FIELD: construction.
SUBSTANCE: invention relates to construction and municipal services. Storm sewer system comprises a roadway, a sewer ring on the road shoulder, a drain grid on the ring and a sewer network. Sewage grid (1) on sewer ring is made in the form of strong and flat structure with arrangement of drain holes (2) around central opening (3) in it. In its opening (3) there is a device in the form of a strong frame with fixed rows of flat plates fixed inside it and fixing in it of a device fixed in the initial position, with possibility of rotation on ring loops for removal thereof from opening (3) of sewage grid (1) and laying on its surface at the beginning of melt water drain and return of device to initial position after termination of their drain.
EFFECT: higher carrying capacity of sewage grid in system of storm sewage for the period of runoff of melt water.
1 cl, 3 dwg
