PRESENTATION PAPER ON SMALL SCALE IRRIGATION

TECHNIQUES

ABOUT IRRIGATION INFRASTRUCTURE IN UGANDA

BY

BYARUHANGA K. GODFREY(COUNTERPART STAFF SIAD PROJECT)

16thApril 2009

CURRENT SITUATION OF IRRIGATION INFRSTRUCTURE

• Based on irrigation schemes, most of the few existing irrigation schemes need to be rehabilitated

Components of irrigation infrastructure

• Water source ( Water reservoir, lake, river, spring, wells, borehole)

• Water conveyance system from source to field (canals or pipes)

• Water abstraction (diversion structures, weirs, turnout, vertical check gates and gates)

• Facilitating equipment (water pumps, siphons, sprinklers, micro-jets, drippers)

Components of irrigation infrastructure cont.

• Energy dissipating structures (drops, cutes, stilling basins and pressure regulating valves

• Structures (farm roads, bunds, culverts)• Field• Drainage system

Design procedure

• Field survey

• Production of topographical map

• Irrigation layout plan

JICA DEMO SITE

Small scale gate and turn-out in Bugiri

Irrigation structures in Uganda

Lateral drain joining main drainage canal at Doho irrigation scheme

Shapes of structures

Irrigation structures in Egypt

Irrigation canal in Egypt Electric water pump in Egypt

Drip lines with drippers

Water reservoir

CHALLENGES

• Lack of maintenance culture• Lack of equipment• Erratic weather conditions• Lack of adequate data on rainfall • Funding problem• River bank erosion

ACTION PLAN

• Development of water harvesting technologies

- Potential sites identification basing on topography and run-off capacity

- Soil profiles• Training; Farmers, contractors• Rehabilitation of existing schemes

THANK YOU FOR YOUR

ATTENTION