The Challenge:

Royal Borough of Kingston upon Thames challenged us to remove a three-decade old bridge in 36 hours.

The removal of the bridge was critical to Kingston Station Go cycle scheme, clearing the way for a shared pedestrian and cycle bridge.

The Solution:

We had early contractor involvement, combining our expertise with supply chain partner, Topbond. A programme that covered hourly and ten-minute intervals allowed early risk resolution. We propped up the bridge before cutting and used three restraint beams to prevent the bridge hogging after cutting. Meeting with Network Rail generated a solution as we used a 350 tonne crane to prevent toppling risk and cut bridge falling. We reached an agreement to utilise a Network Rail possession to extend our working window.

Difficulties with the project began when drivers accessing the nearby shopping centre ignored Traffic Management. This caused a one-hour delay. We re-opened the bridge underpass to traffic and enforced a car park entrance closure. Further into the project a rail incident caused delays to spiral to three hours. Kier used detailed communications to ensure the client was kept accurately informed throughout the project.

The Impact:

Despite the setbacks encountered, we removed the bridge and re-opened 16 hours ahead of permit expiry.

During this project we encountered delays which were out of our control. We maintained a positive and professional outlook that delivered the project ahead of time.

" Thank you for all Kier’s efforts interfacing with Network Rail in particular regarding work methodology. We are pleased the job completely safely and on time. "
John Riddle Senior Structures Engineer Topbond

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