The Russian Ministry of Emergency Situations has recently claimed that 1/3 of Ukrainian protective shelters are not ready for evacuation of people. In fact 95% of shelters are not ready for something... Older generations know better what is hidden behind the ground,
young people luckily do not even care that under almost every yard is a protective construction that may save a human life in case of technogenic accidents. Let's see how such a construction should look like by the example of one Kiev shelter.
The legendary ice-breaker "Baikal" was considered to be the second largest and most powerful ice-breaker while its construction. By the end of the XIX century they could not end the construction of the Siberian railway, Baikal was the breakpoint. So in 1883 Julius Witte, the secretary of finance, offered to arrange ship crossing over Baikal. In
1885 they decided to build an ice-breaking ferry. 12 plants participated in the construction: Soviet and foreign ones. The ice-breaker travelled much from place to place being tested, assembled and dissassembled... In fact it was mainly built by constructors from St. Petersburg. They used the best Martic steel to build it.