Amanziflow Projects
Amanziflow scour gate installation at Neckartal dam, showing the diversion weir, inlet works and site plant on the dam structure
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50+ years · Four continents · 200+ installations

Our legacy: half a century of engineering excellence.

For over 50 years, Amanziflow Projects has stood at the forefront of global water management.

Backed by more than 100 years of combined engineering experience, our team has successfully delivered over 200 installations across four continents. We are not merely a supplier of equipment; we are a dedicated provider of enduring solutions for the world's most critical water infrastructure.

50+
Years of excellence
100+
Years combined experience
200+
Global installations
4
Continents
Workers in safety gear standing on a metal platform with large waves crashing against a seawall behind them
Zero

External power sources, sensors or controllers

The "Risk-Free" automation advantage

True automation. Not electro-mechanical approximation.

At the core of Amanziflow's global success is our commitment to reliable automation. We are world leaders in self-actuating water control equipment.

Unlike traditional systems that are electro-mechanically operated, our gates and valves are completely automatic. They are entirely risk-free — operating without reliance on external power sources, immune to operator error, and requiring virtually zero maintenance. When the safety of a dam, canal or municipality is on the line, our equipment performs flawlessly.

  • Runs without external power
  • Immune to operator error
  • Virtually zero maintenance
End-to-end core services

One team, from concept to handover

We partner with consulting engineers, municipalities and government bodies to manage the entire process seamlessly. Our core capabilities span every stage of a project's life.

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  1. 01

    Design & Engineering

    Working alongside consulting engineers to specify the exact automatic equipment required for complex water challenges.

  2. 02

    Fabrication & Construction

    Building world-class, robust gates and valves tailored to specific environmental and hydraulic conditions.

  3. 03

    Installation

    Managing the complex logistics and physical implementation of our equipment on-site.

  4. 04

    Commissioning

    Ensuring every system operates perfectly before final handover to the client body.

Leadership

The directors

Amanziflow is driven by technical experts who understand the profound responsibility of managing water resources.

Roger von Holdt, Managing Director at Amanziflow Projects
Managing Director at Amanziflow Projects

Roger von Holdt

Pr Eng (Professional Engineer), B Eng Civil — Stellenbosch University

Based
Grahamstown, Eastern Cape, South Africa

Roger Von Holdt is an experienced civil engineering and project management professional with extensive experience in construction supervision, project operations, and the delivery of civil engineering projects across South Africa and Lesotho.

His career began in construction supervision and management with AVENG (Grinaker-LTA), followed by eight years managing civil engineering projects and operations in Lesotho, including large-scale infrastructure projects.

Roger joined Amanziflow in 2013 and has since played an important role in the company’s growth and project delivery. As Managing Director, he leads the company’s operations and oversees the management and implementation of engineering projects, ensuring practical and effective solutions for clients.

With his strong operational background and hands-on understanding of project execution, Roger is committed to delivering reliable, high-quality engineering solutions and advancing Amanziflow’s work in water infrastructure and control systems.

Leading projects. Delivering results.

Professional experience
  1. 2013 – 2020Amanziflow Director.
  2. 2013 – 2017Amanziflow Projects Director (Eastern Region RSA, Lesotho). Project management in the civil engineering sector, including design and implementation projects for Amanziflow.
  3. 2005 – 2013Civil engineering project management and project operations on large projects in Lesotho.
  4. 1998 – 2005Construction supervision and management with AVENG (Grinaker-LTA).
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Peter Townshend, Technical Director at Amanziflow Projects
Technical Director at Amanziflow Projects

Peter Townshend

Pr Eng (Professional Engineer), B.Sc Eng Civil — Natal University, 1969

Peter Townshend is a professional Civil Engineer with extensive international experience in civil, hydraulic and structural engineering. A graduate of the University of Natal, he has worked across the UK, Qatar, Africa, Australia and Peru.

Since 1976, Peter has specialised in automatic, self-regulating water control equipment. He founded Flowgate Projects in 1995, which became Amanziflow Projects (Pty) Ltd in 2008.

Peter has contributed to the full range of Amanziflow’s automatic water control equipment and holds a patent for the TOPS spillway gate. His expertise spans design, project management, installation and commissioning, including associated civil and structural works.

A passionate innovator and industry contributor, Peter has presented papers on water security and control and received two innovation awards from engineering associations.

His career reflects a lasting commitment to practical, innovative and reliable water control solutions.

Decades of innovation. Lasting impact on water management.

Professional experience
  1. 1969 – 1976Graduated as a professional civil engineer; consulting work specialising in civil, hydraulics and structural engineering.
  2. 1976Began involvement with automatic self-regulating water control equipment.
  3. 1995Founded Flowgate Projects to design and manage the range of automatic equipment.
  4. 2008Flowgate Projects transitioned into Amanziflow Projects (Pty) Ltd.
Background & recognition
  • 48 years of engineering experience, including projects in the UK, Qatar, Australia, Peru and across Africa.
  • Developed and holds the patent on the TOPS spillway gate.
  • Designs associated civil and structural works for dams and weirs, plus manual equipment — screens, stoplogs, grappling beams and canal gates.
  • Has presented papers and editorials on water security, and holds two engineering association awards for innovation.
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Lenetjie von Wielligh, Director at Amanziflow Projects
Director at Amanziflow Projects

Lenetjie von Wielligh

University of Pretoria — Civil & Structural Engineering

Lenetjie von Wielligh is an experienced Civil and Structural Engineer with a strong background in the building industry, specialising in civil and structural engineering, reinforced concrete, stormwater management, and project management. A graduate of the University of Pretoria, she has built her career across consulting engineering and structural design, developing a broad understanding of engineering challenges and practical project requirements.

Since joining Amanziflow Projects in 2018, Lenetjie has applied her engineering expertise to civil and structural engineering projects, contributing to the development of practical, reliable solutions for water infrastructure and water control systems.

Her approach to engineering is grounded in technical excellence, problem-solving, and a commitment to delivering solutions that make a meaningful difference. She believes that engineering is about more than designing structures and systems — it is about creating lasting value for clients, communities, and the environment.

Making a difference through purpose driven engineering.

Professional experience
  1. Nov 2006 – Feb 2012Structural engineer — Aurecon.
  2. Mar 2012 – May 2014Structural engineer — Sutherland.
  3. Jun 2014 – Oct 2014Structural engineer — Rula Bulk Materials Handling.
  4. Nov 2014 – May 2017Civil engineer — VIP Consulting Engineers.
  5. Aug 2017 – Dec 2017Civil / structural engineer — M&T Development.
  6. Jan 2018 – presentCivil / structural engineer — Amanziflow Projects.
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The wider team

One team across every discipline

Designers, fabricators, installers and commissioning engineers work as a single unit — so accountability never gets handed between contractors.

Design & engineering

Hydraulic sizing, specification and consultant support.

Fabrication

Precision fabrication and quality-controlled assembly.

Installation

On-site crews and logistics across four continents.

Commissioning

Testing, calibration and client handover.

Talk to the team