The presentation of this work includes a proposal of a complete cut sewer system for village Modrany. My work contains texts, pictures and the drawing part. Affluent sewage is stated by the resolution No 684/2006. The total length of the propoed sewage sewers is 5271,6 m. The minimum fall of sewage sewers is 5,00 mille, the maximum 72 mille. The sewer pipes are designed from ribbed PP. Sewage sewers are made in its entirety from pipes with rating calibre DN 300. Considering the flat nature of the territory water overdraw. Will be needed proposal for a pumping station is not the subject of this work.