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56 <br /> An opaque screen is intended to obstruct visual contact -- <br /> between uses and to create a strong impression of spatial, <br /> separation. A semi-opaque screen is intended to partially <br /> block visual contact between uses while maintaining a sense <br /> of spatial separation. <br /> in areas of dense mature forest, existing vegetation mav be <br /> And te. fulfill the buffer requirements. Where there is no <br /> gglating vegetation in the buffer area, or j . existing <br /> vegetation does not provide a sufficient buffer, additional <br /> plantiag shall be required. <br /> Compliance of planted vegetative buffers will be judged on <br /> thg basis of the average height and density of foliage of the <br /> subject species upon maturity. Compliance of existing <br /> vegetative buffers will be judged on the basis of field <br /> observation. Upon maturity, the semi-opaque or portion of <br /> the. intermittent visual obstructions should not contain any <br /> completely unobstructed openings more than ten (10) feet in•width. Suggested planting patterns to achieve the buffer <br /> standards are provided in the Appendix. New plant materials <br /> installed to satisfy the buffer requirements of Article <br /> 12. 6. 1 shall be installed and maintained in accordance with <br /> the provisions of Article 12.8. <br /> ‘. ‘ <br />