There are definitely reports of angry organized Russian groups derailing train cars carrying weapons and troops. A figure of 80 incidents was mentioned. Putin was proud of finally getting this 100 year project finished. It goes across the Kersh Peninsula which leads to Russia on the south side of the Sea of Azov. I did some research on the whole bridge project.
I have a negotiating proposal for getting Russia out of Crimea without a lot more fighting and destruction. Allow Russia to rent it’s current port facilities after all their warships, airplanes, military supplies, and soldiers are removed, and then permit use for commercial shipping. This would answer Russia’s desire for a warm water port and provide income to Ukraine. Also allow Russian tourists to cross the bridge with paying a modest toll. Currently there is none. Many Ukranians have left Crimea, and many Russians have moved in. Legal measures to correct ownership would be and important part of any settlement.
Of course Russia should leave Crimea and all other occupied locations in Ukraine. However, offering Putin some credit for bringing this project to completion might sooth his ego enough to allow civil negotiations. This is the longest bridge in Europe. It has 4 traffic lanes and 2 rail lines. It took more than a hundred years of off and on planning and negotiating to get it built. Prehaps Putin could be persuaded to negotiate in order to get public credit for doing one good big thing in his lifetime.
Just a thought. Other negotiating ideas needed too.