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COFFERDAM CUT: Dredging operations to remove the remaining temporary cofferdam surrounding the central lock and sluice complex of the £94M Cardiff Bay Barrage project began this week. The cofferdam was flooded at the beginning of March and the latest operation will allow joint venture main contractor Balfour Beatty-Costain to resume placement of precast concrete cofferdams. These will eventually form a new harbour for boats waiting to use one of the new locks. Sand removed from ...

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