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Erosion and sediment control guidelines for state highway infrastructure

The guidelines have been developed to assist roading practitioners with the selection and design of erosion and sediment control practices.

The guidelines demonstrate our commitment to lowering environmental impacts, social and environmental responsibility, and improving the contributions of state highways to the wellbeing of New Zealand.

The inspection forms are designed to provide guidance on how to implement erosion and sediment control practices on the ground.

The guideline covers:

  • promotion and use of appropriate design methods
  • development and application of practices that minimise the risk of erosion and sediment deposition Implementation of erosion and sediment control measures
  • identification of risk and problem areas
  • use of best-practice methods unique to each situation to ensure effectiveness
  • early identification of new projects that have a higher risk of erosion Support for new techniques and methodologies
  • consultation with local authorities, and
  • protection of sensitive receiving environments.

Erosion and sediment control

TitleDate
Erosion and Sediment Control Guidelines for State Highway Infrastructure [PDF, 12 MB] (PDF 12.6MB) September 2014
Inspection form - Benched Slope [DOCX, 251 KB] (Docx, 257KB) July 2014
Inspection form - Check Dams [DOCX, 280 KB] (Docx, 286KB) July 2014
Inspection form - Contour drains and diversions [DOCX, 723 KB] (Docx, 741KB) July 2014
Inspection form - Decanting earth bund [DOCX, 374 KB] (Docx, 383KB) July 2014
Inspection form - Dewatering [DOCX, 791 KB] (Docx, 810KB) July 2014
Inspection form - Dust Suppression [DOCX, 645 KB] (Docx, 660KB) July 2014
Inspection form - Flocculation [DOCX, 317 KB] (Docx, 325KB) July 2014
Inspection form - Geotextiles [DOCX, 1.4 MB] (Docx, 1MB) July 2014
Inspection form - Hydroseeding [DOCX, 691 KB] (Docx, 708KB) July 2014
Inspection form - Mulching [DOCX, 726 KB] (Docx, 267KB) July 2014
Inspection form - Pipe drop structure [DOCX, 261 KB] (Docx, 267KB) July 2014
Inspection form - Sediment retention ponds [DOCX, 356 KB] (Docx, 365KB) July 2014
Inspection form - Silt fence [DOCX, 326 KB] (Docx, 334KB) July 2014
Inspection form - Stabilised entranceway [DOCX, 1.3 MB] (Docx, 305KB) July 2014
Inspection form - Stormwater inlet protection [DOCX, 298 KB] (Docx, 1MB) July 2014
Inspection form - Super silt fence [DOCX, 310 KB] (Docx, 317KB) July 2014
Inspection form - Surface roughening [DOCX, 1.8 MB] (Docx, 3MB) July 2014
Inspection form - Top soiling and grass seeding [DOCX, 636 KB] (Docx, 651KB) July 2014
Inspection form - Turf [DOCX, 855 KB] (Docx, 876KB) July 2014
Pre-construction meeting checklist [DOCX, 213 KB] (Docx, 213KB) July 2014