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
US HIGHWAY 101 SB
GoodOver: MISSION CREEK
05-SB-101-13.93-SB, Santa Barbara, CA
Built 1992 Load: 38.2 t ADT: 54,500
CATHEDRAL OAKS RD
GoodOver: CARNEROS CREEK
0.15 MI W LOS CARNEROS R, Santa Barbara, CA
Built 1971 Load: 38.2 t ADT: 7,156
STATE ROUTE 280
GoodOver: LOS GATOS CREEK
04-SCL-280-R3.19-SJS, Santa Clara, CA
Built 1969 Load: 38.2 t ADT: 98,000
RANDOLPH RD
GoodOver: NEWTOWN CREEK
100' S OF OASIS RD, Shasta, CA
Built 1970 Load: 38.2 t ADT: 200
NO DATA ENTERED
GoodOver: SLATE CREEK
NO DATA ENTERED, Shasta, CA
Built 2019 Load: 38.2 t ADT: 50
U.S. HIGHWAY 395
GoodOver: LONG VALLEY RD
03-SIE-395-R2.23L, Sierra, CA
Built 1976 Load: 38.2 t ADT: 4,600
U.S. HIGHWAY 395
GoodOver: LONG VALLEY RD
03-SIE-395-R2.19R, Sierra, CA
Built 1976 Load: 38.2 t ADT: 2,300
CARIBOU ROAD
GoodOver: E FK OF S FK SALMON RIV
0.2 MI S CECILVILLE RD, Siskiyou, CA
Built 1965 Load: 38.2 t ADT: 100
QUARTZ VALLEY ROAD
GoodOver: SHACKLEFORD CREEK
AT DANGLE LANE, Siskiyou, CA
Built 2005 Load: 38.2 t ADT: 400
BROOKWOOD AVE
GoodOver: MATANZAS CR (BROOKWOOD)
BETN CLARK ST-SONOMA AVE, Sonoma, CA
Built 1951 Load: 38.2 t ADT: 9,400
BOHEMIAN HWY
GoodOver: SALMON CREEK
0.2 MI W BODEGA HWY, Sonoma, CA
Built 1971 Load: 38.2 t ADT: 1,850
MILL CREEK RD
GoodOver: MILL CREEK
4.5 MI W OF WESTSIDE RD, Sonoma, CA
Built 1961 Load: 38.2 t ADT: 200
STATE ROUTE 126
GoodOver: VCY RY
07-VEN-126-R7.95, Ventura, CA
Built 1965 Load: 38.2 t ADT: 48,000
WILLOW CREEK ROAD
GoodOver: DRY CREEK
1.6 MI N OF SH 124, Amador, CA
Built 1951 Load: 38.6 t ADT: 690
PINE ST
GoodOver: LITTLE CHICO CREEK
BTW HUMBOLDT AV & 12TH ST, Butte, CA
Built 1961 Load: 38.6 t ADT: 4,792
S DERRICK BLVD
GoodOver: LOS GATOS CREEK
0.3 MI NORTH OF GALE AVE, Fresno, CA
Built 1925 Load: 38.6 t ADT: 400
SPROWEL CREEK ROAD
GoodOver: SOUTH FORK EEL RIVER
1.4 MI SW OF INTER W/101, Humboldt, CA
Built 1982 Load: 38.6 t ADT: 1,085
HOLMES FLAT RD
GoodOver: LARABEE CREEK
2.5 MI E AVE OF GIANTS, Humboldt, CA
Built 1966 Load: 38.6 t ADT: 17
INTERSTATE 5 SB
GoodOver: GRAPEVINE ROAD
06-KER-005-10.16L, Kern, CA
Built 1960 Load: 38.6 t ADT: 24,375
SR 66 (FOOTHILL)
GoodOver: THOMPSON CREEK
07-LA-066-2.40-POM, Los Angeles, CA
Built 1964 Load: 38.6 t ADT: 18,200
INTERSTATE 210
GoodOver: TERRA BELLA STREET
07-LA-210-R7.16-LA, Los Angeles, CA
Built 1980 Load: 38.6 t ADT: 113,000
SEVENTH ST
GoodOver: BNSF RY, L A RIVER, UPRR
0.3 MI W/O US 101, Los Angeles, CA
Built 1927 Load: 38.6 t ADT: 26,666
WILLIAMS AVE.
GoodOver: Live Oak Cyn. Channel
0.5MI N/O FOOTHILL BLVD, Los Angeles, CA
Built 1914 Load: 38.6 t ADT: 204
INTERSTATE 5 NB
GoodOver: DELTA-MENDOTA CANAL
10-MER-005-19.55, Merced, CA
Built 1966 Load: 38.6 t ADT: 17,300
VILLA LANE
GoodOver: SILVERADO CREEK
0.35 MI N/O TRANCAS STR, Napa, CA
Built 1999 Load: 38.6 t ADT: 576
BECKWOURTH-GENESEE
GoodOver: CROCKER CREEK
6.8 MI NORTH OF RTE 70, Plumas, CA
Built 2016 Load: 38.6 t ADT: 200
INTERSTATE 10 EB
GoodOver: MILLARD CANYON WASH
08-RIV-010-R20.15, Riverside, CA
Built 1966 Load: 38.6 t ADT: 45,500
MARYSVILLE BLVD
GoodOver: ARCADE CREEK
0.25 MI N ARCADE BLVD, Sacramento, CA
Built 1967 Load: 38.6 t ADT: 18,557
INTERSTATE 8 EB
GoodOver: CRESTWOOD ROAD
11-SD-008-R61.15R, San Diego, CA
Built 1974 Load: 38.6 t ADT: 8,000
INTERSTATE 5 NB
GoodOver: GAFFERY ROAD
10-SJ-005-0.28R, San Joaquin, CA
Built 1967 Load: 38.6 t ADT: 28,500
99 FRONTAGE RD W
GoodOver: MOSHER SLOUGH
0.8 MI S OF 8 MILE ROAD, San Joaquin, CA
Built 1964 Load: 38.6 t ADT: 2,000
99 FRONTAGE RD E
GoodOver: MOSHER SLOUGH
0.8 MI S OF 8 MILE RD, San Joaquin, CA
Built 1964 Load: 38.6 t ADT: 4,312
U.S. HIGHWAY 101
GoodOver: UP RR SPUR
04-SM-101-21.80-SSF, San Mateo, CA
Built 1948 Load: 38.6 t ADT: 188,000
PUENTE DRIVE
GoodOver: ATASCADERO CREEK
0.36 MI S HOLLSTER AVE, Santa Barbara, CA
Built 1961 Load: 38.6 t ADT: 4,643
ASHLEY ROAD
GoodOver: COLD SPRINGS CREEK
0.6 MI NE OF VALLEY ROAD, Santa Barbara, CA
Built 2020 Load: 38.6 t ADT: 531
E. JULIAN STREET
GoodOver: COYOTE CREEK
0.5 MI W OF SH 101, Santa Clara, CA
Built 1933 Load: 38.6 t ADT: 14,320
INTERSTATE 80
GoodOver: PEDESTRIAN WALKWAY
04-SOL-080-17.27-FRFD, Solano, CA
Built 1961 Load: 38.6 t ADT: 177,000
BOWMAN ROAD
GoodOver: HOOKER CREEK
2.0 MI WEST OF I-5, Tehama, CA
Built 1969 Load: 38.6 t ADT: 6,186
US HIGHWAY 101 SB
GoodOver: VENTURA RIVER
07-VEN-101-30.94-VEN, Ventura, CA
Built 1962 Load: 38.6 t ADT: 44,500
SEVEN HILL RNCH RD
GoodOver: WALNUT CREEK
AT CHERRY LANE, Contra Costa, CA
Built 1965 Load: 38.9 t ADT: 2,200
STATE ROUTE 99 NB
GoodOver: BNSF RY & AMTRAK
06-FRE-099-16.55, Fresno, CA
Built 1963 Load: 38.9 t ADT: 48,000
STATE ROUTE 41 SB
GoodOver: CALIF,GOLDEN ST,G,BROAD
06-FRE-041-R22.11-FRE, Fresno, CA
Built 1966 Load: 38.9 t ADT: 38,000
INTERSTATE 5 NB
GoodOver: GRAPEVINE ROAD
06-KER-005-10.16R, Kern, CA
Built 1960 Load: 38.9 t ADT: 48,750
STATE ROUTE 58 WB
GoodOver: UP RR & BNSF RY
09-KER-058-R99.26, Kern, CA
Built 1970 Load: 38.9 t ADT: 10,000
ROUND MOUNTAIN RD
GoodOver: POSO CREEK
3.89 MI E BKFLD GLENVL RD, Kern, CA
Built 1957 Load: 38.9 t ADT: 200
STATE ROUTE 91
GoodOver: DOMINGUEZ CHANNEL
07-LA-091-6.03-LA, Los Angeles, CA
Built 1955 Load: 38.9 t ADT: 64,000
I-5 SUP ROUTE
GoodOver: EDENHURST AVENUE
07-LA-005S-25.52-LA, Los Angeles, CA
Built 1957 Load: 38.9 t ADT: 19,000
STATE ROUTE 14
GoodOver: OAK SPRINGS RD
07-LA-014-33.94, Los Angeles, CA
Built 1963 Load: 38.9 t ADT: 101,000
E FRK RD
GoodOver: SAN GABRIEL RIV EF
3.7MI E/O SAN GABRL CN RD, Los Angeles, CA
Built 1936 Load: 38.9 t ADT: 2,020
BOUQUET CYN RD
GoodOver: SANTA CLARA RIV
0.1MI N/O SOLDAD CYN RD, Los Angeles, CA
Built 1972 Load: 38.9 t ADT: 47,494
Showing 24,501-24,550 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 |