Sydney Catchment Authority / Scour Pipeline Upgrade - Lower Cascade Dam - T02679271

The works consist of demolition and disposal, supply of all materials, labour and equipment and construction of the following infrastructure components.

·         Construction of a new reinforced concrete pit for the new DN600 scour valve including provision of access stairways, handrails and a grated cover. 

·         Demolition and disposal of a part of the existing buried concrete wall which is in the area where the new pit will be constructed.

·         Demolition and disposal of the existing brick V-Notch weir basin and construction of a new reinforced concrete V-Notch weir basin.

·         Clearing and excavation works

·         Provision of a drainage system including two drainage pits, a pipeline and a discharge outlet.

·         Removal of specified components of the existing DN600 scour valve and provision of a blank flange and sealing the existing so x sp joint inside the pit.

·         Mass concrete filling of the existing scour valve pit.

·         Turfing and site restoration

·         Other associated minor civil works for the proper completion of the works

                    ·         Leakage correction of existing valve socket  spigot    joint by caulking with lead is required.

 

·         Removal of existing DN600 valve internals and installation of a fabricated steel cover.

 

·         Installation of the DN 600 valve and dismantling  joint.

 

·         Supply of Valve spindle extension;

 

·         Supply and installation of the DN50 Gate valves.

 

·         The site testing, demonstration and commissioning and the rectification of any defects, if necessary.

 

          

 

NSW Regions: Sydney

Open Tenders - An invitation to tender by public advertisement with no restriction placed on who may tender. Tenderers will normally be required to demonstrate in their tender that they have the necessary skills, resources, experience, financial capacity, and in some cases licences, accreditations, etc., to fulfil the tender requirements.

TECHNICAL SPECIFICATION.pdf (199 KB)

The tender may be lodged either in the Tender Box, at Sydney Catchment Authority, Level 4, 2-6 Station Street, Penrith NSW 2750. or electronically through SCA online eTendering website at https://tenders.nsw.gov.au/sca