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
STATE ROUTE 253
FairOver: ROBINSON CREEK
01-MEN-253-15.06, Mendocino, CA
Built 1962 Load: 25.3 t ADT: 2,300
NAVARRO RIDGE ROAD
FairOver: HAY CREEK
3.6 MI E JCT SR 1, Mendocino, CA
Built 1980 Load: 25.3 t ADT: 417
STATE ROUTE 1
FairOver: BIG SUR RIVER
05-MON-001-46.60, Monterey, CA
Built 1940 Load: 25.3 t ADT: 4,050
KITTERMAN DRIVE
FairOver: SILVERADO CANYON CREEK
0.1 MI. S/O SLVRDO CYN RD, Orange, CA
Built 1970 Load: 25.3 t ADT: 200
W/B ALTON PARKWAY
FairOver: BNSF RY,AMTRAK,METROLINK
0.3 MI NE/O MUIRLAND BLVD, Orange, CA
Built 1981 Load: 25.3 t ADT: 17,000
DYSON LANE
FairOver: MID FK FEATHER RIV OVRFL
1.86 MI E BCKWTH-CLPIN RD, Plumas, CA
Built 1959 Load: 25.3 t ADT: 45
DYSON LANE
FairOver: MID FK FEATHER RIV OVRFL
1.9 MI E BCKWRTH-CALPN RD, Plumas, CA
Built 1959 Load: 25.3 t ADT: 45
DYSON LANE
FairOver: MID FK FEATHER RIV OVRFL
1.95 MI E BCKWTH-CLPIN RD, Plumas, CA
Built 1959 Load: 25.3 t ADT: 45
DYSON LANE
FairOver: MID FK FEATHER RIV OVRFL
2.30 MI E BCKWTH-CLPIN RD, Plumas, CA
Built 1959 Load: 25.3 t ADT: 45
HARRIET LANE
FairOver: MID FK FEATHER RIV OVRFL
1.1 MI S DYSON LN, Plumas, CA
Built 1963 Load: 25.3 t ADT: 125
LAKE DAVIS ROAD
FairOver: LAKE DAVIS SPILLWAY
7.1 MI N/O SH 70, Plumas, CA
Built 1966 Load: 25.3 t ADT: 300
AIRPORT BOULEVARD
FairOver: WHITEWATER RIVER
0.21 MI. W/O ST RTE 86S, Riverside, CA
Built 1951 Load: 25.3 t ADT: 5,000
ARBOR PARKWAY
FairOver: WHITTIER AVENUE CHANNEL
AT WHITTIER AVENUE, Riverside, CA
Built 1973 Load: 25.3 t ADT: 2,000
24TH ST
FairOver: ANDERSON DRAIN
0.1 MI S OF FLORIN RD, Sacramento, CA
Built 1965 Load: 25.3 t ADT: 17,907
PANOCHE ROAD
FairOver: LOS AGUILAS CREEK
14 MI W LITTLE PANOCHE RD, San Benito, CA
Built 1947 Load: 25.3 t ADT: 800
ANDERSON ST
FairOver: UP RR & AMTRAK
0.65 MI SOUTH I-10, San Bernardino, CA
Built 1968 Load: 25.3 t ADT: 2,595
TIPPECANOE AVE
FairOver: MISSION STORM DRAIN
0.6 MI N OF I-10, San Bernardino, CA
Built 1950 Load: 25.3 t ADT: 24,642
FARMINGTON ST
FairOver: CALIFORNIA AQUEDUCT
0.3 MI W OF 7TH AVE, San Bernardino, CA
Built 1971 Load: 25.3 t ADT: 50
NAT TRAILS HWY
FairOver: LANZIT DITCH
2.8 MI E/O KELBAKER RD, San Bernardino, CA
Built 2017 Load: 25.3 t ADT: 502
STATE ROUTE 4
FairOver: PRIVATE ACCESS
10-SJ-004-14.22, San Joaquin, CA
Built 1933 Load: 25.3 t ADT: 19,950
INTERSTATE 205
FairOver: SUGAR SPUR RR
10-SJ-205-R7.85-TRA, San Joaquin, CA
Built 1970 Load: 25.3 t ADT: 47,500
FRAIZER ROAD
FairOver: MOSHER CREEK
1.5 MI W OF CLEMENTS RD, San Joaquin, CA
Built 1956 Load: 25.3 t ADT: 221
MCKINLEY ROAD
FairOver: N BR FRENCH CAMP SLOUGH
1.0 MI N FRENCH CAMP/RD, San Joaquin, CA
Built 1923 Load: 25.3 t ADT: 4,300
STATE ROUTE 1 SB
FairOver: SANTA YNEZ RIVER
05-SB-001-22.52, Santa Barbara, CA
Built 1967 Load: 25.3 t ADT: 9,900
BONITA SCHOOL ROAD
FairOver: SANTA MARIA RIVER
0.3 MI N SR 166, Santa Barbara, CA
Built 2002 Load: 25.3 t ADT: 4,195
STATE ROUTE 152 EB
FairOver: SANTA CLARA CONDUIT DRN
04-SCL-152-R23.50, Santa Clara, CA
Built 1991 Load: 25.3 t ADT: 15,375
BLOSSOM HILL RD
FairOver: GUADALUPE RIVER
0.3 MI E ALMADEN EXP, Santa Clara, CA
Built 1948 Load: 25.3 t ADT: 20,400
FAIR OAKS AVE
FairOver: CALTRAIN,UP RR,HENDY AVE
SOUTH CENTRAL EXPWY, Santa Clara, CA
Built 1967 Load: 25.3 t ADT: 26,342
EAST ZAYANTE RD
FairOver: ZAYANTE CREEK
3.7 MI N GRAHAM HILL RD, Santa Cruz, CA
Built 1955 Load: 25.3 t ADT: 2,000
SALMON RIVER RD
FairOver: BUTLER CREEK
9.9 MI N/O SAWYERS BAR RD, Siskiyou, CA
Built 1938 Load: 25.3 t ADT: 101
INTERSTATE 80 EB
FairOver: CARQUINEZ STRAIT,UP RR
04-SOL-080-0.01, Solano, CA
Built 1958 Load: 25.3 t ADT: 128,000
D STREET
FairOver: PETALUMA RIVER
NEAR DOWNTOWN PETALUMA, Sonoma, CA
Built 1933 Load: 25.3 t ADT: 16,330
BOHAN DILLON RD
FairOver: SOUTH FORK GUALALA RIVER
0.8 MI N FORT ROSS RD, Sonoma, CA
Built 1971 Load: 25.3 t ADT: 50
VINEYARD ROAD
FairOver: DEL PUERTO CREEK
200 FT N/O LOQUAT AVE, Stanislaus, CA
Built 1935 Load: 25.3 t ADT: 949
STATE ROUTE 36
FairOver: SACRAMENTO RIVER
02-TEH-036-41.40-RBL, Tehama, CA
Built 1938 Load: 25.3 t ADT: 21,500
OSBORN RD
FairOver: MILL CREEK
3.40 MI N PASKENTA RD, Tehama, CA
Built 1960 Load: 25.3 t ADT: 20
TYLER ROAD
FairOver: COYOTE CREEK
0.4 MI N OF WESTOVER RD, Tehama, CA
Built 1968 Load: 25.3 t ADT: 1,200
PASKENTA RD
FairOver: REEDS CREEK
0.3 MI S WALNUT ST, Tehama, CA
Built 1993 Load: 25.3 t ADT: 2,545
STATE ROUTE 49
FairOver: MOCCASIN CREEK
10-TUO-049-4.47, Tuolumne, CA
Built 1952 Load: 25.3 t ADT: 765
INTERSTATE 505
FairOver: CACHE CREEK
03-YOL-505-11.67, Yolo, CA
Built 1959 Load: 25.3 t ADT: 11,000
COUNTY ROAD 158
FairOver: ELK SLOUGH
EAST OF STATE ROUTE 84, Yolo, CA
Built 1959 Load: 25.3 t ADT: 1,240
FORSYTHE RD
FairOver: INDIANA CREEK
3 MI N OF MARYSVILLE RD, Yuba, CA
Built 1975 Load: 25.3 t ADT: 100
CEDAR GROVE ROAD (
FairOver: SOUTH FORK KINGS RIVER
KINGS CANYON HWY MP 32.1, Fresno, CA
Built 1950 Load: 25.4 t ADT: 278
ROAD
FairOver: ELLIOTT CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1953 Load: 25.4 t ADT: 12
ROAD
FairOver: ELLIOTT CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1954 Load: 25.4 t ADT: 10
PINE GROVE-VOLCANO
FairOver: SUTTER CREEK
AT SUTTER CREEK RD, Amador, CA
Built 1950 Load: 25.6 t ADT: 1,734
BANGOR HWY
FairOver: ROCKY HUNCUT CREEK
2.5 MI N/O LA PORTE RD, Butte, CA
Built 1937 Load: 25.6 t ADT: 1,624
LAKEWEST DRIVE
FairOver: CALIFORNIA PARK LAKES
E OF BRUCE ROAD, Butte, CA
Built 1987 Load: 25.6 t ADT: 3,024
BALFOUR RD.
FairOver: MARSH CREEK
1.1 MI WEST OF SR 4, Contra Costa, CA
Built 1996 Load: 25.6 t ADT: 10,600
RELIEZ STATION RD
FairOver: LAS TRAMPAS CREEK
0.1 MI N OLYMPIC BLVD, Contra Costa, CA
Built 1937 Load: 25.6 t ADT: 900
Showing 10,851-10,900 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.