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
INTERSTATE 5
GoodOver: BRANFORD STREET
07-LA-005-36.86-LA, Los Angeles, CA
Built 1963 Load: 47.6 t ADT: 290,713
S405-LAKEWOOD-S405
GoodOver: VEHICLE ACCESS
07-LA-405-3.46-LBCH, Los Angeles, CA
Built 1964 Load: 47.6 t ADT: 32,204
INTERSTATE 210 EB
GoodOver: METROLINK
07-LA-210-R25.59-PAS, Los Angeles, CA
Built 1976 Load: 47.6 t ADT: 290,000
CAMINO REAL AVE
GoodOver: SANTA ANITA WASH
0.1MI W/O 10TH AVE, Los Angeles, CA
Built 1957 Load: 47.6 t ADT: 3,510
LOBO CYN RD E/XING
GoodOver: LOBO CRK
2.0MI S/O US-101 FWY, Los Angeles, CA
Built 1951 Load: 47.6 t ADT: 695
20TH ST
GoodOver: RIO LINDA CREEK
.2 MI S/O E ST, Sacramento, CA
Built 1984 Load: 47.6 t ADT: 1,700
CHURCH STREET
GoodOver: DEER CREEK CHANNEL
0.1 MI E OF HAVEN AVE, San Bernardino, CA
Built 1985 Load: 47.6 t ADT: 7,168
INTERSTATE 8 WB
GoodOver: CRESTWOOD ROAD
11-SD-008-R61.18L, San Diego, CA
Built 1974 Load: 47.6 t ADT: 8,000
CANYON RD
GoodOver: A.C.I.D. CANAL
0.2 MI SW OF SR 273, Shasta, CA
Built 1970 Load: 47.6 t ADT: 7,500
MAIN STREET
GoodOver: DUTCH BILL CREEK
MAIN STREET AT TYRONE, Sonoma, CA
Built 1975 Load: 47.6 t ADT: 1,600
RUSH CREEK ROAD
GoodOver: RUSH CREEK
4.6 MI SE OF SR 3, Trinity, CA
Built 1958 Load: 47.6 t ADT: 489
STATE ROUTE 1
GoodOver: TOPANGA CREEK
07-LA-001-40.99-MAL, Los Angeles, CA
Built 1933 Load: 48.0 t ADT: 43,250
INTERSTATE 210
GoodOver: HONOLULU AVE
07-LA-210-R15.75-GNDL, Los Angeles, CA
Built 1972 Load: 48.0 t ADT: 156,000
TAGLIO ROAD
GoodOver: OUTSIDE CNL & GARZAS CRK
0.6 MI WEST OF WHITWORTH, Merced, CA
Built 1974 Load: 48.0 t ADT: 200
IRR LKOUT-HKMORE R
GoodOver: PIT RIVER OVERFLOW
1.2 MI S C.R. 87, Modoc, CA
Built 1975 Load: 48.0 t ADT: 2,055
ROUTE 133 NB
GoodOver: SANTIAGO AQUEDUCT
12-ORA-133-13.37-IRVN, Orange, CA
Built 1998 Load: 48.0 t ADT: 47,200
INTERSTATE 15 SB
GoodOver: TEMESCAL CANYON ROAD
08-RIV-015-31.90, Riverside, CA
Built 1979 Load: 48.0 t ADT: 60,500
22ND ST
GoodOver: RIO LINDA CREEK
.1 MI S/O E ST, Sacramento, CA
Built 1984 Load: 48.0 t ADT: 1,300
INTERSTATE 5
GoodOver: SHASTA RIVER
02-SIS-005-R22.62, Siskiyou, CA
Built 1960 Load: 48.0 t ADT: 7,800
STATE ROUTE 116
GoodOver: ELLIS CREEK
04-SON-116-37.49, Sonoma, CA
Built 1972 Load: 48.0 t ADT: 12,000
STATE ROUTE 3
GoodOver: SUNFLOWER CREEK
02-TRI-003-77.93, Trinity, CA
Built 1971 Load: 48.0 t ADT: 200
STATE ROUTE 3
GoodOver: TRINITY RIVER
02-TRI-003-68.50, Trinity, CA
Built 1968 Load: 48.0 t ADT: 230
CRAZY PEAK ROAD
GoodOver: DUNN CREEK
12MI S & 2MI E OF 97523, Del Norte, CA
Built 1988 Load: 48.1 t ADT: 12
EB10-FAIRFAX OFFRP
GoodOver: BALLONA CREEK
07-LA-010-R9.12-LA, Los Angeles, CA
Built 1964 Load: 48.3 t ADT: 10,700
BOSTON AVE
GoodOver: VERDUGO WASH
0.2MI S/O I-10 FWY, Los Angeles, CA
Built 1957 Load: 48.3 t ADT: 1,326
INTERSTATE 15
GoodOver: UP RR & AMTRAK
08-SBD-015-2.15-ONT, San Bernardino, CA
Built 1978 Load: 48.3 t ADT: 198,000
VIVIENDA AVE
GoodOver: UP RR
0.35 MI W OF RTE 215, San Bernardino, CA
Built 1986 Load: 48.3 t ADT: 400
FOOTHILL BLVD
GoodOver: CUCAMONGA WASH
0.3 MI E/O BAKER AVE, San Bernardino, CA
Built 1979 Load: 48.3 t ADT: 30,700
SNTA RITA OLD CK R
GoodOver: PASO ROBLES CREEK
0.9 MI SWVINEYARD DR, San Luis Obispo, CA
Built 1971 Load: 48.3 t ADT: 538
U.S. HIGHWAY 101
GoodOver: VISTA DEL MAR UC
07-VEN-101-29.45-VEN, Ventura, CA
Built 1961 Load: 48.3 t ADT: 66,000
STATE ROUTE 99 SB
GoodOver: LITTLE DRY CREEK
03-BUT-099-22.95, Butte, CA
Built 1975 Load: 48.6 t ADT: 12,400
GARROW DRIVE
GoodOver: CONTRA COSTA CANAL
0.1 MI S OF DAVISON DR, Contra Costa, CA
Built 1991 Load: 48.6 t ADT: 4,500
INTERSTATE 5
GoodOver: VERDUGO AVE
07-LA-005-28.92-BRB, Los Angeles, CA
Built 1959 Load: 48.6 t ADT: 239,020
HARVEY WAY
GoodOver: PALO VERDE DRN
150FT W/O PALO VERDE AVE, Los Angeles, CA
Built 1977 Load: 48.6 t ADT: 4,374
TAMPA AVE
GoodOver: LOS ANGELES RIVER
0.1 MI N/O VICTORY BLVD, Los Angeles, CA
Built 1957 Load: 48.6 t ADT: 31,961
WHITES CYN RD
GoodOver: SANTA CLARA RIV
0.3MI S/O SOLEDAD CYN RD, Los Angeles, CA
Built 1991 Load: 48.6 t ADT: 29,799
BEASORE DR 434
GoodOver: CHILKOOT CREEK
3.7 MI N MALUM RIDGE RD, Madera, CA
Built 1974 Load: 48.6 t ADT: 720
DIABLO AVE
GoodOver: NOVATO CREEK
AT NOVATO BLVD, Marin, CA
Built 1966 Load: 48.6 t ADT: 25,882
INTERSTATE 8 WB
GoodOver: HORSETHIEF RD
11-SD-008-R39.62L, San Diego, CA
Built 1974 Load: 48.6 t ADT: 8,900
STATE ROUTE 76
GoodOver: LIVE OAK CREEK
11-SD-076-R14.76, San Diego, CA
Built 2017 Load: 48.6 t ADT: 26,000
STATE ROUTE 166
GoodOver: ALAMO CREEK
05-SLO-166-17.73, San Luis Obispo, CA
Built 1959 Load: 48.6 t ADT: 2,600
POZO ROAD
GoodOver: RINCONADA CREEK
LAS PILITAS RD, San Luis Obispo, CA
Built 1959 Load: 48.6 t ADT: 1,112
County Park Road
GoodOver: Stevens Creek
.1 M SO. OF MT EDEN ROAD, Santa Clara, CA
Built 1996 Load: 48.6 t ADT: 100
MASTERSON ROAD
GoodOver: EAST FORK SCOTT RIVER
2.4 MI W GAZELLE CALLAHAN, Siskiyou, CA
Built 1975 Load: 48.6 t ADT: 185
STATE ROUTE 116
GoodOver: RUSSIAN RIVER
04-SON-116-R5.73, Sonoma, CA
Built 1976 Load: 48.6 t ADT: 5,175
STATE ROUTE 2
GoodOver: FERN LANE
07-LA-002-R21.59-GNDL, Los Angeles, CA
Built 1978 Load: 48.9 t ADT: 115,000
COLORADO PL
GoodOver: ARCADIA WASH E
0.2MI NW/O W HNTNTN DR, Los Angeles, CA
Built 1957 Load: 48.9 t ADT: 9,888
CHINO HILLS PRKWY
GoodOver: MWD EASEMENT
0.2MI S/O SR-60 FWY, Los Angeles, CA
Built 1990 Load: 48.9 t ADT: 15,788
WALNUT ST
GoodOver: EATON WASH
0.3MI E/O N SAN GABRIEL, Los Angeles, CA
Built 2011 Load: 48.9 t ADT: 1,515
5TH STREET
GoodOver: CALIMESA CHANNEL
0.1 MI S/O COUNTY LINE RD, Riverside, CA
Built 1972 Load: 48.9 t ADT: 3,000
Showing 25,251-25,300 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 |