According to Russia’s Ministry of Emergency Situations, in the event of a nuclear attack on Moscow, there is space in underground facilities for all of the population. While this is a very bold claim, Moscow is famous for the massive amount of bunkers it has available for Civil Defense (гражданской обороны) and the military. The average Muscovite usually has an odd story or two about how bunkers have popped up in their daily life. But what types of bunkers are there? How protected are they?
On the largest level, the bunkers in Moscow can be classified into four types: basement, metro, metro-2, and sphere. The first two types are largely used for Civil Defense. The last two are primarily used by military and government agencies.
The largest and most famous civil defense system in Russia is the Moscow Metro. The metro is specifically engineered to protect against nuclear attack, boasting not only depth but reinforcements on the tunnels and blast doors that allow for a total seal against blast pressure and fallout. These doors are usually restricted to the main stations, outlying stations may have less or no blast protection.
Newer stations are usually built with blast protection using modern military methods. Notably, the “Park Pobedy” station is built using armablocks and utilized upwards excavation for shafts. Normally, shafts are excavated downwards from the surface, but upwards excavation minimizes the likelihood of satellite reconnaissance finding the locations of shafts as the construction equipment and spillage cannot be seen if it is underground.
In addition to the metro, various other civil bomb shelters are dotted around Moscow. These shelters are usually fairly shallow and feature limited protection from the overpressure of a blast. Their presence is usually found by the presence of various chimneys and air vents that feed fresh air into these bunkers. Some of these shelters have been repurposed into businesses and parking lots. These are generally of the “basement” type.
Details for these bunkers are public knowledge, as there are documents describing the minimum specifications. All bunkers must be able to survive an airblast of up to one hundred kilopascal and have stores of food and water for two days. Air filtration systems also are standard. Power generation is also provided to run the air filtration and lighting systems.