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Rock RipRap Structures ~ VTC Technical Training Workshop Introduction. Jon Fripp NDCSMC Ft. Worth, TX.

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rock riprap structures vtc technical training workshop introduction

Rock RipRap Structures~ VTC Technical Training WorkshopIntroduction

Jon FrippNDCSMCFt. Worth, TX

slide2

Workshop Goal: The focus of this half day VTC workshop is on designing and constructing rock riprap structures. The target audience is NRCS engineers and technicians. The learning is through a combination of lecture and example calculations. Participants will be provided hand out materials in electronic form that they should print and reference prior to the workshop.

module topics
Module Topics
  • Issues with Hard Structures
  • Overview of Hard Stream Stabilization Structures
  • Sizing Rock
  • Filters Bedding and Geotextiles
  • Scour
  • Grade Control
  • Construction
  • Rock Sizing Software

maybe

what will not be covered in this workshop but is also important
What will not be covered in this workshop but is also important
  • Geotechnical stability
  • Permits
  • Environmental Issues
slide5

Q: Why do we care? A:Erosion

Nutrient cycling

Habitat

Natural Process

Damage to Property

Water Quality Issues

Habitat

slide6

Rock Protection

Aesthetics

Habitat

Security

Stability

slide7

Flexibility in Projects

Do we want a project that adjusts or one that is static?

Aesthetics

Habitat

Protection of Property

Stability

slide8

Geomorphic vs. Engineering Stability

Engineering Stability – a river that is static in terms of position, section, slope and planform

Geomorphic Stability – a river that maintain same general cross section dimensions while adjusting its position across the floodplain. Width depth, and slope adjust over time so there is no net aggradation or degradation. Synonymous with dynamic equilibrium

Life/Property Issues

Ecology Issues

jig saw effect
Jig Saw Effect

Be sure you understand the pieces before putting them together

introductions
Introductions
  • Introduce yourself
  • Describe your technical background
  • Describe the watershed that you are working in
  • Describe your projects
  • Describe what you hope to get out of this workshop