EBS 145/HYD 115: Irrigation and Drainage Systems
Winter Quarter
1999/20 Catalog Data: Biological Systems Engineering 145/Hydrologic Science 115. Irrigation and Drainage Systems. Credit 4. Lecture-4 hours. Prerequisites: ENG 103A or HYD 103. Engineering and scientific principles applied to the design of surface, sprinkle and micro irrigation systems and drainage systems within economic, biological, and environmental constraints. Interaction between irrigation and drainage will be emphasized.
Textbook: None required
Instructor: W. W. Wallender, Professor, Hydrologic Science and Biological and Agricultural Engineering
M. E. Grismer, Professor, Hydrologic Science and Biological and Agricultural Engineering
D. J. Hills, Professor of Biological and Agricultural Engineering
Grading: Homework 30%, two midterms 40%, final examination 30%
Goals: Develop the ability to design and analyze irrigation and drainage systems within economic, biological, and environmental constraints. Interaction between irrigation and drainage will be emphasized.
Computer Usage: Multiple outlet hydraulics and overland flow programs.
Prerequisites by Topic: Elementary fluid mechanics
Topics:
1. Soil, water and plant biology principles and interactions.
2. Characteristics of surface, sprinkle and trickle irrigation systems and drainage systems.
3. Relationships between irrigation and drainage.
4. System performance criteria and economics via plant response to irrigation and drainage.
5. Drainage systems: water flow in soils, canal and impoundment seepage, relief drainage, falling water table design, wells for drainage.
6. Surface irrigation: definition of terms, hydraulics of overland flow, design of border, furrow and level basin systems.
7. Closed conduit hydraulics: emitters, sprayers and sprinklers, multiple outlet laterals, mainlines, matching pumps to systems.
8. Sprinkle systems: periodic move layout and design, travelers, center-pivot, linear move.
9. Micro systems: drip, bubblers, sprayers.
10. Management of irrigation and drainage systems.
Estimated ABET Category Content:
Engineering Science: 1 unit
Engineering Design: 3 units
Engineering Design: This course has a significant design component. Students design sprinkle, trickle and surface irrigation systems. The design is for optimal returns to water within environmental constraints. Similarly drainage design focuses the size and spacing of drainage lines as well as drainage wells for economic productivity including salt control. Recently drainage wells have become economic and their design and installation is also taught.
Prepared by: W. W. Wallender, M. E. Grismer, D. J. Hills Date: January 10, 2000