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
INTERSTATE 15 SB
FairOver: DAY CANYON CHANNEL
08-SBD-015-4.47-RCUC, San Bernardino, CA
Built 1975 Load: 53.5 t ADT: 98,000
INTERSTATE 15 NB
FairOver: DAY CANYON CHANNEL
08-SBD-015-4.47-RCUC, San Bernardino, CA
Built 1975 Load: 53.5 t ADT: 98,000
PALOVERDE ST
FairOver: SAN ANTONIO CREEK CHAN
0.3 MI E LA-SBD CO LINE, San Bernardino, CA
Built 1958 Load: 53.5 t ADT: 1,100
HOT SPRINGS RD
FairOver: MONTECITO CREEK
0.65 MI N OF US 101, Santa Barbara, CA
Built 1971 Load: 53.5 t ADT: 7,556
MCKEAN ROAD
FairOver: ALAMITOS CREEK
0.3 MI NE/O ALMADEN RD, Santa Clara, CA
Built 1985 Load: 53.5 t ADT: 7,600
BIG BEND RD
FairOver: HATCHET CREEK
0.8 MI N S.R. 299, Shasta, CA
Built 1970 Load: 53.5 t ADT: 550
INTERSTATE 505
FairOver: UNION SCHOOL SLOUGH
03-YOL-505-5.71, Yolo, CA
Built 1980 Load: 53.5 t ADT: 12,000
N880-HESPERIAN BL
FairOver: SAN LORENZO CREEK
04-ALA-880-20.11, Alameda, CA
Built 1992 Load: 53.8 t ADT: 1,100
A ST
FairOver: SAN LORENZO CREEK
BTWN 4TH & RUBY ST, Alameda, CA
Built 1960 Load: 53.8 t ADT: 30,600
ALDERPOINT RD
FairOver: LARABEE CREEK
32.2 MI E/N FROM SH 101, Humboldt, CA
Built 1960 Load: 53.8 t ADT: 107
U.S. HIGHWAY 101
FairOver: 1ST STREET
07-LA-101-S0.91-LA, Los Angeles, CA
Built 1947 Load: 53.8 t ADT: 140,000
JACKSON STREET
FairOver: WHITEWATER RIVER
0.2 MI. S/O RTE. I-10 FWY, Riverside, CA
Built 1972 Load: 53.8 t ADT: 17,000
RADIO ROAD
FairOver: ARLINGTON CHANNEL
0.3 MI. N/O SIXTH STREET, Riverside, CA
Built 1975 Load: 53.8 t ADT: 1,000
BRANDT RD
FairOver: BEAR CREEK
0.5 MI E JACK TONE RD, San Joaquin, CA
Built 1973 Load: 53.8 t ADT: 1,270
STATE ROUTE 299
FairOver: CLEAR CREEK
02-SHA-299-8.73, Shasta, CA
Built 1988 Load: 53.8 t ADT: 3,800
CAZADERO HWY
FairOver: AUSTIN CREEK
WEST OF SR 1, Sonoma, CA
Built 1956 Load: 53.8 t ADT: 1,550
CAPAY RD
FairOver: RICE CREEK
0.8 MI E OF RD 99 W, Tehama, CA
Built 1974 Load: 53.8 t ADT: 789
STATE ROUTE 118
FairOver: DRY CANYON CHANNEL
07-VEN-118-R25.08-SIMV, Ventura, CA
Built 1970 Load: 53.8 t ADT: 65,000
SR 160 SB
FairOver: BNSF RY, UP RR, & AMTRAK
04-CC-160-1.28, Contra Costa, CA
Built 1971 Load: 54.1 t ADT: 5,700
STATE ROUTE 86 NB
FairOver: SOUTH SAND DUNE WASH
11-IMP-086-45.68, Imperial, CA
Built 1977 Load: 54.1 t ADT: 5,600
GURR ROAD
FairOver: DEADMAN CREEK
0.6 MI N SANDY MUSH RD, Merced, CA
Built 1985 Load: 54.1 t ADT: 600
SANDERSON AVENUE
FairOver: STETSON CHANNEL
25' N/O STETSON AVENUE, Riverside, CA
Built 1975 Load: 54.1 t ADT: 29,000
SR 120 EB
FairOver: UP RR & ACE
10-SJ-120-R1.81, San Joaquin, CA
Built 1980 Load: 54.1 t ADT: 37,500
STANLEY ROAD
FairOver: LITTLEJOHNS CREEK
0.6 MI SOUTH OF SH4, San Joaquin, CA
Built 1974 Load: 54.1 t ADT: 132
CARRILLO ST
FairOver: MISSION CREEK
WEST OF CASTILLO ST, Santa Barbara, CA
Built 1963 Load: 54.1 t ADT: 30,000
CASSERLY RD
FairOver: GREEN VALLEY CREEK
0.4 MI N GREEN VALLEY RD, Santa Cruz, CA
Built 1938 Load: 54.1 t ADT: 500
MIDDLE TERRACE
FairOver: HILLSIDE
JUST S STARRETT HILL DR, Sonoma, CA
Built 1980 Load: 54.1 t ADT: 200
UPPER MAD RIVER RD
FairOver: LITTLEFIELD CREEK
19.7 MI SOUTH OF S.R. 36, Trinity, CA
Built 1955 Load: 54.1 t ADT: 31
LURLINE AVE
FairOver: LURLINE CREEK
2.1 MI EAST OF I-5, Colusa, CA
Built 1981 Load: 54.4 t ADT: 108
EVANS AVE
FairOver: COLONY MAIN CANAL
0.3 MI N/O SHAIN AVE, Fresno, CA
Built 1925 Load: 54.4 t ADT: 350
RUTHERFORD RD(S26)
FairOver: ALAMO RIVER
2.3 MI W/O STATE RTE 115, Imperial, CA
Built 1979 Load: 54.4 t ADT: 1,000
REEDER AVE
FairOver: WALNUT CRK
0.1MI E/O REEDER AVE, Los Angeles, CA
Built 1986 Load: 54.4 t ADT: 3,955
BIG TUJUNGA CYN RD
FairOver: TRAIL CYN
5.0MI NE/O FOOTHILL BLVD, Los Angeles, CA
Built 1947 Load: 54.4 t ADT: 510
CHANDLER BL S RDWY
FairOver: TUJUNGA WASH CHANDLER
BTW GDLAND AVE/CLDWTR CYN, Los Angeles, CA
Built 1957 Load: 54.4 t ADT: 19,500
OLD TIOGA ROAD
FairOver: YOSEMITE CREEK
At Yosemite Creek Cmpgrnd, Mariposa, CA
Built 1980 Load: 54.4 t ADT: 25
INTERSTATE 40
FairOver: SOUTH FORK PIUTE WASH
08-SBD-040-R134.00, San Bernardino, CA
Built 1971 Load: 54.4 t ADT: 8,750
INTERSTATE 40
FairOver: SOUTH FORK PIUTE WASH
08-SBD-040-R134.01, San Bernardino, CA
Built 1971 Load: 54.4 t ADT: 8,750
CECILVILLE ROAD
FairOver: NORTH FORK SALMON RIVER
S/O SALMON RIVER ROAD, Siskiyou, CA
Built 1985 Load: 54.4 t ADT: 116
EAST-WEST RD
FairOver: LOST RIVER
1.8 MI W SR 139, Siskiyou, CA
Built 1984 Load: 54.4 t ADT: 827
GRIDER ROAD
FairOver: GRIDER CREEK
2.7 MI S SR 96, Siskiyou, CA
Built 1976 Load: 54.4 t ADT: 94
FRENCH CR RD
FairOver: FRENCH CREEK
3.7 MI S SR 3, Siskiyou, CA
Built 1986 Load: 54.4 t ADT: 245
N FAIRFAX AVE
FairOver: OUTSIDE CANAL
3 MI N/O NEES AVE, Fresno, CA
Built 1981 Load: 54.8 t ADT: 200
DAVIDSON AVE
FairOver: COLONY MAIN CANAL
0.6 MI S VALERIA AVE, Fresno, CA
Built 1976 Load: 54.8 t ADT: 150
STATE ROUTE 86 NB
FairOver: BARLEY DITCH
11-IMP-086-44.78, Imperial, CA
Built 1977 Load: 54.8 t ADT: 5,600
INDIAN ROCK RD
FairOver: YUMA MAIN CANAL
0.74 MI W/O PICACHO RD, Imperial, CA
Built 1978 Load: 54.8 t ADT: 1,015
AMHERST ST
FairOver: LIVE OAK WASH
0.2MI W/O GAREY AVE, Los Angeles, CA
Built 1977 Load: 54.8 t ADT: 204
AVE 15
FairOver: M I D CANAL
0.25 MI W RD 29, Madera, CA
Built 1977 Load: 54.8 t ADT: 574
N15-E10 CONNECTOR
FairOver: UP RR & AMTRAK
08-SBD-015-2.15-ONT, San Bernardino, CA
Built 1978 Load: 54.8 t ADT: 27,000
SORRENTO VALLEY BL
FairOver: SOLEDAD CANYON CREEK
0.05 MI S/W SORENTO VL RD, San Diego, CA
Built 1966 Load: 54.8 t ADT: 19,300
STATE ROUTE 172
FairOver: BATTLE CREEK
02-TEH-172-0.85, Tehama, CA
Built 1982 Load: 54.8 t ADT: 190
Showing 16,651-16,700 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.