Lerwick Dredging and Reclamation
| Client | Lerwick Port Authority | Value | £125m |
| Location | Shetland Islands | Contract | I.C.E Conditions of Contract, 7th Edition (Sept 1999) |
| Date | 2007 – Nov 2008 |
Project Information
The 2008 dredging and reclamation works were one of the largest marine projects to be carried out in Scotland in recent years and, at a total cost of £12M were the largest single investment in the port to date, and were executed by Westminster Dredging Co. Ltd.
Arch Henderson designed, procured and project managed the dredging and reclamation project to remove in excess of 500,000m3 of bulked dredge fill to create improved deepwater access (-9m CD) for existing general, oil logistic and future offshore decommissioning trade.
Dredging to nine metres below Chart Datum brought a range of significant benefits, particularly to the pelagic fishing and offshore oil sectors. These included wider and deeper access to Greenhead Base, an improved alignment of the new deep water north channel, and will enable access and berthing for larger vessels at the Shetland Catch pier. Also included were deepening of the landing berth at Heogan to 8 metres, and deepening of an area at Mairs Yard, north of Holmgarth for a future quay.
The project further involve using dredge material to reclaim approximately 5 hectares of seabed protected with around 70,000 Tonne of rock armour to accommodate a future decommissioning lay down area. Project design commenced in 2007 and all works were completed on programme and to budget in November 2008