|Strait of Kerch Bridge
This is not the first attempt to build a bridge across the Strait of Kerch. When the British Empire was still expanding, an attempt was made to build a bridge from England to India across the Strait of Kerch, but it was determined to be too expensive. Russia's first attempt to build the bridge was at the beginning of the 20th century before the revolution put an end to their plans. The Russians got another chance at the end of WWII but the bridge was soon destroyed by ice floes across the Strait.
Rotenberg is Putin's childhood friend. Putin apparently only trusts his friends to run Russian industries. According to the New Yorker article, the Russian economy is a form of feudalism where all the chiefs of industry are one step away from the seat of power.
Large diameter steel pipe piles were driven into the sea bed and two column bents were cast on top. Big steel truss superstructure spans were built on land, carried to their location by barge, and lifted onto the bents. What bothers me from looking at the top photo is that there are no bent caps or lateral bracing between the columns to provide lateral strength and resistance to the structure. Hopefully, they are going to be built later. A pair of steel arch spans will eventually be built over the shipping channel, as shown in the computer generated image below.