Buried municipal infrastructure is rapidly expanding due to increased urbanization. Subsequently, engineers and contractors are faced with having to designate the most effective method of installing new buried infrastructure while being mindful of cost considerations. In order to determine the most feasible underground construction method, various risks and cost factors must be assessed and analyzed. A comprehensive survey was conducted at Arizona State University to solicit input from twenty-eight contractors in various geographical regions throughout the United States and Canada. The intent was to determine specific risk factors and their inherent impacts, as well as to quantify cost comparison between Horizontal Directional Drilling (HDD) and traditional open cut construction methods. This paper identifies and describes risks and cost factors that were subsequently used to create a planning tool for small diameter pipelines in an urban environment.