Ọwa mmiri mgbochi okporo ụzọ
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Ọwa mmiri na-egbochi okporo ụzọ Maka Mkpọpu mmiri nke Driveway
Curb drainage channel bụ nkume mgbochi nke nwere ọwa mmiri na-agbapụta n'akụkụ okporo ụzọ, ya mere a na-akpọkwa ya drainage kerb.Enwere ike itinye ọwa mgbochi mmiri na pavement siri ike nke chọrọ ọgwụgwọ drainage, dị ka ebe a na-adọba ụgbọala, ọdụ ụgbọ ala na ebe eji nwayọ nwayọ maka ụgbọ ala.Ọkwa ibu nke sistemu nwere ike iru D400.
Isi elu nke mgbochi mmiri usoro: 305mm, 500mm.
