Wikipedia talk:WikiProject U.S. Roads/Idaho/highway numbers

According to, which may be off, and a few maps and the minutes, numbers were assigned as follows:
 * 1929: 1-40 (these were assigned in an obvious pattern)
 * 1934: 41-45
 * 1935: 46-48
 * 1937: 49-50 (50 is the highest on a 1937 map)
 * 1938: 51-53 (53 is the highest on a 1940s map)
 * 1953, every state highway received a number: known additions are 54-58, 61-62, 66, 68-70, 72-77, 79-80, ...I'll get back to this

--NE2 15:38, 10 May 2008 (UTC)