Transportation Engineering at RB&G Engineering has included a wide variety of rural and urban construction and reconstruction projects. In recent years, experience has centered on the reconstruction and widening of existing facilities, primarily in urban settings. One of the crucial aspects of roadway and storm drain design in urban settings involves the research, identification and relocation of existing utilities. The RB&G design team experience on these types of projects and our understanding of the critical needs of designing in the urban environment puts our team well ahead of the learning curve, which enables us to maximize productivity and meet project schedule and budget considerations. The designs for more than 25 of these types of projects have been completed by the current staff for municipalities and UDOT in just the past ten years. Many of these roadway projects included the design of new or replacement/upgraded traffic signals. While we do not generally perform extensive traffic analysis, such as for regional studies, our staff is qualified to complete intersection analyses and more localized studies.
RB&G’s in-house geotechnical engineering capabilities are unique among civil engineering firms of our size, and allow seamless incorporation of foundation considerations into our roadway designs. We have extensive experience completing pavement designs for UDOT, UDOT Local Government, municipal roadway, and airport projects, including use of AASHTO’s DARWin-ME software and UDOT’s load calibration factors. Our approach to pavement design begins with a review of existing pavement conditions to plan and perform a targeted geotechnical investigation that characterizes the subsurface soil and groundwater conditions in critical areas. We can also provide recommendations to aid in constructability, including details to stabilize soft subgrade soils and to help accomplish necessary dewatering. Subgrade stabilization and drainage methods and materials such as over excavation, geotextiles, geogrid, tamped cobbles in localized areas, stabilization rock, and underdrains have been successfully used in our past project.