Accelerated erosion is often caused by clearance of woody vegetation and earthworks. Earthworks related to urban expansion, stream works and road works have the potential to damage water bodies if sediment from the work site is poorly managed. Sediment can damage our waterways’ ecology by:
Erosion and sediment control guidelines
This document sets the minimum standard for designing an erosion and sediment control plan as part of resource consent and permitted activities for earthwork sites.
Erosion and sediment control plan
This document can assist contractors and consultants in preparing an erosion and sediment control plan for a site that recognises unique characteristics.
These factsheets can assist contractors and consultants to ensure sediment retention devices are designed and sized correctly. Some include best practice updates which improve device performance. We encourage contractors and consultants implement these updates in best practice when preparing and implementing an erosion and sediment control plan.
Decanting earth bund factsheet
Working with concrete or asphalt factsheet
Sediment retention pond factsheet
Silt fence factsheet
Stabilised construction entrance factsheet
Silt filter log factsheet
Catch pit protection factsheet
Winter works application
Most resource consents will require works to stop between 30 April and 30 September, unless written approval is obtained. A guideline has been produced to assist you with making your application to continue works through the winter works shut down period.
Pre-construction checklist
Most resource consents will require a pre-construction meeting with relevant parties involved in a project. This checklist is to assist you with topics to discuss and agree upon with Horizons staff members prior to commencing works.
Most resource consents will require erosion and sediment control structures to have as-builts completed, and to be certified that they have been constructed in accordance with the approved Erosion and Sediment Plan. These sheets are to assist you with the information required for the as-built certifications and can be downloaded by clicking on them.
Sediment retention pond as-built form
Decanting earth bund as-built form
Silt fence as-built form
Diversion channel or diversion bund