Formation
Soft areas, roots and old fill may need more work than a uniform excavation depth suggests.
Groundworks
Groundworks for driveways
The surface of a driveway lasts only as well as the formation, sub-base, edge restraint and drainage beneath it.
Photos, drawings or a short description can help explain the current condition.
Groundworks · Groundworks for driveways
Start below the finished surface
Vehicle loading and repeated wetting expose shortcuts below the finish. Excavation depth, weak spots, compaction and water management should be agreed for the chosen surface.
Ground, access and water
Sub-base
Material type, layer thickness and compaction method should support the expected vehicles and surface system.
Falls and edges
Water must be directed appropriately, while edge restraints prevent lateral movement of the finished driveway.
What to mention
What Flyson needs to understand about the ground
- Describe what is already known about formation.
- Explain the priority or constraint around sub-base.
- Include enough context to discuss falls and edges without assuming a product or method before the property is understood.
Questions specific to groundworks for driveways
Can a new driveway go over the old one?
Sometimes existing layers can contribute, but only after their depth, condition and drainage are assessed. Covering failure usually preserves the failure.
Why do driveways sink?
Common contributors include weak formation, insufficient or poorly compacted sub-base, failed edges, leaking services and water movement.
When is drainage installed?
Drainage levels and outlets should be established during groundworks, before the surface locks in the final falls.
Continue exploring groundworks
Groundworks for extensions
Extension groundworks connect the proposed building to real ground, existing drainage and the levels of the house and garden.
Explore groundworks for extensionsDrainage groundworks
Drainage work is about levels, capacity, access for maintenance and a lawful destination for water or waste.
Explore drainage groundworksExcavation
Excavation work needs a defined depth, safe method, material plan and understanding of what may lie below the surface.
Explore excavationRelated work
View extensionsExtensions
Extension setting-out, foundations, drainage and finished floor levels begin in the ground.
Related work
View drivewaysDriveways
Formation, sub-base and drainage determine how a driveway performs below its surface.
Project enquiry
Ask about groundworks for driveways.
Explain what the ground must support and any known access, level, drainage or excavation constraints.