.010 Show Slopes. Those which would include slopes adjacent to or abutting arterial highways with elevations equal to or greater than said highways, entryways into developments, lot front setback areas, side portions of lot areas with slopes less than fifteen feet in vertical height or model complexes, etc., which need immediate and profuse beautification and protection.
.0101 Trees. Show slopes shall be provided with a minimum of forty percent tree coverage, except that all trees planted on slopes less than fifteen feet in vertical height are to be planted no greater than forty feet on center and are to be five gallon size minimum or at least six feet in height at the time of certification. All other slope trees shall be planted using one hundred percent one gallon size varieties or larger and thirty percent five gallon varieties or larger. Trees required adjacent to arterial highways (Section 17.08.354) may be included in the coverage requirement provided they meet all the provisions of the above section.
.0102 Shrubs. Show slopes shall be provided with a minimum of fifty percent shrub coverage. Such slopes must be planted with one gallon minimum size shrubs and must be a minimum of twelve inches in height or a minimum of twelve inches in spread at the time of planting.
.0103 Ground Cover. Slopes may be hand planted with spacing twelve inches on center to insure one hundred percent coverage in one year from the time of planting or may be planted by hydro-seeding utilizing approved mixtures which will insure one hundred percent coverage within one year.
.020 Living Area Slopes. Those which would include slopes adjacent to or abutting arterial highways with elevations lower than said highways, between groups of continuous lots such as those of a planned unit development, side portions of lot areas with slopes greater than fifteen feet or rear portions of lot areas not adjacent to a street.
.0201 Trees. Living area slopes shall be provided with a minimum of thirty percent tree coverage. Such slopes shall be planted with one hundred percent one gallon size or larger trees and thirty percent five gallon size or larger trees.
.0202 Shrubs. Living area slopes shall be provided with a minimum of fifty percent shrub coverage. Such slopes shall be planted with one gallon minimum size shrubs.
.0203 Ground Cover. Slopes may be hand planted with spacing twelve inches on-center to insure one hundred percent coverage in one year from the time of planting or may be planted by hydro-seeding utilizing approved mixtures which will insure one hundred percent coverage within one year.
.030 Community Slopes. Those which would include slopes adjacent to schools, parks, commercial sites, etc., side yard and rear portions of lot areas adjacent to local streets or slopes which may be viewed from arterial highways.
.0301 Trees. Community slopes shall be provided with a minimum of forty percent tree coverage. Such slopes shall be planted with one hundred percent one gallon size or larger trees and thirty percent five gallon size or larger trees.
.0302 Shrubs. Community slopes shall be provided with a minimum of thirty percent shrub coverage. Such slopes shall be planted with one gallon minimum size shrubs.
.0303 Ground Cover. Slopes may be hand planted with spacing twelve inches on-center to insure one hundred percent coverage in one year from the time of planting or may be planted by hydro-seeding utilizing approved mixtures which will insure one hundred percent coverage within one year.
.040 Transitional Slopes. Those which would include slopes immediately adjacent to permanent natural (native) areas, casements, extremely difficult natural terrain, undevelopable land, etc., or railroad rights-of-way and freeways.
.0401 Trees. Transitional slopes shall be provided with a minimum of twenty percent tree coverage except that trees planted on slopes less than fifteen feet in vertical height are to be planted no greater than forty feet on center. Such slopes shall be planted with one hundred percent one gallon size or larger trees and thirty percent minimum five gallon size trees.
Trees required adjacent to freeways, expressways and railroad rights-of-way (Section 17.08.354) may be included in the coverage requirement, provided the material used complies to show slope recommended varieties, would meet all the provisions of the above section and are planted on the slope abutting the top of said slope.
.0402 Shrubs. Transitional slopes shall be provided with a minimum of fifty percent shrub coverage. Such slopes must be planted with one gallon minimum size shrubs. Up to forty percent tree coverage may be substituted for shrub coverage where desired.
.0403 Ground Cover. Slopes may be hand planted with spacing twelve inches on-center to insure one hundred percent coverage in one year from the time of planting or may be planted by hydro-seeding utilizing approved mixtures which will insure one hundred percent coverage within one year.
.050 Native Slopes. Those would include slopes immediately adjacent to public recreational areas such as golf courses, permanent native preserves and lakes, etc. This slope designation requires the prior approval of the Development Services Department.
.0501 Native slopes shall be planted with native and indigenous plant materials, sprinkled with a temporary irrigation system and maintained by the developer until such time as the plantings are permanently established. Said slopes may be planted in their entirety by means of hydro-seeding. (Ord. 3411 § 2 (part); April 1, 1975.)
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