Compute design rainfall, calculate runoff and stormwater flows; design storm sewer systems and detention storage structures. Detention storage structures and storm sewer systems are used to store and transport rainfall-runoff through open ditched and underground pipes.
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In this course, we will:
- Learn about spatial distribution of rainfall, perform statistical analysis, fit different distributions to the data, and calculate design rainfall.
- Learn to estimate runoff using the rational method and time of concentration, and use the SCS-CN method to determine the time distribution of runoff. Unit hydrograph theory and computation of storm hydrographs will be covered.
- Use regulations to design storm sewer systems using EPA-SWMM.
- Compute storage volumes for detention storage structures.
What you'll learn
- Determine design rainfall and calculate runoff using rational method, SCS curve number method and unit hydrograph theory.
- Calculate stormwater flows.
- Analyze and design storm sewer systems and detention storage volumes by rational method.
- Identify, formulate, and solve complex engineering problems.
Syllabus
Week 1: Rainfall temporal and spatial variation, design rainfall and hydrologic risk
Week 2: Runoff using Rational Method, storm sewer design
Week 3: Detention storage design, SCS CN method
Week 4: Hydrographs, SCS triangular and curvilinear unit hydrographs
Week 5: Superposition, computing runoff hydrographs from unit hydrograph theory
Prerequisites
- An undergraduate course in hydraulics or fluid mechanics
- CE59700.1 Analysis and Design of Water Distribution Systems and CE59700.2 Design of Sanitary Sewer Systems would be highly desirable.
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