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
E10-S ETIWANDA OFF
FairOver: ETIWANDA WASH
08-SBD-010-10.99-ONT, San Bernardino, CA
Built 1966 Load: 47.0 t ADT: 12,000
VAN LEUVEN ST
FairOver: SAN TIMOTEO CREEK
0.4 MI W MTN VIEW AVE, San Bernardino, CA
Built 1982 Load: 47.0 t ADT: 2,879
INTERSTATE 580 EB
FairOver: UP RR & ACE
10-SJ-580-12.76, San Joaquin, CA
Built 1967 Load: 47.0 t ADT: 13,300
INTERSTATE 580 WB
FairOver: UP RR & ACE
10-SJ-580-12.74, San Joaquin, CA
Built 1967 Load: 47.0 t ADT: 13,300
JACK SLOUGH RD
FairOver: JACK SLOUGH
0.2 MI NORTH KIMBALL RD, Yuba, CA
Built 1982 Load: 47.0 t ADT: 590
BRANFORD ST
FairOver: PACOIMA WASH DIV CHANNEL
0.1 MI S ARLELA AVE, Los Angeles, CA
Built 1954 Load: 47.1 t ADT: 16,188
STATE ROUTE 82
FairOver: SAN FRANCISQUITO CREEK
04-SCL-082-26.36-PA, Santa Clara, CA
Built 1913 Load: 47.1 t ADT: 41,250
EL MONTE AVE
FairOver: DEAD HORSE SLOUGH
0.1 MI N SR 32, Butte, CA
Built 1979 Load: 47.3 t ADT: 628
EXCELSIOR AVE
FairOver: CRESCENT DITCH
0.7 MI E WEST LAWN AVE, Fresno, CA
Built 1975 Load: 47.3 t ADT: 100
CARSON ST
FairOver: SAN GABRIEL RIV
0.5MI W/O I-605 FWY, Los Angeles, CA
Built 1971 Load: 47.3 t ADT: 34,632
ST LOUIS RD
FairOver: SLATE CREEK
AT PLUMAS CO LINE, Plumas, CA
Built 1990 Load: 47.3 t ADT: 50
STATE ROUTE 156
FairOver: TEQUISQUITA SLOUGH
05-SBT-156-R15.43, San Benito, CA
Built 1966 Load: 47.3 t ADT: 12,100
STATE ROUTE 38
FairOver: MILL CREEK
08-SBD-038-9.60, San Bernardino, CA
Built 1947 Load: 47.3 t ADT: 5,000
TRINITY MTN RD
FairOver: FRENCH GULCH
FRENCH GULCH RD, Shasta, CA
Built 1922 Load: 47.3 t ADT: 742
INTERSTATE 5 SB
FairOver: SISKIYOU WAY
02-SIS-005-R18.71-WEED, Siskiyou, CA
Built 1973 Load: 47.3 t ADT: 7,150
CARIBOU ROAD
FairOver: RAYS GULCH
4.7 MI S/O CECILVILLE RD, Siskiyou, CA
Built 1982 Load: 47.3 t ADT: 29
22S82
FairOver: 22S82/NOBE YOUNG CREEK
NO DATA ENTERED, Tulare, CA
Built 1958 Load: 47.3 t ADT: 174
KOENIGSTEIN ROAD
FairOver: SISAR CREEK
0.01 MI N OF STATE RT 150, Ventura, CA
Built 1965 Load: 47.3 t ADT: 150
W BIGS-GRIDLY RD
FairOver: HAMILTON SLOUGH
0.4 MI S OF B ST, Butte, CA
Built 1950 Load: 47.6 t ADT: 800
FOREST AVE
FairOver: LITTLE CHICO CREEK
JUST S OF HUMBOLDT RD, Butte, CA
Built 1981 Load: 47.6 t ADT: 14,600
STATE ROUTE 86 NB
FairOver: CAMPBELL WASH
11-IMP-086-51.88, Imperial, CA
Built 1977 Load: 47.6 t ADT: 5,600
STATE ROUTE 86 NB
FairOver: WILLOW WASH
11-IMP-086-R39.01, Imperial, CA
Built 1976 Load: 47.6 t ADT: 7,350
CARSON ST
FairOver: SAN GABRIEL RIV
0.5MI W/O I-605 FWY, Los Angeles, CA
Built 1971 Load: 47.6 t ADT: 34,632
CENTINELA AVE
FairOver: BALLONA CREEK
0.1MI N/O SR90 MARINA FWY, Los Angeles, CA
Built 1938 Load: 47.6 t ADT: 30,000
DEVONSHIRE ST
FairOver: BULL CANYON CREEK
0.2 MI W WOODLEY AVE, Los Angeles, CA
Built 1956 Load: 47.6 t ADT: 33,000
ORTIGALITA ROAD
FairOver: OUTSIDE CANAL
0.9 MI S/O PIONEER RD, Merced, CA
Built 1966 Load: 47.6 t ADT: 1,150
INTERSTATE 15 SB
FairOver: DALE DITCH
08-SBD-015-150.30, San Bernardino, CA
Built 1961 Load: 47.6 t ADT: 18,500
FOURTH STREET
FairOver: CUCAMONGA CREEK CHANNEL
1.25 MI E OF RTE I-10, San Bernardino, CA
Built 1979 Load: 47.6 t ADT: 13,654
INTERSTATE 805 NB
FairOver: LOS PENASQUITOS CREEK
11-SD-805-28.49-SD, San Diego, CA
Built 1972 Load: 47.6 t ADT: 82,000
GENESEE AVE
FairOver: MTDB, BNSF RY, & AMTRAK
0.4 MI S/O NOBEL DR., San Diego, CA
Built 1970 Load: 47.6 t ADT: 26,800
INTERSTATE 5 NB
FairOver: HUTTON CREEK
02-SIS-005-R64.82R, Siskiyou, CA
Built 1974 Load: 47.6 t ADT: 15,300
E12-N&S101 CONNCTR
FairOver: OLIVE STREET
04-SON-012-R15.70-SRO, Sonoma, CA
Built 1964 Load: 47.6 t ADT: 47,400
STATE ROUTE 126
FairOver: SESPE CREEK OVERFLOW
07-VEN-126-19.73, Ventura, CA
Built 1954 Load: 47.6 t ADT: 37,500
C.R. 21A
FairOver: WINTERS CANAL
0.17 MI E/O RD. 85B, Yolo, CA
Built 2006 Load: 47.6 t ADT: 1,050
INTERSTATE 405
FairOver: ATHERTON STREET
07-LA-405-0.27-LBCH, Los Angeles, CA
Built 1964 Load: 47.9 t ADT: 255,000
INTERSTATE 5 SB
FairOver: CNFR & OLD HWY 99W
03-COL-005-R16.57, Colusa, CA
Built 1971 Load: 48.0 t ADT: 14,000
INTERSTATE 5 NB
FairOver: CNFR & OLD HWY 99W
03-COL-005-R16.55, Colusa, CA
Built 1971 Load: 48.0 t ADT: 14,000
SR 160 NB
FairOver: BNSF RY, UP RR, & AMTRAK
04-CC-160-1.28, Contra Costa, CA
Built 1971 Load: 48.0 t ADT: 5,700
N FLOYD AVE
FairOver: HERNDON CANAL
AT BARSTOW AVE, Fresno, CA
Built 1925 Load: 48.0 t ADT: 200
US HIGHWAY 101 NB
FairOver: SCENIC WAY
01-HUM-101-R53.38-RDEL, Humboldt, CA
Built 1976 Load: 48.0 t ADT: 13,000
SPROWEL CREEK ROAD
FairOver: SPROWEL CREEK
3 MI SW/O KIMTU RD, Humboldt, CA
Built 1959 Load: 48.0 t ADT: 163
COFFEE ROAD NB
FairOver: CROSS VALLEY CANAL
JUST S OF ROUTE 58, Kern, CA
Built 1981 Load: 48.0 t ADT: 40,900
ELGIN AVE
FairOver: ISLAND CANAL
20TH AVE, Kings, CA
Built 1960 Load: 48.0 t ADT: 500
AGOURA RD
FairOver: PRIVATE DN 728
50FT E/O LINDERO CYN RD, Los Angeles, CA
Built 1968 Load: 48.0 t ADT: 10,056
STATE ROUTE 29 NB
FairOver: NAPA VALLEY CORPORATE DR
04-NAP-029-R6.64, Napa, CA
Built 1981 Load: 48.0 t ADT: 22,500
JURUPA ROAD
FairOver: SAN SEVAINE CHANNEL
100' E/O BAIN STREET, Riverside, CA
Built 1971 Load: 48.0 t ADT: 6,636
64TH STREET
FairOver: DAY CREEK CHANNEL
300' W/O LUCRETIA AVENUE, Riverside, CA
Built 1984 Load: 48.0 t ADT: 1,209
INTERSTATE 10 WB
FairOver: ETIWANDA WASH
08-SBD-010-10.99-ONT, San Bernardino, CA
Built 1947 Load: 48.0 t ADT: 117,000
U.S. HWY 101 (SB)
FairOver: RONAN DIVERSION CHANNEL
04-SCL-101-R6.57-GIL, Santa Clara, CA
Built 1973 Load: 48.0 t ADT: 26,000
CHAUCER ST
FairOver: SAN FRANCISQUITO CREEK
WOODLAND & PALO ALTO AV, Santa Clara, CA
Built 1948 Load: 48.0 t ADT: 5,500
Showing 16,401-16,450 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.