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І main sewer collector in Gorna Banya and parallel infrastructure, Sofia

The Employer is Sofia Municiaplity district “Ovcha Kupel” and Vodokanalstroy Ltd. performed construction works as a member of “Gasstroymontaj Vodokanalstroy Sofia” consortium.  The executed works include the construction of a sewer collector with DN500, DN600, DN700, DN900 and DN1100 GRP pipes with a total length of 843m, parallel water-supply mains DN110 HDPE with a length of 472m, horizontal drillings dia.1220 under the Sofia ring road and dia. 1020 under the railway with a total length of 65m.