Blowing up the dam cut off water to Crimea and will force many Russians out, if they can get out. Crimea was the Russian vacation land and with heat waves they will miss it for a long time.
Russian tourist chats are full of panicked Russians who did not get the vacation they desired.
I've translated some of their posts below.
"Important information for those who are going to get out of Crimea by land route. The most important thing is to stock up on the necessary amount of water. Local "entrepreneurs" decided to take advantage of this situation and in order to enrich themselves increased the price by 8-10 times!
Being on the territory of Crimea download offline maps, on the territory of Kherson, Zaporizhzhia, Donetsk regions, you can use mobile communication only if you have a SIM-card Phoenix, but there is an option to buy it right in the queue in front of the checkpoint, there they sell them for 2000 rubles.
The situation with toilets is also miserable, free toilets at petrol stations have been closed, they justify themselves by saying that the influx of people is too large, you can make an agreement for 500 roubles, for children, pregnant women, disabled people and participants of the SMO the price is 400 roubles".
"The first border has been passed. Customs. We fuelled up at the last Lukoil petrol station, but there are no toilets there. There are big traffic jams in the opposite direction, towards Rostov. Documents and passports and child's birth certificate were checked at the checkpoint. At the customs there is a toilet and a lot of people on foot with their bags, their bags are checked there like at the airport. For those with cars, only the documents."
"Why didn't they say they guarantee safety on the land road to Crimea, if they can't protect the Crimean bridge, and it's a 50/50 ride there?"
"Yes, Megaphone [cellphone service provider] is completely dead, it doesn't show anything."
"Just yesterday I was thinking what a moron one should be to go on holiday to Crimea now.
Well, now the holiday will definitely be remembered when they go home through the front.
They are disrupting the logistics of our military with traffic jams, stupid faggots."
"One thing that annoys me is that after the first time, the competent authorities swore that ordinary people have nothing to fear, that now combat dolphins, medusas, shrimps and plankton guard the bridge 50 hours a day. F**k, how did that happen? !!!!!! Did they screw up again? !!!!!!!!"
"Are there gas stations along the road in the new territories?"
Sure
Bandits, too, not just gas stations".