Fun with Highways: California Highway 114 (?)

I find myself on US 101 at least once a week for work, heading south from San Francisco to Palo Alto. A couple of weeks ago a started noticing a new route marker in a construction zone near East Palo Alto for Highway 114.

Highway 114? I did know there was such a thing. It turns out it is in fact a define short route along Willow Road between 101 and CA 84, leading to the Dumbarton Bridge, as described at  It is only about one mile long.

I was also not familiar with 109, which runs along University Avenue in East Palo Alto but is unsigned.

So I wonder why 114 suddenly became signed as a detour route during this construction project? Is it perhaps a legal requirement, or maybe it will be signed in the future?


3 Responses to “Fun with Highways: California Highway 114 (?)”

  1. AVCr8teur Says:

    I never noticed that. I’m going to have to keep my eye out for that “new” highway. I’m sure it confused lots of other people too.

  2. Tillie & Georgia Says:

    Hard to know what the officials have in mind .
    Maybe they just like to keep people on their toes ;)
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  3. Palo Alto Homes For Sale Says:

    I have been driving 109 and 114 all this time and I had no idea. 109 is my main route to get from Palo Alto to the East Bay.

    Who knew?