ABSTRACT
Notee This section envisages the following types of structure Which may be required to be designed by the Contractor based on stipulated performance criteria:
[] Buried structures [] Earth retaining structures [] EnvirorvnentaJ barriers [] Underbridges up to 8 m span [] Footbridges [] Piped culverts [] Box culverts [] DraInage exceeding 900 mm dlamel8r [] Other structures
Naturally. this work cannot be catered for directly in this section and will require the preparation of a sketch solution and approximate quantities 10 allow pricing using the various other Unit Costs sections as wall as the Approximate EstImates section. An allowance must be added to such an estimate to cover the Contractor's design fae(s) and expenses.
