This presentation will discuss the background and ongoing design efforts of the Louisville MSD’s Northern Ditch Pump Station (NDPS) Replacement project. Louisville MSD is seeking to replace their existing 60 MGD sanitary lift station with a new 30 MGD station that will utilize a self-cleaning trench style wet well. This will be Louisville MSD’s second sanitary pump station with a trench-style wet well design. The feature that makes the trench-style wet well so attractive to wastewater operators is its ability to self-clean by using only the main pumps. Other types of wet wells must be cleaned manually or by vacuum truck. During the cleaning cycle in a trench-style wet well, all scum, sludge, grit, gravel, rags and other trash are swept into the last pump by water accelerated to a high velocity and creating a hydraulic jump as it flows down the curved ramp. Cleaning can be completed in a few (typically between one to four) minutes with no manual labor beyond the touch of a button. The process can be automated to occur at any desired time intervals, such as once every three days or once per week. Because the trench can easily be kept clean and odor-free, this type of wet well can be placed anywhere (in residential, commercial or business districts) with minimal adverse odor impact. This presentation will highlight some of the pros and cons of the self-cleaning trench-style wet well and a discussion of the different design components unique to the project. This presentation will also discuss how Autodesk Revit Modeling software was utilized to create, edit and review 3D models of the building and infrastructure to assists with the overall design of the pump station. The presentation will focus on the benefits of being able to visualize and communicate changes at early stages in the development of the project, to allow for a more seamless design towards the latter end of the project.