20431/1 - 1

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Project 20.431/1 - Wellen, Collector Wellen. • Breaking up existing pavements; • Breaking up linear and local elements; • Carrying out general dry earthworks; • Breaking up existing sewer pipes and inspection pits; • Filling in existing sewer pipes and pits • Dismantling and reassembling rock, masonry and concrete rubble; • Carrying out ground improvement works; • Installing geotextile; • Laying sewers in concrete pipes and grès pipes of various diameters; • Making inspection pits with pit rims and pit rim covers; • Making pumping pits in in-situ cast concrete; • Digging, re-profiling and clearing ditches; • Digging and profiling a basin • Making various pumping stations • Installing headwalls; • Making connections from street gullies and downspouts to the sewer; • Making sub-bases and crushed stone sub-base foundations; • Making foundations on wooden piles • Installing linear and local elements; • Constructing new road pavements, cycle paths in, among others, asphalt, concrete and concrete paving blocks. • Installing a ground- and water-retaining screen Project 20.431/1 - Wellen, Collector Wellen. • Breaking up existing pavements; • Breaking up linear and local elements; •…

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