YEHANS INTERNATIONAL · ACCRA, GHANA
Dam and water-management solutions for irrigation, water storage, water supply and flood-management projects. Yehans International approaches each development around its location, engineering requirements and intended use.
Yehans International provides dam construction and water-resource solutions in Ghana. The starting point is understanding the project’s purpose: storing water, supporting agriculture, managing flows or serving a wider infrastructure development.
A suitable proposal depends on more than the intended reservoir size. Terrain, foundation conditions, catchment behaviour, water demand and downstream conditions influence what can be developed at a particular location.
We approach enquiries by establishing the available studies, proposed scope and information still needed. Feasibility, specialist design and applicable approvals should inform construction planning rather than being treated as separate afterthoughts.
Water storage can support farming where rainfall and crop-water requirements do not align throughout the year. Irrigation dam projects should connect the proposed storage with the land to be served and the method of delivering water.
For agricultural developments in Ghana, planning needs to consider seasonal inflows, dry-season demand, evaporation and the wider irrigation arrangement. Storage alone does not establish a dependable year-round supply; the available water and operating requirements must be assessed.
Yehans International welcomes enquiries for irrigation and agricultural water infrastructure. Tell us the site location, proposed farming use, approximate area and any existing surveys or water studies so the next planning steps can be identified.
Water-supply dams form part of a wider system that can include abstraction, treatment, pumping and distribution. The reservoir and associated works should be planned around the intended users and required water quality.
Multipurpose projects may combine irrigation, water supply and flow management. These objectives need coordination because storing water for one use can affect the capacity available for another.
Hydropower may also be considered where water availability, usable head and project feasibility support it. It requires specialist assessment and generation infrastructure; it is not an automatic feature of every dam development.
Flood-management infrastructure should be considered within the wider catchment and drainage system. A dam may help manage flows where appropriately designed and operated, but it cannot be presented as a guarantee against flooding.
Spillways, outlets and downstream conditions are important parts of the project. Rainfall patterns, flood estimates and the consequences of water releases need assessment alongside the storage structure.
Construction planning must also consider earthworks, foundations, drainage, erosion protection and quality control. Once completed, the infrastructure needs an operating and inspection plan suited to its design and responsibilities.
Cost depends on the dam type, dimensions, foundation conditions, earthworks, access, materials and associated infrastructure. Surveys, studies and the proposed design are needed to develop a meaningful estimate and define what the quotation includes.
This depends on inflows, usable storage, evaporation, losses and irrigation demand. A water-balance assessment is needed before making commitments about supply duration or the area that can be irrigated.
The choice depends on terrain, ground conditions, available materials, water conditions and project objectives. The appropriate structure should follow site investigation and engineering assessment rather than being selected from a photograph or standard template.
A multipurpose dam may serve irrigation, water supply and flow-management objectives where feasible. These uses need coordinated storage allocation and operating rules so their requirements can be assessed together.
Provide the site location, intended use, approximate water demand and project stage. Include any surveys, hydrological information, ground investigations, concept drawings or approval documents already available.
Yehans International is based at 75 Boundary Road, American House, East Legon, Accra. We welcome dam and water-infrastructure enquiries from developers, agricultural businesses, organisations and project teams across Ghana.
Share the available project information so we can discuss the intended construction scope and the coordination required with your engineering and environmental teams.
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HAVE A WATER INFRASTRUCTURE PROJECT?
Tell us where the project is located, what it needs to achieve and which studies or drawings are available. Our team can discuss your requirements and the next steps for defining the scope.
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