Scrabster Harbor Trust has launched a tender process for the Design and Build Civil Engineering Contract, aimed to redevelop the St. Ola Pier in Thurso, Scotland.
According to the official announcement, 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 -9mCD and the inner berth to -7.5mCD. Overall dredging is circa 150,000m³ 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.
The layout of berths on the existing pier is to be altered slightly to deliver a uniform quay width of 32m to maximize functionality and provide a straight berth alignment on each side. The pier redevelopment is circa 280m long x 32m wide.
Land reclamation and rock armored 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.
According to the announcement, 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 harbor to the reconstructed St. Ola Pier.