Article II — MINIMUM FILL GRADING

This article shall apply to single lots and perimeter lots of multiple lot projects where it is necessary to provide fill materials to elevate at least thirty percent (30%) of a building pad to provide that the site drain to the street with a minimum drainage swale gradient of one percent (1%). (Prior code § 86101)

For grading lots abutting streets having a slope of one percent (1%) or less:

A. Such lots shall have drainage gradients not exceeding 1.25 percent, nor shall the drainage gradient be less than one percent (1%) in all areas;

B. The slope of the finish grades adjacent to a dwelling or structure may differ from these specified gradients if the soils engineer determines that the specified one percent (1%) to 1.25 percent gradients are not adequate for proper drainage, or, if in the opinion of the building official, steeper grades are necessary to provide drainage from the building foundations;

C. The lot may drain to the street at any location of the lot frontage. (Prior code § 86102)

For grading lots abutting the intersection of two (2) streets (corner lots), each street with a slope of one percent (1%) or less, such lots shall be graded according to the criteria of section 18.212.080 of this chapter. (Prior code § 86103)

For grading lots abutting streets having a slope in excess of one percent (1%), such lots shall conform with subsections 18.212.080A and B of this chapter, except that the building pad shall be no higher than is necessary to drain the lot to any location of the lower fifty percent (50%) of the frontage of the lot. (Prior code § 86104)

For grading lots abutting the intersection of two (2) streets (corner lots) with one or both streets having a slope exceeding one percent (1%), such lots shall be graded so the pad will be no higher than necessary to drain the lot to any location to the lower fifty percent (50%) of the frontage abutting the street with the steepest slope. (Prior code § 86105)