176, Tulare, CA
Built 1949 Load: 13.6 t ADT: 25
CHILD'S HILL ROAD
PoorOver: ROCK CREEK
8.8 MI SE OF HAMILTON RD, Del Norte, CA
Built 1950 Load: 13.9 t ADT: 10
STALNACKER ROAD
PoorOver: RESERVATION MAIN DRAIN
0.33 MI E/O AVE. 'G', Imperial, CA
Built 1950 Load: 13.9 t ADT: 200
RD 600
PoorOver: CROOKS CREEK
0.05 MI E RD 619, Madera, CA
Built 1965 Load: 13.9 t ADT: 560
RELIEF HILL RD
PoorOver: HUMBUG CREEK
NEAR GRANITEVILLE RD, Nevada, CA
Built 1952 Load: 13.9 t ADT: 27
YORK ROAD
PoorOver: WILLOW CREEK
0.2 MI E OF AIRPORT RD, Siskiyou, CA
Built 1930 Load: 13.9 t ADT: 39
MATTOLE RD
PoorOver: DOMINGO CREEK
21.2 MI N/O HONEYDEW, Humboldt, CA
Built 1926 Load: 14.3 t ADT: 183
HOLMES FLAT ROAD
PoorOver: LARABEE LOW LEVEL-EEL RI
NEAR HOLMES, Humboldt, CA
Built 1960 Load: 14.3 t ADT: 100
SHANK ROAD
PoorOver: EAST HIGHLINE CANAL
3 MI E/O BUTTERS RD, Imperial, CA
Built 1938 Load: 14.3 t ADT: 50
RECTOR RD
PoorOver: ROCK CREEK
1 MI N OF ROCK CREEK RD, Nevada, CA
Built 1915 Load: 14.3 t ADT: 62
OLD DUNCANS GRD RD
PoorOver: AUSTIN CREEK
BTN CZDERO HY&AUSTN CR RD, Sonoma, CA
Built 1924 Load: 14.3 t ADT: 30
WEST BUTTE RD
PoorOver: CHEROKEE DRAIN
AT NORTH BUTTE RD, Sutter, CA
Built 1920 Load: 14.3 t ADT: 97
16TH AVE
PoorOver: TULARE LAKE CANAL
0.3 MI N NEVADA AVE, Kings, CA
Built 1950 Load: 14.6 t ADT: 200
STATE ROUTE 140
PoorOver: SOUTH FORK MERCED RIVER
10-MPA-140-43.22, Mariposa, CA
Built 1926 Load: 14.6 t ADT: 1,400
CHUCKWALLA VLY RD
PoorOver: AZTEC DITCH
0.2 MI E/O CORN SPRNGS RD, Riverside, CA
Built 1931 Load: 14.6 t ADT: 40
PLEASANT WAY
PoorOver: SAN LORENZO RIVER
0.1 MI W OF SR 9, Santa Cruz, CA
Built 1949 Load: 14.6 t ADT: 400
SHIELDS ROAD
PoorOver: DELTA-MENDOTA CANAL
1.5 MI WEST OF EASTIN RD, Stanislaus, CA
Built 1949 Load: 14.6 t ADT: 50
WILLARD RD
PoorOver: BRANCH OF REEDS CREEK
LIVE OAK ROAD, Tehama, CA
Built 1960 Load: 14.6 t ADT: 140
MAXWELL-SITES RD
PoorOver: STONE CORRAL CREEK
8.8 MI W/O I-5, Colusa, CA
Built 1929 Load: 14.9 t ADT: 459
HANKINS ROAD
PoorOver: SPRING CREEK
0.8 MI NW FROM WALNUT DR, Colusa, CA
Built 1960 Load: 14.9 t ADT: 118
W LAGUNA AVE
PoorOver: CRESCENT DITCH
0.9 MI EAST OF BISHOP AVE, Fresno, CA
Built 1950 Load: 14.9 t ADT: 75
E LINCOLN AVE
PoorOver: TRAVERS CREEK
0.5 MI EAST OF ALTA AVE, Fresno, CA
Built 1940 Load: 14.9 t ADT: 450
REEVES CANYON ROAD
PoorOver: MILL CREEK
3.1 MI W SR 101, Mendocino, CA
Built 1981 Load: 14.9 t ADT: 105
MOUNTAIN VIEW RD
PoorOver: RANCHERIA CREEK
4.0 MI E/O RTE 128, Mendocino, CA
Built 1935 Load: 14.9 t ADT: 195
PRIEST VALLEY RD
PoorOver: LEWIS CREEK
0.15 MI E OF SH 198, Monterey, CA
Built 1948 Load: 14.9 t ADT: 200
HIRSCHDALE RD
PoorOver: TRUCKEE RIVER
AT HINTON, Nevada, CA
Built 1926 Load: 14.9 t ADT: 70
MEMORY LANE
PoorOver: SANTA ANA RIVER CHANNEL
0.1 MI. E/O CITY DRIVE, Orange, CA
Built 1936 Load: 14.9 t ADT: 18,900
DEL OBISPO STREET
PoorOver: TRABUCO CREEK CHANNEL
0.2 MI W/O CAMINO CPSTRN, Orange, CA
Built 1946 Load: 14.9 t ADT: 34,000
STATE ROUTE 62 WB
PoorOver: MISSION CHANNEL OVERFLOW
08-RIV-062-R5.62, Riverside, CA
Built 1966 Load: 14.9 t ADT: 9,000
CHUCKWALLA VLY RD
PoorOver: ACARI DITCH
6.3 MI E/O CORN SPRNGS RD, Riverside, CA
Built 1931 Load: 14.9 t ADT: 40
BIRD ROAD
PoorOver: DELTA-MENDOTA CANAL
0.2 MI N OF S.H. 132, San Joaquin, CA
Built 1950 Load: 14.9 t ADT: 471
WRIGHTS STATION RD
PoorOver: LOS GATOS CREEK
1.5 MI N/O MORRILL RD, Santa Clara, CA
Built 1917 Load: 14.9 t ADT: 110
LAKE VIEW ROAD
PoorOver: KLAMATH RIVER
SOUTH OF COPCO ROAD, Siskiyou, CA
Built 1960 Load: 14.9 t ADT: 226
DIEHL ROAD
PoorOver: DELTA-MENDOTA CANAL
0.5 MI WEST OF BELL ROAD, Stanislaus, CA
Built 1948 Load: 14.9 t ADT: 99
BELL ROAD
PoorOver: PIGEON CREEK
0.4 MI E/O SH 49, Amador, CA
Built 1925 Load: 15.2 t ADT: 26
Showing 25,901-25,950 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |