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Groundworks and drainage packages
Chertsey projects may require the substructure, drainage, and external levels to be coordinated from the outset.
- Strip and trench-fill foundations
- Deep drainage and chambers
- Surface-water systems
- Bulk excavation and grading
- Site clearance and enabling
- Utility ducts and service trenches
Levels, groundwater, and temporary works
Deep excavations and drainage runs require a safe, site-specific approach. Ground conditions, groundwater, nearby loads, trench support, pumping, access, and backfill should be considered before work begins.
- Ground investigation information
- Temporary drainage or pumping
- Trench support planning
- Outfall and invert levels
- Foundation interfaces
- Testing and as-built records
Confirm the connection before the trench
For drainage-led work, gather the existing outfall location and measured levels alongside the proposed layout. Site-specific groundwater and drainage information may affect both the permanent design and temporary excavation arrangements. Identifying gaps before mobilisation helps prevent an open trench becoming the point where the connection is first investigated.
Information for a Chertsey quotation
The best starting point is a current drawing set, site address, access information, drainage strategy, and intended programme.
- Topographical or level survey
- Structural drawings
- Drainage layout
- Access and highway notes
- Service information
- Scope and programme