Water Resources Engineering Consultants in Nigeria

PSE Consultants Limited is Nigeria's most experienced water resources engineering consultancy, with a proud legacy spanning over 580 water schemes across every region of Nigeria. As water supply consultants to federal and state governments, multilateral donors and private clients, we remain dedicated to ensuring access to clean, safe water while prioritizing responsible and environmentally conscious practices.

Sustainable Water Supply and Distribution

Design and supervision of domestic and industrial water supply systems utilizing renewable resources like rainwater harvesting and groundwater recharge. Optimization of existing infrastructure for improved water efficiency and reduced waste. Implementation of nature-based solutions like constructed wetlands and green infrastructure for integrated water management.

Dam Engineering and Resilient Infrastructure Design

Dam and ancillary works designed with climate change adaptation in mind, incorporating flood risk mitigation and drought resiliency measures. Design and implementation of stormwater control systems that enhance rainwater capture and reduce urban flooding. Sewerage and drainage systems that minimize environmental impact and promote wastewater reuse.

Irrigation and Drainage Design

Irrigation and drainage design for large-scale agricultural schemes, informed by our decades of dam and water supply work. See our agricultural consultancy.

Data-Driven Water Resource Management

Drainage basin hydrological analysis and modeling to ensure sustainable water resource management. Inland and coastal degradation studies. Advanced tools including GIS and remote sensing for informed decision-making.

Feasibility Studies and Geotechnical Surveys

Pre-feasibility and feasibility studies covering technical, economic, environmental and social aspects; meticulous soil analysis for safe and sustainable foundation construction for water infrastructure.

Why PSE Leads Water Resources Engineering in Nigeria

Over 580 schemes delivered over 40 years, including the landmark Suleja Dam and Water Supply Project.

Featured Water Infrastructure Projects

Our portfolio as water resources engineering consultants in Nigeria spans earth dams, multipurpose reservoirs, water treatment and distribution, and rural water supply schemes delivered for federal and state clients.

Inyishi Dam and Water Supply Project — construction supervision and project management under the FIDIC Red Book for the Anambra-Imo River Basin Development Authority; modified homogeneous earth dam with concrete spillway, water treatment plant, service reservoirs, river control, erosion and flood control
Owena Multipurpose Dam Project — design review, redesign and construction supervision for the Benin-Owena River Basin Development Authority
Adada Earth Dam and Water Supply Project, Aku, Enugu State — feasibility studies, surveys, design, geophysical investigations and environmental and social impact assessment for the Federal Ministry of Agriculture and Water Resources; 348 m long, 18 m high modified homogeneous earth dam with associated irrigation scheme design
Suleja Dam — design and construction supervision for the Niger State Government
580+ rural water supply and sanitation schemes — borehole siting, reticulation design, storage tanks and sanitation infrastructure delivered across Nigerian states, financed through the World Bank, Millennium Development Goals (MDG) programme, Petroleum (Special) Trust Fund and African Development Bank programmes
Agaie-Lapai Dam and Water Supply Project — design for the Upper Niger River Basin Development Authority, Lapai, Niger State
Agbashi Earth Dam Project — design for the Lower Benue River Basin Development Authority, Nasarawa State
Okrika Regional Water Supply Project — design and construction supervision for the Federal Ministry of Water Resources, Rivers State
Ekeremor Regional Water Supply Project — design for the Federal Ministry of Water Resources, Bayelsa State
Ivo River Dam and Water Supply Project — design and construction supervision for the Federal Ministry of Water Resources, Mpu, Enugu State
Tin Can Island Port Water Supply Project — design and construction supervision for the Nigerian Ports Authority, Lagos
Ihiala Water Supply Project — design for the Anambra-Imo River Basin Development Authority, Anambra State
Etomi Water Project — study and design for the Cross River Basin Development Authority, Cross River State
Minna/Bida Water Supply Project — design for the Niger State Water and Sanitation Board
Abia State Water Rehabilitation Project — design under the World Bank-financed National Water Rehabilitation Project
Jalingo, Zing, Wukari and Takum Water Supply Schemes — design for the Taraba State Water Corporation
Anambra State Water System Evaluation Project — Anambra State Government
National Rural Water Supply Programme (Enugu State) — Petroleum (Special) Trust Fund
IWRM Strategies and Water Efficiency Plan for the Niger South Catchment (Hydrological Area 5) — Nigerian Integrated Water Resources Management Commission
IWRM Strategies for Combating Climate Change, Drought and Watershed Management in the Niger Central Catchment (Hydrological Area 2) — Nigerian Integrated Water Resources Management Commission
Baseline Study of Water Resources Infrastructure in the Niger South Catchment — Nigerian Integrated Water Resources Management Commission
GIS-based Mapping of Erosion Sites and Flood Zones — World Bank-financed, Anambra State Erosion and Watershed Management Project (NEWMAP)
Oguta Lake Management Plan — National Fadama Coordination Office, Imo State
Obosi Erosion Control Project (Phases I and II) — Ecological Fund Office of the Presidency and the Anambra-Imo River Basin Development Authority, Anambra State
Abia State Erosion Sites Engineering Design at Mbom Amuzukwu and Ugwu Ukwu Ibere Ndioru Itunta — Abia State Ministry of Environment
Ekulu River and River Lane Erosion Control Works, Enugu — private clients, Enugu State
Obizi-Uga and Otuocha Water Supply Schemes — detailed engineering design and supervision, including rehabilitation and expansion of the Obizi scheme, for the Anambra State Government
Pro-Poor Water Supply Service Delivery at Community Level — design and construction supervision of 15 solar-powered borehole schemes, World Bank-financed programme with the Federal Ministry of Water Resources

Standards and Governance

PSE operates within a disciplined framework of international and national standards. Construction contracts are administered under the FIDIC suite appropriate to each procurement route — the Red Book for traditionally procured civil works, where we act as the Engineer on dam and water supply assignments, and the Yellow Book for plant and design-build arrangements in which we serve as the Employer's Representative. Our engineers hold COREN registration, and the practice has commenced implementing ISO 9001 quality management across documentation, review and site supervision processes.

Where assignments are financed by the World Bank, our environmental and social due diligence follows the World Bank Environmental and Social Framework, covering screening, mitigation planning and safeguards supervision. Structural, hydraulic and geotechnical design references relevant British Standards and Eurocodes, applied to Nigerian site conditions and hydrology. Design review and verification are internal gateways: no dam, drainage or water supply drawing leaves the office without independent checking by a senior engineer. This governance structure is one reason clients — from river basin authorities to water supply consultants — return to PSE for supervision of works where failure is not an option: embankment stability, spillway capacity, drainage and borehole yield must be right first time.

Who We Serve

PSE's standing among water resources engineering consultants Nigeria has produced rests on a client base built over 40+ years of practice. At federal level, we have worked for the Federal Ministry of Water Resources and its predecessor ministry responsible for agriculture and water resources, delivering dam engineering, irrigation design and water supply assignments. The River Basin Development Authorities are core clients: PSE has completed projects for the Anambra-Imo River Basin Development Authority, the Benin-Owena River Basin Development Authority and the Lower Benue River Basin Development Authority, spanning feasibility, design, drainage works and construction supervision.

State governments engage PSE for urban and rural water supply, borehole programmes, irrigation design and erosion control, with schemes delivered across multiple Nigerian states. Development funders form a further pillar: our rural water supply and sanitation portfolio of 580 water schemes has been financed through the World Bank, the Millennium Development Goals (MDG) programme, the Petroleum (Special) Trust Fund and the African Development Bank, and World Bank-funded agro-climatic resilience programmes in Kebbi State continue under our supervision. Private clients — industrial water users, estate developers and agribusinesses — engage PSE for water supply consultancy advice on storage, reticulation and drainage design. Each client receives the same senior-led team, from the first survey to the final takeover of works.

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Contact us today for a consultation and explore how PSE's engineering expertise can support your infrastructure, water resources, oil and gas, environmental or development project.