Client:
Leeward Limited
Delivery Methodology:
’Johnston’ Standard Form of Contract.
Project Overview:
This residential
land sub-division project required the construction of over a
mile of marine canals, a bridge, roadworks, utilities installations and
the dredge of a marine approach channel for the canals together with
the navigation markers required by the Turks and Caicos Island Marine
Department.
Challenges:
The project required the
excavation of 230,000 cubic yards of limestone rock of varying hardness
to form the canals. The canals were excavated to a minimum depth
of 9 feet below mean sea level. 100% of the excavtion works
were carried out under water. During the dredging operations extreme
care was taken using turbidity curtains to ensure that the dredging
operations worked within the agreed guidelines as set by the Turks and
Caicos Islands Government Departmnt of Environmental and Coastal
Resources.
Contract Value:
US $2.3m
Construction Schedule:
The commencement
date for the contract was 4 February 2002 and the contract duration was
8 months. The contract was completed one month ahead of schedule.
Estimate Methodology:
The contract was directly negotiated with the client on an open book basis.
Package Strategy:
The
excavation and dredging packages were let to specilist trade
contractors from the US. The bridge construction, utilities
installation and the slope protection works were secured with
local sub-contractors.
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