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PROJECT
AMANDIT
BATANG ANGKOLA
BAJULMATI
BATANG BATAHAN
BATANG TONGAR
JABUNG
KARAU
LAKITAN
LANANG
LEMAH ABANG
LEUWI GOONG
LODAN
MUKO MUKO
OKAK
PANTI RAO
SAPON
SIMODONG
WAY CURUP
WAY RAREM
Jl. Sultan Hassanudin No. 45 Kebayoran Baru
Jakarta Selatan Ph : 62 251
72796081 e-mail : ptsl2@cbn.net.id
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A.
A. Project Description
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Item |
Description |
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1.
Name of Project |
Sapon Irrigation Sub-Project |
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2.
Location |
(1) General Layout is shown in Figure A-1.
(2) Project Location and Administration
·
Province : Yogjakarta Special Province
·
District : Kulon Progo
·
Sub-district : Srandakan
30 km southwest of Yogjakarta City |
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3.
Objective |
(1)
To enhance rice production through water resources development
(2)
To increase the income of inhabitants in and around the project
area
(3)
To raise the farmers living standard
(4)
To increase employment opportunity in the area
(5)
To contribute to the development of the rural socio-economic
conditions |
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4. Type of Development |
(1)
Construction of new diversion weir
(2)
Rehabilitation/improvement of main and secondary irrigation canal
(3)
Rehabilitation of irrigation related structures |
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5. Irrigation Development Area |
(1)
Whole project area : 2,250 ha
(2)
Target area under PTSL-II : 2,250 ha |
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6. Water Supply and Water Requirement |
(1)
Water source: Progo River
(2)
Available water supply: as shown in Table A-1
(3)
Irrigation water requirement: Table A-2
(4)
Design unit water requirement: 2.05 l/sec/ha |
B.
Contribution of the Project to Water Resources/Irrigation Development
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Item |
Description |
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1. Necessity of the project |
Entering the 1990s the self-sufficiency of rice in Indonesia is facing a
crisis. Rice production is quite abnormal and irregular compared with
the 1980s. The average unit yield of rice stands stationary in the
1990s. The expansion of irrigation area lost momentum in the 1990s, and
the rice import resumed from 1994. Under such situation, the Government
has adopted a policy of food security and sustenance of self-sufficiency
in rice production.
The crop
intensity of paddy fields in Indonesia is as low as 119% that indicates
a possibility to expand the harvested area and thereby to increase the
rice production through the irrigation development. In 1999, there was
about 2.1 million ha of rain-fed paddy fields and 1.17 million ha of
upland paddy fields in Indonesia, for which the irrigated agriculture
can be efficiently introduced without major problems such as
transmigration, large-scale land development, social infrastructures,
etc.
In order to promote the food security and sustenance of self-sufficiency
in rice production, the government is keen to implement the irrigation
development being effective for rice production, quick yielding and cost
effective
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2. Beneficiary Area |
Most of the project area is served with the irrigation facilities, but
due to the damages of the existing intake facilities, and damages to
main system as well, water shortage occurs therefore the basic
development constraint is damages to irrigation facilities.
·
Irrigated paddy field (village irrigation): 1,195 ha
·
Rain-fed paddy field: 1,055 ha
With
the project implementation, the principal benefit of the project is as
follows:
·
Increase of unit yield of crop by changing from rain-fed
agricultural land to irrigated land |
C. Project Area
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1. Water resources |
The irrigation water for Sapon sub-project is taken from a new
construction of intake weir in the Progo River, having a catchment area
of 2,357 km2 at the weir site.
Joint walk through has revealed that heavy sedimentation is found along
the canal therefore the existing mechanical sediment removal shall be
changed with sediment removal with hydraulic flushing.
The average discharge, the maximum, and the minimum (10 days basis) at
the intake site are estimated to be 96.95 m3/sec, 244.1 m3/sec
and 7.11 m3/sec, respectively.
The river discharge is sufficient for the whole Sapon Irrigation
Sub-project area of 2,250 ha with a cropping pattern of paddy-paddy
(annual cropping intensity of 250%). |
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2. Land use |
The
present land use is as shown below.
·
Irrigated paddy field (village irrigation): 1,195 ha
·
Rain-fed paddy field: 1,055 ha
Tertiary system for rain-fed paddy field of 1,055 ha is required.
There is no need of land development because of all paddy fields in the
sub-project area.
Most of the middle and downstream areas have not received sufficient
irrigation water because of damages on the main system therefore
rehabilitation is required. |
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3. Institutional set-up |
There are 37 WUAs across 16 villages. These were established and
registered in the period of 1990 and 1994.
Five (5) WUAs are classified as “developed”, seventeen (17) WUAs are
classified as “developing”, and the rest are classified as
“underdeveloped”.
The implementation of Irrigation Management Reform Policy (PKPI) has not
given the expected result therefore O&M of almost all of irrigation
facilities are still under the responsibility of the government. |
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4. Environmental issues |
·
The existing free intake weir and the existing canal
system were constructed in the period of 1979 and 1984 by The Progo
River Irrigation Project, therefore no significant problem on land
acquisition occurs.
·
The area in which the works are to be carried out is one
that is already used for agriculture. The area is therefore one in which
the flora and fauna has adapted to a managed agricultural system.
·
There is no major negative environmental impact. |
D. Project Scope
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Item |
Scope of Work |
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1. |
Main Irrigation Canal System |
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(1) Construction of a new diversion weir |
1 nos. |
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(2) Rehabilitation of main irrigation canal |
3.880 km |
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(3) Rehabilitation secondary irrigation canals |
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Kangkeng secondary canal |
7.030 km |
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Pandowan secondary canal |
3.904 km |
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Banaran secondary canal |
6.065 km |
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Patuk secondary canal |
0.663 km |
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Ngremang secondary canal |
3.600 km |
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Pabrik secondary canal |
2.812 km |
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Wonokasih secondary canal |
5.808 km |
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Panjatan secondary canal |
1.491 km |
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Sibarek secondary canal |
3.798 km |
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(4) Rehabilitation of irrigation canal related structures |
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Off-take/division structure |
66 nos. |
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Measuring structure |
11 nos. |
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Culvert |
58 nos. |
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Bridge |
67 nos. |
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Aqueduct |
12 nos. |
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Cross drain |
10 nos. |
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Drop |
13 nos. |
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Foot bridge |
- nos. |
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Washing step |
- nos. |
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2. |
On-farm System |
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(1) Tertiary canal system |
440 ha |
1.
Comparison of the Project Scope
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Item |
unit |
Original |
Revised |
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Intake Weir |
nos. |
1 |
1 |
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Irrigation Canal |
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Main Canal |
km |
3.88 |
3.88 |
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Secondary Canal |
km |
35.17 |
35.17 |
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Tertiary Canal |
ha |
- |
440 |
2. Increase of
Construction Works
The
project scope after design review is not changed substantially from the
original. But the work volumes were increased from the following reasons:
(1) Irrigation Canal
Works
a. Additional lining of main and secondary canal
The joint walk through was carried out with beneficiaries farmers, the
project office staffs, and the Consultant to confirm the improvement
requirements of the existing irrigation canals and their related structures.
It revealed that the main and secondary canals in some parts are heavily
damaged therefore additional canal lining were required.
b. New tertiary canal construction at the tail end area
In the original project scope, no tertiary canal was included. At the tail
end area, there is no tertiary canal. Farmers in this area strongly
requested the construction of tertiary canals for 440 ha.
(2) Intake Weir
a. Necessity of the flood dyke in the upstream of the weir
The design flood discharge of the intake weir was reviewed and revised to
2,520 m3/sec (from 1,950 m3/sec) which necessitated
the new flood protection dike in the upstream of the weir.
b. Foundation piles due to weak foundation of the weir
The additional geological investigations revealed the soft foundation which
requires pile foundation.
c. Improvement of settling basin to enable hydraulic flushing of the
sediments
The existing settling basin is facing the problems of removal of the
sediments for which the sediment removal was planned by mechanical means.
With provision of wear, the settling basin is improved with the introduction
of a hydraulically automatic flushing system to save O&M cost.
d. Provision of foot-path bridge over the weir
According to the villagers’ request made in the public consultation meeting,
the foot-path bridge over the weir (width 2.00 m) is provided.
Although
the project scope is approximately the same, the above mentioned conditions
lead to the large increase of work volumes and construction cost.
E. Implementation Schedule
The implementation
schedule of the project is presented as follows:


(1) The
civil work of the main irrigation system and tertiary canal system will
commence in February 2005 and be completed in July 2007 for a construction
period of 30 months.
F.
Organization and Management Structure
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Item |
Description |
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1. Executing Agency |
Directorate General of Water Resources, Ministry of Settlement and
Regional Infrastructure |
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2. Implementation Management |
Implementation of Sapon Irrigation Sub-project is managed by the
sub-project manager of Kulon Progo. |
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3. Monitoring and Management |
·
At the sub-project level, the sub-project manager will
monitor and control physical and financial progress of the project work
under the guidance of the Yogyakarta Irrigation Project and the Chief of
Provincial Water Resources Services.
·
At the central level, Directorate of Water Resources in
Central Region (DWRC) is responsible for monitoring the progress of the
project. DWRC will report the progress to Directorate of Technical
Guidance (DTG).
·
DTG will compile the information together with other
sub-projects information to prepare the progress report to JBIC.
The
organization and management structure of the project implementation is
as per attached in Figure G-1. |
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4. Payment Procedure and Monitoring of Financial Progress |
·
Direct payment is applied to the civil work contractors.
·
Any payment will be processed with the confirmation of the
contents of invoices by the PTSL-II consultant.
The
flow chart of payment and monitoring procedure for financial progress is
as per attached in Figure G-2. |
II. Organization of Operation
and Maintenance
Appropriate operation and maintenance activities by Water Users’
Associations will be incorporated in O&M of the project through the
formation and empowerment of the WUAs on the basis of the Government
Regulation of Irrigation Turnover (PKPI). |
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