The project “Construction of a Washing Station at the TCh-31 Domodedovo Multiple Unit Depot” is part of works under the common title: “Construction of a Multiple Unit Depot for Maintenance of Electric Trains at Podmoskovnaya Station of the Moscow Railway and Setting Up Servicing Stations at the Existing Multiple Unit Depots of the Moscow Railway Hub”. The purpose of the latter is to create a depot infrastructure for maintenance, servicing and external washing of Desiro trains at the Moscow Railway Hub.

According to the design specification, the TCh-31 Domodedovo Multiple Unit Depot will have a covered heated washing station to provide external washing of both Desiro trains and existing electric trains attached to the depot.