15 May 2015

The Erwood Bridge Refurbishment Scheme, delivered for Powys County Council, has won the 2015 ICE Wales Innovation Award.

The scheme involved the demolition and reconstruction of existing concrete piers, cross heads and cantilever deck and parapets, to this 100m long four span composite bridge spanning the River Wye and located in a Site of Specific Scientific Interest and Special Area of Conservation.

The collaboration and early engagement of the site team and our sub-contractors enabled the demolition method to be changed from hydro demolition to cutting nearly 200m3 of concrete using concrete wire cutting, and an innovative method of lifting out the cut blocks, which minimized the environmental risk. This unique lifting method was incorporated into the temporary works supports which supported the jacked up deck and allowed pedestrian access over the bridge to be maintained throughout.

The project was completed within budget, three months early and to the complete satisfaction of the Client.

The ICE judges commended the ingenuity and innovative approach to the design and erection of the temporary works, without which access for the demolition and reconstruction work would not have been possible. The team are to be congratulated on the delivery of an excellent solution to a difficult problem resulting in a bridge once more fit for purpose.