estonia-tallinn: railway construction works./ rail baltica raplamaa main line railway infrastructure stage i construction works./ construction of an embankment on the main route section ds1 dps1 (including construction of longitudinal and transverse drainage, land improvement systems, culverts for animal passage and water drainage), construction of retaining walls, erection of fences and reconstruction of third-party utility network crossings, construction of cable ducts, construction of one green bridge and construction of one tunnel, kohila traffic junction construction works (including 5 road viaducts) in accordance with the conditions stipulated in the basic documents of public procurement.