Location

Nyagatare, Rwanda

Client

Ministère de l’Agriculture et des Ressources Animales (MINAGRI)

Business sectors

  • Rural Development
  • Irrigation
  • Hydro-Agricultural Development

Involved partners

LOCAL SUBCONTRACTORS (IN TOPOGRAPHY AND GEOTECHNICS)

The project details

Contract value:

The cost of the project is around 3.5 billion Frw.
Cost of services provided by CIMA International: US$900,000

Proposed Solutions

CIMA International’s services started with comprehensive technical studies and CAD production for the development, which assisted in selecting the contractor. Subsequently, CIMA International managed the construction phase for the project owner (MINAGRI), offering:

  • Technical supervision
  • Administrative and financial oversight
  • Preparation for provisional acceptance of completed work
  • Regular progress updates to both the prime contractor and the contracting authority
  • Efforts to increase beneficiary awareness about maintenance needs
  • Monthly progress and detailed reports Additionally

CIMA International made several improvements to the project in order to maximize performance through improved water resource management and efficiency.

CIMA International’s Added Value in the Project

The key value of CIMA International’s service comes from facilitating knowledge transfer between the Canadian and local project teams, including the customer’s experts assigned to the project.

Main Obstacles met and Implemented Solutions

The main obstacles encountered during the implementation phase of the project were the following:

  • During the design phase, effective management of subcontractors is crucial to ensure timely delivery of all deliverables.
  • In the construction phase, key challenges involve monitoring the contractor’s material choices, confirming accurate dosages, and ensuring that under-equipped contractors follow construction standards.

Details of the project activities and work carried out are as follows:

  • Construction of a large primary irrigation canal, 26 km in length;
  • Establishment of flood control drains;
  • Building an irrigation water intake structure in the Muvumba, including a grit chamber for Perimeter 8
  • Erection of three valley dams (compensation reservoirs);
  • Installation of lateral weirs, water intakes, and culverts;
  • Construction of 4 guardhouses/maintenance quarters.

The planned works are characterized by:

  • Diversion Dam: (4.74 m high), with two dikes, an intake structure, sediment flushing system, weir, dissipation basin, side walls, and a footbridge;
  • Main Canal: (26,313 km in length), including a grit chamber, cofferdams, drop structures, culverts, and safety and discharge structures;
  • Reservoir No. 1: (5.9 m high), with a main dike, spillway, and main canal inlet;
  • Reservoir No. 2: (7.1 m high), including a main dike, spillway, and main canal inlet;
  • Reservoir No. 3: (5.8 m high), featuring a main dike, spillway, and main canal inlet;
  • Internal Layout of the Perimeter: Comprising an irrigation network with distribution, secondary, and tertiary canals, protective structures (drain network), and access tracks.

Details of work by city

Nyagatare

The work mainly includes:

  • The development of a large primary irrigation canal totaling 26 km long;
  • The installation of anti-flood drains;
  • The construction of an irrigation water intake structure in Muvumba with its sand trap for the irrigation of perimeter 8;
  • The construction of three (03) valley dams (or compensation reservoirs);
  • The construction of side spillways of falls, water intakes, culverts;