Civil construction and tunnelling company Rob Carr was awarded the infill sewerage project works in Dawesville reticulation areas 1B, 4A, 5A south of Mandurah, Western Australia.
Works will involve construction of gravity sewers, pumping stations and pressure mains for Reticulation Areas Dawesville 1B, 4A and 5A.
The project will consist of a combination of tunnelling and open trenching works, including pilot soil displacement, slurry microtunnelling and directional drilling, along roads, verges and private properties.
The work involves the construction of approximately 12,950 m of 150, 255 and 300 mm gravity mains, 1,560 m of 100 and 150 mm sewer pressure mains and providing service connections to 416 lots. Other works also include the construction of 62 manholes, 131 maintenance shafts as well as the construction of two new wastewater pump stations, with an access road and additional infrastructure.