Westnewton Bridge is a grade II listed building in Kirknewton, Northumberland, England. This Grade II English Heritage protected site was in use by cars and heavy goods vehicles, but Northumberland County Council were going to have to close it if action wasn’t taken.
The Overall Objective
Due to repair work being required to the bridge to enable its continued use. VolkerStevin were tasked with carrying out the repairs without causing harm to the local environment and watercourse.
To minimise disruption to the watercourse, the main river flow was redirected through one of the arches and a temporary coffer dam installed around the remaining two arches to provide a safe working area.
Due to the concrete work being carried out, ingress water had a high pH which required treatment before discharge.
Siltbuster provided a 3 stage chemical treatment system which was capable of treating flows of up to 80m³/hr whilst neutralising the high pH water.