unsigned state route. The old route became part of State Route 85, State Route 237, part of State Route 17 (now Interstate 880), State Route 262, Interstate 680, and State Route 238. State Route 10 was replaced by State Route 42 several years before the 1964 renumbering, due to the closeness of Interstate 10. State Route 11 was relocated onto a freeway. The old route became State Route 159. State Route 12 was relocated along an unconstructed route. The old route to SR 1 became part of State Route 116 State Route 14 replaced part of U.S. Route 6. Former SR 14 became part of State Route 91. State Route 15 was replaced by State Route 7 because of Interstate 15. State Route 18 replaced part of State Route 30 south of Big Bear Lake. The old route became part of State Route 38. State Route 24 was truncated and relocated along an unconstructed route; the old route was replaced by State Route 242, State Route 4, State Route 13, State Route 160, State Route 16, State Route 113, State Route 99, and State Route 70. State Route 26 replaced State Route 8 because of Interstate 8. Former SR 26 became part of Interstate 10 west of Downtown Los Angeles, and the remainder was deleted from the system. State Route 29 was rerouted along part of State Route 53 and along a formerly unsigned state route. The old route became part of State Route 175. State Route 30 was truncated, with one part being replaced by rerouted State Route 18. State Route 33 was extended south along U.S. Route 399. It was rerouted along a formerly unsigned route. The old route became State Route 207. State Route 35 replaced State Route 5 because of Interstate 5. Former SR 35 became Interstate 605. State Route 37 was rerouted over Former SR 48. The old route became State Route 121. State Route 38 had extended west over part of State Route 18. State Route 41 had been rerouted over part of U.S. Route 466. The old route became part of State Route 46. State Route 42 had replaced State Route 10 several years before the 1964 renumbering, due to the closeness of Interstate 10. State Route 46 replaced part of U.S. Route 466 and part of State Route 41. State Route 48 was reassigned to part of State Route 138 and a