Speaking of roads in Hawaii, here's an entry from Oscar Voss's infamous Hawaiian Highway website.
"A straightaway on the Kaumualii Highway in southwest Kauai near mile 30, approaching the junction with Tartar Drive to the National Bureau of Standards' WWVH radio station for broadcasting time signals. (May 2003, photo courtesy of Craig Seufert)"
Please check Ozzie's Hawaii highway site out-highly recommended!