Elon Musk’s tunneling company will begin assessing its ability to construct a mile-long underground tunnel in South Dallas after a proposed project in the area was one of three winners of a company contest on Tuesday.The Boring Company has built a number of underground tunnels across the United States for public and industrial use, including in Austin and Bastrop. In January, the company announced an open call for new tunnel proposals up to a mile long, with the offer to build the winning submission at the ...