The LCA Board of Directors 2019-2020

Executive Team

Derek O'Connor

Past President

Derek O’Connor has been involved in the construction industry since his move to Canada from New Zealand in 1990. Derek’s ability to see the big picture has served him well as President & General Manager of Westco Construction Ltd. and President of Westco Drilling & Piling Ltd. He is an active champion of local business and has been passionately advocating as an LCA board member since 2011.  


Second Vice President

Richard Thiessen


Hailing from a small farming community, Richard Thiessen has establish himself as prominent member of the commercial construction industry in southern Alberta. Richard is the owner of Silver Ridge Construction, a commercial General Contractor in Lethbridge. With over 30 years of extensive experience in the construction industry, Richard lends his vast knowledge to several executive boards, including the Lethbridge Construction Association of which he is a long-standing member.


Darren Guenther

first Vice president

Darren Guenther is a civil engineer with 17 years of experience in the preliminary, detailed design and construction phases of several water and wastewater infrastructure projects as well as commercial and industrial mechanical projects in southern Alberta. For the past seven years he has been a partner at DMT Mechanical Ltd., responsible for all commercial and industrial projects. 


Francis Rankin   Lethbridge College

Francis Rankin

Lethbridge College


LCA Board Committees


Alberta Construction Association

Richard Thiessen


Alberta construction Safety Association

Darren Guenther


WCB / Safety Committee



Local Government Action Committee

Dan Wood, Colin Ward, Rich Thiessen, Derek O'Connor, 


Provincial Government Action Committee

Richard Thiessen


Scholarship Committee

Matthew Gilmore


Golf Tournament Committee

Matthew Gilmore, Joe Schwark


Standard Documents Committee