Client: VolkerStevin Boskalis Westminster
Contract value: £2.5m
Contract date: Phase 1- 2014 Phase 2 - 2015
Capabilities: Coastal & marine infrastructure Coastal & Marine Infrastructure Projects Projects
Jones Bros operated as a sub-contractor to principle contractor VBA Joint Venture, to construct Phase 1: 8 rock groynes and Phase 2: 15 rock groynes, for the Clacton to Holland-on-Sea coastal protection scheme.
The £36m coastal protection scheme required approximately 270,000 tonnes of rock to construct the groynes, which will protect more than 3,000 properties from sea erosion. In order to meet the demands of the challenging scheme, Jones Bros utilised the latest GPS technology and had to work around local tidal tables.
Plant used to move rock for the new groynes into place was upgraded to include Trimble GCS900 Grade Control Systems. The GPS system, which allows accurate control of buckets and blades to within 20mm, allowed Jones Bros plant operatives to accurately install the rock groynes in water up to 150cm in depth.