Week 7: Flows, Volumes and Infiltration

Question 1

What are some factors influencing flow and volume?

Answer 1

• Climate/location
• Topography and geology
• Landuse

Question 2

Outline the CCC Rational Method Flow Estimation Method.

Answer 2

1. Determine time of travel
2. Determine time of entry and time of concentration
3. Using time of concentration as storm duration, determine intensity for design
4. Determine area of catchment
5. Determine Rational coefficient for catchment
6. Calculate the peak flow expected from the catchment