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uMkhomazi Water Project – Phase 1

Country
South Africa South Africa
Status
Proposed
Area Of Operation
Water and Sanitation Water and Sanitation
Type
Sovereign

Quick Facts

Concept Approval Date
5 August 2026
Proposed Limit of NDB Financing
USD 731 million / ZAR 4 billion
Borrower 1
The Republic of South Africa
Borrower 2
Trans-Caledon Tunnel Authority
Project Implementing Entity 1
Trans-Caledon Tunnel Authority
Project Implementing Entity 2
uMngeni-uThukela Water

More About This Project

The water supply across six KwaZulu-Natal municipalities – eThekwini, uMsunduzi, uMgungundlovu, Ugu, iLembe and Harry Gwala (the Project Area), has been in deficit since 2016 due to underinvestment and sustained urbanization and population growth.

The Project Area is home to around 7 million people, generating most of the provincial economic output. It faces severe water curtailments caused by escalating supply interruptions, which have intensified since late 2024 and culminated in the introduction of an emergency rationing plan in March 2026, exposing a persistent water supply gap.

The Department of Water and Sanitation of South Africa has proposed the uMkhomazi Water Project to augment water supply and safeguard water security in the Project Area.

The Project comprises:

Component I. Raw Water Augmentation: Construction of a storage dam, a conveyance tunnel and a gravity-fed pipeline connecting the tunnel outlet directly to the water treatment plant (WTP).

Component II. Potable Water Delivery: Construction of a WTP, and a potable water pipeline to connect the WTP to the bulk potable water distribution network.

The Project aims to augment bulk water supply to the municipalities in the Project Area, in line with the National Water and Sanitation Master Plan and National Water Policy White Paper, which prioritize immediate actions to secure bulk water supply and reduce the existing deficit. The main outcome envisioned under the Project is an additional 210 million cubic meters per year of potable water supplied to the Project Area.