Blackwater Reservoir Roof Replacement x 2

Summary and scope

Central Highlands Regional Council (CHRC) is seeking a suitably qualified Contractor to replace existing roofs at the Blackwater 9.1ML and 10ML reservoirs. The existing roofs are made of deteriorating asbestos fibre cement sheeting and the supporting galvanised steel and hardwood purlins have deteriorated significantly from corrosion. The project will include the following. • Removal and disposal of the old roof sheeting and purlins, • Construction of new raised roof structures consists of aluminium purlins, support piers and roof sheeting. • Dismantling of existing ladders and replacing with new caged ladders and associated walkways and handrailing. • Installation of new internal platforms for inspections during operation and maintenance. • Construction of new concrete footpaths to channel rainwater from the reservoir perimeter. • Check for leakages and repair of concrete joints. • Disinfection of the reservoirs prior to returning to service. The scope of work is packaged in separable portions to enable construction flexibility as follows Separable Portion 1: Removal and disposal of existing roof structure, supply and installation of a new roof to the 10ML reservoir. Separable Portion 2: Removal and disposal of existing roof structure, supply and installation of a new roof to the 9.1ML reservoir. Separable Portion 3: Removal and disposal only of existing roof structure on the 9.1ML reservoir. Note: Council reserves the right to award either portion 1 or a combination of either separable portions 1&2 or1&3 depending on budget availability.