MINISTRY OF WATER AND
IRRIGATION
(MoWI

DISTIRIBUTION OF IRRIGATION
POTENTIALS

High potential: 2.3 million ha
Medium potential: 4.8 million ha
Low potential : 22.3 million ha
Total 29.4 million ha

KILIMANJARO ZONAL
IRRIGATION AND TECHNICAL
SERVICES UNIT (KZITSU)
The KZITSU covers the three regions:
– Tanga - 26,809 sq.km;
– Kilimanjaro - 13,309 sq.km;
– Arusha - 36,486 sq.km.

Total irrigation potential is approximately 219,542 ha whereas total area under irrigation is estimated at over 96,513 ha as follows:
Tanga region: 8,676 ha
Kilimanjaro region: 45,767 ha
Arusha region: 42,070 ha
96,513 ha

According National Irrigation Master
Plan(2002), there are four (4) types of small-holder irrigation schemes existing in
Kilimanjaro Irrigation Zone:
Traditional irrigation schemes………. 630
Water harvesting schemes
( Spate Irrigation) …………..…………....6
Modern irrigation schemes……………..26
Improved traditional irrigation
Schemes………………………………...42
TOTAL 704

MINISTRY OF WATER AND IRRIGATION
WATER SECTOR
IRRIGATION
INFRASTRUCTURE
DEVELOPMENT DIVISION
(ASSIST. DIRECTOR)
IRRIGATION
PLANNING AND
DESIGN SECTION
(HEAD)
IRRIGATION
INFRASTRUCTURE
CONSTRUCTION AND
SUPERVISION SECTION
(HEAD)
IRRIGATION SECTOR
(DIRECTOR)
IRRIGATION RESEARCH, TECHNOLOGY
PROMOTION AND MONITORING &
EVALUATION DIVISION
(ASSIT. DIRECTOR)
IRRIGATED CROP PRODUCTION, OPERATION AND
MAINTENANCE AND TECHNOLOGY
DISSEMINATION DIVISION
(ASSIST.. DIRECTOR)
IRRIGATION RESEARCH,
TECHNOLOGY PROMOTION AND
MONITORING & EVALUATION
SECTION
(HEAD)
IRRIGATED CROP PRODUCTION
PROMOTION AND TECHNOLOGY
DISSEMINATION SECTION
(HEAD)
IRRIGATION
OPERATION AND
MAINTENANCE AND
DOCUMENTATION
SECTION
(HEAD)
ZONAL IRRIGATION AND TECHNICAL SERVICES UNITS
(ZONAL IRRIGATION ENGINEERS / OFFICERS)
DISTRICT
IRRIGATION
OFFICES

ORGANIZATIONAL STRUCTURE
– KILIMANJARO ZONAL IRRIGATION AND
TECHNICAL SERVICES UNIT
ZONAL IRRIGATION AND TECHNICAL SERVICES UNIT
(ZONAL IRRIGATION ENGINEER)
ASSISTANT ZONAL IRRIGATION
ENGINEER
REGIONAL IRRIGATION
OFFICE
(Irrigation Engieer / Officer)
DISTRICT IRRIGATION
OFFICE
(Irrigation Engieer / Officer)
FINANCE AND
ADMINISTRATION
ACCOUNTS AND
PROCUREMENT
(HEAD OF SECTION)
ACCOUNTS
(Accoutants)
PROCUREMENT
(Supplies Officers)
SURVEY AND DESIGN
(HEAD OF SECTION)
SURVEY
(Surveyor)
DESIGN
(Engineer)
CONSTRUCTION,
SUPERVISION AND FOLLOW-
UP
(HEAD OF SECTION)
CONSTRUCTION AND
SUPERVISION
(Engineer)
FOLLOWUP OF OPERATION
AND MAINTENANCE
(Engineer / Agronomist)
SOILS, AGRONOMY AND
DOCUMENTATION
(HEAD OF SECTION)
SOILS
(Soil Scientist)
AGRONOMY
(Agronomist)
DOCUMENTATION
(Documentalist)
WORKSHOP AND
MACHINERY MAITENANCE
(HEAD OF SECTION)

• Role of the Zonal Irrigation and Technical
Services Units:
– Assist districts in identification of potential areas for irrigation development;
– Conduct topographical surveys or supervise survey work whenever implemented by private surveyors;
– Assist districts to develop plans and designs of irrigation schemes and prepare tender documents for District Tender Boards;
– Assist districts in the process of tendering of works and procurement of facilities;
– Assist districts in supervision of contracts;

– Conduct awareness seminars to district staff and facilitate district teams to organize awareness seminars and workshops to farmers;
– Assist in the arrangement of training for various stakeholders;
– Assist in the commissioning of completed irrigation schemes;
– Selection of dam sites and design dams for construction;
– Assist districts in monitoring production in completed irrigation schemes;
– Assist districts in the preparation of subcomponent budgets; and
– Preparation and submission to BTC of compiled sub-component budget, quarterly and annual
Reports.

Some important activities in hand
1.0 Rehabilitation of Makeresho Irrigation
Scheme (2009/10…..
2.0 Rehabilitation of Mandaka Mnono
Irrigation Scheme (2009/10…..
3.0 Kivulini Irrigation Scheme (2009/10…..
4.0 Mbuganyekundu Irrigation scheme
(2009/10…..)

Makeresho headworks completing sluice gate and intake gate

• Diversion works for Makeresho headworks construction

Makeresho main Canal construction

Concrete block lining for mandaka Mnono MC

Construction of Flume for Mandaka Mnono MC

Kivulini Main canal lining with concrete blocks

Cattle trough for livestock

• Flood dyke construction to protect the floods entering the scheme

Baray River during floods

Main Canal Check drop structure

Division structure

Harvested Onions on bags

• Onion harvesting parking in 10 kg bags ready for export

Stock piling maize leftover after harvest storing for future consumption

• Truck carrying maize leftover for stockpiling

• Stockpiling maize leftover for livestock consumption during dry season

• Hays of beans leftover for livestock which are said to have high nutrients

• Sketch of headwork design

Trash Rack
Semi Automatic
Flood Flushing gates
Newly completed headwork with a bridge

• Tree logs in front of upstream apron after flooding

Semi-Automatic Flood flushing gates
•
Downstream of headworks the part with semi-automatic Flood Flushing gates

Solid wear part
Semi-automatic Flood
Flushing gates
• Downstream of headwork/bridge

Cut down tree logs using chain saw
Chain saw cutting logs of trees

Cut down tree logs using chain saw
• Beneficiaries cutting down the tree logs using chain saw

Inlet /outlet
• Traditional wooden stick storage facility

Inlet
Outlet with a pad lock
• Storage facility made of soil bricks with capacity 1000 kgs

Inlet
Outlet with a pad lock
• Storage facility made of burnt bricks with capacity 2,000 kgs

inlet
Outlet with a pad lock
• Storage facility made of cement paste with capacity 1000 kgs

Inlet
Outlet with a pad lock
Improved grain storage tanks with capacity of 50 tons

Other coupled activities with regard to Spate Irrigation and adaption to climate change a) Water saving technologies b) Environmental protection by minimizing use of firewood in (1) Improved cooking stoves
(2) Use of Rice husks to burn bricks

Inlet pipe from roof gutters
Outlet with a pad lock a) Rainwater harvesting tank from roofs with capacity of 16,000 lts

Lateral pipes
• Drip irrigation – Bucket kit

200 lt water storage tank
Laterals
• Drip irrigation family Kit
Filter

Laterals
• Drip irrigation at agricultural show

200 lt water storage tank
200 lt water storage tank
Agricultural Farmers show on every 8 th of August of each year. Demonstration of water saving technologies

Treadle pump
Use of Tridle pumps for irrigation

b) Improved Stove it uses only quarter of fire wood

Collecting rice husks from paddy milling machines

Using rice husks to burn bricks

Using rice husks to burn bricks

Participation in International Workshop on Mainstreaming Spate irrigation in Higher Education will be fruitful if at the end of workshop we will be able to produce curriculum which can put the acquired knowledge into practice and solve people’s problem at grassroot level .
I can quote former United Nation Secretary General Mr. Koffi Annan who once said that in ‘Africa Knowledge is not lacking. What is lacking is to put the Knowledge into practice”
Materials I brought with me which can be useful to workshop
1) Development of Standard scheme design document for Rainwater
Harvesting Based Irrigation
2) Tanzanian National Irrigation Policy
3) Arusha Technical College (ATC) Degree in Irrigation curriculum

Opinions expressed during my presentation does not necessarily reflects those from Ministry of Water and
Irrigation
By Eng. Kamil Aron Nkya
255 754 496 805 kamilnkya@yahoo.com