Project implementation period: 2006–2011
Customers: Rosstroy, Metrostroy, JSC
General design engineering company: LenmorNIIprojekt, JSC

Construction of the complex facility for protection of Saint-Petersburg from floods has started in 1979. In December 1984 the Kotlin island was connected to the mainland (from the northern side). However in the end of 80-s the construction process was suspended. Further construction of the complex facility has started in 2001, financed by the federal investment program and credits of EBRD and other institutions. In frameworks of this project Kompakt, JSC has accomplished works for construction of the complex facility for protection of Saint-Petersburg from floods: construction of the navigation pass S-1, a part of the tunnel transition under the pass and a part of the D-4 dam.