FIELD: hydraulic equipment.SUBSTANCE: invention relates to hydraulic engineering, in particular to closed spillways, and can be used to eliminate deep pools and other water bodies, arising after heavy rains or melting of snow, that is, for draining a flooded city, as a replacement-alternative and working in parallel with the already established “City Storm Sewerage” that cannot cope with its functions. Emergency storm sewers include additional lines of vacuum spillways that are identical in design to the main vacuum spillway, spillways with a higher location “above sea level” A.S.L. have a smaller cross-section of pipelines than the second row, and each subsequent row has a relatively larger cross-section of pipelines, but in general, the cross section of the lower large pipeline is equal to the sum of the cross sections of all the upper pipelines connected to it, the pipelines of vacuum spillways are installed inside the already existing tunnels of storm sewers and are rigidly fixed to the walls of t
