COM 1480.016 2006-2008 - Laserfiche WebLink

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Section 10-19. Distance from property line of cut or fill slope. (a) The horizontal distance from the top of a cut slope or the bottom of a fill slope to the adjoining property line shall be as follows: Height of Cut or Fill Distance from Property Line (in feet) Zero feet to 4 feet 2 More than 4 feet to 8 feet 4 More than 8 feet to 15 feet 6 More than 15 feet 8 These requirements may be modified by the director of public works when cuts or fills are supported by retaining walls, approved by the director, or when the permittee submits an engineer's soils report stating that the soil conditions will permit a lesser horizontal distance without causing damage or danger to the adjoining property. (b) A retaining wall of six feet and over, or as otherwise provided by the County building code, shall be designed by an [a--gre€essienal] engineer when deemed necessary by the director of public works. Setback requirements of the County zoning ordinance are referenced herein and the State land use commission and County zoning ordinance and other agencies' requirements on shoreline improvements shall be complied with. Section 10-20. Maximum cleared area. The maximum azea of land that may be cleared for grading or grubbing is fifteen acres. Noncontiguous increments may be worked on concurrently provided that no single graded area exceeds fifteen acres and the work is in conformance with an annroved NPDES permit. The azea of land that may be cleazed may be reduced by the director of public works to control pollution and minimize storm damage. However, if soils, hydrologic, climatic and construction conditions warrant, and adequate erosion and sedimentation control measures are taken, the director of public works may authorize additional area to be opened. Additional area shall not be cleared for grading or grubbing until erosion and sedimentation control measures to prevent dust or erosion problems in the area already graded or grubbed have been undertaken incompliance with the requirements of this chapter. Section 10-21. Fill materials. (a) The fill material may consist of rock, gravel, sand, soil, or a mixture thereof. Except for slopes, the fill shall be compacted to minimum ninety percent of maximum density as determined by the ASTM soil compaction test D1557, as amended. The director of public works shall inspect the work and may require adequate inspection and compaction control substantiated by test results by an engineer qualified to prepare an engineer's soils report. These requirements may be modified by the director of public works if the permittee submits an engineer's soils report substantiating with appropriate investigation and analysis that the required ninety percent compaction density may be lowered without causing excessive settlement, creep, or stability problems. (b) Before placing fill or stockpiling, the natural ground surface shall be prepared and, if required by the director of public works, shall be keyed by a series of benches. No fill -14-