This report provides a simplified method to be used for evaluating the skin friction and tip resistance of axially loaded drilled shafts. A summary of literature and current practice was completed and then a comprehensive set of field and laboratory tests was performed. Several soil samples were collected from different sites from Arizona and surrounding states. Large scale direct shear apparatus was developed and used to determine the friction between soil and concrete. Finite element analyses were conducted on several prototype cases to determine effect of soil parameters such as dilation on the skin friction values. A step-by-step simplified approach was introduced to determine the skin and tip resistance of drilled shaft foundations in gravelly soils. An example application was presented to guide users in utilizing the simplified approach.

This guide provides assistance to schools and those working with schools in establishing and supporting tobacco free policies. The first edition of "Full Spectrum" was released in 1998. The purpose of this second edition is to provide updated information, including the new Arizona law prohibiting use and possession of tobacco products on all school campuses, and to provide revised policy information reflecting the new law. Includes how to set up policies, examples of policies, new legal code on smoking on campuses, and programs for helping schools and students be tobacco-free.