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Middlehaven Dock piles installed

middlehaven bridge

Balfour Beatty and Dawson Wam have completed the ground works ahead of the installation of a precast concrete bridge.

The second of two 84t, 13.5m by 3.4m precast concrete units has been lowered into position on piles recently installed using a jackup barge as a working platform.

The £7.1M Middlehaven Dock Bridge and Road project forms part of a £68M regeneration programme in Middlesborough, and a new 30m ‘lifting’ bridge and 750m long link road will support the development at Middlehaven Dock.

Two types of pile were used on the project - 900mm diameter rotary bored piles for the landward piles; and 1200mm diameter cased rotary bored piles for the marine works.

Over seven weeks, the piles were installed from a jackup barge, which provided access above water, using rotary bored techniques. The marine piles were installed through a brick and concrete dock base and founded into the underlying mudstone to a level of -23m AOD.

According to Balfour Beatty the main challenge was installing the piles within the tidal environment. 

Balfour Beatty managing director for North and Midlands East delivery unit Stephen Semple said: “We’re making strong progress on the Middlehaven Dock Bridge and Road project. We’ve drawn on our experience to overcome numerous challenges including the need to work with the changing tides. We used precast concrete units to avoid the need to construct the bridge in situ which speeded up delivery and was the safest way to deliver the project.

 A further 34 precast concrete units will be lifted into position over the coming months, and the project is set to complete this summer. 

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