Senqu bridge launch South Africa Lesotho marks a milestone in the LHWP Phase II and keeps Mokhotlong connected as the Polihali dam rises, senqu bridge launch south africa lesotho.

The highly anticipated Senqu Bridge launch South Africa Lesotho marks a significant milestone in the ongoing Lesotho Highlands Water Project (LHWP) Phase II, a massive cross-border initiative aimed at enhancing water security and fostering socio-economic development in the region. This impressive engineering feat is set to be officially unveiled, providing a vital transport link across the future Polihali Reservoir and ensuring continuous connectivity for communities in Lesotho’s highlands, even as existing routes become submerged by the rising dam waters. The completion of this bridge underscores the strong partnership between South Africa and the Kingdom of Lesotho in addressing critical infrastructure needs.

Key details of the Senqu Bridge launch and the Lesotho Highlands Water Project Phase II

• Official Unveiling: The Senqu Bridge is scheduled to be officially unveiled and declared ready for use by motorists on 22 April 2026.
• Location: The bridge is located in the Mokhotlong District, Lesotho, spanning the Senqu River valley.
• Project Context: It is a crucial component of Phase II of the Lesotho Highlands Water Project (LHWP), a multi-phased partnership between South Africa and Lesotho established on 24 October 1986.
• Cost: The construction of the Senqu Bridge cost approximately R2.4 billion.
• Dimensions: The bridge measures about 825 metres in length and stands roughly 90 metres high above the valley floor, making it the longest and highest bridge in Lesotho.
• Purpose: Its primary purpose is to ensure uninterrupted access across the Polihali Reservoir once the Polihali Dam is completed and water levels rise, maintaining connectivity to the national A1 route linking Mokhotlong to Maseru.
• Engineering Marvel: The Senqu Bridge is Lesotho’s first extradosed bridge, a hybrid design combining cable-stayed and prestressed girder systems, constructed using an incremental launching method. This method minimised disturbance to the environment and enhanced worker safety.
• Contractors and Consultants: The bridge was constructed by the WRES Senqu Bridge Joint Venture, comprising Webuild (Italy), Raubex Construction (South Africa), Enza Construction (South Africa), and Sigma Construction (Lesotho). The design and construction supervision were led by Zutari (formerly Aurecon Lesotho), in collaboration with White Life Consultants (Lesotho) and Leporogo Specialist Engineers (South Africa).
• Broader LHWP Phase II Components: Phase II includes the construction of the Polihali Dam (a 165-metre-high concrete-faced rockfill structure, over 50% complete), a 38-kilometre transfer tunnel linking Polihali and Katse reservoirs, and two other major bridges (Mabunyane and Khubelu bridges).
• Economic Impact: The project generated approximately 250,000 person-days of employment, with a peak workforce of about 1,200, predominantly Basotho nationals. Procurement strategies prioritised local enterprises in both South Africa and Lesotho.
• Ministers Involved: Ahead of the official launch, South Africa’s Water and Sanitation Minister Pemmy Majodina and Lesotho’s Minister of Natural Resources Mohlomi Moleko will unveil the Tunnel Boring Machine at the Polihali construction site on 20 April 2026.

A full detailed summary of the story: The Senqu Bridge launch in the context of the Lesotho Highlands Water Project

The upcoming Senqu Bridge launch South Africa Lesotho on 22 April 2026 in Lesotho’s Mokhotlong District signifies a monumental achievement within the expansive Lesotho Highlands Water Project (LHWP) Phase II. This isn’t just any bridge; it’s a vital artery, designed to connect communities and maintain crucial transport links across the Polihali Reservoir, an area that will eventually be submerged once the Polihali Dam is filled. Without this bridge, vast areas, including the A1 route linking Mokhotlong to Maseru, would be cut off, impacting livelihoods, access to essential services, and economic activities.

The LHWP itself is a long-standing, multi-phased partnership between the governments of South Africa and the Kingdom of Lesotho, initiated by a treaty signed on 24 October 1986. Its primary goal is to harness the Orange–Senqu River system, providing water to South Africa’s economically crucial Gauteng province, while also generating hydropower and fostering socio-economic development in Lesotho. Phase I, completed in 2002, laid the groundwork with dams like Katse and Mohale. Phase II, which officially began construction in 2014 but saw key developments in 2022, is an even larger undertaking, estimated to cost around R42 billion.

The Senqu Bridge is a true marvel of modern engineering, being Lesotho’s first extradosed bridge. This innovative design cleverly combines the strengths of both cable-stayed and prestressed girder bridges. Spanning approximately 825 metres in length and towering roughly 90 metres above the valley floor, it’s not only the longest and highest bridge in Lesotho but also a testament to ingenuity in a challenging, high-altitude environment. The construction, carried out by the WRES Senqu Bridge Joint Venture (a consortium of Italian, South African, and Lesotho companies), used an incremental launching method. This technique was vital for building safely across the deep gorge while minimising environmental impact.

Beyond the impressive bridge, Phase II encompasses other significant infrastructure, including the massive Polihali Dam, which is already over 50% complete. This dam will create a reservoir of over 5,000 hectares, significantly increasing water supply capacity to South Africa. A 38-kilometre transfer tunnel, linking the new Polihali Reservoir to the existing Katse Reservoir, is also nearing its halfway mark. The LHWP is not just about water and power; it’s a catalyst for regional integration and development. The project has created significant employment opportunities, particularly for Basotho nationals, and has channelled investments into local businesses. As the Senqu Bridge launch South Africa Lesotho draws near, it highlights the successful collaboration and the long-term benefits these nations continue to reap from this strategic partnership. For more information on similar developments, you can check out trending news.

Questions and answers from the community about the Senqu Bridge and LHWP

• What exactly is the Senqu Bridge for?
  The Senqu Bridge is a critical transport link built to ensure communities in Lesotho’s Mokhotlong District remain connected to the national road network (A1 route) even after the Polihali Dam is completed and its reservoir submerges existing roads. It replaces low-level crossings that would otherwise be inundated.
• When was the Senqu Bridge officially opened or launched?
  The Senqu Bridge is set to be officially unveiled and declared ready for use by motorists on 22 April 2026.
• How much did the Senqu Bridge cost to build?
  The construction of the Senqu Bridge was approximately R2.4 billion.
• What is the Lesotho Highlands Water Project (LHWP)?
  The LHWP is a bi-national project between South Africa and Lesotho, established in 1986. Its main objectives are to supply water to South Africa’s Gauteng province and to generate hydroelectric power for Lesotho, while also promoting socio-economic development.
• What makes the Senqu Bridge an engineering achievement?
  It is Lesotho’s first extradosed bridge, a hybrid design combining elements of cable-stayed and prestressed girder systems. Its construction involved advanced techniques like the incremental launching method to build across a deep valley, minimising environmental disruption and ensuring safety.
• Who are the main companies and institutions involved in the Senqu Bridge project?
  The bridge was built by the WRES Senqu Bridge Joint Venture, which includes Webuild (Italy), Raubex Construction (South Africa), Enza Construction (South Africa), and Sigma Construction (Lesotho). Zutari (formerly Aurecon Lesotho) led the design and supervision. The overall LHWP is managed by the Lesotho Highlands Development Authority (LHDA) on behalf of both governments.