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
STANLEY BLVD
GoodOver: ARROYO MOCHO
0.1 MI W/O MURRIETA BLVD, Alameda, CA
Built 1940 Load: 28.8 t ADT: 40,300
OPENSHAW RD
GoodOver: DRY CREEK OVERFLOW
0.25 MI N/W SHIPPEE RD, Butte, CA
Built 1955 Load: 28.8 t ADT: 10
CORTINA VINEYARD R
GoodOver: TEHAMA-COLUSA CANAL
1.1 MI S MEYER RD, Colusa, CA
Built 1976 Load: 28.8 t ADT: 62
OLYMPIC BLVD
GoodOver: LAS TRAMPAS CREEK
0.1 MI SW OF I-680, Contra Costa, CA
Built 1963 Load: 28.8 t ADT: 21,623
TRIMMER SPRINGS RD
GoodOver: HUGHES CREEK
1.3 MI N/O PINE FLAT RD, Fresno, CA
Built 1969 Load: 28.8 t ADT: 400
U.S. HIGHWAY 101
GoodOver: BEAR BUTTE ROAD
01-HUM-101-23.01, Humboldt, CA
Built 1962 Load: 28.8 t ADT: 5,100
STATE ROUTE 78
GoodOver: ALAMO RIVER
11-IMP-078-17.48, Imperial, CA
Built 1982 Load: 28.8 t ADT: 6,300
US HIGHWAY 395 SB
GoodOver: FIVE MILE CANYON
09-INY-395-R5.39L, Inyo, CA
Built 1948 Load: 28.8 t ADT: 6,400
STATE ROUTE 58
GoodOver: LA ROSE CREEK
09-KER-058-103.44, Kern, CA
Built 1957 Load: 28.8 t ADT: 40,000
ROUTE 5
GoodOver: BRAND BLVD
07-LA-005-39.98-LA, Los Angeles, CA
Built 1963 Load: 28.8 t ADT: 156,373
STATE ROUTE 14
GoodOver: AGUA DULCE RD UC
07-LA-014-39.85, Los Angeles, CA
Built 1963 Load: 28.8 t ADT: 97,000
FAIRFAX-W10 ONRAMP
GoodOver: BALLONA CRK & ACCESS RD
07-LA-010-R9.10-LA, Los Angeles, CA
Built 1964 Load: 28.8 t ADT: 10,700
W105-CENTRAL OFFRP
GoodOver: COMPTON CREEK
07-LA-105-R8.97-LA, Los Angeles, CA
Built 1988 Load: 28.8 t ADT: 15,600
STATE ROUTE 41
GoodOver: FRESNO RIVER
06-MAD-041-35.30, Madera, CA
Built 1971 Load: 28.8 t ADT: 33,500
U.S. HIGHWAY 101
GoodOver: HILLSIDE
04-MRN-101-1.09-SAUS, Marin, CA
Built 1954 Load: 28.8 t ADT: 53,000
STATE ROUTE 1
GoodOver: MOAT CREEK
01-MEN-001-12.88, Mendocino, CA
Built 1939 Load: 28.8 t ADT: 2,900
US HIGHWAY 101 SB
GoodOver: HENSLEY CR,HENSLEY CR RD
01-MEN-101-27.00, Mendocino, CA
Built 1962 Load: 28.8 t ADT: 13,750
US HIGHWAY 101 NB
GoodOver: HENSLEY CR,HENSLEY CR RD
01-MEN-101-27.00, Mendocino, CA
Built 1962 Load: 28.8 t ADT: 13,750
IRR MINA RD
GoodOver: NORTH FORK EEL RIVER
4.2 MI S TRINITY CO LINE, Mendocino, CA
Built 1967 Load: 28.8 t ADT: 143
STATE ROUTE 59
GoodOver: S FK BLACK RASCAL CREEK
10-MER-059-16.22, Merced, CA
Built 1927 Load: 28.8 t ADT: 15,950
CACHAGUA RD
GoodOver: CACHAGUA CREEK
3.3 MI W/O G16, Monterey, CA
Built 1940 Load: 28.8 t ADT: 720
CACHAGUA RD
GoodOver: CACHAGUA CREEK
4.7 MI WEST OF G 16, Monterey, CA
Built 1965 Load: 28.8 t ADT: 720
INTERSTATE 80
GoodOver: SOUTH YUBA RIVER
03-NEV-080-R61.65L, Nevada, CA
Built 1964 Load: 28.8 t ADT: 14,250
STATE ROUTE 22
GoodOver: SANTIAGO CREEK
12-ORA-022-R11.70-ORA, Orange, CA
Built 1967 Load: 28.8 t ADT: 144,000
RIVERSIDE AVE
GoodOver: DRY CREEK
0.6 MI N CIRBY AVE, Placer, CA
Built 1928 Load: 28.8 t ADT: 18,000
INTERSTATE 10 WB
GoodOver: OBAN DITCH
08-RIV-010-R112.28, Riverside, CA
Built 1966 Load: 28.8 t ADT: 10,700
INTERSTATE 10 WB
GoodOver: WEST CACTUS WASH
08-RIV-010-R72.93, Riverside, CA
Built 1965 Load: 28.8 t ADT: 11,250
INTERSTATE 10 EB
GoodOver: EAST CACTUS CITY ROAD
08-RIV-010-R74.83, Riverside, CA
Built 1965 Load: 28.8 t ADT: 11,250
PACIFIC AVE
GoodOver: CALAVERAS RIVER
0.25 MI N FULTON ST, San Joaquin, CA
Built 1952 Load: 28.8 t ADT: 18,350
MARIPOSA ROAD
GoodOver: S BR S LITTLEJOHNS CREEK
0.3 MI NW GAWNE RD, San Joaquin, CA
Built 1971 Load: 28.8 t ADT: 6,253
S1-S101 CONNECTOR
GoodOver: GAVIOTA CREEK
05-SB-001-R0.16, Santa Barbara, CA
Built 1967 Load: 28.8 t ADT: 2,000
N17-N85 CONNECTOR
GoodOver: OKA ROAD
04-SCL-017-9.43-LGTS, Santa Clara, CA
Built 1994 Load: 28.8 t ADT: 15,100
HOLMES LANE
GoodOver: PUTAH SOUTH CANAL
0.30 MI SW PUTAH CREEK RD, Solano, CA
Built 1955 Load: 28.8 t ADT: 193
INTERSTATE 5 SB
GoodOver: SOUTH FORK BLUE TENT CRK
02-TEH-005-31.75, Tehama, CA
Built 1963 Load: 28.8 t ADT: 19,500
INTERSTATE 5 SB
GoodOver: BURCH CREEK
02-TEH-005-R8.01, Tehama, CA
Built 1966 Load: 28.8 t ADT: 13,500
WILDER RD
GoodOver: REEDS CREEK
0.2 MI S REEDS CREEK RD, Tehama, CA
Built 1949 Load: 28.8 t ADT: 1,500
STATE ROUTE 3
GoodOver: RAMSHORN CREEK
02-TRI-003-73.47, Trinity, CA
Built 1969 Load: 28.8 t ADT: 200
M172A
GoodOver: MIDDLE FORK TULE RIVER
0.3 MI S OF SR 190, Tulare, CA
Built 1969 Load: 28.8 t ADT: 100
M172A
GoodOver: MIDDLE FORK TULE RIVER
0.1 MI E OF FAP 190, Tulare, CA
Built 1969 Load: 28.8 t ADT: 100
R 256
GoodOver: DEER CREEK
0.6 MI S OF A116, Tulare, CA
Built 1953 Load: 28.8 t ADT: 1,200
ROAD 156
GoodOver: CAMERON CREEK
0.3 MI N OF AVE 288, Tulare, CA
Built 1948 Load: 28.8 t ADT: 1,500
STATE ROUTE 16
GoodOver: SOUTH FORK WILLOW SLOUGH
03-YOL-016-31.82, Yolo, CA
Built 1980 Load: 28.8 t ADT: 10,600
STATE ROUTE 113
GoodOver: CACHE CREEK
03-YOL-113-13.10, Yolo, CA
Built 1960 Load: 28.8 t ADT: 3,700
STATE-N101 ON RAMP
GoodOver: EMBANKMENT
07-LA-010-18.48-LA, Los Angeles, CA
Built 1960 Load: 29.0 t ADT: 3,990
STATE ROUTE 88
GoodOver: SOUTH FORK JACKSON CREEK
10-AMA-088-14.30-JKN, Amador, CA
Built 1948 Load: 29.2 t ADT: 10,800
STATE ROUTE 32
GoodOver: PINE CREEK LAGOON
03-BUT-032-1.39, Butte, CA
Built 1958 Load: 29.2 t ADT: 11,700
STATE ROUTE 70
GoodOver: PENSTOCK UC
03-BUT-070-44.43, Butte, CA
Built 1950 Load: 29.2 t ADT: 1,350
STATE ROUTE 20
GoodOver: TEHAMA-COLUSA CANAL
03-COL-020-13.93, Colusa, CA
Built 1977 Load: 29.2 t ADT: 5,800
COUNTY RD 35
GoodOver: TEHAMA-COLUSA CANAL
1.4 MI W OF RD 'D', Glenn, CA
Built 1975 Load: 29.2 t ADT: 38
US HIGHWAY 101 SB
GoodOver: N CENTRAL AVE
01-HUM-101-R95.62, Humboldt, CA
Built 1964 Load: 29.2 t ADT: 16,500
Showing 19,401-19,450 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.