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
ENCINITA AVE
FairOver: EATON WASH
0.8MI N/O VALLEY BLVD, Los Angeles, CA
Built 1956 Load: 42.4 t ADT: 3,366
40TH ST E
FairOver: CALIFORNIA AQUEDUCT
0.8MI S/O SR-138 HWY, Los Angeles, CA
Built 1968 Load: 42.4 t ADT: 7,645
ELM ST
FairOver: ACTA
25FT E/O ALAMEDA ST, Los Angeles, CA
Built 1999 Load: 42.4 t ADT: 4,539
SOLEDAD CYN RD
FairOver: BEE CYN WASH
5.5MI E/O SIGMA, Los Angeles, CA
Built 2002 Load: 42.4 t ADT: 4,794
U.S. HIGHWAY 395
FairOver: UP RR
02-MOD-395-R15.06, Modoc, CA
Built 1971 Load: 42.4 t ADT: 2,400
HUMBUG ROAD
FairOver: BUTT CREEK
1.2 MI W HUMBG-HUMBLT RD, Plumas, CA
Built 1960 Load: 42.4 t ADT: 35
DIXIE CNYN RD
FairOver: ROUND VALLEY LAKE OUTLET
2.9 MI SW OF SH 89, Plumas, CA
Built 1930 Load: 42.4 t ADT: 55
INTERSTATE 10 WB
FairOver: TARO DITCH
08-RIV-010-R99.06, Riverside, CA
Built 1967 Load: 42.4 t ADT: 23,000
INTERSTATE 10 EB
FairOver: TARO DITCH
08-RIV-010-R99.04, Riverside, CA
Built 1967 Load: 42.4 t ADT: 23,000
INTERSTATE 15 NB
FairOver: TEMESCAL CANYON ROAD
08-RIV-015-33.25, Riverside, CA
Built 1979 Load: 42.4 t ADT: 60,500
INTERSTATE 15 SB
FairOver: BROWN CANYON WASH
08-RIV-015-34.72, Riverside, CA
Built 1966 Load: 42.4 t ADT: 73,000
INTERSTATE 15 NB
FairOver: BROWN CANYON WASH
08-RIV-015-34.72, Riverside, CA
Built 1966 Load: 42.4 t ADT: 73,000
SAGE ROAD
FairOver: WILSON CREEK
1.6 MI. N/O ROUTE 79 HWY., Riverside, CA
Built 1990 Load: 42.4 t ADT: 1,038
INTERSTATE 15 SB
FairOver: METROLINK & BNSF RY
08-SBD-015-4.10-RCUC, San Bernardino, CA
Built 1975 Load: 42.4 t ADT: 98,000
WEST MORENA BLVD
FairOver: TECOLOTE CREEK CHANNEL
0.5MI N/O MORENA BLVD., San Diego, CA
Built 1957 Load: 42.4 t ADT: 14,366
INTERSTATE 5 SB
FairOver: FRENCH CAMP SLOUGH
10-SJ-005-R23.25, San Joaquin, CA
Built 1971 Load: 42.4 t ADT: 87,500
INTERSTATE 5 NB
FairOver: FRENCH CAMP SLOUGH
10-SJ-005-R23.25, San Joaquin, CA
Built 1971 Load: 42.4 t ADT: 43,750
STATE ROUTE 166
FairOver: ALISO CREEK
05-SB-166-R25.49, Santa Barbara, CA
Built 1969 Load: 42.4 t ADT: 2,700
SOLOMON ROAD
FairOver: ORCUTT CREEK
1.2 MI W BLOSSMER RD, Santa Barbara, CA
Built 1989 Load: 42.4 t ADT: 1,189
SANTA TERESA BLVD
FairOver: FISHER CREEK
BTWN KALANA/SAN BRUNO AVE, Santa Clara, CA
Built 1926 Load: 42.4 t ADT: 4,470
CALIFORNIA CIRCLE
FairOver: PENITENCIA CREEK
S/O DIXON LANDING RD, Santa Clara, CA
Built 1983 Load: 42.4 t ADT: 4,506
FOX ROAD
FairOver: HORSE CREEK
0.8 MI N OF HAWKINS RD, Solano, CA
Built 1966 Load: 42.4 t ADT: 57
US HIGHWAY 101 SB
FairOver: GEYSERVILLE AVENUE
04-SON-101-R40.78, Sonoma, CA
Built 1975 Load: 42.4 t ADT: 13,500
SANTA ROSA AVE
FairOver: N BRA LAG DE SANTA ROSA
NEAR SANTA ROSA AVE., Sonoma, CA
Built 1918 Load: 42.4 t ADT: 5,000
STATE ROUTE 36
FairOver: DE HAVEN GULCH
02-TEH-036-55.20, Tehama, CA
Built 1961 Load: 42.4 t ADT: 1,375
JELLY'S FERRY RD
FairOver: SPRING CREEK
2.6 MI EAST OF I-5, Tehama, CA
Built 1970 Load: 42.4 t ADT: 350
STATE ROUTE 113
FairOver: WILLOW SLOUGH
03-YOL-113-R4.95, Yolo, CA
Built 1976 Load: 42.4 t ADT: 12,300
N&S5-N110 CONNECTR
FairOver: ARROYO SECO CHANNEL
07-LA-005-20.33-LA, Los Angeles, CA
Built 1962 Load: 42.6 t ADT: 18,500
Interstate 5 & RR
FairOver: Shasta Lake
02-SHA-005-R28.14, Shasta, CA
Built 1941 Load: 42.6 t ADT: 19,500
J ST. (S BEALE RD)
FairOver: BRANCH OF HUTCHINSON CRE
0.25 MILES NORTH OF S. B, Yuba, CA
Built 2017 Load: 42.6 t ADT: 750
IMHOFF ROAD
FairOver: CENTRAL SANITARY RD
1.2 MI. W. OF SOLANO WAY, Contra Costa, CA
Built 1975 Load: 42.8 t ADT: 1,000
EXCELSIOR AVE
FairOver: FRESNO SLOUGH OVERFLOW
.2 MI W/O GRANTLAND AVE, Fresno, CA
Built 1975 Load: 42.8 t ADT: 90
STATE ROUTE 178
FairOver: KERN RIVER
06-KER-178-R40.00, Kern, CA
Built 1971 Load: 42.8 t ADT: 4,200
6TH AVE
FairOver: KINGS RIVER
0.2 MI S CLINTON AVE, Kings, CA
Built 1953 Load: 42.8 t ADT: 1,664
STATE ROUTE 175
FairOver: DRY CREEK
01-LAK-175-27.48, Lake, CA
Built 1952 Load: 42.8 t ADT: 3,150
CHAPPIUS LANE
FairOver: SUSAN RIVER
1.5 MI N OF SH 395, Lassen, CA
Built 1986 Load: 42.8 t ADT: 300
55TH ST
FairOver: ACTA
E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 42.8 t ADT: 7,019
IRR CO RD 87
FairOver: PIT RIVER SLOUGH
0.8 MI NE LKOUT HKMORE RD, Modoc, CA
Built 1955 Load: 42.8 t ADT: 255
HEBERT RD
FairOver: GABILAN CREEK
0.4 MI E SAN JUAN GRADE R, Monterey, CA
Built 1975 Load: 42.8 t ADT: 5,900
STATE ROUTE 65 SB
FairOver: PLEASANT GROVE CREEK
03-PLA-065-R8.76, Placer, CA
Built 1971 Load: 42.8 t ADT: 35,000
ROAD 21N02
FairOver: SULPHUR CREEK
SULPHUR CREEK, Plumas, CA
Built 1964 Load: 42.8 t ADT: 50
HELLMAN AVENUE
FairOver: CUCAMONGA CREEK CHANNEL
0.4 MI N 4TH ST, San Bernardino, CA
Built 1979 Load: 42.8 t ADT: 4,293
INTERSTATE 5 SB
FairOver: SAN ONOFRE CR,BEACH CLUB
11-SD-005-R70.97-OCN, San Diego, CA
Built 1968 Load: 42.8 t ADT: 65,000
INTERSTATE 5 NB
FairOver: SAN ONOFRE CR,BEACH CLUB
11-SD-005-R70.97-OCN, San Diego, CA
Built 1968 Load: 42.8 t ADT: 65,000
WASHINGTON AVE
FairOver: REIDY CREEK
0.4M E/O RTE 15, San Diego, CA
Built 1966 Load: 42.8 t ADT: 19,600
STATE ROUTE 132 W
FairOver: DELTA-MENDOTA CANAL
10-SJ-132-2.95, San Joaquin, CA
Built 1966 Load: 42.8 t ADT: 7,750
STATE ROUTE 132 E
FairOver: DELTA-MENDOTA CANAL
10-SJ-132-2.95, San Joaquin, CA
Built 1971 Load: 42.8 t ADT: 7,750
TEPUSQUET RD
FairOver: BUCKHORN CREEK
13.8 MI N FOXEN CANYON RD, Santa Barbara, CA
Built 1957 Load: 42.8 t ADT: 344
N680-KING OFFRAMP
FairOver: PARK SERVICE ROAD
04-SCL-680-M0.18-SJS, Santa Clara, CA
Built 1974 Load: 42.8 t ADT: 4,450
STATE ROUTE 129
FairOver: COWARD CREEK
05-SCR-129-2.56, Santa Cruz, CA
Built 1961 Load: 42.8 t ADT: 9,000
Showing 16,101-16,150 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.