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Success story

Mangarara Erosion Control and Silt Retention

Client

Mangarara Catchment Group (Tukituki Land Care)

Experts

Matt Highway (Element Environmental)

Due to the effects of Cyclone Gabrielle in 2023, the stream bed level of Mangarara Stream has lifted 60cm in places. This has increased silt issues and caused a significant loss of topsoil.

In response, the Mangarara Catchment Group requested expert support to help increase their knowledge and capability in developing an erosion control and silt retention plan. The group wanted expert guidance in developing managment strategies that they could implement as part of recovery works from the cyclone event to mitigate the sedimentation.

Through A2E, Matt Highway (Element Environmental) provided their expert support. Matt undertook a site walkover with Mangarara Catchment Group representatives; this identified priority sites along the stream that require erosion and silt retention interventions. Matt also gave expert gudiance for the group, helping them produce a management plan for implementation, in addition to a meeting to discuss recommendations for mitigation.

With A2E’s support, Mangarara Catchment Group have been empowered to start making decisions about how to best manage areas of Mangarara Stream affected by erosion. The plan, which collates a variety of information and resources into one document, makes it easier for farmers within the catchment to access and apply report findings.

In this section

  • Success stories
    • Iwi and hapū
      • Te Tauihu Wānanga Series
      • Otago Runaka Capability Development
      • Whakarongo ki te wai o Waitaha
      • Maniapoto Cultural Assessment Framework Wānanga
      • Water and Sediment Source Mapping for the Waipaoa Catchment
    • Regional councils
      • Horizons Regional Council Workshop
      • Periphyton in the Tairāwhiti Region
      • Mitigating E. coli in Taranaki and Manawatū-Whanganui
      • Reviewing Nutrient Limit Setting and Lakes Management Plan in the West Coast
      • Supporting Taranaki Regional Council with Ecosystem Metabolism Application 
      • Overseer Use in Rotorua Lakes
      • Biophysical Risk Mapping
    • Catchment groups
      • Hauarahi Stream
      • Phosphorus in Volcanic Hill Country
      • Piakoiti and Piakonui Stream Action Plan Advice
      • Erosion and Sediment Control in Matakana
      • Phosphorus Limit Setting in Barkers Creek
      • From Mountains to Sea - Freshwater Wānanga Planning 2024
      • Mangarara Erosion Control and Silt Retention
      • Nitrate Hotspot Management in South Canterbury: Clandeboye and Seadown
      • Review and Mitigation Guidance - Willow Removal at Poolburn Gorge
      • Managing cow cress/water celery and bank erosion in the Kahahakuri Stream
      • Water and Sediment Source Mapping for the Waipaoa Catchment
      • Water Quality Monitoring for Ashburton Forks Catchment Group
      • Kaipātiki Project Champions Kākahi Conservation
      • Biodiversity Asset Mapping of Bream Bay
      • Upper Taieri Wai - Water Quality Interpretation
Ministry for the Environment
Beca
NZ Landcare Trust
Access to Experts is a service provided on behalf of the Ministry for the Environment by Beca and NZ Landcare Trust, alongside our key collaborators.

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Phone: 0800 MFE A2E (0800 633 223)
  • Home
  • Request for support
  • Join the expert panel
  • Success stories
    • Iwi and hapū
      • Te Tauihu Wānanga Series
      • Otago Runaka Capability Development
      • Whakarongo ki te wai o Waitaha
      • Maniapoto Cultural Assessment Framework Wānanga
      • Water and Sediment Source Mapping for the Waipaoa Catchment
    • Regional councils
      • Horizons Regional Council Workshop
      • Periphyton in the Tairāwhiti Region
      • Mitigating E. coli in Taranaki and Manawatū-Whanganui
      • Reviewing Nutrient Limit Setting and Lakes Management Plan in the West Coast
      • Supporting Taranaki Regional Council with Ecosystem Metabolism Application 
      • Overseer Use in Rotorua Lakes
      • Biophysical Risk Mapping
    • Catchment groups
      • Hauarahi Stream
      • Phosphorus in Volcanic Hill Country
      • Piakoiti and Piakonui Stream Action Plan Advice
      • Erosion and Sediment Control in Matakana
      • Phosphorus Limit Setting in Barkers Creek
      • From Mountains to Sea - Freshwater Wānanga Planning 2024
      • Mangarara Erosion Control and Silt Retention
      • Nitrate Hotspot Management in South Canterbury: Clandeboye and Seadown
      • Review and Mitigation Guidance - Willow Removal at Poolburn Gorge
      • Managing cow cress/water celery and bank erosion in the Kahahakuri Stream
      • Water Quality Monitoring for Ashburton Forks Catchment Group
      • Kaipātiki Project Champions Kākahi Conservation
      • Biodiversity Asset Mapping of Bream Bay
      • Upper Taieri Wai - Water Quality Interpretation
  • FAQs
  • Freshwater Knowledge Hub
  • Meet the team
  • Our collaborators
  • Case tracker
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