Shimanyiro Community Borehole

National Water Harvesting and Storage Authority

Hifadhi Maji, Boresha Maisha

Karima Kogi Water Pan Project, Murang'a County
Nyando Flood Control Works, Kisumu County
Koitoror Dam, Uasin Gishu County
Banita/Testai Pan Project, Nakuru County
Iria Dam work in progress, Kitui County
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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.


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

Shimanyiro Community Borehole


National Water Harvesting & Storage Authority Chairman Mr. Erick Okeyo MBS, MKIM; Directors Jane Mwikali and Elema Isack  accompanied by the Chief Executive Officer CS. Sharon Obonyo and Members of Staff recently visited Kakamega and engaged the leadership of the County in addition to commissioning the Shimanyiro Community Borehole.

The entourage first met the Deputy County Commissioner Mr. Dennis S. Ogola who represented the County Commissioner. Mr. Ogola appreciated the courtesy call by the Chairman noting that water was essential in these times of Covid-19 and any ventures by the Authority towards improving the supply were welcomed. He thanked NWHSA for the donation of 5No. washing tanks that would go a long way in the fight against the pandemic.

The team also met the Deputy Governor H.E. Prof. Philip M. Kutima for a briefing. During the brief, the Chairman outlined the key mandates of the Authority and challenged the County Government to engage our Business Development Unit (BDU) in undertaking their water projects at the government approved rates without procurement challenges.

Prof. Kutima noted that water was critical in the County and they were undertaking major water projects within the 12 sub-Counties. These were pegged in the 2 – 3 years Vision when it is expected that everyone should have access to water in line with the clarion call: “Matsi khu Mukuru” meaning water at the doorstep.

The County team appreciated what the Authority was doing and accepted the challenge from the Chairman on engagement with BDU. Prof. Kutima promised to initiate the signing of an MoU for engagement.

NWHSA also took the opportunity to donate 5No. washing tanks in line with the fight against Covid-19.

Mr. Okeyo also had an extensive tour of the only regional office for NWHSA. He inspected the yard where various plant & equipment were and directed the CEO to ensure funds are availed to repair those that had mechanical issues for use by BDU. He urged quick repair of RR7, RR12 and RR14 to aid in the many works arising from the MoUs we have been signing. He also promised to fast-track the development of the HR tools and organization structure so that staff may enjoy the resultant benefits.

The Chairman also commissioned and handed over the Shimanyiro Borehole located at St. Paul’s Catholic Church compound at Shimanyiro within Ikolomani sub-County of Kakamega County. The borehole was drilled for the community of Shimanyiro under Performance Contract (PC) during the transition period from National Water Conservation & Pipeline Corporation to National Water Harvesting & Storage Authority. It was therefore not officially commissioned/handed over to the beneficiary community or government agencies.

It has since operated without major hitches except for minor mechanical break-down with its prime mover, the Lister Petter generating set (TR2) which has now been repaired and is fully operational.

The entourage also visited the County Government offices and was well received. Despite a number of operational challenges, the goodwill and opportunities available within the County for NWHSA are many.


Welcome to NWHSA

CSR activities in Murang'a

CSR activities in Murang'a

The Chairman of the National Water Harvesting & Storage Authority Board on Friday last week accompanied the Principal Secretary, Ministry of Water, Sanitat...

Shimanyiro Community Borehole

Shimanyiro Community Borehole

National Water Harvesting & Storage Authority Chairman Mr. Erick Okeyo MBS, MKIM; Directors Jane Mwikali and Elema Isack accompanied by the Chief Executive...

Moses Gitonga Ntiritu Works