Repair Corrugations — Surface Tolerance

Road Corrugations

Road corrugations concern both the wearing material and traffic interaction. Dragging loose peaks into hollows can improve appearance temporarily while leaving the cause unchanged.

Before moving material

Assess aggregate condition, drainage and the depth of the corrugated layer.

Receiving operation and checks

Compact and manage traffic as required by the road-maintenance plan. Check that the profile and edge drainage are restored.

Persistent corrugation may need material or maintenance-method changes.

Rough Grading Correction

Rough-grade correction starts by deciding whether the mismatch is local or distributed across the whole area. A local touch-up is efficient only when the larger formation is already sound.

Before moving material

Survey enough of the area to locate the extent of error.

Receiving operation and checks

Remeasure corrected areas against unchanged reference points. Check that the repair has not moved the error into an adjacent zone.

A repeated failure may require a revised design or foundation repair.

Record the job inputs

Use this checklist to turn the scenario into a specific brief. Retain the design revision and agree who accepts each completed layer.

• Existing condition, extent and the reason for intervention
• Required finished purpose, receiving operation and acceptance criteria
• Material type, layer role, source, receiving area and volume state
• Reference levels, datum, survey method and issued design revision
• Available tractor, implement configuration, travel route and turning space
• Checks before work, stopping points and evidence retained at handover

Checklist ticks apply only while this page is open. Include the completed brief in your project records.

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