Case Study Overview
Red7Marine was subcontracted by Farrans Construction, to provide specialist marine expertise to install the new pontoon facility at Galloper Offshore wind farm. Red7Marine supported various marine elements of the project including:
- The installation of bespoke 9no pontoons and two 20m access gangways
- Coordinating the fabrication, delivery and installation of an intermediate landing platform
- Load and installation of two 40m aluminium linkspans
At a glance
- Location: Galloper Wind Farm, Suffolk 2019
- Plant used: Haven Seaway Jack-up barge / Haven Seavoyager flat top barge
- What we did: Subcontracted by leading civil engineering firm, Farrans Construction, Red7Marine completed the engineering and marine installation for the new Galloper pontoon facility.
- Contract Value: £600,000
The Challenge
To comply with consents and licences, the marine piling needed to be completed by the end of September 2019. The contract was only awarded in June 2019 which meant the need for an efficient solution for the project to be executed within the given timeframe.
The team was able to effectively achieve this and received approvals, reviews, recommendations and clearances by the Marine Warranty Surveyor, who acted on behalf of the end users
– all in line with the project programme.
The Solution
The 120m pontoons being installed were manufactured by A&P Group in the North East of the UK before being transported along the coastline to Harwich on a coaster vessel.
Once in Harwich, the pontoons were offloaded and assembled by Red7Marine to complete the installation, adjacent to the newly constructed O&M building.
The gate system together with the permanent works [piles and walkway system] were loaded out through our quay-side fabrication facility in the Port of Ipswich and were transported down the river to Harwich by the Haven Seavoyager for installation by Red7Marine·s team of specialists from the Haven Seaway, jack up barge.
- All site movements were planned to reduce risk and ensure safe operations were conducted, planning around tides and weather windows, reviewing detailed forecasts day-to-day
- Large scale parmanent works were designed, fabricated (in-house) and implemented on site by Red7Marine
- The flexibility of our 200t Haven Seaway jack-up barge and Haven Seavoyager flat top, allowed us to deliver the works despite the challenges faced, whilst our team’s determination meant that the project was completed in a timely manner.
Complete Package Delivery
Red7Marine provided equipment, crew and engineering support to the project to ensure our clients’ successful delivery.
Solutions Provider
Red7Marine provided specialist barge and marine experience to the project.
Skilled Team
Red7Marine’s operations and engineering teams are highly skilled and experienced in the marine environment providing partners with an industry-leading service.
SEE RELATED CASE STUDIES
Westminster Pier Extension
The Westminster Pier Extension allows more frequent River Bus services between Woolwich and North Greenwich to Westminster. The extension is a key part of the River Action Plan to improve TfL’s piers and increase capacity for passengers before 2020. Red7Marine designed and built a custom pile gate for the project. The barge was reviewed to support a 180t crawler crane for piling operations and was then further reviewed with an additional RH28 drill rig on board.
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.
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.
