Dams play a critical role in providing water for a wide range of purposes, from agriculture and industry to energy and water supply. However, dam leaks are an inevitable challenge. While not every leak demands immediate attention, those that do can be costly and time-consuming to address. Traditional methods often rely on drilling multiple “trial and error” wells, which not only prolong the investigation but can further compromise the structure’s integrity. Stripping away the top layers of sediment or draining the reservoir to find the precise leak pathway would make the process simpler, but these options are neither practical nor affordable.

A far better solution is to use advanced, non-intrusive technology to pinpoint the exact location of the leak. By gathering specialised data with highly sensitive instruments and using cutting-edge geophysical technology, we can create detailed 3D models of the subsurface. This allows us to map the flow path of the water, using sophisticated software to predict the ongoing effects. Much like a radiologist scans the human body to diagnose before surgery, we look beneath the surface of the dam to guide remediation efforts accurately and efficiently.

Proven and Trusted Technology

For over 12 years, Willowstick technology has been a reliable tool in the field of geophysics, building on breakthroughs from a range of scientific disciplines including geology, biomagnetics, and military applications. Its effectiveness has been proven time and again in mapping subsurface water pathways with precision.

Fast and Efficient Investigations

Most Willowstick investigations take days, not weeks. In many cases, initial feedback can be relayed to the client almost in real-time, providing rapid insights that allow us to adapt and refine our data collection as the investigation progresses. This speed enables clients to make informed decisions quickly, minimising disruption and avoiding costly delays.

Non-Intrusive Methods

Our investigations are conducted using existing wells or piezometers, eliminating the need for expensive drilling. By energising the water between the reservoir and the seep, we can visualise the flow paths beneath the surface without invasive methods. Many clients use these results as a long-term map of their structure, providing valuable insights without disturbing the integrity of the dam.

Full Pathway Mapping

We provide a complete map of the water’s journey from the reservoir to the point of leakage. By energising the water, we can trace its flow through individual pathways, offering a clear and detailed view in both 2D and 3D. This helps dam owners understand exactly how water is moving through their structure.

Tailored and Real-Time Insights

Our fieldwork is tailored to each project, and our ability to deliver near real-time data means that clients can see the condition of their dam almost immediately. If necessary, we can adjust our investigation while still on site, allowing for a more flexible and efficient approach. This ensures that decisions are based on accurate intelligence, not guesswork.

Ongoing Monitoring and Risk Assessment

Willowstick’s Compare™ feature allows clients to monitor changes in their dam over time, much like a dentist compares x-rays to track dental health. By comparing current results with previous investigations, clients can assess the effectiveness of remedial work, determine the level of risk, and make informed decisions about future actions. Regular monitoring offers a deeper understanding of a dam’s health than ever before.

Effective Across Complex Geologies

For dams built on complex terrains such as karst or fractured rock, Willowstick is an ideal solution. The conductive water paths and insulating rock formations provide excellent conditions for our electric current to map the leak pathways, making it easier to identify issues in even the most challenging environments.

Reducing Costs with Targeted Solutions

By pinpointing the exact location and depth of a leak, our clients can target their remediation efforts with precision. This not only saves time but also reduces costs by avoiding unnecessary repairs and guesswork. Efficient, targeted action leads to significant savings.

Trusted by Repeat Customers

With over a decade of experience in Willowstick investigations, more than 75% of our business comes from repeat clients. These long-term relationships are a testament to the accuracy and reliability of our technology, with clients returning again and again to monitor their dams and manage risks effectively.