States that organize their state route numbers

Started by mrpablue, May 06, 2018, 10:24:41 PM

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mrpablue

May 06, 2018, 10:24:41 PM  
I know Washington has a parent-auxiliary system and a numbering grid in their SR system. Do any other states have any kind of patterns in their SR system?

corco

#1
May 06, 2018, 10:52:46 PM  
Yes

Alps

#2
May 07, 2018, 11:17:59 PM  
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