The original contract was terminated on 8 May 2026 after the works stalled. Rwanda's Auditor General found that only 6.4% of the Rwf 1.1 billion allocated to the project in the 2025/26 fiscal year had been spent by the time of inspection. A further Rwf 542.9 million has been set aside in the 2026/27 budget to restart construction, and the utility has opened a fresh procurement process that is available to bidders who were not involved in the first tender.
The faecal sludge treatment plant is designed to process 45.7 cubic metres a day, while the landfill is sized to take 35.9 tonnes of non-organic solid waste daily. The scope also covers a composting facility that will treat organic waste and produce organic fertiliser, together with storage areas for sorted plastics, glass and metals destined for recycling. Construction is programmed for 16 calendar months from award, with payments processed through the African Development Bank's direct payment disbursement method.
A mandatory site visit is scheduled for 30 September and an optional online pre-bid meeting for 2 October. Bids are due to WASAC Development Ltd on 27 October 2026 and must carry a US$20,000 bid security in the form of a bank guarantee. The re-tender sits inside a wider national build-out of waste infrastructure: the Musanze faecal sludge treatment plant and landfill is estimated at Rwf 4.55 billion on a 6.8-hectare site, and the Karongi and Rusizi facilities carry a combined budget of Rwf 4.74 billion.
The programme places treatment plants and landfills in secondary towns as well as in the capital. The Kigali Municipal Solid Waste Management Facilities project, which includes the Nduba sanitary landfill and auxiliary infrastructure, is budgeted at Rwf 45.03 billion through 2028, with Rwf 12.03 billion allocated for 2026/27, while about Rwf 1.5 billion has been set aside for operating and maintaining the existing Nduba site. Contractor performance has been a recurring issue across the portfolio: Phase I of the Kigali Centralised Sewerage System was also held up by a contract terminated in May 2026, and preparatory work on Phase II is on hold until Phase I is completed.
