This project proposes an interchange at the existing SR 99 and Southgate Avenue at-grade intersection located within the City of Chico. The purpose of the following Project Study Report (PSR) is to identify and evaluate alternative designs for a new interchange connection with SR 99 at the existing Southgate Avenue at-grade signalized intersection. The completion of the PSR will allow the City to provide proposed developments with future right of way requirements and to begin to plan for future transportation funding needs.