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Carnon Contracting

Geotechnical & Civil Engineering


The latest industry news updates from Carnon Contracting

Retaining wall stabilisation in Hayle

Posted on: September 14th, 2018 by carnoncontracting

A collapsed retaining wall behind the Central Garage in Hayle is currently being stabilised by Carnon Contracting. Appointed by Adrian Nicholls Ltd for the work, the solution was developed by James Lockyear Associates and includes rock anchors and a mesh to stabilise the slope as the collapsed material is removed. A new anchored cast in-situ reinforced ground beam will be constructed upon which a new block wall with granite facing will be built by Adrian Nicholls. The anchors are extended through the new wall, the void behind backfilled with no fines concrete and the drive above resurfaced. The R25 anchors were installed using Carnon Contracting’s CID 80 Marini mast mounted on an 8T excavator. Work on site is due to be completed in October 2018.

Work in progress in Looe

Posted on: September 14th, 2018 by carnoncontracting

Work is ongoing at the new Downs Road car park in Looe. Carnon Contracting have been employed by West Looe Town Trust to strip the site and install a gabion retaining wall along with the ground works and landscaping for the construction of a new 18 space car park. Due to the sloped site, the drainage solution involves sub surface dams and permeable paviors to control surface water and run off. Completion is anticipated in early October 2018.

Essential safety work at St Ives Station Car Park

Posted on: August 1st, 2018 by carnoncontracting

Carnon Contracting has recently completed extensive essential repairs and stabilisation works to the embankment face in St Ives Station carpark on behalf of Cormac. The embankment, which ranges between 12m and 16m high, had been showing signs of structural instability in places.

A total of 485no ground anchorages have been drilled into the rock face to secure the surface to more stable layers beneath. The installation of rockfall netting, cables and plates along with areas of corbelling at lower levels has completed the stabilisation project.

Installation of the anchors has been supplemented with a layer of reinforced sprayed concrete to give added stability and protection against further deterioration.

For more information, visit the Cormac web site here.



Carnon Contracting steps up accreditation

Posted on: July 30th, 2018 by carnoncontracting

Carnon Contracting is now a member of the British Drilling Association (BDA), reflecting our increasing emphasis on the range of drilling services we offer across the South West.

We have also successfully completed our annual CHAS accreditation review. CHAS (Contractors Health & Safety Assessment Scheme) audits all aspects of an operator’s health and safety, from general H&S arrangements and work equipment procedures to health surveillance for employees.

CHAS was a founder member of SSIP (Safety Schemes in Procurement), an organisation which promotes a common standard for assessment for supply chain health and safety compliance.

Falmouth piling contract nears completion

Posted on: June 15th, 2018 by carnoncontracting

Carnon Contracting are currently on site installing 195 no. 219mm diameter Odex piles to facilitate the construction of a commercial development at the Bickland Industrial estate in Falmouth.

Midas Construction are the principal contractor, with Carnon Contracting working for Morcom Construction Ltd who have been appointed to carry out the ground works package. The site was levelled using an earthworks cut and fill exercise, and then piles were installed through the fill material to found in the Mylor slate formation beneath.

The piles are end bearing and range in depths between 6m to 19m. They are reinforced with either a central 25mm bar or, where piles have lateral loads, 6x16mm diameter reinforcement cages are installed up to 8m in length.

The contract duration is four weeks, and due to complete this month on programme.

Mylor Boatshed contract gets under way

Posted on: April 10th, 2018 by carnoncontracting

Mylor Bridge


Carnon Contracting are currently on site installing 54no. 219mm diameter Odex piles to facilitate the construction of a new boatshed in Mylor Bridge for Brady Construction. Piles vary in length from 6m up to 9m with a 190mm being drilled into the bedrock, and are being installed by a Beretta T44 drill rig. Value engineering by Carnon Contracting during the tender stage reduced the number of piles by optimising the design and reducing pile lengths and reinforcement diameter where possible. Target completion is mid-April to allow the structure to be erected at the end of April.

Construction Club Success

Posted on: March 14th, 2018 by carnoncontracting

Foot Anstey Construction Club
We were delighted to be sponsors of the Foot Anstey Construction Club meeting last Thursday in Truro.

Interest in the event was such that over 60 people attended to learn more about the activities and services provided by the Wheal Jane Group.

According to our hosts Foot Anstey Solicitors, it was one of the best attended events they have held.

We invite and encourage all individuals and companies involved in land of property development to contact us. Even better, you can visit us to see for yourself, or visit our websites to find out more about the unique range of services available not only locally but also all under one roof!

New Marini Mast

Posted on: December 20th, 2017 by carnoncontracting

Carnon Contracting expands its drilling capability with an investment in a new Marini CID80 drill mast fitted with a powerful MA100S ID Head. The lightweight mast can attach to an two- or five-tonne excavator using a bracket, allowing excellent maneuverability. The Marini mast is well suited to soil nailing, ground anchoring and micro piling applications, and better equips us to maintain the ability to access restricted sites in Cornwall and the South West.

The Marini mast is also available for contract hire. Please contact our office for further details.

Big progress underway at Falmouth Docks

Posted on: December 7th, 2017 by carnoncontracting

Carnon Contracting - Eastern Breakwater, Falmouth DocksCarnon Contracting are near completion of the first phase of a project on the Eastern Breakwater Jetty for Fugro Geoservices Ltd to install new pipework for fuel transfer within Falmouth Docks.

Carnon Contracting have installed ten piles through the existing jetty with 6.5m of free length casing beneath the jetty to shore level. The piles were advanced through the shoreline rock armour and the overlying silts before founding in bedrock. They were installed using 273mm diameter threaded permanent casing. The casing was advanced two metres into the bedrock before a further two metre socket was drilled. The pile was then reinforced with a 193mm diameter CHS reinforcement full depth to accommodate the loads in both the temporary and permanent conditions.

The condition of the existing jetty prohibited any load in excess of 3.5N/mm2 to be imposed on the jetty. Carnon Contracting developed a temporary works design to allow access for the rig to install the piles, and then to utilise the piles for the formwork to cast the reinforced concrete slab which will sit on the piles.

The second phase of the project will commence shortly. Carnon Contracting will install two cast-in situ reinforced concrete slabs over the piles and on the land side of the jetty to take the new fuel transfer system. Target completion for the contract is Christmas 2017.

Milestone at North Roskear

Posted on: November 22nd, 2017 by carnoncontracting

Carnon Contracting North Roskear


A contract for 29 residential units at North Roskear in Camborne for Kier Living has had a very successful restart this week for Carnon Contracting. The restricted nature of the site meant work for Carnon Contracting has been on hold following completion of the piling and mine remediation works in July 2017 during an initial phase. Carnon Contracting demobilised from site while Kier Living progressed work on the structures to allow the restart.

Carnon Contracting services included in this phase of the contract are the groundworks, drainage and service installation packages, followed by the landscaping which will be complete early in the New Year.

Brent Harvey, site manager for Kier Living, said, “I would also like to add a personal thank you to your men on site for their hard work and help in the difficult space given. They have been great with members of the public, and in maintaining the health and safety culture expected, under extreme circumstances on my site.”

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