15 Dock Cassion

The 15 Dock Caisson is a vital asset for our client, facilitating safe and reliable access for vehicles, plant equipment, and pedestrians across the dry dock. Our scope of work involved the complete replacement of all surfaces and balustrades, ensuring enhanced safety and durability.

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Client

Location

Portsmouth Dockyard

Services

Engineering, Construction

Overview

Our scope of work on the 15 Dock Caisson included removing all deck surfaces, which consisted of three layers of marine plywood of varying thickness, and replacing them with bespoke, anti-slip plywood. We also removed redundant steel penetrations and boundary bars throughout the structure. Additionally, we made welding repairs to corroded steel sections, replaced the balustrades, and installed new heavy-plate steel lift-up travel ramps with cast in wear plates to suit finished floor levels.

The Challenge

The finished surface boards were custom-manufactured by a subcontractor based on our provided dimensions, making accuracy absolutely critical due to the tight manufacturing lead times.

Solution

The simple solution was to measure once, twice, and even three times. Detailed drawings were provided, and each board was numbered and marked to streamline installation. This approach ensured a professional finish, with consistent expansion gaps throughout the caisson, all of which were sealed to prevent water ingress.

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Have a project in mind? Get in touch with our team to discuss your requirements and discover how we can deliver safe, efficient, and high-quality solutions.

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