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I-480 Golden Gate Freeway

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Max Rockatansky:
Digging through the AASHTO Database I found some references to what the Division of Highways wanted assigned to the Embarcadero/Golden Gate Freeway corridors:

-  Originally the Division of Highways wanted Interstate 110.  There are some strange numbers that California requested for short urban routes that don't appear to be consistent in any way with the Interstate grid.
-  At some point the Division of Highways wanted Interstate 380.  This ended up being changed to proposed Interstate 3 which also included what would be become Interstate 280 and the never built 19th Avenue Freeway.  A lot of the early proposals for Interstate Numbers by California were intended to avoid numbering duplications.
-  During November 1958 the AASHTO more or less told the California State Highway Engineer that Interstate 480 was assigned to the Embarcadero/Golden Gate freeway corridors.

(This has to be one of the most productive sick days Iíve had in quite some time.)

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