company-history

  • 1991 Business started operations in Sydney

  • First "Bothar Built" auger boring machine - a 900mm diameter 3 cylinder machine

  • First "Bothar Built" auger boring machine - a 900mm diameter 3 cylinder machine First job for Integral Energy (Sydney) - 30m of 18" diameter steel casing for electrical cables

  • 1993 Established presence in Queensland market

  • 1994 First "Bothar Built" tunnel boring machine (TBM) manufactured - an 1800mm diameter TBM

  • Completed first major tunnelling project - Oxley to Logan Trunk Water Main

  • Completed first major tunnelling project - Oxley to Logan Trunk Water Main Completed first excavation by drill and blast and pipe jack in rock up to 400mpa of 1200mm diameter pipe at Nerang on the Gold Coast

  • 1995 Company splits from parent

  • Undertake 3km of 400mm diameter auger boring crossings between Young and Botany, in Sydney, NSW for the Moomba to Sydney Ethane Line

  • 1997 Largest “Bothar Built” tunnelling machine manufactured to date – a 2800mm diameter TBM

  • Completion of Coronation Drive Drainage Project in Brisbane, Australia, from the Inn On The Park Hotel to the Brisbane River

  • 2000 Largest new “Bothar Built” tunnelling machine manufactured to date – a 2500mm diameter TBM

  • Completion of Black Street Stormwater Drainage at Milton, Brisbane, Queensland for Brisbane City Council 350 meters of 3000mm diameter tunnelling for installation of Reinforced Concrete jacking Pipe from Lang Park to Brisbane River

  • 2002 Completed 250m of 1200mm tunnelling in Brisbane CBD for Gandel (Queen Street Central Stormwater Diversion Project)

  • Tunnelling was under a major CBD road and mall, involving shaft and manhole construction, traffic control, survey and community liaison

  • 2005 Completed Isaac Street Stormwater Relief Drainage project for Brisbane City Works including 130m of tunnelling from 1500mm up to 2100mm

  • 2007 Completed over 600 metres of tunnelling from 1350mm up to 2100mm for Liverpool City Council on the Central Business District Tunk Storm Water Drainage Project for the installation of Reinforced Concrete Jacking Pipe

  • 2010 Expands to Middle East

  • Opens office in Abu Dhabi

  • Commence first micro-tunnelling job – 1.7km of 2000m m diameter for insallation of Reinforced Concrete Jacking

  • Pipe for 400KVA Cables Works

  • 2011 Opens office in Kuwait

  • Awarded first project in Kuwait – 15km of various diameter (ranging from 400mm to 1000m) for sewerage system upgrade

  • 2013 Petroserv International Formed

  • In June, Bothar received a significant equity injection from Petroserv Limited LLC, a wholly-owned Qatar company. Petroserv International was formed and opened its oil and gas business office in Brisbane

  • Executed a number of major projects including the Hunua Project in New Zealand, a 506 metre flood relief tunnel in Brisbane, the Al Sowa major sea bed crossing in UAW, and over 80 coal-seam gas export pipeline crossings for major CSG-to-LNG owners

  • First microtunnelling job for Petroserv Completion of Bothar’s first microtunnelling job for Petroserv Limited in Doha, Qatar

  • Bothar achieved independent certification. Bothar achieved independent certification of its safety management system to AS4801 & OHSAS 18001.

  • Established in-house certificate III in trenchless technology

  • Established in in-house Certificate III in Trenchless Technology in partnership with NSW TAFE, which provides the company with a nationally recognised means of professional development for key staff

  • 2014 First Bothar Built FSAS Microtunnelling machine

  • The first Bothar built FSAS Microtunnelling machine successfully executes a major contract for Gold Coats City Council. . Second larger diameter FSAS machine also commissioned and successfully completes maiden project for the Brisbane City Council.

  • Bothar launch into the South Africa market and exhibit at the No-Dig South African convention in Pretoria, South Africa

  • 2015 April - Coleman Microtunnelling is acquired by the Bothar Group of Companies

  • Aug - The Bothar Group of Companies, through Coleman Microtunnelling, complete first project in South Africa, the Mafenya Reservoir Project.

  • Sep - Coleman Microtunnelling awarded the KIPP seawater intake and outlet tunnels, a Ghanaian branch is opened in Accra, Ghana.

  • Nov - Bothar International opens its new office in the Dubai, United Arab Emirates FTZ.

  • 2016 April The Bothar Group of Companies launches new brand