Within the scope of the contract, there is the improvement of the D Ring road with a length of approximately 3.6 kilometers, where there are 3 existing junctions, including 780 meters of underpass, 12 thousand meters of piling works, 4.3 kilometers of trenchless underground pipe laying (micro-tunnel), 39.8 kilometers of storm water, treated wastewater and sewerage lines and 23.7 kilometers of power line works.
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