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

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Locations	Idaho

According to [1], 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