Harbour construction works

Tender description

Design and build civil engineering marine works to redevelop the St. Ola Pier at Scrabster Harbour, Thurso, Scotland. Negotiated procedure with prior call for competition under the Utilities Contracts (Scotland) Regulations 2016 for the procurement of a Design and Build Civil Engineering Contractor for the St. Ola Pier Redevelopment at Scrabster Harbour, Thurso, Scotland. Redevelopment is required to suit the proposed dredging of the inner and outer berths to accommodate cruise vessels (with direct access to quayside coaches and taxis for day-trippers) and ongoing oil/gas supply vessels (who need reliable accessible service berths with adequate loading provision for cranes and equipment). The outer berth will be dredged to -9 mCD and the inner berth to -7,5 mCD. Overall dredging is circa 150 000 m3 of mainly sands and gravels. The works required include partial demolition of the existing pier, reconstruction with marine piling, dredged/imported filling, tie rod installation, concrete deck slab and reinforced concrete capping beams as well as dredging and spoil disposal (likely to sea disposal site and partially re-used in the works). The layout of berths on the existing pier is to be altered slightly to deliver a uniform quay width of 32 m to maximise functionality and provide a straight berth alignment on each side. The pier redevelopment is circa 280 m long x 32 m wide. Land reclamation and rock armoured revetment construction are proposed towards the Queen Elizabeth (QE) Pier to support the pier development and improve queuing/access to the Orkney Ferry. This reclamation may use imported rockfill or reused dredged material. A potable water supply and a fuel supply will be re-routed from the existing Jubilee Pier in a dredged trench in the seabed to the Ice Pier and onwards around the harbour to the reconstructed St. Ola Pier.