Case Study Overview
Diving and confined space entry support to Jacobs Engineering condition assessments of structures.
Diving contractor responsible for all health & safety planning and team/equipment support to Jacobs engineers. Provision of Diving Project Plan and Confined Space Entry MS/RA.
Full surface supply diving equipment and team for down stream underwater inspections at Twerton Sluice. Confined Space entry team and equipment for access in to Ashton Vale Strorm Overflow chamber including provision of tools and Cygnus Ultrasonic Thickness meter to record residual thickness of steel sheet piles forming chamber.
At a glance
- Client Name: Jacobs Engineering on behalf of EA
- Location: Twerton Sluice, Bath (diving) and Ashton Vale Storm Overflow, Bristol (confined space entry)
- Project Value: Award £5,000, Outturn £5,000 (NB support costs only)
- Programme Duration: 4 days including mob/demob, 2 days on site Twerton, 1 day Ashton Vale – all work completed in 4 days.
- In-House resources Work: Provision of 3 man R7M team with surface demand diving equipment plus confined space entry equipment to support Jacobs diving engineer.
- Contract: ABP Purchase Order agreement
The Solution
NB Jacobs Engineering staff now employed by R7M since 2009.
Provision of containerised dive system on Hiab lorry c/w with crane and man riding basket to provide safe access/egress to diving engineer over high sided river walls. Diving supervision restricted down stream diving only due to hazard of differential pressure on up stream side. Recommendation to deploy mini ROV for upstream inspections. Executed safe management of both diving and confined space entry to allow meaningful inspection of structures.
SEE RELATED CASE STUDIES
Brighton Marina
Phase 2
In order to accommodate a new luxury apartment block in Brighton, part of the marina needed to be reclaimed using sheet piled cofferdams. This would enable the water to be kept out and foundations to be built for the stunning seafront properties. Red7Marine supported the installation of a sheet pile twin wall cofferdam.
Oldbury
Red7Marine installed replacement Active Effluent Discharge Lines at Oldbury power station as part of the on-going care and maintenance works. Red7Marine’s previous project experience on similar projects consisting of works on subsea pipeline and outfalls at Bradwell and Sizewell nuclear power stations, positioned the company as the ideal marine partner for client, Magnox.
Emirates Cable Car
The Emirates cable car was installed to provide a pedestrian link across the River Thames between the Royal Docks and the Greenwich peninsula. Red7Marine worked with Bachy Soletanche in a joint venture to install the foundations for the one-kilometre long cable car using marine rotary bored piling.
Battersea River Pier
Red7Marine secured a contract at Battersea in December 2016 to install new tubular driven steel mooring piles for the Battersea Power Station river bus pontoon installation which is planned to be operational in Autumn 2017. Transport for London (TFL) decided to extend the river bus service after the number of housing developments at Battersea began to increase.
Middleton Sands Navigation Marker
This fast turn-around marine construction project involved the installation of a new tubular steel navigation marker pile at Middleton Sands, Barrow-in-Furness in 2017. The navigation marker was required to identify the sub surface obstructions and enable other vessels in the area to operate safely.
Liverpool 2 Deep Water Port Extension
Red7Marine was the marine partner of choice for BAM Nuttall when they constructed a piled combi-wall as part of the Liverpool 2 Dock Expansion that began in 2014. The construction of the container terminal was supported by four of Red7Marine’s jack up barges; the Haven Seariser 1, Haven Seariser 2 and the Haven Seariser 3 and the Haven Seajack as it carried out rock socket piling works.
Weston-Super-Mare
The Red7Marine team was chosen to provide specialist marine plant and personnel to aid the redevelopment of the Weston-super-Mare Grand Pier after it was destroyed in a fire in 2008. Red7Marine supplied the Haven Seajack 4 assisted in the pier construction works. Its previous experience in pier and marina construction works made it the ideal project partner for this development.
Bradwell Power Station Barrier Wall Removal
Red7Marine is a leading provider of equipment for marine demolition and is skilled in dismantling structures that are beyond the reach of ordinary demolition contractors. In 2012, Red7Marine removed approximately 800 tonnes of steel in the Blackwater Estuary from the Bradwell nuclear power station water intake structure.
Fingringhoe Firing Ranges
Red7Marine installed scour protection and provided remediation on damaged sections of the flood defences to preserve areas of the salt marsh at the Fingringhoe firing ranges in Essex. Scour protection and remediation techniques are used to control erosion in both estuarine and the offshore environments.