All streets, roads and alleys shall be graded to their full widths by the subdivider, so that street pavements and sidewalks can be constructed on the same level plane. Deviation from this standard due to special topographical conditions will be allowed only with the approval of the City Council. Before grading is started, the entire right-of-way area shall be first cleared of all tree stumps, roots, brush and other objectionable materials and of all trees not intended for preservation. The subgrade shall be properly shaped, rolled and uniformly compacted to conform with the accepted cross-section and grades. In cuts and fills, all tree stumps, boulders, organic material, soft clay, spongy material and other objectionable materials shall be removed to a depth of at least two feet below the graded surface. This objectionable matter, as well as similar matter from cuts, shall be removed from the right-of-way area and disposed of in a manner that it will not become incorporated in fills or hinder proper operation of the drainage system.
(Prior Code, § 7.13)