The scope of work covers: survey, project design, engineering and preliminary project drafting works for 271,9 km long 2x3 lane highway; 50,6 km long 2x2 lane highway linking road; total of 11 duel-tube bored tunnel structure with total length of 27,4 km (1 highway tunnel with 1x3 lanes at length of 2.32 km, 1 highway tunnel with 1x3 lanes at length of 1.96 km, 1 highway tunnel with 1x3 lanes at length of 1.93 km, 1 highway tunnel with 1x3 lanes at length of 1.89 km, etc.); 15 viaducts; 13 overcrossing designs and 27 bridges; 38 overpass bridges; 308 culverts and 181 underpasses (including 1/25000 scaled route alternates survey, 1/5000 scaled preliminary project plans and profiles, servicing facilities, maintenance and operation facilities, toll booth areas, hydraulic-hydrologic surveys, cross-sections, Bruckner calculations, quantities and estimates thereof, landscaping project, traffic preliminary survey report, feasibility report, 1/5000 scaled map production, drilling and laboratory tests, geologic-geotechnical surveys and reports).