Flagstone Estate is a new Master Plan community located in Flagstone, Queensland (Logan).
The site master plan encompasses 12,000 residential lots and includes 126ha of commercial precincts.
The development forms part of the Greater Flagstone Priority Development Area (State PDA). At completion is predicted to be home to more than 30,000 people by 2043.
1,138 Lots have been completed and handed over to date. 214 Lots are under construction (in various phases).
Project Scope
Clearing and grubbing works.
Over 1,690,000m3 of bulk earthworks and remove and replace of rock to 500mm below FSL.
Excavation and blasting (268,900m3) through hard rock material
Export 110,336m3 of surplus fill material off-site.
23,400m of gravity sewer reticulation installed including associated sewer structures.
19,5500m of stormwater drainage up to 1800mm diameter and including associated drainage structures.
18,710m of potable water reticulation installed including associated sewer structures.
21,240m2 of Coloured Concrete Sleeper Walls including Two Tier Walls up to 3m high.
1,166m2 of A-Grade Boulder retaining walls.
129,000m2 of internal asphalt road network including shared user path to connect into a community-wide active transport system.
Multiple intersections and roundabouts.
36,520m2 of concrete footpaths and driveways.
Construction of multiple bio basins.
Construction of gabions and rock mattress stormwater outlets.
Electrical, communication, gas and landscaping management.
All works and connections to Logan City Council Standards and Specifications.
Key Construction Elements
A rollout of consecutive stages has ensured that SEE Civil has maintained sufficient resources to ensure ongoing delivery on multiple fronts of work.
Extremely hard sandstone ground conditions have meant that any construction below the natural surface has needed alternate construction methods including blasting, trenching, and profiling.
Project Outcomes & Milestones
The project has so far delivered 1,138 affordable housing sites in the growing Flagstone community. Whilst another 214 housing sites are under construction.
Trunk sewerage infrastructure has been installed, joining the existing network system to service Flagstone, Greenbank, and Cedar Grove.
Collaboration with both the client and Logan Water to facilitate works and safe access through a live construction site led to the best project outcomes and carried success for further packages of work.
Works were undertaken to facilitate the opening of Flagstone Trades College, which provides training and skill development for people in the construction industry, leaving a positive economic and socioeconomic legacy for the region long after construction program completion.
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