Civil Engineering is the oldest branch of engineering. In ancient times, architects, engineers, and planners were one and the same. In landscape design, these three disciplines are still closely linked particularly in the design and construction of green infrastructure, low impact develop and stormwater infrastructure. In this course the design of stormwater management systems will be taught with a multi-disciplinary approach. Impacts to the flow regime, water balances, flow paths, water quality, and aquatic habitats will be discussed. The low impact development (LID) design approach will be examined as a tool for sustainable urban planning. Some topics covered in this course include: Conventional systems (stormwater management ponds); Vegetated stormwater systems (green roofs, bioretention); Infiltration systems (permeable pavements, exfiltration cells; Treatment systems (oil-grit separators, filter strips); Modelling approaches; Sediment and erosion control and operational considerations.