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
ARDENWOOD BL
PoorOver: ALAMEDA FLOOD CNTRL CHNL
0.1 MI S/E LOWRY RD, Alameda, CA
Built 1965 Load: 17.8 t ADT: 17,800
OAK WAY
PoorOver: SANDY GULCH
0.5 MI W GLENWOOD AVE, Butte, CA
Built 1906 Load: 17.8 t ADT: 325
S WESTLAWN AVE
PoorOver: CRESCENT DITCH
0.15 MI N OF EXCELSIOR AV, Fresno, CA
Built 1945 Load: 17.8 t ADT: 50
MATTOLE RD
PoorOver: MATTOLE RIVER
0.8 MI SOUTH OF PETROLIA, Humboldt, CA
Built 1958 Load: 17.8 t ADT: 412
RAVENNA DR
PoorOver: RIVO ALTO CANAL
0.1MI S/O 2ND ST, Los Angeles, CA
Built 1953 Load: 17.8 t ADT: 1,312
OLD TOLL ROAD
PoorOver: BEAR CREEK
3.0 MI W OF SR 49, Mariposa, CA
Built 1948 Load: 17.8 t ADT: 130
CARMEL VALLEY RD
PoorOver: FINCH CREEK
14.1 MI NW ARROYO SECO RD, Monterey, CA
Built 1947 Load: 17.8 t ADT: 290
ORANGEWOOD AVENUE
PoorOver: SANTA ANA RIVER CHANNEL
0.1 MI. W/O ROUTE 57 FWY, Orange, CA
Built 1966 Load: 17.8 t ADT: 17,200
GARDEN BAR RD
PoorOver: COON CREEK
3 MI N PLEASANT RD, Placer, CA
Built 1945 Load: 17.8 t ADT: 209
BRIMBLECOM RD
PoorOver: SAN LORENZO RIVER
.1 MI W/O SR 9, Santa Cruz, CA
Built 1948 Load: 17.8 t ADT: 400
PARKVILLE RD
PoorOver: ASH CREEK
3.4 MI S DERSCH RD, Shasta, CA
Built 1958 Load: 17.8 t ADT: 130
KENT ROAD
PoorOver: SUTTER-BUTTE CANAL
0.2 MI S OF MCDONALD AVE, Sutter, CA
Built 1938 Load: 17.8 t ADT: 389
CHILD'S HILL ROAD
PoorOver: JANE CREEK
10.3 MI SE OF HAMILTON RD, Del Norte, CA
Built 1950 Load: 18.1 t ADT: 5
NORTH ABBY STREET
PoorOver: DRY CREEK CANAL
NORTH OF E. OLIVE AVE, Fresno, CA
Built 1955 Load: 18.1 t ADT: 4,000
MATTOLE ROAD
PoorOver: MATTOLE RIVER
8.0 MI N/O HONEYDEW, Humboldt, CA
Built 1935 Load: 18.1 t ADT: 205
COTTONWOOD GATES
PoorOver: LOS ANGELES AQUEDUCT
0.6 MI W OF RTE 395 JCT, Inyo, CA
Built 1927 Load: 18.1 t ADT: 50
STATE ROUTE 46
PoorOver: GOOSE LAKE CANAL
06-KER-046-35.13, Kern, CA
Built 1956 Load: 18.1 t ADT: 6,100
PARK AVENUE
PoorOver: WATERS WAY
PARK AVE. AT COLLINS ISLE, Orange, CA
Built 1953 Load: 18.1 t ADT: 200
FAIRVIEW STREET
PoorOver: SANTA ANA RIVER CHANNEL
0.2 MI S/O WESTMINSTER AV, Orange, CA
Built 1963 Load: 18.1 t ADT: 38,544
NORTHGATE BLVD
PoorOver: NATOMAS E MAIN DRN CANAL
0.1 MI S OF GARDEN HWY, Sacramento, CA
Built 1970 Load: 18.1 t ADT: 19,991
PARK AV
PoorOver: MISSION STORM DRAIN
0.1 MI E OF CALIFORNIA ST, San Bernardino, CA
Built 1935 Load: 18.1 t ADT: 300
CHEROKEE RD
PoorOver: STOCKTON DIVERTING CANAL
0.5 MI S/W OF S.H. 99, San Joaquin, CA
Built 1948 Load: 18.1 t ADT: 6,863
LOMPICO ROAD
PoorOver: LOMPICO CREEK
AT DEERWOOD DRIVE, Santa Cruz, CA
Built 1940 Load: 18.1 t ADT: 500
INTERSTATE 80
PoorOver: ALAMO CREEK
04-SOL-080-R25.03-VAC, Solano, CA
Built 1936 Load: 18.1 t ADT: 147,000
KERNER BLVD
PoorOver: INDST PRK DRAINAGE CANAL
N/O IRENE ST, S/O BELLAM, Marin, CA
Built 1972 Load: 18.3 t ADT: 3,600
RELIZ CANYON RD
PoorOver: DRAINAGE MISSION CREEK
N MISSION CREEK RD SEC 3, Monterey, CA
Built 1994 Load: 18.3 t ADT: 1
ORVLE CHICO HWY
PoorOver: HAMLIN SLOUGH
1.1 MI NW DURHAM HWY, Butte, CA
Built 1920 Load: 18.5 t ADT: 300
U.S. HIGHWAY 50
PoorOver: SNOW ROAD
03-ED-050-25.26, El Dorado, CA
Built 1957 Load: 18.5 t ADT: 20,300
COTTONWOOD ROAD
PoorOver: OUTSIDE CANAL
0.5 MI E ORCHARD RD, Merced, CA
Built 1975 Load: 18.5 t ADT: 108
GREEN CREEK ROAD
PoorOver: VIRGINIA CREEK
100' W/O US 395, Mono, CA
Built 1956 Load: 18.5 t ADT: 100
RELIZ CYN RD
PoorOver: RELIZ CREEK
0.6 MI S/O ELM AVE, Monterey, CA
Built 1953 Load: 18.5 t ADT: 150
CLAY STATION RD
PoorOver: HADSELVILLE CREEK
0.1 MI N/O SR 104, Sacramento, CA
Built 1960 Load: 18.5 t ADT: 1,025
SOUTH AVE
PoorOver: SACRAMENTO RIVER
3.6 MI WEST OF SH 99, Tehama, CA
Built 1975 Load: 18.5 t ADT: 6,000
DECOTO RD
PoorOver: ALAMEDA CREEK
NE PASEO PADRE PKWAY, Alameda, CA
Built 1967 Load: 18.8 t ADT: 35,700
SYCAMORE PL
PoorOver: SIERRA MADRE WASH
0.6MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1928 Load: 18.8 t ADT: 408
MARY HARRISON MINE
PoorOver: MAXWELL CREEK
AT SH 132, Mariposa, CA
Built 1926 Load: 18.8 t ADT: 10
SHERWOOD RD
PoorOver: SHERWOOD CREEK
0.5 MI W JCT SHERWOOD RD, Mendocino, CA
Built 1979 Load: 18.8 t ADT: 137
TUSTIN AVENUE
PoorOver: SANTA ANA RIVER CHANNEL
0.3 MI. S/O ROUTE 91 FWY., Orange, CA
Built 1967 Load: 18.8 t ADT: 19,800
SILVERADO CANYN RD
PoorOver: SILVERADO CANYON CREEK
5.4 MI E/O SANTIAGO CYN, Orange, CA
Built 1947 Load: 18.8 t ADT: 2,000
INTERSTATE 40
PoorOver: BLACK CYN WASH
08-SBD-040-R102.18, San Bernardino, CA
Built 1970 Load: 18.8 t ADT: 7,500
INTERSTATE 40
PoorOver: BLACK CYN WASH
08-SBD-040-R102.18, San Bernardino, CA
Built 1970 Load: 18.8 t ADT: 7,500
US HIGHWAY 101 NB
PoorOver: NOJOQUI CREEK
05-SB-101-55.00, Santa Barbara, CA
Built 1956 Load: 18.8 t ADT: 11,000
HILTON DRIVE
PoorOver: BOULDER CREEK
BOULDER CRK COUNTRY CLUB, Santa Cruz, CA
Built 1959 Load: 18.8 t ADT: 2,500
FRANZ VALEY SCH RD
PoorOver: FRANZ CREEK
JUST N/O FRANZ RD, Sonoma, CA
Built 1946 Load: 18.8 t ADT: 350
EAST FK HAYFORK RD
PoorOver: HAYFORK CREEK
0.2 MI E WILDWOOD ROAD, Trinity, CA
Built 1971 Load: 18.8 t ADT: 50
WATERMAN AVE
PoorOver: SANTA ANA RIVER
0.4 MI N OF I-10, San Bernardino, CA
Built 1948 Load: 19.1 t ADT: 30,542
LA CADENA DR
PoorOver: SANTA ANA RIVER
1.5 MI SOUTH OF I-10, San Bernardino, CA
Built 1929 Load: 19.1 t ADT: 12,519
NAT TRAILS HWY
PoorOver: KALMIA DITCH
11.8 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 19.1 t ADT: 235
STATE ROUTE 4
PoorOver: OLD RIVER
10-SJ-004-0.01, San Joaquin, CA
Built 1915 Load: 19.1 t ADT: 8,200
PEZZI RD
PoorOver: CALAVERAS RIVER
0.8 MI S/O EIGHT MI RD, San Joaquin, CA
Built 1926 Load: 19.1 t ADT: 402
Showing 26,051-26,100 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 |