It is part of a Bering Strait railroad bridge/tunnel design. A big project, way bigger than the TransAlaska Pipeline.
Wouldn't this be cool? There's only about 8 miles between the Diomedes. Of course, getting it to that point would probably be the hard part...although...They built the Trans-Alaska pipeline in about 4 years: 800 miles of some of the roughest terrain in the hemisphere. I think it could be done. And it would boost the Russian economy like crazy. When we lived in Valdez during the construction of the TAP, there was SO MUCH MONEY being made it was ridiculous. The town went from 700 to 11,000 overnight. It had more banks per capita than any town in the US. Those construction stiffs and welders would come into a bank, cash a check for 7 12-hour shifts at about $35 per hour, and send all of it but about $100 to their families "Outside." Made the Alaskans mad, but it sure boosted the national economy for a while...