Managing Flooding and Scour Risks at Bridges and Culverts

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Overview

The effective management of the risks associated with scour and flooding is vitally important for the protection of key infrastructure.

This course will provide an overview of river and stream processes, hydrological and hydraulic analysis tools, calculation of scour at bridges and culverts, design of scour countermeasures at bridges and culverts including geosynthetic solutions and the detailed design of rock rip-rap.

 

Click here to register your interest for this course and we will contact you when we get a course running in your area.

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Length

1 day course.

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Facilitator

Kyle Christensen

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Cost

$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
  • Introduction to sediment transport

 

Scour Calculations:

  • Outline of methods for calculating general scour, contraction scour and local scour at bridges


Bridge and Culvert Countermeasures:

  • Solutions for lateral erosion, degradation, aggradation and local scour
  • Outlet protection, inlet protection and fish passage at culverts
  • Use of geosynthetic reinforced slopes and walls


Detailed Design of Rock Rip-Rap:

  • Correct sizing of rock
  • Specification of rock grading, thickness and quality
  • Geotextile and granular filters
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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 adjacent 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
  • Calculate general, contraction and local scour at bridges
  • Design scour countermeasures at bridges and culverts
  • Detailed design of rock rip-rap for groynes and revetments
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Who should attend

Engineers, planners, scientists, contractors and others responsible for managing flooding and erosion risks at bridges and culverts and road embankments adjacent to rivers

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Presenter information

Kyle Christensen MBA, ME, BE (Hons), CPEng, CMEngNZ, IntPE, is an independent consultant specialising in the management of flooding and erosion risks.  Kyle has a Master of Engineering specialising in the interaction of engineering infrastructure and geomorphology in fluvial and coastal environments and is the past chairman of the Engineering NZ/WaterNZ Rivers Group. Kyle has over 18 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 the review of the management of the Rangitaiki River in response to the failure of the floodwall at Edgecumbe. 

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