Minex contructed as the main contractor in the Ol Donyo Sabuk National Park a Seismometer - Tunnel for IRIS which worked together with the University of Nairobi.
A Seismometer was to be installed in the Tunnel for monitoring seismic activities. The tunnel has a length of 50 meters, a width of 2 M and a height 0f 2.5 M.
The entire tunnel and the portal were stabilized by shortcreting of 50mm thickness. The floor of the tunnel was finished with a 150mm thick Concrete slap The project was undertaken within a period of 3 months.