Modernisation of Public Irrigation Schemes in the Lower Medjerda Valley: Engineering Component

Detailed description of project:

Within the framework of the Water Sector Investment Programme “PISEAU” (Programme d’investissement dans le secteur de l’eau), the Ministry of Agriculture – represented by the CRDA of Manouba - is rehabilitating and improving the existing irrigation schemes in the Lower Medjerda Valley. The irrigation schemes, which cover a total area of 4,320 ha, have been in operation for approximately 40 years.

The intention of the project is to use water resources more efficiently, intensify irrigated agriculture and transfer operation and maintenance to water user organisations (WUAs). Modernisation of the perimeters is done by switching from gravity irrigation by open canals to pressurised systems with mainly drip irrigation on the field level. Construction works include two pumping stations (Q = 3,060 l/s, H = 53 m, Q = 915 l/s, H = 34 m), a water treatment plant (3.06 m3/s), two reservoirs (22,000 and 14,000 m3), transport mains (29 km) and distribution network (135 km), drainage network and access roads.

The beneficiaries are involved in all stages of the project activities, i.e. the planning, design and construction. In order to ensure a smooth and sustainable implementation of the project, emphasis has not only been placed on engineering aspects, but also on so-called accompanying measures: water user organisations and competent agencies are supported and trained in such a way that they can assume responsibility for operation and maintenance of the modernised irrigation schemes.

Type of services provided:

Engineering Component:

  • Review of the feasibility study and financial and economic analysis;
  • Detailed and final design;
  • Tendering;
  • Assistance to CRDA in bid evaluation and contracting;
  • Supervision of construction works and supplies;
  • Detailed and final design, preparation of tender dossier and bid evaluation for the modernisation of additional 1,500 ha.
CRDA de Manouba
BMZ through KfW
02/2006 – 09/2014
Contract value: 2,220,720 €