Georgia seeks survey work in waterways of 245-MW Vardnili cascade

TBILISI, Georgia 3/26/12 (PennWell) — Georgia project operator Engurhesi Ltd. seeks bids for topographic and bathymetric surveys of waterways of the 245-MW Vardnili hydropower cascade on Georgia’s Enguri River. Bids are due April 7.

Engurhesi invited pre-qualification in February to provide civil works, electrical equipment, monitoring, and hydro-mechanical works for two projects in the Vardnili cascade, which includes 125-MW Vardnili 1 and Vardnili 2, 3, and 4 of 40 MW each.  Three of the Vardnili plants were destroyed during civil war leaving the water channel without maintenance for 15 years.

The utility seeks bids for topographic and bathymetric surveys of:
o Gali Reservoir and definition of the reservoir volume-depth relationship;
o Cross-sections along the 23-kilometer channel from Vardnili 1 to the outfall at the Black Sea coast, requiring about 64 cross-sections in a channel typically 60 meters wide;
o The vicinity of the Vardnili cascade discharge channel at the Black Sea coast, including survey of the Black Sea bed up to 15 meters in depth, with some locations up to 80 meters in depth.

The work, including digital terrain models, is to be completed within four months.

Tender documents may be obtained from the address below in electronic format, free of charge.

Bids are due by 2 p.m. April 7. For information, contact Project Manager Malkhaz Tskvitishvili, Engurhesi Ltd., Project Implementation Unit, 8 Politkovskaia St., 3rd Floor, Tbilisi 0186 Georgia; (995) 32-2188011; Fax: (995) 32-2188022; E-mail: malkhaz@caucasus.net.

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