4818 BELVEDERE AVE 2016-01-01 MF Import

Novemlxr 9, 200G Single-�amily Residcncc - [3elvedere Lot 4 l.&A Job Nu. GA 149 1'ngc 12 SLAB-ON-GItADE FLOORti Slab-on-grade floors, if used, shoulJ be placcd on firm subgrade soils prepared as outlined in thc SITE PRI31'ARATION AND GGNBRAL EARTHWORK and the STRUCI'URAL FILL sections of this report. Where moisture control is critia.i, the slab-on-grade floors should be placed on a capillary breuk which is in tum placed on the c,�mpacted subgrade. 7�he capillnry break should consist of u minimum four-inch-thick laycr of free-draining gravel or crushed rock containing no morc than 5% by weight passing thc No. 4 sicvc. A vapor barricr, such as u 6-mil plastic membrane, may be placed ovcr the capillury brcak, as reyuircd, to kcep moisture Gom migrating upwards. DNIV!�:WAY PAVI?MI?N'1' Perfiirmance of driveway pavement is critically rclated to the conditions of the underlying subgrade soils. We rec�mmend that thc subgrade soils within the driveway be trcated mid prepared as dcscribcd in thc SITF: 1'RGPARATION AND GENERAL GARTHWORK section of this report. Prior to placing basc material, the subgrade soils should be compacted to u non- yielding state with a vibratory roller compactor, and proof-rolled with a picce of heavy construction eyuipment, such as a fully-loaded dump truck. Any areus with excessive weaving or deilection should bc over-cxcavated and re-compacted or replaced with a structural fill or crushed rock placed and compacted in uccordance with the rccommcnJations provided in the S'IRUCTURAI, PI1.1, sectiun of this rcpart. DRAINAGE CONTROL Ruildin� Footprinl F.xcavation We do not anticipate 3roundwater lo be encountered by building footprint excavation. However, if encountered, the tx�ttom of excavation should tk sloped nnd ditches excuvated along the bases of'cut banks to intercept and Jirect groundwaler into a sump pit fro:n which water can be pumped aut uf thc huilding liiotprints into a ne.lrby storm sewer. A layer of 2-inch crushed rcek should LIU & ASSOCIATES, INC.