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C A S E S T U D Y - Keystone

C A S E S T U D Y - Keystone

C A S E S T U D Y -

LAND DEVELOPMENT Norris Canyon Estates San Ramon, California The Norris Canyon Estates of San Ramon, California are gaining a local presence not merely for luxury homes, but also for the approximately half million square feet of multiple-tiered Keystone walls built throughout a challenging terrain. A location with 1:1 slope ratios and expansive clay soils required a major transformation to make the area suitable for development. A local jurisdiction stating that walls on the project could not be taller than five feet further complicated matters. Multiple-tiered walls were designed to blend with the natural settings and also accommodate the wall height restriction. With some walls up to 10 terraces deep and reaching 30’ in total height, global stability became a major concern. For the project’s entirety, more than 10 years, the Keystone Standard Unit has provided the perfect solution to overcome the extreme land challenges and create beautiful and structurally sound walls. Project: Location: Developer: Licensed Manufacturer: Product Used: Wall Area: Architect: Engineer: Contractor: Keystone Supplier: Norris Canyon Estates San Ramon, California Toll Brothers Basalite Concrete Products Keystone Standard Units Tensar Uniaxial Grid, Stratagrid 400,000 square feet Malant & Associates ENGEO, Inc. B.C. McCosker Construction ATCO Construction Products CASE STUDY

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