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
TEMESCAL CANYON RD
FairOver: INDIAN WASH
0.2 MI. E/O INDIAN TRUCK, Riverside, CA
Built 1941 Load: 23.3 t ADT: 1,498
FRANKLIN BLVD
FairOver: MORRISON CREEK
0.3 MI S OF FLORIN RD, Sacramento, CA
Built 1955 Load: 23.3 t ADT: 24,780
CLUB CENTER DRIVE
FairOver: EAST DRAINAGE CANAL
EAST OF NATOMAS BLVD, Sacramento, CA
Built 2000 Load: 23.3 t ADT: 3,154
INTERSTATE 10 WB
FairOver: ETWNDA-SN SEVN FL CN CHN
08-SBD-010-11.64, San Bernardino, CA
Built 1953 Load: 23.3 t ADT: 95,000
INTERSTATE 215
FairOver: EAST BRANCH LYTLE CREEK
08-SBD-215-6.31-SBD, San Bernardino, CA
Built 1957 Load: 23.3 t ADT: 135,000
INTERSTATE 40
FairOver: MESQUITE WASH
08-SBD-040-147.25, San Bernardino, CA
Built 1967 Load: 23.3 t ADT: 7,200
STATE ROUTE 94
FairOver: DULZURA CREEK
11-SD-094-28.50, San Diego, CA
Built 1930 Load: 23.3 t ADT: 7,800
STATE ROUTE 79
FairOver: DESCANSO CREEK
11-SD-079-2.57, San Diego, CA
Built 1946 Load: 23.3 t ADT: 3,200
INTERSTATE 5
FairOver: CHOLLAS CREEK
11-SD-005-R12.73-SD, San Diego, CA
Built 1963 Load: 23.3 t ADT: 164,000
BUCKMAN SPRINGS RD
FairOver: COTTONWOOD CREEK
3.5 MI S/O ROUTE I-8, San Diego, CA
Built 1950 Load: 23.3 t ADT: 4,300
STATE ROUTE 1
FairOver: KOBBE AVE, HITCHCOCK ST
04-SF-001-6.67-SF, San Francisco, CA
Built 1939 Load: 23.3 t ADT: 64,000
MANTHEY ROAD
FairOver: PARADISE CUT
1.2 MI S/W STEWART RD, San Joaquin, CA
Built 1932 Load: 23.3 t ADT: 50
STATE ROUTE 227
FairOver: CORBETT CANYON CREEK
05-SLO-227-1.43-ARGD, San Luis Obispo, CA
Built 1914 Load: 23.3 t ADT: 3,350
KEHOE AVENUE
FairOver: 16TH AVENUE CHANNEL
WEST OF LODI AVE, San Mateo, CA
Built 1955 Load: 23.3 t ADT: 3,910
JALAMA ROAD
FairOver: SALSIPUEDES CREEK
WEST OF SR 1, Santa Barbara, CA
Built 1941 Load: 23.3 t ADT: 669
SUEY CROSSING RD
FairOver: SANTA MARIA RIVER
EAST OF SUEY PARK, Santa Barbara, CA
Built 2001 Load: 23.3 t ADT: 1,000
SANTA TERESA BLVD
FairOver: LLAGAS CREEK
0.5 MI SE WATSONVILLE RD, Santa Clara, CA
Built 1969 Load: 23.3 t ADT: 5,110
FERN DR
FairOver: SAN LORENZO RIVER
0.05 MI W OF SR 9, Santa Cruz, CA
Built 1950 Load: 23.3 t ADT: 400
STATE ROUTE 96
FairOver: TI CREEK
02-SIS-096-R11.99, Siskiyou, CA
Built 1967 Load: 23.3 t ADT: 330
STATE ROUTE 3
FairOver: SHASTA RIVER
02-SIS-003-51.76, Siskiyou, CA
Built 1959 Load: 23.3 t ADT: 2,900
STATE ROUTE 96
FairOver: CLEAR CREEK
02-SIS-096-32.60, Siskiyou, CA
Built 1966 Load: 23.3 t ADT: 400
SCARLETT WAY
FairOver: SACRAMENTO RIVER
0.2 MI NW DUNSMUIR AVE, Siskiyou, CA
Built 1970 Load: 23.3 t ADT: 59
STONE AVENUE
FairOver: M.I.D. LATERAL #5
0.4 MI S OF CALIF AVENUE, Stanislaus, CA
Built 1920 Load: 23.3 t ADT: 300
PLEASANT GROVE RD
FairOver: PLEASANT GROVE CR BRANCH
6 MI N SAC CO LINE, Sutter, CA
Built 1950 Load: 23.3 t ADT: 790
RAWSON RD
FairOver: COYOTE CREEK
0.6 MI N FLORES AVE, Tehama, CA
Built 1938 Load: 23.3 t ADT: 824
STATE ROUTE 198
FairOver: COUNTY ROAD 156
06-TUL-198-R13.74, Tulare, CA
Built 1964 Load: 23.3 t ADT: 26,000
M 220
FairOver: BEAR CREEK
6.7 MI E OF BALCH PARKRD, Tulare, CA
Built 1956 Load: 23.3 t ADT: 220
STATE ROUTE 23
FairOver: TIERRA REJADA ROAD
07-VEN-023-R10.16-MRPK, Ventura, CA
Built 1970 Load: 23.3 t ADT: 60,000
BLACKFORD RD
FairOver: BEAR R CAMP FARWEST WIER
NEAR PLACER CO LINE, Yuba, CA
Built 1916 Load: 23.3 t ADT: 540
BIG OAK FLAT ROAD
FairOver: WILDCAT CREEK
7.0 miles east from El Po, Mariposa, CA
Built 1939 Load: 23.6 t ADT: 2,530
ROAD
FairOver: JOE CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1954 Load: 23.6 t ADT: 10
STATE ROUTE 4
FairOver: MAINTENANCE ACCESS
04-CC-004-24.97-ANT, Contra Costa, CA
Built 1953 Load: 23.7 t ADT: 114,000
MONUMENT BLVD
FairOver: WALNUT CREEK
AT MOHR LANE, Contra Costa, CA
Built 1965 Load: 23.7 t ADT: 33,600
BRENTWOOD BLVD
FairOver: MARSH CREEK
0.1 M N/O KAYLA PL, Contra Costa, CA
Built 1928 Load: 23.7 t ADT: 17,900
NEWELL AVE
FairOver: SAN RAMON CREEK
0.1 MI E OF S MAIN ST, Contra Costa, CA
Built 1940 Load: 23.7 t ADT: 16,200
NICHOLS RD
FairOver: CONTRA COSTA CANAL
0.35 MI S OF PORT CHICAGO, Contra Costa, CA
Built 1945 Load: 23.7 t ADT: 75
W OLSON AVE
FairOver: KINGS RIVER
0.1 MI WEST OF REED AVE, Fresno, CA
Built 1975 Load: 23.7 t ADT: 5,375
N FOWLER AVE
FairOver: FANCHER CREEK CANAL
NORTH OF TULARE ST, Fresno, CA
Built 1959 Load: 23.7 t ADT: 22,391
STATE ROUTE 299
FairOver: RAMP ROAD
01-HUM-299-R4.04, Humboldt, CA
Built 1965 Load: 23.7 t ADT: 9,700
EAST FRONTAGE ROAD
FairOver: PEDESTRIAN WALKWAY
0.2 MI N 14TH ST, Humboldt, CA
Built 1976 Load: 23.7 t ADT: 2,000
URGUHART RD
FairOver: WESTSIDE MAIN CANAL
40 FT S/O CARTER, Imperial, CA
Built 1950 Load: 23.7 t ADT: 80
BROWN-INYOKERN RD
FairOver: LITTLE DIXIE WASH
2 MI S OF RTE 178, Kern, CA
Built 1945 Load: 23.7 t ADT: 1,200
WHITLEY AVE
FairOver: MIDDLE BRANCH CROSS CRK
0.5 MI EAST OF 10TH AVE, Kings, CA
Built 1940 Load: 23.7 t ADT: 2,268
INTERSTATE 5 SB
FairOver: THE OLD ROAD
07-LA-005S-C45.86, Los Angeles, CA
Built 1955 Load: 23.7 t ADT: 100,687
RAYMOND RD 415
FairOver: FRESNO RIVER
0.75 MI W/O RD 400, Madera, CA
Built 1971 Load: 23.7 t ADT: 3,993
CO RD 16
FairOver: FRESNO FLOOD CHANNEL
1.1 MI N OF AVE 14, Madera, CA
Built 1973 Load: 23.7 t ADT: 368
RD 12
FairOver: FRESNO FLOOD CHANNEL
1.0 MI N AVE 14, Madera, CA
Built 1974 Load: 23.7 t ADT: 10
CENTER VALLEY RD
FairOver: HAEHL CREEK
0.9 MI E SH 101, Mendocino, CA
Built 1953 Load: 23.7 t ADT: 1,166
STATE ROUTE 99 NB
FairOver: BEAR CREEK
10-MER-099-16.38-MER, Merced, CA
Built 1962 Load: 23.7 t ADT: 25,500
BUCKEYE CAMPGROUND
FairOver: BUCKEYE CREEK
NO DATA ENTERED, Mono, CA
Built 1978 Load: 23.7 t ADT: 150
Showing 9,851-9,900 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.