Planning and Design of Drainage Systems (Modified)

Name: Planning and Design of Drainage Systems (Modified)
Rating: 4.4 (23 reviews)

Drainage engineering concepts

Created byWalaa Elnashar

Last updated 6/2026

English

English [Auto],

What you'll learn

Identify of drainage definition.
Learn about major roles of land drainage.
Identify of adverse effects of excess water.
Identify of definition, problems, causes and control of waterlogging.
Identify of major drainage criteria as agricultural, technical, environmental and economical drainage criteria.
Learn about main components of a drainage system.
Identify of types of drainage systems.
Identify of surface drainage definition
Learn about the negative effects of poor surface drainage system.
Learn about the advantages of sub- surface drainage.
Identify of classes of soil water and soil moisture content.
How to determine the soil properties.
Learn about flow through porous media.
How to measure of hydraulic conductivity.
How to make an alignment of the whole drainage system.
How to calculate drain spacing for steady state flow.
How to calculate drain spacing for unsteady state flow.
Learn about the interceptor drains.
How to determine the interceptor drains location.
How to make a lay-out of sub-surface drainage system.
How to make a hydraulic design of open drainage system.
How to design an open cross section using Manning equation.
Learn about the main elements must be determined for subsurface drainage system.
Identify of design criteria for subsurface drainage system
How to make a hydraulic design of open drainage system.
How to design an open cross section using Manning equation.
Learn about the main elements must be determined for subsurface drainage system.
Identify of design criteria for subsurface drainage system.
Use Wesseling and Manning equations to design pipe for uniform flow.
Use Wesseling and Manning equations to design pipe for nonuniform flow.
How design the drainpipe line with increasing diameter.
Learn about the materials for subsurface drainage.
How to select of drain-pipe
Identify of pipe envelop and its hydraulic function.
How to select an envelope.
Learn about the structures in pipe drain system.
Identify of salinity definition, problems and causes of soil salinity.
Identify of classification of salt affected soils.
Learn about the general principle of reclaiming saline soils.
Learn about salt concentration and salt balance equation.
How to determine leaching requirement.
How to determine the drainage coefficient (q).
Identify of reclamation of saline non-sodic soils.
Identify of reclamation of saline sodic soils
Identify of reclamation of non-saline sodic soils.

Course content

5 sections • 17 lectures • 3h 13m total length

Welcome Lecture8:13
Explore the planning and design of drainage systems, from identifying drainage and waterlogging issues to hydraulic design of open and subsurface drainage, with solved examples across five sections.
Lecture 17:01
Explore land drainage, including surface and subsurface techniques, to prevent waterlogging and soil salinity while outlining drainage criteria, components, and management strategies.
Quiz 1

Lecture 26:47
Introduce surface drainage concepts and the two main types—surface (open) drainage and subsurface tile or covered drainage—then compare subsurface options such as tube wall, open, and mole drains.
Lecture 312:36
Explore flow through porous media and soil water classes, define saturation, field capacity, permanent wilting point, and available moisture, and explain porosity, density, specific yield, and specific retention.
Quiz 2
Lecture 412:54
Explore flow through porous media in drainage systems, including drainable porosity, porosity, void ratio, degree of saturation, and hydraulic conductivity, with constant-head tests and tracer travel experiments.
Quiz 3

Lecture 59:35
Explore subsurface drainage spacing design, including drain spacing, depth, water levels, outlet elevations, and open drainage parameters, and study steady-state groundwater flow equations: Donnan ellipse, Ernest, and Kirkham.
Lecture 613:51
Explore drainage system design by applying glover and lubriderm equations to calculate tile drain spacing, water-table depths, and seepage around canals and interceptor drains.
Lecture 717:51

Lecture 813:22
Design open drainage systems with trapezoidal channels using Manning's equation to relate discharge, cross section, and slope. Include rainfall duty, seepage, evaporation, freeboard, and side slopes.
Lecture 99:31
Design subsurface drainage by laying out laterals and collectors to match topography, and determine spacing, depth, and pipe sizes using Hooghoudt-based equations for uniform and non-uniform flow.
Lecture 1015:00
Explore solved examples of drainage design for lateral drains using cement and corrugated PVC pipes, calculating maximum length and drainage rate under varying spacings and slopes.
Lecture 1112:41
Design and analyze cement collectors and tile drainage layouts by solving examples, calculating drainage area, pipe sizes and spacings, and determining maximum lengths with safety factors and conductivity data.
Quiz 4
Lecture 1211:42
Explore subsurface drainage materials—clay tile, concrete, and plastic pipes—and envelope design criteria, including gravel and synthetic filters, for cost- and soil-based selection.
Lecture 136:19
Mark start and end points of drain lines with stakes, set depth and grade, and install via trench, hand excavation, or direct placement, including outlets, junctions, and surface inlets.

Lecture 148:02
Define soil salinity and classify salt-affected soils by salinity, ESP, and pH. Explain causes, common ions, and measurement in ppm or millimoles per centimeter.
Lecture 156:45
Reclaim sodic and saline soils by leaching salts from the root zone with low-salinity water, replacing sodium with calcium and applying gypsum when needed to maintain structure.
Lecture 1620:58
Explore drainage design through practical calculations of salt accumulation, leaching requirements, drainage rate, and water-table rise using irrigation and drainage water salinity and the Howard equation.
Quiz 5

Requirements

BASICS OF CIVIL ENGINEERING
BASICS OF GROUNDWATER HYDROLOGY
BASICS OF HYDRAULICS

Description

This course is structured into five sections with 16 lectures, each covering a specific topic related to drainage engineering.

The sections are as follows:

Section 1: Introduction

In this section, you will identify the main objectives and the structure of “Planning and Design of Drainage Systems” course. You will identify of drainage definition, major roles of land drainage, waterlogging definition, problems, causes and control.

Section 2: Master Plan and General Layout

In this section, you will learn about main components of a drainage system, identify of surface drainage definition, learn about the negative effects of poor surface drainage system, identify of classes of soil water and soil moisture content, how to determine the soil properties and how to measure of hydraulic conductivity.

Section 3: Design of drainage systems Spacing

In this section, you will learn how to calculate drain spacing for steady state and unsteady state flow. You will learn about the interceptor drains and how to determine the interceptor drains location.

Section 4: Hydraulic Design of Drainage Systems

In this section, you will learn about how to make a hydraulic design of open drainage system, how to design an open cross section using Manning equation. You will learn about the main elements must be determined for subsurface drainage system.

You will learn how to use Wesseling and Manning equations to design pipe for uniform and nonuniform flow, how to design the drainpipe line with increasing diameter. Learn about the materials for subsurface drainage, how to select of drainpipe and select an envelope and learn about the structures in pipe drain system.

Section 5: Soil Salinity and Land Reclamation

In this section, you will identify of salinity definition, problems and causes of soil salinity, identify of classification of salt affected soils. Learn about salt concentration and salt balance equation, how to determine leaching requirement and the drainage coefficient (q), Learn about the general principle of reclaiming saline soils.

Who this course is for:

• Civil engineering students
• All personal involved in water engineering

Planning and Design of Drainage Systems (Modified)

What you'll learn

Explore related topics

Course content

Introduction2 lectures • 15min

Master Plan and General Layout3 lectures • 32min

Design of drainage systems Spacing3 lectures • 41min

Hydraulic Design of Drainage Systems6 lectures • 1hr 9min

Soil Salinity and Land Reclamation3 lectures • 36min

Requirements

Description

Who this course is for: