Manitoba Historical Society
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Historic Sites of Manitoba: AECL Underground Research Laboratory (RM of Lac du Bonnet)

Construction of an underground research laboratory by Atomic Energy of Canada Limited, at a site east of Lac du Bonnet in the Rural Municipality of Lac du Bonnet, started in 1982. The laboratory consisted of above-ground support buildings and a 420-metre-deep structure in a granite batholith of the Precambrian Shield. AECL constructed the facility to provide a setting for research and development activities in support of its nuclear fuel waste management program. In 1990, the facility received an Achievement Award from the Association of Professional Engineers of Manitoba.

The laboratory was closed in June 2003 and below-ground instrumentation and surface buildings were removed. The decommissioning process was completed in 2010.

AECL Underground Research Laboratory

AECL Underground Research Laboratory (1991)
Source: George Penner

AECL Underground Research Laboratory

AECL Underground Research Laboratory (1991)
Source: George Penner

Aerial view of the former site of the AECL Underground Research Laboratory

Aerial view of the former site of the AECL Underground Research Laboratory (July 2019)
Source: George Penner

Former site of the AECL Underground Research Laboratory

Former site of the AECL Underground Research Laboratory (April 2019)
Source: George Penner

Former site of the AECL Underground Research Laboratory

Former site of the AECL Underground Research Laboratory (April 2019)
Source: George Penner

Former site of the AECL Underground Research Laboratory

Former site of the AECL Underground Research Laboratory (April 2019)
Source: George Penner

Site Location (lat/long): N50.25255, W95.86537
denoted by symbol on the map above

See also:

Historic Sites of Manitoba: Whiteshell Laboratories / Whiteshell Nuclear Research Establishment (LGD of Pinawa)

Sources:

Twenty years of underground research at Canada’s URL” by N. A. Chandler, WM '03 Conference, 23-27 February 2003, Tucson, Arizona, USA.

Closing of $40-M lab shocks Pinawa area,” Winnipeg Free Press, 18 May 2003.

Whiteshell labs closes underground facility forever,” Winnipeg Free Press, 8 December 2010.

This page was prepared by George Penner and Gordon Goldsborough.

Page revised: 4 April 2020

Historic Sites of Manitoba

This is a collection of historic sites in Manitoba compiled by the Manitoba Historical Society.

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Please note that inclusion in this collection does not mean that a particular site has special status or protection. Some sites are on private property and permission must be secured from the owner prior to visiting.

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