BARKING JETTY CONCRETE REPAIR WORKS

Project details

Barking Jetty was constructed in the 1930’s to import coal to supply the former Barking Power Station. The jetty is now used to provide pedestrian access to Barking Riverside Pier, which is used by the Thames Clipper River Bus service. The River Bus provides a vital transport link to the Barking Riverside site, one of the largest regeneration projects in the UK. The structure is a T-Jetty, with an approach length of 96m, and a jetty head length of 100m. Following a visual condition survey by Beckett Rankine, a number of Reinforced Concrete (RC) members were determined as being in poor condition. Following a competitive tender process, Southbay were awarded a package of works to repair the structure.

The project involved hydro demolition and sprayed concrete repairs to an operational jetty.

Initial works included the installation of scaffolding to allow the site team to safely access all areas of the structure. A Site Engineer was responsible for marking out all proposed repair areas. All existing pipework and services fixed under the jetty were then encapsulated to prevent any damage. To prevent any loose material from entering the river, protective sheets were wrapped around the scaffolding. Hydro demolition was used to remove damaged concrete from the identified areas to an agreed depth. Following removal of the damaged concrete, all reinforcement was inspected. Dependant on its condition, corroded reinforcement was then removed, allowing replacement steelwork to be resin fixed in position. All reinforcement was then coated with a protective coating system to prevent future corrosion. Spayed concrete was then applied in layers in accordance with the manufacturer’s specification. Temporary formwork was used to ensure the correct profile was achieved in accordance with the dimension of each structural member. Once a suitable coverage was applied to the repair areas the concrete was allowed to cure. Further works included the infilling of cracks within concrete members.

In delivering the works, the River Bus service remained operational throughout, with pedestrian access maintained along the broad walk on the top side of the jetty. A Traffic and Pedestrian Management Plan was developed, which ensured the public remained segregated from our works at all times. This involved programming material deliveries outside of peak hours. The project was delivered with no reportable incidents.

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