Wire saw cutting of ship wrecks, offshore structures and subsea infrastructure. Specialist operations for shipowners, P&I clubs and salvage companies — from Norwegian coastal waters to international deployments.
Controlled dismantling of sunken vessels using diamond wire saws. Cuts through steel hull plating, frames and structural members with precision — minimising environmental disturbance and enabling controlled lift operations.
Wire saw cutting of reinforced concrete structures, bridge piers, quay walls and caissons below the waterline. Capable of cutting sections for controlled crane lifts or in-situ fragmentation.
Removal of offshore piles, monopiles and jacket structures. Wire saw operations allow precise below-mudline cuts — meeting decommissioning requirements without explosive techniques.
Emergency and planned removal of obstructions in port fairways, berths and navigational channels. Fast mobilisation with specialist vessels and dive support for time-critical operations.
ROV survey and inspection prior to wire saw deployment. Detailed site assessment, wire placement verification and real-time monitoring throughout cutting operations.
Integrated wire saw cutting as part of broader salvage operations. Works alongside crane barges, salvage tugs and wreck removal contractors — cutting to specification for lift plans and float-off operations.
Preliminary review of site conditions, structural data and operational constraints. We provide a written scope assessment and indicative cost range — typically within 48 hours of receiving documentation.
Pre-operation ROV inspection to confirm structural condition, sediment levels and wire saw access points. Survey data informs the cut sequence and equipment configuration.
Diamond wire rigged through the target structure by surface divers or ROV, depending on depth and conditions. Wire saw unit mounted on vessel or pontoon. Cutting commences under continuous monitoring.
Cut sections prepared for crane lift, tow-out or in-situ deposition as specified by the salvage plan. Full documentation and as-executed reporting provided on completion.
| Wire Type | Diamond wire, multi-strand |
| Material | Steel, reinforced concrete, cast iron, alloy |
| Mobilisation | Norway |
| Vessel | Dykkeservice 5 + support craft |
| Diver Cert. | IMCA / DNV approved |
| Geographic range | Norway, North Sea, international |
| Base | Kristiansand, Norway |
A 70-tonne excavator and a 700-tonne barge had foundered and were blocking the entire construction area at Norway's new deep water quay. Using underwater wire saw cutting, the excavator was sectioned into six pieces and fully recovered within six days — allowing other contractors to resume work almost immediately. The barge was divided into two ~350-tonne sections with 36 tonnes of lift chains installed beneath the hull on the seabed.
The 469-tonne vessel grounded during storm «Knud» in September 2018. Following multiple failed re-floating attempts, BOA Management engaged Kristiansand Bygg AS to section the hull using diamond wire saws. The wreck was divided into six sections, each lifted aboard crane barge Boabarge 42 and transported to Fosen Gjenvinning for recycling — completed within 26 days. The project received international coverage in Teknisk Ukeblad, NRK and Professionell Demolering.