Activities related to civil construction works and reforms generate several types of waste that need adequate treatment, minimizing the damage caused to nature and its resources. In public works, the need to control spending on the inadequate management of this waste is highlighted. It is of utmost importance the environmental adequacy of the waste management of these works, to minimize negative environmental impacts. This research aimed to analyze and propose cost reduction for the management of Civil Construction and Demolition Waste (RCCD) in public works in the State of Pernambuco, Brazil. Data were collected on 20 works, including 18 from the public administration, for construction / renovation. It was observed that in most of the public works visited, there is a disregard in relation to the correct destination. The simulation demonstrated that proper management is possible to reduce management costs by up to 68.18%.