Hi-tech Hydro-demolition in St Albans

Osborne has been working closely in partnership with Topbond and Sabre Jetting to utilise sophisticated hydro-demolition techniques to repair the Napsbury Lane Bridge on the A414 in St Albans.

Hydro-demolition uses high pressure water jets, delivered by hand, to safely remove corroded concrete from the structure to prevent any damage, whilst also minimising the risk for the operator.

The innovative technology has seen the use of a 12000lt tanker based jetting unit, with the run-off water being treated by Siltbuster HD recycling units. These remove large particles and neutralise the water’s high PH value before it enters the drainage system, ensuring it is safe to re-use. 

Terry Douris, Hertfordshire County Council Cabinet Member for Highways, said: “We’ve worked closely with our partner Osborne to run this project as smoothly as possible, as it is important for us to minimise the disruption for Hertfordshire road users, with speed and efficiency being a major focus.”

David Landeryou, Framework Manager for Osborne, explained: “The early contractor involvement and collaborative approach from the supply chain throughout has ensured we are on target to deliver the scheme on programme and within budget, with everyone going home safe every day.”