Olooloitikosh Dam, Kitengela and Kajiado Towns Water Supply and Sewerage Project
Scope: Feasibility Studies, Conceptual Designs, Preliminary Designs, Detailed Design, Tender Documentation, Geotechnical Investigations, ESIA & RAP Studies
Consultancy Fees: USD 1,094,000
Frame Consultants delivered comprehensive feasibility studies, detailed engineering designs, and environmental and social safeguards for the Oloolotikosh Dam and the associated Kitengela–Kajiado water supply and sewerage systems, a flagship regional infrastructure project designed to secure long-term water and sanitation services for rapidly growing urban and peri-urban populations.
- The project was planned to meet escalating water demands, increasing from 8.5 million m³/year at present conditions to an ultimate demand of approximately 36.9 million m³/year by 2042. At its core is the proposed Oloolotikosh Earthfill Dam, with a catchment area of 124 km², a reservoir surface area of 2.94 km², and a total storage capacity of 34 million m³. The dam incorporates an impervious core and grout curtain to ensure long-term structural integrity and water retention, with a dam height of 35.6 m along a 570 m crest length.
- Beyond bulk water supply, the assignment addressed integrated wastewater management for the Kitengela and Kajiado urban corridors. Wastewater generation was projected to grow significantly, reaching 36,423 m³/day in Kitengela and 14,742 m³/day in Kajiado by the ultimate design horizon, requiring robust sewerage and treatment infrastructure planning alongside water supply development.
- Frame Consultants prepared costed, implementation-ready designs covering dam construction, water treatment facilities, transmission & distribution networks and sewerage systems. The project provides a resilient, climate-responsive foundation for sustainable urban growth while aligning with national water security and Vision 2030 objectives.
