Coalseam Way - Sewer
We were engaged by Direct Contracting to install 350 meters of main sewer along Coalseam Way. The scope included deep excavation, compaction, de-watering, pipe installation and final testing within a tight project time frame.
Project planning
The project plan included site assessment and mobilization, followed by deep excavation, dewatering, pipe installation over nine days, and final testing and restoration within a 11-day schedule.
Excavation work
Excavation work involved safely digging to the required depth while implementing shoring and de-watering to ensure trench stability and a dry working environment.
Quality Assurance
Ensuring all materials and installations met design specifications and passed rigorous testing under water corp supervision.
De-watering Solutions
De-watering was achieved through temporary sump pumps and drainage systems to control water inflow and ensure safe trench conditions.
Challenges
Environmental Concerns
Implement environmental protection plans including sediment control, proper disposal of contaminated water, and erosion prevention measures.
Heritage
Assessments and collaborate closely with heritage consultants and local authorities to ensure all works comply with preservation guidelines to the protected sites.
Adverse Weather Conditions
Implement weather contingency plans, use protective coverings and schedule critical activities during favorable conditions.
High Tide
Schedule work during low tide windows, install temporary barriers or cofferdams, and monitor tidal forecasts closely to minimize disruptions.