Conducting structural movement surveys to identify existing and emerging weaknesses in assets.

assets hero grid

Jagersfontein Tailings Dam Collapse

Date: 11 September 2022

Location: Free State, South Africa


The collapse of the Jagersfontein diamond mine tailings dam released a flow of tailings sludge, which poured across the landscape, damaging more than 26 square kilometres of grazing land and reaching water systems used for drinking and agriculture. It resulted in three deaths, over 300 non-fatal injuries, damage to over 100 properties and infrastructure, and the displacement of over 1000 people.

Value.Space’s assessment

Value.Space conducted a satellite-based assessment of the Jagersfontein tailings storage facility and identified several clusters of bidirectional movement on the structure. Notably, movement clusters were identified on the exact sections of the tailings storage facility dam that failed. Data timelines of the deformation clusters show bidirectional movement starting almost three years before the failure, in November 2019, with the warning threshold reached two years before, in July 2020.

footer mesh

Get in touch with Value.Space

London office

ValueSpace Technologies Ltd

152-160 City Road

London, EC1V 2NX


Tallinn office

ValueSpace OÜ

Ehitajate tee 114

Tallinn, 13517


value space logo

Copyright © 2024 Value.Space - All Rights Reserved.