SR 66 highlighted in red, with relinquished portions in pink.
Route information
Maintained by Caltrans
Length
32.321 mi[1][a] (52.016 km)
Existed
1974 (from US 66)[citation needed]–present
Major junctions
West end
SR 210 in La Verne
Major intersections
SR 83 in Upland I-15 in Rancho Cucamonga
East end
I-215 in San Bernardino
Location
Country
United States
State
California
Counties
San Bernardino, Los Angeles
Highway system
State highways in California
Interstate
US
State
Scenic
History
Pre‑1964
Unconstructed
Deleted
Freeways
← US 66
→ SR 67
State Route 66 (SR 66) is a state highway in the U.S. state of California that runs along a section of old U.S. Route 66 in Los Angeles and San Bernardino counties. It goes from State Route 210 in La Verne east to Interstate 215 in San Bernardino, passing through Claremont, Upland, Rancho Cucamonga, Fontana and Rialto along Foothill Boulevard. In San Bernardino, it is the part of Fifth Street west of H Street (at the Interstate 215 interchange).
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Global Information
SR 210 in La Verne
SR 83 in Upland
I-15 in Rancho Cucamonga
I-215 in San Bernardino
