The objective of this research is to develop an appraisal system for the assessment of green highway construction. A highway is chosen, among the various infrastructure types, for its broad coverage of areas and its large share of a nation’s infrastructure development. Literature reviews and the Max-Min Fuzzy Delphi method are first employed in this study to identify the major categories and their corresponding items for assessing the ”greenness” of a highway project. The five major categories identified are preservation of eco-systems, plantings to reduce CO2 emission, preservation of material resources, waste reduction, and water conservation. The AHP (Analytical Hierarchy Process) method is then employed to determine the weighting of major categories as well as the sub items in each category. As a result, this study proposes an appraisal rating system to assess the ”greenness” of a highway construction project.