Redbridge Causeway is a deteriorating set of concrete bridges over the River Test in Hampshire carrying 60,000 vehicles each day. It was identified as one of 10 high priority road improvement schemes as part of a £3.5bn, five year investment programme to cut congestion and support economic growth in the South. Consisting of four concrete brides, the causeway is a key access to the Port and City of Southampton from the West, carrying freight and commuters over the River Test and the Southampton to Romsey rail line. It is the only direct route for pedestrians and cyclists to cross the river. The structure comprises four structures all of which require significant concrete repairs to the underside to protect over 100 supports. This project is expected to cost an estimated £25 million and will take approximately 18 months to complete.
Our client consulted with us early in the planning with a requirement for pontoon transport barges, working platforms and safety boats to facilitate this work. The modular pontoon solution consists of 2 25x3m walkway access installations and 4 double layered transport barges. All pontoons are installed with full edge protection and the addition of 2 safety boats each manned by two operatives patrolling 2 channels during low tide and 4 during high tide completes the full service Pontoonworks offer to this significant project.