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
BUTCHER ROAD
GoodOver: ALAMO CREEK
ADJ TO I-80, Solano, CA
Built 1963 Load: 36.9 t ADT: 4,330
MILLBRAE AVE
GoodOver: N BR LAGUNA DE SANTA RSA
W OF LANGNER, Sonoma, CA
Built 1963 Load: 36.9 t ADT: 3,000
STATE ROUTE 33
GoodOver: CCID MAIN CANAL
10-STA-033-6.09, Stanislaus, CA
Built 1955 Load: 36.9 t ADT: 4,850
COUNTY ROAD 90
GoodOver: BIRD CREEK
0.5 MI SOUTH OF CR 8, Yolo, CA
Built 1968 Load: 36.9 t ADT: 20
STATE ROUTE 99
GoodOver: SHIPPEE CREEK
03-BUT-099-16.09, Butte, CA
Built 1952 Load: 37.2 t ADT: 10,000
STATE ROUTE 14
GoodOver: SPRING CANYON ROAD
07-LA-014-36.54, Los Angeles, CA
Built 1963 Load: 37.2 t ADT: 97,000
GAS PT RD
GoodOver: CROWLEY GULCH
.4 MI W/O SR5, Shasta, CA
Built 1940 Load: 37.2 t ADT: 6,723
WINDING ROAD
GoodOver: SIDE STREAM
NO DATA ENTERED, Amador, CA
Built 1968 Load: 37.3 t ADT: 50
GRIDLEY COLUSA HWY
GoodOver: CHEROKEE CANAL
1.3 MI E COLUSA CO LINE, Butte, CA
Built 1958 Load: 37.3 t ADT: 1,139
EATON ROAD
GoodOver: PLEASANT VALLEY DITCH
1.3 MI EAST OF ST ROUT 99, Butte, CA
Built 1962 Load: 37.3 t ADT: 6,015
INTERSTATE 5
GoodOver: CORTINA CREEK
03-COL-005-R12.54, Colusa, CA
Built 1967 Load: 37.3 t ADT: 15,000
INTERSTATE 5 SB
GoodOver: QUIST RD
06-FRE-005-1.70, Fresno, CA
Built 1970 Load: 37.3 t ADT: 15,000
PERINI ROAD
GoodOver: SEIGLER CANYON CREEK
AT SEIGLER CYN RD, Lake, CA
Built 2007 Load: 37.3 t ADT: 75
ROAD M01
GoodOver: SMOKEHOUSE CRK
N. OF LAKE PILLSBURY, Lake, CA
Built 1976 Load: 37.3 t ADT: 313
ROAD M1
GoodOver: SALMON CREEK
N. OF LAKE PILLSBURY, Lake, CA
Built 1976 Load: 37.3 t ADT: 318
STATE ROUTE 1
GoodOver: ZUMA CREEK
07-LA-001-54.95, Los Angeles, CA
Built 1927 Load: 37.3 t ADT: 25,100
STATE ROUTE 2
GoodOver: RIPPLE STREET
07-LA-002-15.32-LA, Los Angeles, CA
Built 1961 Load: 37.3 t ADT: 153,000
INTERSTATE 5 SB
GoodOver: METROLINK,UP RR,AMTRAK,
07-LA-005-28.70-BRB, Los Angeles, CA
Built 1959 Load: 37.3 t ADT: 119,510
SB 110-SB 110 ONRP
GoodOver: ROADWAY CUT SLOPE
07-LA-110-22.90-LA, Los Angeles, CA
Built 1958 Load: 37.3 t ADT: 3,000
STATE ROUTE 57
GoodOver: UP RR & METROLINK
07-LA-057-R7.09-POM, Los Angeles, CA
Built 1972 Load: 37.3 t ADT: 158,000
STATE RTE 118
GoodOver: TELFAIR AVE
07-LA-118-R12.13-LA, Los Angeles, CA
Built 1976 Load: 37.3 t ADT: 135,745
SB 405-STUDEBAKER
GoodOver: WOODRUFF AVE
07-LA-405-0.66-LBCH, Los Angeles, CA
Built 1993 Load: 37.3 t ADT: 5,000
LOWER AZUSA RD
GoodOver: SAN GABRIEL RIV
0.3MI W/O IS 605, Los Angeles, CA
Built 1960 Load: 37.3 t ADT: 27,071
HUNTINGTON DR
GoodOver: ARCADIA WASH
0.2MI E/O HOLLY AVE, Los Angeles, CA
Built 1957 Load: 37.3 t ADT: 13,520
LOBO CYN RD W/XING
GoodOver: LOBO CRK
1.4MI W/O TRIFUNO CYN RD, Los Angeles, CA
Built 1954 Load: 37.3 t ADT: 189
CENTRAL AVE
GoodOver: SAWPIT WASH
0.2MI W/O MOUNTAIN AVE, Los Angeles, CA
Built 1968 Load: 37.3 t ADT: 21,994
STATE ROUTE 49
GoodOver: W FORK CHOWCHILLA RIVER
10-MPA-049-11.44, Mariposa, CA
Built 1968 Load: 37.3 t ADT: 3,725
STATE ROUTE 1
GoodOver: HARDY CREEK
01-MEN-001-83.78, Mendocino, CA
Built 1959 Load: 37.3 t ADT: 1,185
STATE ROUTE 1
GoodOver: TORRE CANYON
05-MON-001-39.72, Monterey, CA
Built 1955 Load: 37.3 t ADT: 3,150
STATE ROUTE 89
GoodOver: SQUAW CREEK
03-PLA-089-14.21, Placer, CA
Built 1958 Load: 37.3 t ADT: 12,000
FOLSOM RD (RSVL)
GoodOver: DRY CREEK
0.1 MI SE VERNON ST, Placer, CA
Built 1970 Load: 37.3 t ADT: 3,500
INTERSTATE 10 WB
GoodOver: HILLOCK DITCH
08-RIV-010-R100.68, Riverside, CA
Built 1967 Load: 37.3 t ADT: 11,500
STATE ROUTE 111
GoodOver: ELM DITCH
08-RIV-111-6.60, Riverside, CA
Built 1951 Load: 37.3 t ADT: 1,650
STATE ROUTE 111
GoodOver: OLIVE DITCH
08-RIV-111-11.30, Riverside, CA
Built 1951 Load: 37.3 t ADT: 2,700
STATE ROUTE 111
GoodOver: WALNUT DITCH
08-RIV-111-13.18, Riverside, CA
Built 1951 Load: 37.3 t ADT: 2,700
HAZEL AVENUE
GoodOver: FOLSOM SOUTH CANAL
0.2 MI N OF S.R. 50, Sacramento, CA
Built 1966 Load: 37.3 t ADT: 49,615
INTERSTATE 8 EB
GoodOver: CARRIZO RD
11-SD-008-R73.96, San Diego, CA
Built 1967 Load: 37.3 t ADT: 7,350
SB MORENA-W8 ONRMP
GoodOver: PEDESTRIAN WALKWAY
11-SD-008-R0.35-SD, San Diego, CA
Built 1969 Load: 37.3 t ADT: 5,000
BUCKLEY ROAD
GoodOver: E BR SAN LUIS OBISPO CRK
1.5 MI E OF US 101, San Luis Obispo, CA
Built 1956 Load: 37.3 t ADT: 4,396
PESCADERO RD
GoodOver: BUTANO CREEK
0.3 MI E BEAN HOLLOW RD, San Mateo, CA
Built 1961 Load: 37.3 t ADT: 2,624
PERSIAN DRIVE
GoodOver: SUNNYVALE EAST CHANNEL
0.3 MI E/O FAIR-OAKS AVE, Santa Clara, CA
Built 1966 Load: 37.3 t ADT: 1,750
MOFFETT PARK DR
GoodOver: SUNNYVALE EAST CHANNEL
0.3 MI E/O FAIR-OAKS AVE, Santa Clara, CA
Built 1966 Load: 37.3 t ADT: 6,805
CHARCOT AVE
GoodOver: COYOTE CREEK
0.2 MI E/O JUNCTION AVE, Santa Clara, CA
Built 1971 Load: 37.3 t ADT: 1,170
STATE ROUTE 89
GoodOver: HAT CREEK
02-SHA-089-14.37, Shasta, CA
Built 1934 Load: 37.3 t ADT: 1,625
DENNIS LANE
GoodOver: WILLOW CREEK
0.5 MI E OF AGER RD, Siskiyou, CA
Built 1969 Load: 37.3 t ADT: 20
WHISTLER AVE
GoodOver: N BR LAGUNA DE SANTA RSA
0.3 MI N WILFRED AVE, Sonoma, CA
Built 1963 Load: 37.3 t ADT: 200
STATE ROUTE 33
GoodOver: ORESTIMBA CREEK
10-STA-033-5.57, Stanislaus, CA
Built 1954 Load: 37.3 t ADT: 4,850
WOODSON AVE
GoodOver: BURCH CREEK
AT SOUTH AVE, Tehama, CA
Built 1985 Load: 37.3 t ADT: 561
DUSTY WAY
GoodOver: OAT CREEK
2 MI W RTE 5 W CHRD-RWSON, Tehama, CA
Built 1972 Load: 37.3 t ADT: 718
GYLE ROAD
GoodOver: TEHAMA-COLUSA CANAL
1.5 MI W/O SR 99, Tehama, CA
Built 1969 Load: 37.3 t ADT: 1,400
Showing 24,351-24,400 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 |