According to a Twitter post this morning, Musk says the tunnel digging should start in "a month or so".
Musk has met with President Donald Trump, who has said he plans to spend $1 trillion on infrastructure projects, twice - once in NY, with other tech CEOs, and more recently in the White House, for a discussion on U.S. manufacturing with other company executives.
As with any Musk project - self-driving cars, human colonies on Mars - questions remain over whether laws, or simple scientific realities, could stymie such a project.
Elon Musk on Wednesday claimed his serious about digging a tunnel under Los Angeles, saying the plan will start in a month.
Elon Musk Says Tesla Aims to Cut Crashes by 90 Percent
This first phase includes adaptive cruise control, forward collision warning and Autosteer, which helps keep the auto in its lane. Elon Musk recently said that his company would not operate like other automobile companies that come up with annual upgrades.
It appears that, for now, Musk is going to dig a tunnel to cut down on his travel time between SpaceX and LAX.
Musk originally proposed he would "build a tunnel boring machine and just start digging" in December, later tweeting he is "actually going to do this". In case anyone didn't believe him, Musk followed up with "I am actually going to do this". Dubbing it "The Boring Company", the tagline would be "Boring, it's what we do". And with Trump's $1 trillion infrastructure plan that looks to rely heavily on private investment, it would seem Musk is the flawless guy for the job to shake up America's roads with tunnels. Elon Musk is now working with three companies and one non-profit project. "Its not that hard, but if you have tunnels in cities, it would massively alleviate congestion and you could have tunnels at all different levels; you could probably have 30 layers of tunnels and completely fix the congestion problem in high-density cities". His rocket company SpaceX has earned praise for its low prices.
It's unclear where the tunnel would lead.