A new winter maintenance regime on Rochester Bridge reduces our carbon footprint while maintaining safety and with minimum disruption.
A towable gritter is now being pulled across the bridge by our electric van, which is powered by 100% renewable energy.
The gritter will distribute potassium acetate crystals, which are a more environmentally friendly alternative to salt grit for tackling freezing conditions.
Potassium acetate is much less corrosive than salt, meaning it causes less damage to the metal elements of the bridge, leading to a reduction in maintenance activity.
In addition, the crystals remain effective for longer, requiring less frequent treatments and thereby minimising disruption to the public.
A sprayable potassium acetate solution is used on the footways. This is distributed using an electric pump that can easily be carried on the back.
As it is biodegradable, potassium acetate is less harmful to the environment, which is important for a structure which crosses a tidal river.
The work is carried out at no cost to the public and at net zero carbon. It has been recognised as a Best Practice activity during a recent Considerate Constructors Scheme review.
Previously, the gritting was carried out by Medway Council.