Eco-Road Hero Approach


The Issue

Mining roads are often built with local materials from the lease

area. Materials are often selected on availability and can be

extremely poor, especially if having high clay content.

As a result, mining roads require a high level of maintenance

and often utilise graders and water carts to sustain safe and

productive operations. This can create a high rate of interactions

between the haul fleet and this ancillary maintenance equipment,

posing a significant safety risk of collision.

Problem in Focus

The Rural Municipality of Cornwallis, located in Manitoba,

Canada has a gravel mining precinct with 5 large extraction

leases. The gravel operations export 300,000 to 500,000 tonnes

of material per year in single and double trailer trucks. Their peak

volume saw typical traffic of 250 to 300 truck cycles per day.

The municipality is accountable for the maintenance of the

connector road from the gravel pit precinct, called Curries

Landing road, to the provincially maintained highway network.

This connector road also supports local farmers and other

community members. The road was a source of significant

complaints, with gravel extraction traffic causing the road to

wash board to an unacceptable level in under 3 days. This

created significant dust emissions and safety hazards.

Road maintenance teams were intervening every 2 days

Road maintenance teams were intervening every 2 days

to address wash boarding, potholes and ruts.

Their use of ancillary road maintenance equipment created the

equivalent of an additional 500 truck cycles

The Solution

Cornwallis installed a 3.2km section of Cypher Environmental’s

EarthZyme® to treat the road in 2015, which Eco-Road Hero

distribute to the Australian market. After the EarthZyme®

application, the intervention rate for maintenance was extended

from every 2 days to once per year. The scope of the annual

intervention was relatively minor, essentially recycling the

pavement materials at the edge of the road into the centre, in

order to restore the crown shape. There was no need to remove

wash boards, ruts or potholes in the EarthZyme® road.