Erosion And Sediment Control Inspector Practice Solution Study Sheet Questions And Detailed Answers

EROSION AND SEDIMENT CONTROL
INSPECTOR PRACTICE SOLUTION STUDY
SHEET QUESTIONS AND DETAILED
ANSWERS

●● What is sedimentation?
Answer: The settling out of soil particles transported by water and wind.


●● How can soil erosion be classified?
Answer: As natural erosion or manmade erosion.


●● What are the two types of water erosion?
Answer: Overland erosion and channel erosion.


●● What are the four processes of overland erosion?
Answer: Splash or raindrop erosion, sheet erosion, rill erosion, gully
erosion.


●● What are the four principal factors influencing soil erosion?
Answer: Soil characteristics, vegetative cover, topography, climate.


●● What are three physical effects of erosion and sedimentation?

, Answer: Increased flooding, reduced hydraulic capacity in rivers,
increased maintenance of stormwater systems.


●● What are three biological effects of erosion and sedimentation?
Answer: Reduced light for aquatic plants, clogs fish gills, disrupts food
chain.


●● What practices should be applied to protect disturbed areas?
Answer: Erosion control practices to protect from off-site runoff and
prevent excessive on-site damage.


●● What is the importance of stabilizing disturbed areas?
Answer: To prevent raindrop impacts from causing erosion.


●● What is the rainfall erosion index?
Answer: The only factor in the Universal Soil Loss Equation beyond the
developer's control.


●● What are the soil forming factors?
Answer: Climate, topography, organisms, parent material, time.


●● What is the maximum drainage area for a silt fence under sheet flow
conditions?