School of Engineering and Technology, (SET)
 
CE74.21 : Irrigation and Drainage Engineering  3(2-3)
 
Course objectives:

The objective of this course is to develop in-depth understanding of concepts and theories of irrigation and drainage engineering, apply them in planning, design and implementation of projects, and acquire knowledge of contemporary research issues.
 
Learning Outcomes:
The students on completion of this course would be able to:
  • Comprehend concepts related to soil water movement, crop/irrigation water requirements and irrigation schedules for efficient irrigation water management;
  • Plan and design various types of irrigation systems at farm level;
  • Plan and design drainage systems and structures with an understanding of land grading; and
  • Apply modeling tools for planning and design of irrigation and drainage projects
 
Pre-requisite(s):

None.
 
Course Outline:
I.          Basic Soil-Water Physics
1.     Physical properties of soils and water
2.     Statics of soil water
3.     Dynamics of water in saturated and unsaturated soils

II.         Irrigation Development Planning

1.     Factors affecting irrigation planning and development
2.     Water sources for irrigation – quantity and quality
3.     Irrigation methods selection
4.     Soil-water-plant-atmosphere relationships
5.     Modeling crop/irrigation water demands (CROPWAT)
6.     Irrigation/drainage planning and project formulation

III.        Irrigation Network and Hydraulics

  1.     Irrigation systems components
2.     Diversion, conveyance and distribution systems
3.     Canal best hydraulics sections and design

IV.       Design of Irrigation Systems
1.     Design and evaluation of surface irrigation systems
2.     Land grading and earthwork calculations
3.     Sprinkler irrigation system design and evaluation
4.     Drip irrigation system design and evaluation
           
V.        Drainage of Agricultural Lands

  1.     Drainage surveys/investigations
2.     Drainage criteria
3.     Design discharges
4.     Steady and non-steady flow to drains

VI.       Design of Surface/Subsurface Drainage Systems

  1.     Design of surface drainage systems
2.     Design of subsurface drainage systems

VII.      Irrigation and Drainage Structures

   1.     Flow measuring devices (flumes, weirs)
2.     Pumps for irrigation and drainage
 
Laboratory Sessions:
1.      Determination of soil bulk density and particle size distribution
2.      Soil moisture measurement techniques
3.      Soil water balance calculations
4.      Water quality measurement techniques
5.      Modeling crop/irrigation water demand using CROPWAT
6.      Estimation of head loss in water pipes
7.       Irrigation pumps – Study, design and selection
 
Learning Resources:

Textbook:

No designated textbook, but class notes and handouts will be provided.
 
Reference Books:

1.     Laycock, A. (2011): Irrigation Systems: Design, Planning and Construction, Centre for Agriculture and Biosciences International (CABI), Wallingford, UK.
2.     Michael, A. M. (2009): Irrigation: Theory and Practice, Vikas Publishing House Pvt. Limited, New Delhi, India. 3.     Walker, W.R. and Skogerboe, G.V. (1987). Surface Irrigation – Theory and Practice, Prentice Hall, Englewood Cliffs, NJ, USA.
 
Journals and Magazines:

1.     Agricultural Water Management, Elsevier
2.     Soil Science Society of America Journal, Alliance of Crop, Soil and Environmental Science Societies (ACSESS) 3.     Journal of Irrigation and Drainage Engineering, American Society of Civil Engineering (ASCE)
4.     Transactions of American Society of Agricultural Engineers, ASAE: Soil and Water Section
5.     Irrigation and Drainage: the journal of the International Commission on Irrigation and Drainage, John Wiley & Sons
 
Time Distribution and Study Load:
Classroom lectures
30h
Laboratory
45h
Field visits
5h
Self-study (incl. assignments)
90h
 
Teaching and Learning Methods:
Teaching and learning methods include classroom Lectures, field visits to irrigation facilities and structures (weirs, pumps, reservoir), laboratory sessions and assignments.
 
Evaluation Scheme:

The final grade is computed according to the following weight distribution: Mid-term Exam (35%), Final exams (45%), Laboratory exercises (5%), Assignments (5%), and project reports (10%). Both exams are open book.

An “A” will be awarded if a student is able to show exemplary understanding of design of the irrigation and drainage systems, and is adequately able to apply the knowledge gained to real problems. A student who is participating and contributing actively in class discussions and assignments would be placed in this category. A “B” will be awarded if a student is able to show satisfactory command over the subject matter and shows an overall understanding of all given topics. A “C” will be given if a student is able to show satisfactory command over the subject matter. A “D” will be given if a student displays very limited knowledge of the subject matter, and does not appear motivated to learn new things.

 
Instructor(s):
SECTION NAME