Easements at least twelve feet in width along the rear lot line and ten feet in width centered along the side lot lines shall be provided where necessary for sanitary sewers, gas mains, water mains, electric lines and storm sewer. Easements shall also be provided as required by the City Planning Commission along every watercourse, drainage channel or stream within a subdivision.
All plats shall contain a restriction requiring that no structure, planting, etc. will be permitted in the easement area.