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
NORMAN AVE
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 35.0 t ADT: 1,020
SUNSET / PRSPT AVE
GoodOver: PICKENS CYN CHAN
0.2MI S/O FOOTHILL BLVD, Los Angeles, CA
Built 1936 Load: 35.0 t ADT: 1,853
VALENCIA BLD N
GoodOver: SANTA CLARA RIVSF
0.3MI N/O MGC MNT PRKWY, Los Angeles, CA
Built 1967 Load: 35.0 t ADT: 26,991
GRIFFIN AVE
GoodOver: UP RR,AMTRAK,ALHAMBRA AV
0.15 M N/O MISSION RD, Los Angeles, CA
Built 1980 Load: 35.0 t ADT: 7,228
STATE ROUTE 1
GoodOver: COTTONEVA CREEK
01-MEN-001-90.60, Mendocino, CA
Built 1958 Load: 35.0 t ADT: 810
STATE ROUTE 1
GoodOver: BIG CREEK
05-MON-001-28.09, Monterey, CA
Built 1938 Load: 35.0 t ADT: 2,000
STATE ROUTE 1
GoodOver: TEMBLADERO SLOUGH
05-MON-001-T91.99, Monterey, CA
Built 1976 Load: 35.0 t ADT: 23,350
CARMEL VALLEY RD
GoodOver: FINCH CREEK
12.3 MI N/W ARROYO SECO R, Monterey, CA
Built 1963 Load: 35.0 t ADT: 290
SR 73 NB
GoodOver: WILDLIFE PATHWAY
12-ORA-073-18.32-LGNB, Orange, CA
Built 1996 Load: 35.0 t ADT: 34,500
KING ROAD
GoodOver: SECRET RAVINE
0.9 MI E TAYLOR BLVD, Placer, CA
Built 1970 Load: 35.0 t ADT: 3,256
INTERSTATE 10 WB
GoodOver: BETA DITCH
08-RIV-010-R93.63, Riverside, CA
Built 1967 Load: 35.0 t ADT: 23,100
INTERSTATE 10 EB
GoodOver: BETA DITCH
08-RIV-010-R93.63, Riverside, CA
Built 1967 Load: 35.0 t ADT: 23,100
E50(I-305)-N51&S99
GoodOver: 26TH STREET
03-SAC-050-L2.20-SAC, Sacramento, CA
Built 1968 Load: 35.0 t ADT: 45,000
INTERSTATE 15 SB
GoodOver: TELEPHONE WASH
08-SBD-015-R110.36, San Bernardino, CA
Built 1964 Load: 35.0 t ADT: 22,000
STATE ROUTE 18
GoodOver: HILLSIDE
08-SBD-018-R16.96, San Bernardino, CA
Built 1970 Load: 35.0 t ADT: 16,000
BASE LINE RD EB
GoodOver: UP RR
2.55 MI W RTE I-215, San Bernardino, CA
Built 1967 Load: 35.0 t ADT: 9,767
INTERSTATE 5
GoodOver: VIA DE SAN YSIDRO
11-SD-005-R1.20-SD, San Diego, CA
Built 1973 Load: 35.0 t ADT: 40,000
MAGNOLIA AVE
GoodOver: SAN DIEGO RIVER
0.6M N/O MISSION GORGE RD, San Diego, CA
Built 1978 Load: 35.0 t ADT: 21,629
CLEMENTS RD
GoodOver: BRANCH BEAR CREEK
0.7 MI N ACAMPO RD, San Joaquin, CA
Built 1966 Load: 35.0 t ADT: 1,407
SARGENT RD
GoodOver: NORTH BRANCH PADDY CREEK
0.6 MI E JACKTONE RD, San Joaquin, CA
Built 1965 Load: 35.0 t ADT: 110
OAK GLEN AVE
GoodOver: LLAGAS CREEK
3.19 MI SE UVAS RD, Santa Clara, CA
Built 1940 Load: 35.0 t ADT: 1,710
N KING RD
GoodOver: UPPER PENITENCIA CREEK
BTWN BERRYESSA & MABURY, Santa Clara, CA
Built 1923 Load: 35.0 t ADT: 3,993
OBERLIN RD (YREKA)
GoodOver: YREKA CREEK
0.1 MI E/O FAIRLANE RD, Siskiyou, CA
Built 1959 Load: 35.0 t ADT: 1,839
PETERSBURG RD
GoodOver: SOUTH FORK SALMON RIVER
0.1 MI S CALHN-CECILVL RD, Siskiyou, CA
Built 1969 Load: 35.0 t ADT: 29
EB 80 - W TEXAS ST
GoodOver: LEDGEWOOD CREEK
04-SOL-080-17.02-FRFD, Solano, CA
Built 1949 Load: 35.0 t ADT: 4,622
INTERSTATE 5 SB
GoodOver: POVERTY FLAT RD(PRIVATE)
10-STA-005-2.48, Stanislaus, CA
Built 1967 Load: 35.0 t ADT: 17,500
INTERSTATE 5 NB
GoodOver: POVERTY FLAT RD(PRIVATE)
10-STA-005-2.48, Stanislaus, CA
Built 1967 Load: 35.0 t ADT: 17,500
COFFEE CREEK ROAD
GoodOver: COFFEE CREEK
8.8 MI WEST OF S.R. 3, Trinity, CA
Built 1977 Load: 35.0 t ADT: 76
ROAD M357
GoodOver: N FORK KAWEAH RIVER
3.24 MI N OF SR 198, Tulare, CA
Built 1967 Load: 35.0 t ADT: 150
RD 132
GoodOver: COTTONWOOD CREEK
0.4 MI N OF AVE 368, Tulare, CA
Built 1948 Load: 35.0 t ADT: 900
RAMP/CONNECTOR 23
GoodOver: TIERRA REJADA ROAD
07-VEN-023-R10.16-MRPK, Ventura, CA
Built 1970 Load: 35.0 t ADT: 3,500
HITCH BLVD
GoodOver: ARROYO LAS POSAS
0.3 MI S OF ST RTE 118, Ventura, CA
Built 1950 Load: 35.0 t ADT: 3,100
KOENIGSTEIN RD
GoodOver: BEAR CREEK
0.5 MI N/E S.R. 150, Ventura, CA
Built 1972 Load: 35.0 t ADT: 100
STATE ROUTE 32
GoodOver: KUSAL SLOUGH
03-BUT-032-1.97, Butte, CA
Built 1921 Load: 35.3 t ADT: 11,700
RICHVALE HWY
GoodOver: CHEROKEE CANAL
0.95 MI E MIDWAY RD, Butte, CA
Built 1960 Load: 35.3 t ADT: 1,191
SKYWAY
GoodOver: LTL CHICO-BUTTE CR DV CH
0.4 MI NW HUMBUG RD, Butte, CA
Built 1958 Load: 35.3 t ADT: 11,000
CANYON DRIVE
GoodOver: CANYON DRIVE CREEK
0.3 MI S/W ROYAL OAKS DR, Butte, CA
Built 1971 Load: 35.3 t ADT: 1,789
SOUTH FORK ROAD
GoodOver: SOUTH FORK SMITH RIVER
13.0 MI SE JCT SR199, Del Norte, CA
Built 2014 Load: 35.3 t ADT: 334
INTERSTATE 8 WB
GoodOver: DEVIL'S CANYON
11-IMP-008-R3.88L, Imperial, CA
Built 1963 Load: 35.3 t ADT: 7,105
STATE ROUTE 14
GoodOver: FREEMAN GULCH
09-KER-014-56.35, Kern, CA
Built 1947 Load: 35.3 t ADT: 4,400
STATE ROUTE 155
GoodOver: KERN RIVER
06-KER-155-70.08, Kern, CA
Built 1951 Load: 35.3 t ADT: 6,600
INTERSTATE 210
GoodOver: CHRISTY AVENUE
07-LA-210-R9.08-LA, Los Angeles, CA
Built 1980 Load: 35.3 t ADT: 113,000
STATE ROUTE 39
GoodOver: N FORK SAN GABRIEL RIVER
07-LA-039-R30.63, Los Angeles, CA
Built 1967 Load: 35.3 t ADT: 830
E118-S5 CONNECTOR
GoodOver: SHARP AVE
07-LA-118-R11.32R-LA, Los Angeles, CA
Built 1976 Load: 35.3 t ADT: 38,661
COVINA HILLS RD
GoodOver: WALNUT CRK
0.4MI E/O GRAND AVE, Los Angeles, CA
Built 1961 Load: 35.3 t ADT: 3,474
E FRK RD
GoodOver: HORSE CYN CRK
3.0MI E/O SAN GAB CYN RD, Los Angeles, CA
Built 1942 Load: 35.3 t ADT: 2,000
SUNSET/ HERMSA AVE
GoodOver: HALLS CYN CHAN
0.1MI N/O HONOLULU AVE, Los Angeles, CA
Built 1936 Load: 35.3 t ADT: 378
EVELYN ST
GoodOver: PICKENS CYN CHAN
0.4MI E/O ROSEMONT AVE, Los Angeles, CA
Built 1936 Load: 35.3 t ADT: 580
GREENLEAF CYN RD
GoodOver: TOPANGA CYN CRK
50FT W/O TOPANGA CYN BLVD, Los Angeles, CA
Built 1968 Load: 35.3 t ADT: 306
SANTA CLARA ST
GoodOver: SANTA ANITA WASH
0.2MI E/O SECOND AVE, Los Angeles, CA
Built 1971 Load: 35.3 t ADT: 3,648
Showing 24,051-24,100 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 |