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AASHTO Route Numbering Database Documents

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Mapmikey:
There is a 1973 document discussing the elimination of (most of them are in here) suffixed interstates.  Some stuff floated in here that was news to me.

Apologies if this is on the forum elsewhere...

Some nuggets...
I-80N out west was supposed to become I-86 (I-11 and I-13 were floated if duplication was not desired)
I-80S to Denver was supposed to be I-78 (or I-23)
I-275 tampa area was supposed to be I-75W or I-175
I-57 to Green Bay was supposed to become I-39
I-30 was supposed to replace I-35E southwest; I-645 was supposed to come into existence...

Go to the AASHO database - https://grmservices.grmims.com/vsearch/portal/public/na4/aashto/default
 search "other" and 1973 (don't select a state).  2 items appear...it is the one that is NOT the DC one. 

CNGL-Leudimin:
Also I-31 and I-231 were to be things.

And I-94 on the Crosstown? No way!

kurumi:

--- Quote from: Mapmikey on February 25, 2022, 09:47:31 PM ---There is a 1973 document discussing the elimination of (most of them are in here) suffixed interstates.  Some stuff floated in here that was news to me.

--- End quote ---

This was a neat find. Other new numbers proposed in the doc:

I-216 Macon, GA
I-230, I-245 Dallas
I-31, I-231 Wichita
I-274 Quad Cities
I-215 Pocatello

TheHighwayMan394:
One of the suggestions to go in tandem with renumbering 35E/W in the Twin Cities was making 494/694 into one number, possibly as a navigation aid but doesn't specify a reason (something Beltway often complained about when he posted here was its alleged uselessness for I-35 traffic).

route56:
I have to wonder if the SHC/KDOT had objections to the proposed I-31/I-231. Had this proposal been implemented, K-31 would need to be renumbered (the change of I-35W to I-135 did result in K-135 being redesignated K-152)

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