The Bothar Group
of Companies

Bothar Group of Companies ("Group") is an international contractor with over 25 years of cutting edge experience, and comprises of three separate organisations; Bothar Boring, Coleman Microtunnelling and Bothar International.

Within the tunnelling contracting industry, the Group has an enviable track record, a minimal environmental footprint and a highly skilled and diverse capability range. Offerings include shaft construction, microtunnelling, TBM, Auger Boring, HDD and Bothar Built tunnelling machines.

The Group has offices in Australia, New Zealand, Singapore, Qatar, Dubai, Kuwait, South Africa, UK and Ireland and Ghana, with the capabilities of expansion into other geographical areas.

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Operational Areas

` Operational Areas


  • Bothar Kuwait Awarded Major Shaft & Tunnelling Contract

    Bothar have been awarded the construction of the shaft and tunnelling works for the South Al Mutlaa Housing Project in Kuwait by Kolin Insaat Turizm Sanayi ve Ticaret.  Execution planning and pr...

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  • Omani Graduates Learning with Bothar

    Bothar have executed an agreement with Jahzeem to provide young Omanis with training and work placement to enable the further enhancement and development of engineering talent, skill and experien...

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  • KPONE Seawater Intake Outtake Tunnel

    Marine recovery is near complete and preparations are underway to commence the final 1200m sub sea bed marine drive for the 2000mm ID sea water outlet tunnel in Accra, Ghana....

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  • Rous Treated Water Pipeline Tunnel

    Bothar design is in the advanced stages for the construction solution for the challenging treated water pipeline tunnel at the Night Cap Water Treatment Plant in Northern NSW, Australia.  The 15...

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  • Now Beneath Zambia

    Mobilisation for the crossings for the Lusaka pipeline project is underway with our advanced tunnelling equipment comprising of the latest auger boring in rock technology. The equipment is now tr...

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  • Mid East Trenchless Expo

    Bothar will be showcasing its impressive range of international tunnelling construction offerings at Stand 58 at Jumeriah Beach Conference & Exhibition Centre, Dubai, UAE on 13th and 14th Mar...

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  • Minimising Our Environmental Performance

    Congratulations to our Mid East and Australian operations who received independent certification of our project delivery approach to ISO14001 Environmental Management Systems...

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  • P007 C1 breaks another tunnelling record in Qatar

    Microtunnel achieved 838m of 3000mm id in a single drive....

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  • Company Rebrand

    Bothar Group of Companies Bothar Group of Companies went through a complete rebrand to establish a unique brand identity for each of the three companies....

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  • Production Records in Doha

    Over 22km of microtunnellig installed ranging from 800mm to 3000mm diameter, up to 575m drive length in deep shafts....

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  • Now Beneath Ghana

    Ghana Power Plant Coleman Microtunnelling was awarded the installation of 2.65km of 2000mm diameter seawater intake and outtake including radial drives and marine recovery for the 350 MW Kpone In...

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  • Quality Certification Achieved

    ISO9001 in the Middle East and Australia All Bothar Group of Companies’ operations are now independently certified to international quality standards....

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  • Innovation by Bothar Built

    Months of planning and preparation paid off when a Bothar Built TBM with a specially modified cutting head completed a challenging inner city live rail crossing in wet sand in 32 hours. Two crews...

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  • Bauma 2016

    In a few weeks’ time the world’s largest exhibition of construction equipment, the Bauma 2016, will start in Munich on April 11 and run through until April 18.  The Bothar Group of Compa...

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  • Bothar secure fourth major project in Qatar

    Bothar have been awarded the construction of the microtunnelling works for Petroserv Limited in Doha, Qatar. The Muaither project scope include the construction of approximately 8,000m of various...

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