The Project is for the construction of waterborne wastewater disposal system for Mandera Town.  The project is being implemented for 20-year design period, with the ultimate design year being 2040 and ultimate design population of 432,938 persons.

The scope of Works for the project: -

  • Construction of new wastewater stabilisation ponds treatment works with a design capacity of 6,000 m3/day.
  • Construction of a collector sewerage systems of 48.5km of sewers ranging in diameter from DN225 (secondary) to DN900 (Trunk) Precast Concrete Pipes (PCP).

Runji Consulting Group carried out design review for the project in 2017 and Sinohydro Corporation Ltd is the Contractor.

The Commencement Date for the project construction work was 01 November 2018 vide Contract No. TWSB/ADB/002/2017-2018 and has a revised completion date of 7th July, 2024.

Project Photos


Plant equipment conducting excavation works


Casting of manholes


Casting of concrete polls


Constructed sewer line


Placement of precasted manholes