Technical Resource Guide_WEB_BEL25-D-516650 - Page 34 of 84

34 | belgard ® product installation guide | belgard.com | 877-235-4273 Stepped Base Start Here STEPPING UP THE BASE AT LOWEST POINT Walls built on a sloping grade require a stepped base. Begin excavation at the lowest point and dig a level trench into the slope until it is deep enough to accommodate the base material and the height of two entire blocks. A minimum embedment of 6 inches is required at all times. STEP-UP At this point, step up the height of one block and begin a new section of base trench. Continue to step up as needed to top of slope. Always bury at least one full unit at each step, maintaining a minimum embedment of 6 inches at all times. STEPPING UP THE BASE USING THE U START BASE BLOCK Walls built on a sloping grade require a stepped base. Begin excavation at the lowest point and dig a level trench, 24 inches wide, into the slope until it is deep enough to accommodate the base material, the base block and enough depth to maintain a minimum of 6 inches of embedment after stepping up. See Diagram 9. Diagram 9 – Drainage 6" Minimum Compacted Granular Base Leveling Pad Native Soil Base Block 6"