Preliminary Design

Technical Consultant for submitting proposal in EPPERAA for the treatment and disposal of sewage sludge

Consultant for assisting DEYAK in the preparation of the application file and the submition of the relevant application for funding of the Treatment and Disposal of Sewage Sludge works of the Wastewater Treatment Plant (WWTP) of the Municipality of Karditsa. General plans and basic design plans of proposed works. Assistance in Project Data documentation (scope determination, losses estimation report etc).
The Technical Consultant assisted in:

Design study of Lassithi plateau diversion tunnel to Aposelemis Dam, in Northern Crete Island

- Plateau’s water diversion works (sinkholes, ditches, water intake works).
- A 3,5km long diversion tunnel with an inclination ~ 15%.
- Diversion tunnel water outlet (penstock length 3.5 km), electromechanical installations for lighting, gates etc
- Energy dissipation outlet works

Feasibility study for the use of recycled water in Larnaka

- ~ 55 m high earthfill dam
 - Foundation and abutment grouting is essential in order to minimise water losses

Highway design for the update of the New National Road into a Highway (ΠΑΘΕ), section: Stylida - Raches (Chainage 12+000 - 32+000)

The stormwater and drainage works design of the 180km2 basin refer to :
- The main higway, 19.235 km long
- Three (3) tunnels,
- Four (4) valley bridges,
- One (1) bridge (Vellias stream)
- Three (3) overpasses
- Eleven (11) underpasses.
- Three (3) interchanges : (α) Ag. Marinas - Stylidas(β) Stylidas - Karavomilou (γ) Karavomilou - Ahinou.
- Sideways and other local roads
- Temporary works during construction period.

Hydraulic design and hydrology reports of Patra-Pyrgos-Tsakona (PAPYTSA) Olympia Odos Highway

The new Patra - Pyrgos - Tsakona (PAPYTSA) Motorway follows, in general terms, the same route as the existing road. It travels south from Pyrgos to Kalo Nero and then turns east through the valley bounded by Mt. Tetrazio to the north and the Kyparissia mountains to the south, until it intersects the Tripolis – Kalamata Motorway at Tsakona, where the Olympian Highway ends. The main studies of this project were:
- Hydrology - Discharge determination of watersheds at several Geographical Units of Patra Pyrgos highway

Environmental flood protection works in urban areas - Adjustment of Xerias stream in Korinthos

Xerias river basin has an area of 174 km2 and extends from the town of Korinthos (North) to the Southern districts of the Korinthos Prefecture, at the frontier with Argolida. Xerias river flow is seasonal with intense fluctuations. The January 1997 storms caused serious disasters.
The works included:
- Open and closed parts combination with composite concrete/steel sections, 1330m long.

Preliminary study and tender documents for the water treatment plant of Rhodes

The Gadouras Dam Reservoir supplies the water treatment works. The treatment works are part of the overall water supply scheme of Rhodes from Gadouras.
The works included:
- The plant consists of inlet works, polyelectrolyte and alum dosing and storage facilities, sludge blanket clarifiers, rapid gravity filters, disinfection units and potable water storage tanks.
- The maximum design flow is 60.000 m3/day for the first phase and 120.000 m3/day for the final phase.

Design of an RCC dam and related structures for the Porto Carras resort in Halkidiki

The project includes the dam, spillway and energy dissipation, water intakes and road access.
The dam and reservoir lies within the private Porto-Carras areas. The main structures are:
- a lean RCC dam with a height of 32m and volume ~40.000 m3
- a spillway with capacity 330m3/s
- a 4 level water intake structure
The reservoir has total capacity ~1.000.000m3

Design of the water supply extension of the Gadouras dam pipelines

The project involves the extension of the existing pipeline to a wider area, covering potable water needs around the island, substituting weak underground resources.
The pipeline design extends to a total of 130km and includes numerous related infrastructure such as control tanks and devices and pumping stations.


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