TITLE:
Design of Jigessa Small Scale Irrigation in Dara Woreda, Southern Ethiopia
AUTHORS:
Hailemariam Doko, Ermias Birhane, Mihret Ulsido
KEYWORDS:
Small Scale Irrigation, Peak Flood, Agronomy
JOURNAL NAME:
Open Access Library Journal,
Vol.3 No.4,
April
28,
2016
ABSTRACT: The artificial application of water to land to aid crop production has
enabled man to increase his ability to produce food and cash crops. All-the-year
round crop production is now possible instead of the previous restriction to
rain fed agriculture. However, conserving water and delivery it to the fields
in an efficient manner has continued to be a challenge. The design of
small-scale irrigation project will provide supplementary irrigation for many
farmers. This paper presents design of small scale irrigation in Dara Wereda by
assessing irrigation agronomy, analyzing hydrological condition of the area and
designing different engineering structures like the headwork structure, main
canal, cross drainage structure, etc. and also analyzing the stability of the
structure which already designed. The structure we design in this project will
resist the 50 year return period peak flood. Design considerations of canals
naturally vary according to the type of soil. Again, the velocity of flow in
the canal should critical. The canals cross the natural drain or gullies so
suitable structure must be selected and designed. Finally, we put our
conclusion and the necessary recommendation for the government, society,
university and stakeholders.