When does salting take place?

CORMAC Solutions Ltd's staff monitor the weather conditions throughout the day and night, liaising closely with forecasters specifically employed for this task. In addition there are 11 roadside sensors that measure road temperature and other important factors, relaying this information back to both the forecasters and CORMAC staff.

Salting is usually undertaken so that the work is completed before freezing occurs. However due to Cornwall's climate a typical forecast may predict near freezing temperatures combined with shower activity. This can present a number of operational difficulties as rain, hail or sleet can wash salt off treated roads, leaving them prone to freezing.  This makes forecasting difficult, and presents problems in planning salting activities. Therefore, great care is taken, especially in quickly-changing conditions, to take every reasonably practicable step to prevent freezing roads. 

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The precautionary salting network is covered by 25 routes, which in normal circumstances ensures that salting activities are completed within three hours. Each salting lorry has been carefully maintained to ensure that the correct amount of salt is spread on the roads, and all the drivers are fully trained and accredited for the work.

The salt used is provided from salt mines in Northern Ireland. We keep a large stockpile of salt under cover.  This keeps it dry which:

  • Ensures that its effectiveness is not reduced as exposure to rain can result in soluble active agents running off.
  • Ensures even spreading as the salt remains granular.
  • Reduces any adverse environmental impacts.