If we reach the point where the enemy will destroy all the bridges in Kiev, then the ferry crossings will also be destroyed, - the presidential adviser invaded.
A tunnel is needed in Kiev under the Dnieper. And not just as a military object. The terms of construction with the support of foreigners are several years.
Ferry crossing. On the scale of Kyiv - only an emergency solution for important cargoes. Bandwidth is zero conditional. Hanging from docks with access ways. Docks are vulnerable to mortars and missiles.
Pontoon crossing. Requires logins and exchanges. In a critical situation, it will help in delivering an important cargo. Minus: Violated by one Shahad.