Only part of the state highway system for about 25 years, SR 232 was added in 1967. The route started at Jct SR 231 a couple miles south of Valley and ended about 2 miles east at Jct US 395. SR 232 was dropped from the state highway system effective April 1, 1992.
The unposted legislative number used for this route from 1967 to 1970 was SSH 3U.
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