Soil and water conservation is undoubtedly a key pillar in ensuring sustainable development, more particularly in the arid and semi-arid regions which are characterized by critical levels of land degradation, perennial droughts and crippling water scarcity.

Through out history, research has proved that all the social economic developments are deeply anchored on a sustainably preserved and balanced ecosystem without which any effort to increase land productivity, foster climate change resilience or improve livelihoods are unlikely to be realized.

What we are doing about it.

It is this challenge that Africa Sand Dam foundation is trying to address in a progressive and sustainable manner, by combining the traditional methods of soil and water harvesting with localized innovations like Sand dams which not only harvest water, but also preserve it insitu by utilizing the natural systems; leading to a recharged aquifer, restored ecosystem and a rejuvenated livelihood.

Water harvesting.

Sand Dams.

A sand dam is an innovative water harvesting structure used to trap and store run off water in the arid and semiarid regions, which often go for years without adequate rainfall.

Sand dams are put up by erecting a concrete wall across a seasonal river, thereby trapping tons of sand that naturally flows along with the rainwater. The layer of sand ADVENTLY acts as a sponge that holds gallons of clean and safe water in their millions, while at the same time cushioning it from both evaporation and contamination.

We use the Sand dam structures to not only harvest water and store it within the natural ecosystem, but to also directly and indirectly improve the environment through land rehabilitation which happens through the recharging of the natural water channels and conservation of the land around the sand dam.

Rock catchments.

Rock catchment dams are surface run-off harvesting structures developed from a rock outcrop in hilly regions. The system is used to catch and concentrate rainwater runoff into concrete tanks for future use and further redistribution to the community.

In arid and semi-arid lands with large rock outcrops, a lot of runoff is generated after rains. Through development of rock surface into a catchment, the runoff can be harvested and stored for domestic and livestock use to alleviate water shortages.

School water tanks.

Our water tanks projects are designed in a way to target the most deserving of primary and secondary schools within our area of intervention.

Our 10400 L capacity water tanks is innovatively designed to outlast the effects of the scotching heat and provide safe drinking water to school going children in the arid and semi-arid regions of Kenya.

With more than 10 years of experience in building 100% leak-proof concrete water tanks, ASDF has become a great resource in the rain water harvesting sub- industry.

Although the water harvested is primarily meant for the schools primary needs (to cook and drink), a few schools have been inspired to utilize available water harvesting option to spur up school gardening and tree planting activities.

soil conservation
  • Terracing

Terracing has been a leading method of land conservation which has proved to be highly effective over years.

Africa Sand Dam Foundation facilitates continous land terracing through T.O.T trainings which equi the local communities with the capacity to PLAN and carry out effective terracing.

  • Facilitating communities with terracing tools.

We further equip communities with the tools they need for terracing, which are shared among group members.

The numbers.

So far we have recorded more than 09-09-=-0=- M or terraced land, and endevour to continue promoting the activity until all our implementation areas are adequately protected from soil erosion.

  • Zai pit technology.

In an effort to leverage on indigenous knowledge on soil conservation, Africa sand dam foundation is championing the course of zai pit adoption as a means to improving productivity through efficient soil and water conservation.

Zai pits, also known as planting pits, are need-specific holes which are designed to hold manure and preserve moisture within the confines of the crop roots.

The size and shape of the zai pits may vary depending on use, but the principle remains relatively the same.

The pits have been used to foster minimum tillage, reclaim severely degraded land and counter erosion by harvesting surface runoff.

  • Reforestation.

In addition to advocating for natural resource conservation, Africa Sand Dam Foundation is also actively engaged in rehabilitating the ecosystem through a sustainable tree growing project that ensures communities adopt tree planting as a primary responsibility.

Tree planting activities are promoted at both the community and learning institutions.

The organization is particularly keen on advocating for high value, food and indigenous trees which not only help conserve the environment but are also a source of shade, food, ingredient for natural/herbal medication and/or other high value uses.

shallow wells

 Who we do it with

charitable exellent;


The numbers.


Current Status

2030 target

Sand Dams Constructed  476  952
Beneficiaries  71400 2000000
Cummulative  Capacity 50,000 M3 100,000 M3


Who we do it with.

charitable exellent;


The numbers.

ItemCurrent Status2030 target
Rock Catchments built  6  12
Cummulative Capacity  4560  9120
Beneficiaries  3,000  6,000



The numbers.

ItemCurrent Status2030 target
 Tanks Build 199  400
Cummulative Capacity  20696 M3  41392M
Beneficiaries 69650 139300



Who we do it with.

charitable exellent;


The numbers.

ItemCurrent Status 2030 target
Terraces  73134 M  146268 M
Zai pit  8,343  16,686
Community Tree Nurseries  86  172



Where To Find Us

We are located at Mtito Andei in Makueni County, Kenya.

P.O. BOX 125-90128,Mtito Andei,

Tel:+254798623130,+254723465902, +254722453416

© 2021 Africa Sand Dam Foundation