Mining industry is one of the major factors in Indonesia’s economic highlights. The industry requires a strong support to withstand the increasing demand of the mine. One of the important infrastructures of a coal mining is the hauling road. Since 2004, WASCO had started to construct an approx of 70 km hauling road of a public listed coal mining company at Kalimantan, i.e. PT Adaro Indonesia. Until to date, the company had entrusted WASCO to maintained and conduct expansion of the hauling road.