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
LAKE HUGHES RD
GoodOver: CASTAIC CRK
0.6MI E/O I-5 FWY, Los Angeles, CA
Built 1966 Load: 34.7 t ADT: 1,530
NORTH SPRING ST
GoodOver: LOS ANGELES RIVER, UP RR
0.4 MI WEST OF I-5, Los Angeles, CA
Built 1928 Load: 34.7 t ADT: 18,808
PHILLIPS BLVD
GoodOver: SAN ANTONIO WASH
0.3MI E/O RESERVOIR ST, Los Angeles, CA
Built 1962 Load: 34.7 t ADT: 4,874
BALBOA BLVD (NB)
GoodOver: LOS ANGELES RIVER
0.6 MI S. VICTORY BLVD, Los Angeles, CA
Built 1941 Load: 34.7 t ADT: 14,800
HAYVENHURST ST
GoodOver: BULL CREEK
PLUMMER, Los Angeles, CA
Built 1974 Load: 34.7 t ADT: 12,000
HUMANE WAY
GoodOver: UP RR, SAN JOSE CRK SF
0.3MI N/O MISSION BLVD, Los Angeles, CA
Built 1970 Load: 34.7 t ADT: 11,500
LYANS DR
GoodOver: HALLS CYN CHAN
0.1MI E/O CASTLE RD, Los Angeles, CA
Built 1936 Load: 34.7 t ADT: 1,479
INTERSTATE 5 SB
GoodOver: BILLY WRIGHT ROAD
10-MER-005-16.72, Merced, CA
Built 1971 Load: 34.7 t ADT: 15,500
INTERSTATE 5 NB
GoodOver: BILLY WRIGHT ROAD
10-MER-005-16.72, Merced, CA
Built 1971 Load: 34.7 t ADT: 17,300
BELL DRIVE
GoodOver: ATWATER CANAL
0.1 MI W BERT CRANE RD, Merced, CA
Built 2012 Load: 34.7 t ADT: 1,021
INTERSTATE 10
GoodOver: COLORADO RIVER
08-RIV-010-R156.38-BLY, Riverside, CA
Built 1960 Load: 34.7 t ADT: 60,000
INTERSTATE 215
GoodOver: SAN JACINTO RIV OVERFLOW
08-RIV-215-24.91-PER, Riverside, CA
Built 1953 Load: 34.7 t ADT: 104,000
STATE HIGHWAY 330
GoodOver: PALO ALTO WAY
08-SBD-330-43.99, San Bernardino, CA
Built 1951 Load: 34.7 t ADT: 11,500
INTERSTATE 15 SB
GoodOver: OPAH DITCH
08-SBD-015-R126.86, San Bernardino, CA
Built 1965 Load: 34.7 t ADT: 23,500
INTERSTATE 15 NB
GoodOver: OPAH DITCH
08-SBD-015-R126.86, San Bernardino, CA
Built 1965 Load: 34.7 t ADT: 23,500
STATE HIGHWAY 138
GoodOver: CAJON CREEK
08-SBD-138-R14.94, San Bernardino, CA
Built 1969 Load: 34.7 t ADT: 18,500
STATE HIGHWAY 138
GoodOver: SAWPIT CANYON
08-SBD-138-R28.07, San Bernardino, CA
Built 1970 Load: 34.7 t ADT: 1,500
STATE HIGHWAY 138
GoodOver: BURNT MILL CANYON
08-SBD-138-R29.38, San Bernardino, CA
Built 1970 Load: 34.7 t ADT: 1,500
STATE ROUTE 18
GoodOver: HILLSIDE
08-SBD-018-R16.69, San Bernardino, CA
Built 1970 Load: 34.7 t ADT: 16,000
INTERSTATE 8 WB
GoodOver: CAMERON STA-KITCHN CR RD
11-SD-008-R52.00, San Diego, CA
Built 1974 Load: 34.7 t ADT: 8,350
HARDING ST
GoodOver: ESCONDIDO CREEK
0.1 MI N VALLEY PARKWAY, San Diego, CA
Built 1988 Load: 34.7 t ADT: 5,600
JACK TONE RD
GoodOver: DUCK CREEK
0.8 MI N OF S.H.4, San Joaquin, CA
Built 1961 Load: 34.7 t ADT: 3,392
ALPINE RD
GoodOver: BEAR CREEK
0.4 MI S LIVE OAK RD, San Joaquin, CA
Built 1963 Load: 34.7 t ADT: 1,239
CRESTON RD
GoodOver: HUER HUERO CREEK
0.1 MI S GENESEO RD, San Luis Obispo, CA
Built 1960 Load: 34.7 t ADT: 1,731
STATE ROUTE 1 SB
GoodOver: SAN ANTONIO CREEK
05-SB-001-M33.10, Santa Barbara, CA
Built 1966 Load: 34.7 t ADT: 6,900
HAWKINS CREEK
GoodOver: DEER CREEK
NO DATA ENTERED, Shasta, CA
Built 1965 Load: 34.7 t ADT: 50
STATE ROUTE 113
GoodOver: BARKER SLOUGH
04-SOL-113-6.58, Solano, CA
Built 1966 Load: 34.7 t ADT: 4,100
STATE ROUTE 12
GoodOver: BRIGHAM AVE
04-SON-012-R17.10-SRO, Sonoma, CA
Built 1969 Load: 34.7 t ADT: 30,000
DUTTON MEADOW
GoodOver: COLGAN CR FLD CNTRL CHNL
NEAR BELLEVUE AVE., Sonoma, CA
Built 1964 Load: 34.7 t ADT: 300
PASKENTA ROAD
GoodOver: NORTH COYOTE CREEK
1.2 MI N OF DUSTY, Tehama, CA
Built 1980 Load: 34.7 t ADT: 200
EAST FORK ROAD
GoodOver: NORTH FORK TRINITY RIVER
1.1 MI NORTH S.R. 299, Trinity, CA
Built 1967 Load: 34.7 t ADT: 200
AVE 312
GoodOver: PACKWOOD CREEK
0.1 MI E OF RD 180, Tulare, CA
Built 1956 Load: 34.7 t ADT: 300
US HIGHWAY 101 NB
GoodOver: VENTURA RIVER
07-VEN-101-30.94-VEN, Ventura, CA
Built 1962 Load: 34.7 t ADT: 44,500
SR 118 WB
GoodOver: CALDWELL AVE (CLOSED)
07-VEN-118-R24.15-SIMV, Ventura, CA
Built 1970 Load: 34.7 t ADT: 57,000
STATE ROUTE 70
GoodOver: N FK FEATHER RIVER
03-BUT-070-40.99, Butte, CA
Built 1932 Load: 35.0 t ADT: 1,450
STATE ROUTE 20
GoodOver: SALT CREEK
03-COL-020-20.21, Colusa, CA
Built 1959 Load: 35.0 t ADT: 5,800
WEST LELAND RD
GoodOver: CONTRA COSTA CANAL
1.5 MI E BAILEY RD, Contra Costa, CA
Built 1976 Load: 35.0 t ADT: 7,500
W NEES AVE
GoodOver: OUTSIDE CANAL
AT (E/O) WASHOE AVE, Fresno, CA
Built 1960 Load: 35.0 t ADT: 3,600
STATE ROUTE 119
GoodOver: BUENA VISTA CREEK
06-KER-119-6.32, Kern, CA
Built 1959 Load: 35.0 t ADT: 7,400
N99-AIRPORT DR OFF
GoodOver: BUCK OWEN, CALLOWAY CNL
06-KER-099-26.70, Kern, CA
Built 1963 Load: 35.0 t ADT: 14,300
STATE ROUTE 41
GoodOver: EMPIRE # 2 CANAL
06-KIN-041-33.79, Kings, CA
Built 1948 Load: 35.0 t ADT: 6,560
JACKSON AVE
GoodOver: CROSS CREEK
0.9 MI W OF 5TH AVE, Kings, CA
Built 1975 Load: 35.0 t ADT: 450
INTERSTATE 110
GoodOver: UP RR SPUR
07-LA-110-2.50-LA, Los Angeles, CA
Built 1956 Load: 35.0 t ADT: 93,900
SR 118 WB
GoodOver: LAUREL CANYON BLVD
07-LA-118-R11.57L-LA, Los Angeles, CA
Built 1976 Load: 35.0 t ADT: 66,750
STATE ROUTE 14
GoodOver: AVENUE "J-8"
07-LA-014-R67.37-LAN, Los Angeles, CA
Built 1972 Load: 35.0 t ADT: 31,000
ACCESS ROAD
GoodOver: BALLONA CREEK
07-LA-010-R9.13-LA, Los Angeles, CA
Built 1964 Load: 35.0 t ADT: 1
AZUSA AVE
GoodOver: WALNUT CRK
0.2MI N/O CAMERON AVE, Los Angeles, CA
Built 1967 Load: 35.0 t ADT: 42,405
OSBORNE ST
GoodOver: PACOIMA WASH DIV CHANNEL
0.1 MI SW ARLETA AVE, Los Angeles, CA
Built 1954 Load: 35.0 t ADT: 35,426
CYPRESS ST
GoodOver: BIG DALTON WASH
0.5MI W/O VINCENT AVE, Los Angeles, CA
Built 1959 Load: 35.0 t ADT: 5,545
BURNSIDE AVE
GoodOver: BALLONA CREEK
AT COLOGNE ST, Los Angeles, CA
Built 1974 Load: 35.0 t ADT: 550
Showing 24,001-24,050 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 |