A private company is offering to build a gondola system from LA's Union Station to Dodger Stadium. Depending on the route they take, that should be 1.5 to 2 miles long. It's just a proposal for right now, but the company is offering to build it using all private money (with a little ROW help from the city). If they get proper approvals and go through with the $125m plan, they could be up and running by 2022.
https://la.curbed.com/2018/4/26/1728...-union-station