National Water Harvesting and Storage Authority

Hifadhi Maji, Boresha Maisha

Siyoi Dam
previous arrow
next arrow

Project Updates

Chemususu Dam

















The dam is located in Baringo County, Koibatek District and has a capacity of 15 million cubic meters or 15 billion litres. Chemususu Dam discharges 35,000 cubic metres or 35 million litres of water per day. It was designed to serve at least 50% of Baringo County population which includes towns and various institutions within the County.


Soin-Koru Dam


The Soin-Koru Dam Development project is proposed to be located on the Nyando River in the vicinity of Muhoroni in the Western part of Kenya. It shall be 60km from Kisumu City and 5km upstream of Muhoroni town. The Dam will be located in Kisumu and Kericho counties.


Siyoi - Muruny Dam

















The proposed Muruny Dam is located near Kapsait Primary School at Murkokoi Center which is approximately 43km from Kapenguria Town. The site location is covered on SK Map 75/4 Cherangany at GPS coordinates 36 N 0761064 and UTM 0129350, elevation 2690 masl at the riverbed. The project area lies within the Rift Valley Drainage Basin. River Muruny emanates from Cherangany Hills and flows in a North Eastern direction before finally draining into Lake Turkana.


Kiserian Dam









Kiserian dam is located along Kiserian River about 2kms from Kiserian Township and will supply water to Kiserian, Ongata Rongai and parts of Ngong’ townships. The present (2010) total population of the area is about 124,000 people with a water demand of 8,450m3   per day. The 18m high dam will store 1.22Mm3 of water and supply 15,700m3  per day of water to the townships which will meet the future (2020) water demand.


Maruba Dam

















In June 2010, NWCPC finalized rehabilitation of Maruba dam by raising the height of the embankment wall and spillway by 6 m. This increased the dam’s storage capacity from 0.60 Million m3 to 2.45 Million m3.  Increase in storage volume has ensured increase in water supply to Machakos Town and its environs from 2,050 m3/day to 8,700m3/day. 



Locate Our Dams

Strategic Plan 2019-2022

     NWHSA team led by Board Chairman, Directors, CEO, KSG consultant & senior management

National Water Harvesting and Storage Authority (NWHSA) is finalizing the development of its strategic plan 2019-2022. The plan has been submitted to the Board for their input after which there will be a validation of the same by various stakeholders. The four year plan gives direction of where the institution wants to be in the next four years and shape the organization’s strategic focus to fulfill the National Government’s obligation of development, maintenance and management of National public water works infrastructure, aimed at provision of accessible water and mitigation of loss of life and property from the effects of floods and drought. 


National Water Harvesting and Storage Authority (NWHSA) is established under Section 30 of the Water Act 2016. Section 149 of the Water Act 2016, transformed the Authority from National Water Conservation & Pipeline Corporation (NWCPC) which was established under the State Corporations’ Act Chapter 446 of the Laws of Kenya vide Legal Notice No. 270 of 24th June, 1988.

The Authority’s Mandate and functions as stipulated in Section 32 of the Water Act 2016 are as follows;

The functions and powers of the Water Storage Authority shall be to:

Undertake on behalf of the national government, the development of national public water works for water resources storage and flood control;

Maintain and manage national public water works infrastructure for water resources storage;

Collect and provide information for the formulation by the Cabinet Secretary of the national water resources storage and flood control strategies

Develop a water harvesting policy and enforce water harvesting strategies;

Undertake on behalf of the national government strategic water emergency interventions during drought; and

Advise the Cabinet Secretary on any matter concerning national public water works for water storage and flood control.

The Water Storage Authority may appoint agents for the operation, management, maintenance and safety of any storage infrastructure that it has developed.

The Water Storage Authority shall have such other powers and functions as may be conferred or imposed on it by this or any other Act.

This Plan took into consideration the following; The Constitution of Kenya 2010, the Water Act 2016, Vision 2030, the Jubilee Manifesto, The National Water Master Plan, Sustainable Development Goals and agenda 2063.

Strategic Objectives:

To increase water storage in the country by  32.87 Million Cubic Meters by the year 2022

To enhance sustainability of constructed water structures through operations and maintenance

To Protect/save lives and property from the effects of floods and drought by construction and maintenance of 70 kms of dykes and 45 kms of river training structures

To mainstream cross-cutting and policy issues and align them to the legal and regulatory guidelines

To enhance financial sustainability of the authority

To improve our corporate image and enhance customer service.

During a workshop held in Machakos early this month, Ag. Chief Executive Officer Eng. Sammy Mburu said the Strategic Plan is the blueprint and road map of the Authority activities which are all geared towards fulfillment of the Authorities core mandate.  

Board Chairman Dr. David Nkedianye on his part said the plan is timely as it will be implemented at the same time the Water Sector Reforms are being implemented. He added that the plan positions the Authority as the main institution in charge of water harvesting and storage.

Speaking during the workshop, Water Secretary Eng. S.A.O Alima who is also Director representing the PS, Ministry of Water & Sanitation and Irrigation at NWHSA, affirmed the commitment of the Ministry to fast track water sector reforms and gazettment of various regulations that are key in the implementation of the Water Act, 2016.

Eng. Alima congratulated the Authority for developing the strategic plan and other key instruments such as the Human Resource policies as crucial steps towards implementing the mandate. He said institutions in the sector who have not done so should follow suit.

Chairperson of the Strategic Plan Committee CPA Margaret Kithunzi appreciated the committee for the good work, input and dedication while developing the plan. She appreciated the Chief Executive Officer who is the team leader. The committee reviewed the plan under the guidance of Mr. Kagenyi; a consultant from the Kenya School of Government.

Members of the Strategic plan Committee:

CPA Margaret Kithunzi -       Chairperson

Robert Nthenge -                   Vice Chair

Joseph Ojiambo -                  Member

Nancy Rotich -                      Member

Joyce Jepkemboi -                Member

Apphia Kaluku -                    Member

Joe Ondulo -                        Member

Sharon Obonyo -                  Member

Alex Simba -                         Member

CPA Philip Nzengu -              Member

CPA Rebecca Anyota -         Member

John Musyoka -                    Member

Rose Mbuko -                     Secretariat

Annah Syengo -         -        Secretariat






Welcome to NWHSA

Stakeholder Engagement Forum Announcement

Stakeholder Engagement Conference The National Water Harvesting & Storage Authority (NWHSA) is seeking the views of stakeholders and interested parties for...

Strategic Plan 2019-2022

Strategic Plan 2019-2022

NWHSA team led by Board Chairman, Directors, CEO, KSG consultant & senior management National Water Harvesting and Storage Authority (NWHSA) is finalizing...

Ministerial Tree Planting Launch

Ministerial Tree Planting Launch

The constitution of Kenya requires citizens to work towards achieving and maintaining a forest cover of at least 10% of the land area. A Presidential Directive...

Moses Gitonga Ntiritu Works