California State Route 31
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State Route 31 was a state highway in the southern region of the U.S. State of California but was eventually replaced by Interstate 15. It ran from State Route 91 and State Route 71 in Corona north and northeast to the split of Interstate 15 and Interstate 215 at Devore.
[edit] History
Legislative Route 193 was defined in 1933, running from pre-1964 Legislative Route 43 (now State Route 91) in Corona to pre-1964 Legislative Route 9 (now State Route 66, and was extended north to pre-1964 Legislative Route 31 (now I-15 and I-215) in 1935.[1] The piece south of U.S. Route 60 (Mission Boulevard), running along North Main Street, Hamner Avenue and Milliken Avenue, was state-maintained by 1955, but was not assigned a signed number.[2] This was still the only existing piece in 1963, and had a planned freeway replacement to the east.[3]
In the 1964 renumbering, the route was assigned the State Route 31 number. It was added to the Interstate Highway System in February 1972 as a realignment of Interstate 15 (the former alignment became Interstate 15E).[4] Legislative changes were made in 1974, eliminating SR 31 (along with State Route 71 south of Corona) in favor of I-15.[5] However, SR 31 continued to be signed - as TEMPORARY Interstate 15 - until present I-15 was finished. (A 1986 map shows state maintenance continuing north past SR 60 to Jurupa Street, where it turned east to I-15.[6])
