Due to the West End’s topography the property was experiencing significant impacts from uncontrolled storm flows entering it. An extensive analysis of the entire West End basin using GIS data and the City of Aspen’s Drainage Master Plan was documented in a drainage report. The solution required a 24-inch reinforced concrete pipe and outfall structure to dissipate energy and mitigate erosion. The system collects runoff from the entire basin and conveys into Hallam Lake through an environmentally sensitive area. RFE and the project team collaborated with the Aspen Center for Environmental Studies, City of Aspen Engineering Department, the City of Aspen Parks Department, the Hendrikus Group and Ownership to create an outstanding solution which worked for all stakeholders.