Abstract: “Construction of road and bridge infrastructure aimed to supporting the distribution of goods and human traffic and form a spatial structure. In construction, there are factors that affect the implementation time. Thus the purpose of this study was to identify risk factors that may affect the project implementation time, classified in categories, and how to influence and rank the likelihood of these factors. Research done by observation at the project site and interviews with interested parties. The data obtained were analyzed with a Likert Scale and Relative Importance Index (RII). While the interaction between risk factors with influence diagram. The study represent that there are 17 risk factors that always occur in the construction of roads and bridge in Papua, which affects the timing of implementation. These risk factors are classified into seven categories with the first dominant factor until the third in a sequence is RII= 3.00, R=1 is Availability of Material(Material Aspects),”

Keywords: risk factor, Roads project, time of the road construstion project