Case Study Overview
Red7Marine were approached to provide various access and craneage solutions to allow the construction of a new sewage treatment centre to be constructed in the small Cornish village of Polperro. The village itself had very poor road access meaning all works and deliveries had to utilise marine plant.
At a glance
- Date: June 2010
- Programme Duration: 2 months
- Project Number: 2244
- Value: £366,000
- Client: Dean & Dyball Civil Engineering
- Principal Contractor: Dean & Dyball Civil Engineering
The Challenge
The solution proposed was the utilisation of Red7Marines Haven Seaway Jack Up Barge to house a 100 tonne crawler crane which in turn would be used to build a temporary jetty. This crane was then to be tracked from the jack up onto the jetty, as illustrated above, allowing it to be used for the duration of the build.
Initially Red7Marine had to perform a dive survey, from the Haven Seaway, of the area to ensure the foundation fixings of the temporary jetty were suitable. The barge was then employed for craneage operations, lifting various components of the temporary jetty from Red7Marine’s 16m by 8m modular supply barge, which was towed to and from the loading area in Par Docks by Red7Marine’s Haven Supporter Stan Tug.
Red7Marine’s specialist plant was utilised to provide the client with the safe and efficient access solution required to deliver the new sewage treatment works at Polperro.
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.
