Gadouras dam, water treatment and supply works in Rhodes island

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Project description
Scope: 

Consulting services to the client for the bidding and construction supervision.
Tender Documents review and update.
Validation of submitted bills of quantities and contractor payments.
Quality control.
EU funding assistance

Description: 

The project includes the Gadoura dam and appurtenant works construction, the water mains to the town of Rhodes (including a small tunnel), the water treatment plant construction.
The project will service the long-term region water supply needs.
The project is funded by National Sources and the E.U.
The dam height is 60m. The embankment dam is earthfill type with an impervious core and the reservoir capacity is ~65 hm3.
The water intake consists of a four level inclined tower at the right abutment which is connected to a D1300 pipe in the diversion-intake tunnel.
The spillway is situated in an adjacent saddle dam, 15 m high.
The water mains is 44 km long, with a maximum capacity of 1.55m3/sec.
The treatment plant has 60.000 m3/day capacity for phase A and 120.000 m3/day capacity for the final phase. It consists of energy dissipation headworks, coagulation unit, sludge blanket clarification unit, gravity filters, disinfection unit and storage tanks.

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