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<br />City of Centerville <br />Ordinance #8 <br />Effective 12/16/82 <br /> <br />38.03-1. Suitable drainage structures, culverts, storm sewers, ditches and related <br />installations shall be provided to insure adequate drainage of all points along <br />the streets. There shall be no surface or at grade cross street drainage. <br /> <br />38.03-2. Concrete curbs and gutters will be required on all streets. <br /> <br />38.03-3. The base course shall consist of latest Minnesota Department of Highways <br />approved material, bearing a seven (7) ton design and shall include a <br />geotextile fabric mat as specified by the City Engineer. <br /> <br />38.03-4. "Blacktop" paving as specified by the city Engineer shall be required on all <br />streets after water distribution lines, storm sewers and sanitary sewers have <br />been installed. <br /> <br />38.03-5. The boulevards shall receive three (3) inches of topsoil and be seeded. <br /> <br />38.04. SIDEWALKS. Paved sidewalks five (5) feet wide of Portland cement, <br />concrete or asphalt concrete may be required on one or both side of streets <br />designated as collector or arterial. <br /> <br />38.05. STORM DRAINAGE. The construction of a storm drainage system shall <br />conform to the following requirements: <br /> <br />38.05-1. Drainage ditches or channels shall have a minimum gradient of one (1) <br />percent. <br /> <br />38.05-2. Open watercourses shall have adequate capacity and erosion control to insure <br />safe and healthful disposal of storm water. <br /> <br />38.05-3. When topsoil has been removed from the surface of a lot on a slope where <br />erosion will cause a displacement of loose material, the subdivider shall be <br />required to seed or provide other means to prevent the wash from damaging <br />adjacent property or accumulating on street surfaces. <br /> <br />38.05-4. Design of storm drainage facilities shall be compatible with adjacent areas <br />including the extension of abutting existing storm sewers. Design of all <br />drainage structures shall be based on the five (5) year occurrence fro design <br />intensity using run-off co-efficient and concentration times as determined by <br />the City Engineer. <br /> <br />38.06. WATER SUPPLY. Where public water supply is available, as determined by <br />the Council, the subdivider shall connect to such public water supply and <br />construct a system of water mains with a connection for each lot. The <br />minimum size of water mains shall be six (6) inches and the minimum size of <br />private water services shall be one (1) inch. Water mains and services for <br />commercial and industrial uses or for the extension of major trunks shall be <br /> <br />Page 20 of 34 <br />