Managing Infrastructure Affected by Rivers

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The effective maintenance of a roading network is very dependent on managing the risks associated with erosion and inundation from rivers and streams. This workshop will provide an overview of river and stream processes, hydrological and hydraulic analysis tools, risk management techniques and an outline of protection options


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1 day course.

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Kyle Christensen

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$695 + GST per person

(Minimum numbers are required before a course is be confirmed)

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Topics include

River Processes:

  • Form and function of rivers
  • Estimating future behaviour
  • Hydrology including description of methods
  • Hydraulics including outline of different tools available

Risk Management Techniques:

  • General risk management principles
  • Scour risk assessment framework for prioritising bridges
  • Erosion risk assessment for roads adjacent to rivers
  • Flooding and erosion risk assessment for culverts

Protection Options:

  • Outline of river and bridge protection options including rip-rap, sheetpiles, groynes, trees and geosynthetics
  • Outline of culvert protection options including stilling basins and secondary overflow paths
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On completion of this course participants will

  • Have a broad understanding of river processes and how they affect and are affected by roading infrastructure
  • Awareness of the types of information that can assist with predicting future river behaviour
  • Understand the range of hydrological and hydraulic analysis tools available and when to use them
  • Understand how to effectively prioritise works based on risk management principles
  • Be aware of the different types of river, bridge and culvert protection
  • Detect potential instances of bridge failure
  • Learn ways to enhance durability of materials used in bridge construction
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Who should attend

Local Authority engineers, contractors and roading managers responsible for managing risks to bridges, culverts and roadways from rivers and streams.

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Presenter information

Kyle Christensen MBA ME BE (Hons) CPEng MIPENZ IntPE(NZ) is the Water and Environment Leader (NZ) at Cardno where he specialises in Water Resources Engineering along with managing a multidisciplinary team of engineers, ecologists and landscape architects.  Kyle has a Master of Engineering specialising in the interaction of engineering infrastructure and geomorphology in fluvial and coastal environments and is currently the chairman of the IPENZ/WaterNZ Rivers Group. Kyle has over 15 years’ experience in analysing river and stormwater systems and developing engineering solutions to solve erosion and flooding issues. He has worked on waterway infrastructure design projects in the UK, Republic of Ireland, Middle East, South America, Australia and throughout NZ and has recently undertaken assessments and initial design of mitigation options for the widespread flooding that occurred across the Wellington Region.

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