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COBA Portugal is currently carrying out the Detailed Design and Environmental Impact Study of the Viana do Alentejo Hydraulic Circuit and Respective Irrigation Block for EDIA – Empresa de Desenvolvimento e Infra-Estruturas do Alqueva, S.A.. This irrigation block, located in the Beja (Municipality of Alvito) and Évora Districts (Municipalities of Évora and Viana do Castelo), is incorporated in the Alqueva Multipurpose Development.

This Hydraulic Circuit will serve an area of approximately 4486 ha, and the irrigation block will contemplates the following infrastructures:

Connection to the existing Pumping Station of Baronia, taking advantage of two pumping units, with a flow rate of 0,250 m3/s each;

Pumping Station to be built downstream of the water intake of the Baronia Reservoir, dimensioned for a pumping head of 52 m and a flow rate of 1.7 m3/s;

Pumping Main with a total length of 1.2 km, which comprehends steel core prestressed concrete piping with ND1400 mm;

Reservoir with net storage capacity of 40000 m3, built by land modelling;

Filtration Plant with a flow rate of 2.7 m3/s;

Secondary irrigation network which encompasses 34 km of buried concrete, DCI and HDPE pipelines, with diameters ranging from 200 to 1500 mm, and 56 hydrants;

Road Network, which includes the upgrading/construction of rural roads with total extension of 3 km;

Drainage Network which includes reshaping and cleaning of water courses.

The following designs and projects will also be undertaken:

Monitoring, Automation and Remote Control Systems;

Geographic Information System;

Environmental Impact Study.


Lx, 29 Feb 2016