With the increase of infrastructure development in Taiwan, more and more constructions will encounter the gravel formations. For a better understanding of the material properties of the gravel formations and the construction techniques, relevant data and cases are collected and reviewed. General discussions are provided in this paper. All data obtained are from the western areas of Taiwan and they are categorized into six groups based on the geological districts namely Linkou, Miaoli, Taichung, Tatushan, Pakuashan and Chushan. The material and engineering properties of the gravel formations are discussed. As for construction in gravel formations including excavation, tunnelling and grouting are all reviewed.