National Water Harvesting and Storage Authority

Hifadhi Maji, Boresha Maisha

Siyoi Dam
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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.

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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.

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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.

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Bosto Dam

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Government of Kenya through NWCPC has prioritized development of the Bosto Dam Water Supply Project in Bomet County. This is one of the main Vision 2013 flagship projects that aim to provide potable water to all in line with constitutional provisions and the right to water and Sustainable Development Goals (SDG).

The proposed dam will be 45m high zoned rockfill dam with an impermeable clay core. The capacity of the reservoir will be 29.5Million cubic meters. Treatment works will have capacity of 80,000m3/day with appropriate water system network and storage facilities to serve an initial population of 550,000 with a coverage area of 1050KM 2.

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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.

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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. 

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News

Locate Our Dams

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.

Flooding during wet seasons and prolonged dry spells during dry seasons is a phenomenon that characterizes the lower reaches of the Nyando River Basin. The situation has led to scarcity of food and water resulting to high poverty levels. Ahero, and West Kano irrigation schemes are also situated in the region and during dry spell cannot operate at full capacity due to low flows in the River Nyando. In addition, the existing water supplies do not meet the water demand in the targeted districts on the downstream.

The construction of Soin-Koru Dam upstream will mitigate against floods and also ensure regulation of the river flows throughout the year thus enabling irrigation all the year round by gravity. The reservoir will also supply water for domestic and industrial uses, generate hydro-electric power and also offer opportunities for fishing and water-based creation. By also acting as a sediment trap, the dam will reduce the sediment loading and their subsequent deposition within downstream reaches which is the main cause of flooding.

 

The project is intended at the ultimate year 2035 to provide water to a population of 1.71 million at 102,000m3/day.

 

The proposed multi-purpose dam shall be used for flood control in the lower reaches of Nyando River basin, supply of domestic water to the city of Kisumu and the satellite towns of Ahero, Awasi, Muhoroni, Koitaburot location in Kericho county; and irrigation of the existing irrigation schemes of Ahero and West Kano throughout the year.

 

It is also anticipated to generate 2MW hydro-power that shall be used in the plant and for other purposes and this water will be released to the river course and re-used for irrigation as mentioned above.

Welcome to NWHSA

Service Charter

Service Charter

This Service Charter sets out our commitments to our clients and stakeholders with regard to the quality of services that they expect from us. The Charter will...

Launch of National Dam Taskforce Report

Launch of National Dam Taskforce Report

LAUNCH OF NATIONAL DAM TASK-FORCE REPORT On the 15th of August 2019, at the National Water Harvesting and Storage Authority Auditorium, the National Taskforce h...

Who we are

Who we are

National Water Harvesting and Storage Authority (NWHSA) was established under the Water Act 2016, as an autonomous agency reporting to the Ministry of Water an...

Moses Gitonga Ntiritu Works