Project Status



Project Type:  Sand Dam

Regional Program: Southeastern Kenya WaSH Program

Impact: 300 Served

Project Phase:  In Service - Mar 2026

Functionality Status:  Functional

Project Features


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The community of Kasyalani has 1,500 residents who lack access to nearby, safe water sources. Community members can collect water from a scoop hole in a local dry river bed or a protected dug well attached to a sand dam in another community. Still, both sources are too far away for people to access sufficient water to meet their daily needs quickly.

"The area’s dryness and dusty nature make it difficult to navigate, especially during drought periods. Dust can cause irritation, and the barren land offers little vegetation or shade, making long journeys to fetch water exhausting and dangerous due to heat exposure. The area is also rocky; the path to the scoop hole or the sand dam is, therefore, treacherous. Walking over uneven ground or sharp rocks increases the risk of injuries such as cuts, sprains, or falls, especially when carrying heavy water containers," shared Field Officer Alex Koech.

A community member collects water from a scoop hole.

The protected well is people's best option as the water is safe to consume, but it is overcrowded and can not provide enough water to address the acute water crisis. As people wait their turn to collect water, they lose valuable time, so people often resort to scoop holes that are less crowded even though their water quality is questionable.

"Drinking from the scoop hole, which is exposed to contamination from animals and dirt, has increased the risk of diseases such as diarrhea, typhoid, and cholera. These illnesses are common because water is not properly treated or stored," Alex continued.

Community members wait to collect water.

36-year-old farmer Janet Mawia contends with the water crisis daily as she attempts to collect enough water for herself and her family.

Janet Muwia.

"Water is important to me because, without water, I cannot prepare food [for] my children. My goats and livestock also require water for drinking every day. Water is crucial for growing crops and improving hygiene in our community," said Ms. Mawia.

"We can only fetch water once [or] twice daily because the waterpoints are not close to my home. We experience long periods of drought throughout the year. When water becomes scarce in our area, multiple households depend on the same water source (mostly the sand dam), leading to overcrowding and potential conflicts. This creates a stressful and unsafe environment for the women and children in our area," Ms. Mawia continued.

Field Officer Alex described how the proposed sand dam would help Janet and her community.

"The proposed sand dam water project for the Kasyalani community will significantly address many of the challenges related to water scarcity and its broader impacts. A sand dam stores water beneath layers of sand, which prevents evaporation and allows for year-round access. This will provide the community with a more consistent and reliable water source, even during dry periods when the scoop hole typically dries up. With access to cleaner water, the incidence of waterborne diseases, such as diarrhea, cholera, and typhoid, will [be] reduced," Alex said.

Ms. Muwia carrying water.

"A sufficient and reliable water source will reduce competition and conflicts that arise when water is scarce. This will create a more peaceful and cooperative community environment, especially for my children and myself, because we are often responsible for fetching water," said Ms. Mawia with anticipation.

Solving the water crisis in this community will require a multifaceted system that will work together to create a sustainable water source that will serve this community for years to come.

Steps Toward a Solution

Our technical experts worked with the local community to identify the most effective solution to their water crisis. Together, they decided to construct a sand dam and dug well.

Sand Dam
Sand dams are sought-after, climate-smart, and lasting water solutions providing hope and resilience to communities in arid Southeastern Kenya. Think of them like giant sandboxes constructed in seasonal rivers that would typically quickly dry up after the rainy season. Instead of holding water like traditional dams, they collect sand and silt.

When infrequent rains do come, these dams catch a percentage of the river's flow, letting most of the water continue downstream to other communities. But here's the magic: the sand they collect acts like a natural filter, holding onto water long after the river's gone dry. Then, wells are constructed nearby, creating a reliable water source even during the driest times.

And the benefits don't stop there! In communities impacted by climate change, sand dams replenish groundwater and prevent soil erosion. Even during severe droughts, the consistent water supply from these sand dams allows farmers to thrive, giving way for enough food not only for their families but also to sell in local markets.

The most remarkable aspect of sand dams is how they involve the local community every step of the way, giving them a sense of ownership and pride in solving their own water shortage and managing their own water resources.

This sand dam will be connected to a dug well to make the water more accessible.

Community Education & Ownership
Hygiene and sanitation training are integral to our water projects. Training is tailored to each community's specific needs and includes key topics such as proper water handling, improved hygiene practices, disease transmission prevention, and care of the new water point. Safe water and improved hygiene habits foster a healthier future for everyone in the community. Encouraged and supported by the guidance of our team, a water user committee representative of the community's diverse members assumes responsibility for maintaining the water point, often gathering fees to ensure its upkeep.

Project Updates


March, 2026: Kasyalani Community Sand Dam Complete!

Kasyalani Community, Kenya now has access to a new water source thanks to your donation! We constructed a sand dam on the riverbed, which will raise the water table and allow the water to naturally filter over time. We also built a new protected dug well with a hand pump adjacent to the sand dam, providing the community with a safer method to draw the drinking water supplied by the dam.

Esther Mwandika, 54, has high hopes for her future!

Ms. Mwandika.

"Access to water will give my family peace of mind and more time for meaningful activities. My children and grandchildren will no longer spend many hours fetching water and can focus more on school, homework, and resting. Being healthier and less tired will help them perform better in school and work toward their future dreams. For me, having water close means I can plan my days better, take care of my home properly, and support my family without constant stress."

Sand Dam Construction

The members of the Kyeni Kya Kasyalani Women's Self-Help Group collected all the local materials, such as rocks and sand, required to complete the dam. The collection of raw materials takes longer than the actual construction, lasting up to four months for a large sand dam. The group also dedicated a tremendous amount of time to supporting our artisans through physical labor throughout the project.

First, our team developed the siting and technical designs, which were then presented to the Water Resources Management Authority. We then sent a survey to the National Environment Management Authority for approval before beginning construction.

Once the plans were approved, we established a firm base for the sand dam wall. Usually, this requires the community to dig all the way down to the bedrock beneath the river channel. In the absence of good bedrock, we excavate to a depth at which the ground is compact enough to stop seepage.

Next, we heaped mortar (a mixture of sand, cement, and water) into the foundation, followed by the addition of rocks. We then used barbed wire and rebar to reinforce the mixture.

Once the foundation was complete, we built a timber skeleton to hold the structure above ground level. We repeated the process until reaching a sufficient height, width, and length.

Finally, we dismantled the vertical timber beams and left the dam to cure. This dam measures 78 meters long and 3 meters high and took 1,495 bags of cement.

When the rains come, sand and silt will be carried down the dry riverbed and build up behind the dam wall. This reservoir of sand acts as a giant natural filter, allowing rainwater to seep into the ground and raise the water table. With this water, the surrounding landscape will become lush and fertile, and the well will provide the community with drinking water. It could take up to three years of rain for this sand dam to reach its maximum capacity, because in this region, it sometimes only rains once a year!

Community Education

Our trainer collaborated with the field staff and community members to identify areas where the community could improve.

As we’ve worked with this Self-Help Group in the past, we asked them about the subjects on which they needed refresher training.

Field officer Alex Koech feels hopeful for the Kasyalani Community. He shared, "The refresher PHAST training and practical sessions on soap and disinfectant making, action planning, and installation of hygiene facilities have strengthened their knowledge, revived good practices, and encouraged behavior change. With reliable water access, improved sanitation, and income-generating opportunities like soapmaking, the group is well-positioned to sustain these interventions, improve health, support livelihoods, and enhance education for children. These combined efforts reflect a strong foundation for continued development and positive transformation within the community."

We trained the group on various skills, including bookkeeping, financial management, project management, group dynamics, and governance. We conducted hygiene and sanitation training to teach skills such as soap and detergent making and to improve habits, including handwashing.

We covered health problems in the community, including good and bad hygiene habits, as well as the prevention of disease. Finally, we covered both natural resource management and the operation and maintenance of the sand dam.

James Kismayu, the chairperson of the self-help group, said:

"The training has reinforced the importance of consistent hygienic practices in preventing diseases. It reminded other members and me about the value of water treatment, proper sanitation, and the installation of sanitation infrastructure. I now see that maintaining hygiene is not optional—it is essential for healthy living and for protecting our families and community from waterborne diseases. It also showed that combining hygiene practices with income-generating activities, like soap making, strengthens both health and livelihoods."

James Kismayu.

Thank you for making all of this possible!


Update photo


January, 2026: Exciting Progress in Kasyalani Community!

We’re thrilled to share that, thanks to your generous support, significant change is coming for Janet and the entire Kasyalani Community. Construction has begun on the sand dam project, bringing them one step closer to having clean, reliable water.

But that's not all—during construction, we’re also providing vital health training. These sessions equip the community with essential hygiene practices, ensuring that the benefits of clean water extend to lasting health improvements.

We’re so grateful for your role in making this possible. Stay tuned for more updates—soon, we’ll be celebrating the arrival of safe water in the Kasyalani Community!




Project Photos


Project Type

Sand dams are huge, impressive structures built into the riverbeds of seasonal rivers (rivers that disappear every year during dry seasons). Instead of holding back a reservoir of water like a traditional dam would, sand dams accumulate a reservoir of silt and sand. Once the rain comes, the sand will capture 1-3% of the river’s flow, allowing most of the water to pass over. Then, we construct shallow wells on the riverbank to provide water even when the river has dried up, thanks to new groundwater reserves. Learn more here!


Contributors

First Congregational Church U.C.C.
104 individual donor(s)