Water Engineering

OAR designs and delivers reliable water supply systems that meet the needs of fast-growing populations across Africa. Our services cover bulk water schemes, distribution networks, pumping stations, and reservoirs. We combine advanced engineering with practical, cost-effective solutions suited to local contexts.

By integrating smart technologies and efficient design, we ensure consistent, safe, and affordable water delivery. A reliable supply is the foundation of public health, industry, and sustainable urban development.

We also provide strategic planning for long-term water demand management. Our feasibility studies and modelling help municipalities and utilities plan for future population growth and climate variability. We align water supply projects with Sustainable Development Goal 6: Clean Water and Sanitation.

Effective wastewater management is essential for safeguarding health and protecting the environment. OAR provides end-to-end sanitation solutions, from sewer networks and pumping stations to treatment facilities. We specialise in decentralised wastewater treatment systems (DEWATS) that are affordable and scalable.

Our designs balance engineering efficiency with environmental sustainability. By reducing pollution and improving sanitation, we help cities and towns build cleaner, healthier futures.

Our approach focuses on context-sensitive solutions that work in both urban and rural areas. We design systems that minimise energy use, recycle water where possible, and reduce environmental impact. OAR supports governments in achieving compliance with local regulations and global standards.

Stormwater and flood risks are growing challenges in African cities due to climate change and rapid urbanisation. OAR develops stormwater management strategies that reduce flooding, protect infrastructure, and improve resilience. Our services include sustainable urban drainage systems (SuDS), detention ponds, and floodplain management.

We design solutions that combine engineering with natural processes to manage water sustainably. By planning ahead, we reduce the economic and social costs of flooding.

We also integrate stormwater strategies into wider urban and spatial planning. This ensures drainage systems are not an afterthought but part of city resilience planning. OAR conducts hydrological modelling to anticipate risks and design cost-effective mitigation measures.

Millions of people in rural Africa still lack access to clean, safe water. OAR designs rural water supply schemes that are affordable, practical, and resilient. Our solutions include boreholes, hand pumps, solar-powered systems, and small-scale treatment units.

We use labour-based construction methods where possible, creating jobs while building vital infrastructure. Access to clean water transforms communities by improving health, education, and livelihoods.

We place community engagement at the centre of our rural water projects. By involving local users in design and maintenance, we build ownership and ensure long-term sustainability. OAR emphasises simplicity and affordability, ensuring systems can be maintained with local skills and resources.

Climate change is reshaping water availability, making resilience more important than ever. OAR integrates climate adaptation into all water engineering projects. We design infrastructure that withstands droughts, floods, and shifting rainfall patterns.

Our solutions promote water efficiency, reuse, and conservation to protect resources for future generations. Sustainability is embedded in our engineering, ensuring infrastructure delivers benefits over decades.

We also advise governments and investors on green financing for water projects. By aligning with international climate and sustainability standards, OAR helps unlock funding for resilient infrastructure. Our expertise bridges engineering with policy, creating water systems that are both technically sound and environmentally responsible.