[4] The tunnel starts between the Dominguez Channel storm drain and Crenshaw Boulevard at an entrance pit constructed on parking lot land owned by SpaceX.

[5] On December 17, 2016, Elon Musk, the founder of the Boring Company, stated that he was frustrated with traffic jams, and would start building a tunnel.

[7] On January 31, 2018, The Boring Company acquired the land around a family house at 3834 West 119th Place for $500,000.

[10] On October 5, 2018, the Hawthorne City Council granted an easement for up to 2,600 meters (8,600 ft) of tunnel, in exchange for a structural encroachment fee of $2.5 million.

Permission for the first 210 meters (700 ft) of tunnel under SpaceX's own land had been obtained earlier.