Lac Seul - Kejick Bay Causeway

In 2008, Kejick Bay, a smaller First Nation community within the boundaries of Lac Seul First Nation, was still accessing their community by winter road despite proximity to Sioux Lookout and the Trans-Canada Highway. In July of that year, it was deemed necessary to design and construct the 600m causeway to provide all weather road access and a key transportation link between Kejick Bay and the mainland.

The primary benefit of the causeway is the improvement in the lives of the residents of the First Nation with reliable access to health centres, emergency services, secondary schools, and daily necessities such as groceries, infant needs and clothing. Secondary benefits include the stimulation of economic growth, reduced cost of living, and increased socio-economic opportunities for community members.

In general the project involved the design and construction of the following works:

• 680 m long quarried rock fill causeway with 2h:1v slopes

• minimum freeboard of 1 m to account for abnormally high water levels

• lane width of 4.5 m

• shoulder width of 0.6 m

• full length guide rail

• final riding surface composed of 200mm of screen pit run with a 100mm overlay of crushed granular ‘A’

• installation of causeway and bridge signage

• construction of pressure treated timber crib structures for bridge

• installation of a 24m long prefabricated steel modular bridge complete with a pedestrian footwalk