Whether Amey Highways Ltd or BEAR Scotland Ltd have gritted any metal bridge structures with salt based products since 1 April 2001, and, i…

Glycol is normally applied instead of salt as a precautionary treatment when ice or light snow is expected on two bridges with metal decks; the A898 Erskine Bridge and A9 Kessock Bridge.Salt has been used on one occasion since 1 April 2001, when the Kessock Bridge was treated in this way on 8 November. Glycol had been applied to the bridge during the previous evening but further snow and the freezing conditions rendered this treatment ineffective. When this exceptional situation occurs at Kessock Bridge the procedure is to apply a light spread of salt to provide safe movement for traffic. This action was undertaken on the instruction of BEAR Scotland Ltd's winter maintenance duty manager and is in line with the practice that was followed before 1 April 2001.