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
IRR BIA RTE 133
GoodOver: TURNBACK CREEK
1.48KM UP MIWU FROM INTER, Tuolumne, CA
Built 2020 Load: 42.1 t ADT: 30
STATE ROUTE 33
GoodOver: DERRY DALE CREEK
07-VEN-033-31.72, Ventura, CA
Built 1932 Load: 42.1 t ADT: 340
STATE HWY 58 WB
GoodOver: BNSF RY
09-KER-058-R141.49, Kern, CA
Built 1971 Load: 42.4 t ADT: 15,700
INTERSTATE 5
GoodOver: THE OLD ROAD
07-LA-005S-C45.86, Los Angeles, CA
Built 1975 Load: 42.4 t ADT: 101,280
MONTROSE AVE
GoodOver: HALLS CYN CHAN
0.3MI W/O OCEAN VIEW BLVD, Los Angeles, CA
Built 1936 Load: 42.4 t ADT: 5,459
CENTINELA AVE
GoodOver: CENTINELA CRK
100FT S/O SR-90 FWY, Los Angeles, CA
Built 1962 Load: 42.4 t ADT: 14,729
MRSHAL-PETALUMA RD
GoodOver: SALMON CREEK
6 MI EAST OF SR 1, Marin, CA
Built 1931 Load: 42.4 t ADT: 400
MEADOW WAY
GoodOver: SAN GERONIMO CREEK
0.5 MI S SIR FRNCS DRAKE, Marin, CA
Built 1965 Load: 42.4 t ADT: 100
STATE ROUTE 20
GoodOver: COLD CREEK
01-MEN-020-R39.65, Mendocino, CA
Built 1967 Load: 42.4 t ADT: 10,400
STATE ROUTE 1
GoodOver: HARE CREEK
01-MEN-001-59.67, Mendocino, CA
Built 1947 Load: 42.4 t ADT: 14,500
STATE ROUTE 299
GoodOver: RATTLESNAKE CREEK
02-MOD-299-37.80, Modoc, CA
Built 1980 Load: 42.4 t ADT: 3,000
STATE ROUTE 18
GoodOver: HILLSIDE
08-SBD-018-R17.81, San Bernardino, CA
Built 1965 Load: 42.4 t ADT: 8,600
STATE ROUTE 94
GoodOver: CAMPO CREEK
11-SD-094-46.91, San Diego, CA
Built 1947 Load: 42.4 t ADT: 1,950
STATE ROUTE 76
GoodOver: SAN LUIS REY RIVER
11-SD-076-47.08, San Diego, CA
Built 1955 Load: 42.4 t ADT: 2,050
WINTER GARDENS-S67
GoodOver: LOS COCHES CREEK
11-SD-067-R4.79, San Diego, CA
Built 1970 Load: 42.4 t ADT: 2,000
MORENA BLVD
GoodOver: TECOLOTE CREEK CHANNEL
15FT NW/O TECOLOTE RD, San Diego, CA
Built 1957 Load: 42.4 t ADT: 15,540
COLLYER ROAD
GoodOver: CHURN CREEK
200' E HAWLEY RD, Shasta, CA
Built 1974 Load: 42.4 t ADT: 300
DOTY ROAD
GoodOver: HAT CREEK
0.2 MI DUE EAST S.R. 89, Shasta, CA
Built 1971 Load: 42.4 t ADT: 200
TENNANT RD
GoodOver: BUTTE CREEK
4.4 MI SE SR97, Siskiyou, CA
Built 1981 Load: 42.4 t ADT: 67
CHALK HILL RD
GoodOver: FRANZ CREEK
3 MI SOUTH SR 128, Sonoma, CA
Built 1965 Load: 42.4 t ADT: 850
INTERSTATE 5 SB
GoodOver: BRANNIN CREEK
02-TEH-005-R5.50, Tehama, CA
Built 1966 Load: 42.4 t ADT: 12,300
ZENIA BLUFF RD
GoodOver: MUD CREEK
WEST OF ZENIA, Trinity, CA
Built 2003 Load: 42.4 t ADT: 140
U.S. HIGHWAY 101
GoodOver: VISTA DEL MAR UC
07-VEN-101-29.45-VEN, Ventura, CA
Built 1961 Load: 42.4 t ADT: 66,000
STATE ROUTE 113
GoodOver: WILLOW SLOUGH
03-YOL-113-R4.95, Yolo, CA
Built 1976 Load: 42.4 t ADT: 12,300
INTERSTATE 5 SB
GoodOver: CFNR SPUR
03-GLE-005-R10.36, Glenn, CA
Built 1966 Load: 42.8 t ADT: 13,000
INTERSTATE 5 NB
GoodOver: CFNR SPUR
03-GLE-005-R10.36, Glenn, CA
Built 1966 Load: 42.8 t ADT: 13,000
ROAD 65
GoodOver: DEAD DOG DRAW
0.8 MI W/O ROAD 'D', Glenn, CA
Built 1940 Load: 42.8 t ADT: 165
DINSMORE DRIVE
GoodOver: ROHNER CREEK
0.3 MI N INT WTH 12TH ST, Humboldt, CA
Built 1962 Load: 42.8 t ADT: 556
STATE ROUTE 111
GoodOver: ALAMO RIVER
11-IMP-111-29.51, Imperial, CA
Built 1971 Load: 42.8 t ADT: 6,600
STATE ROUTE 1
GoodOver: LAS FLORES CREEK
07-LA-001-44.15-MAL, Los Angeles, CA
Built 1926 Load: 42.8 t ADT: 43,250
STATE ROUTE 14
GoodOver: LOST CANYON ROAD UC
07-LA-014-32.53-SCTA, Los Angeles, CA
Built 1963 Load: 42.8 t ADT: 113,000
INTERSTATE 210
GoodOver: S BR BIG TUJUNGA WASH
07-LA-210-R10.53-LA, Los Angeles, CA
Built 1980 Load: 42.8 t ADT: 113,000
LANZIT AVE
GoodOver: COMPTON CREEK
0.1 MI W CENTRAL AVE, Los Angeles, CA
Built 1953 Load: 42.8 t ADT: 2,200
LASSEN ST
GoodOver: BULL CREEK
0.1 MI E HAYVENHURST AVE, Los Angeles, CA
Built 1956 Load: 42.8 t ADT: 21,100
GREELEY HILL ROAD
GoodOver: CUNEO CREEK
1.7 MI NE OF SR 49, Mariposa, CA
Built 1961 Load: 42.8 t ADT: 1,040
INTERSTATE 5 SB
GoodOver: ETCHEVERRY ROAD
10-MER-005-15.12, Merced, CA
Built 1971 Load: 42.8 t ADT: 15,500
INTERSTATE 5 NB
GoodOver: ETCHEVERRY ROAD
10-MER-005-15.12, Merced, CA
Built 1971 Load: 42.8 t ADT: 20,750
IRVINE BOULEVARD
GoodOver: MARSHBURN CHANNEL
0.05 MI S/O SR 133, Orange, CA
Built 1990 Load: 42.8 t ADT: 33,700
ITCHY ACRES RD
GoodOver: MINERS RAVINE
0.4 KM N JOE ROGERS RD, Placer, CA
Built 1980 Load: 42.8 t ADT: 961
PALM CANYON BLVD
GoodOver: PALM VALLEY CHANNEL
0.2 MI NW OF TOWN CENTER, Riverside, CA
Built 1964 Load: 42.8 t ADT: 31,000
INTERSTATE 40
GoodOver: WHALE MTN WASH
08-SBD-040-R152.12, San Bernardino, CA
Built 1966 Load: 42.8 t ADT: 7,450
LINN RD
GoodOver: NORTH BRANCH PADDY CREEK
0.4 MI S BRANDT RD, San Joaquin, CA
Built 1967 Load: 42.8 t ADT: 199
STATE ROUTE 1
GoodOver: EL JARO CREEK
05-SB-001-R4.38, Santa Barbara, CA
Built 1967 Load: 42.8 t ADT: 7,000
HARRIS GRADE ROAD
GoodOver: SAN ANTONIO CREEK
0.2 MI S OF SR 135, Santa Barbara, CA
Built 1984 Load: 42.8 t ADT: 1,555
STATE ROUTE 152
GoodOver: BODFISH CREEK
04-SCL-152-6.10, Santa Clara, CA
Built 1957 Load: 42.8 t ADT: 7,250
NO DATA ENTERED
GoodOver: WEST BRANCH INDIAN CK
INDIAN CREEK, Siskiyou, CA
Built 2010 Load: 42.8 t ADT: 32
INTERSTATE 505 NB
GoodOver: SWEENEY CREEK
04-SOL-505-R5.20, Solano, CA
Built 1974 Load: 42.8 t ADT: 12,000
INTERSTATE 5 SB
GoodOver: JEWETT CREEK
02-TEH-005-R8.75, Tehama, CA
Built 1966 Load: 42.8 t ADT: 13,500
ROAD 244
GoodOver: LEWIS CREEK
0.16 MI N OF AVE 220, Tulare, CA
Built 1970 Load: 42.8 t ADT: 250
AVE 320
GoodOver: KETCHUM DITCH
.18 MI W OF R196, Tulare, CA
Built 1958 Load: 42.8 t ADT: 125
Showing 24,901-24,950 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 |