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Arzni-Shamiram main canal
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Yerevan Combined-Cycle Thermal Power Plant
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Fish-protecting structures of Sevan HPP
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Sevan-Dilijan road tunnel
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Dilijan Drainage Tunnel
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Flush Weir of the Intake Unit of Noyemberyan 1-st Stage Pumping Station
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Yeghegis Aqueduct
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Arpa-Sevan tunnel
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Kechut Reservoir
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Argel HPP. The chute of no-operation spillway.
August 25, 2015 Samvel Zaqaryan was awarded a Certificate of Appreciation.

Samvel Zaqaryan, the head of  Construction department of “Arpa-Sevan” OJSC was awarded a Certificate of Appreciation by the Ministry of Urban Development of Armenia.