Amandit

Item	Description
1. Name of Project	Amandit Irrigation Sub-Project
2. Location	(1) General Layout is shown in Figure A-1. (2) Project Location and Administration · Province : South Kalimantan · District : Hulu Sungai Selatan · Sub-district : Kandangan 135 km to the northeast of city of Banjarmasin.
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
4. Type of Development	(1) New construction of concrete fixed weir (2) New construction of irrigation canal system (3) New construction of drainage system
5. Irrigation Development Area	(1) Whole project area : 5,472 ha (2) Target area under PTSL-II : 5,472 ha
6. Water Supply and Water Requirement	(1) Water source: Amandit River (2) Available water supply: as shown in Table A-1 (3) Irrigation water requirement: as shown in Table A-2 (4) Design unit water requirement: 1.79 l/sec/ha

B. Contribution of the Project to Water Resources/Irrigation Development

Item

Description

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

The primary objective of PTSL-II is to enhance rice production through water resources development such as irrigation projects or pond/dam projects, contributing to the self-sufficiency of rice in Indonesia.

2. Beneficiary Area

The socio-economic condition of the people in the project area is at the subsistence level due to the limited income from agricultural activities. The basic development constraint is the lack of irrigation water. The present land use is as shown below.

· Rainfed paddy field: 5,472 ha

· Upland: - ha

The Amandit Irrigation Sub-project area extends over both banks of the Amandit River.

In the proposed command area, there extends a large rain-fed paddy field area. However, because of lack of irrigation water, the area is only used for the rainy season paddy. In addition, some downstream part has drainage problem during rainy season.

With the irrigation development and drainage improvement, the sub-project contributes to:

· Increase of cropping intensity from 100% to 200%

· Increase of unit yield of crop by changing from rainfed agricultural land to irrigated land

C. Project Area

1. Water resources	The irrigation water for Amandit sub-project is taken from Amandit River through the proposed Amandit intake weir. The average discharge, the maximum, and the minimum (10 days basis) of Amandit River are estimated to be 28.42 m³/sec, 132.89 m³/sec, and 2.92 m³/sec, respectively. The river discharge is sufficient for the whole Amandit Irrigation area of 5,472 ha with a cropping pattern of paddy (100 %) in the rainy season and paddy (100%) in the dry season (total annual cropping intensity of 200%).
2. Land use	The present land use is as shown below. · Irrigated paddy field: - ha · Rain-fed paddy field: 5,472 ha Irrigation is not provided because there is no irrigation facility yet. Tertiary system for 5,472 ha is required. Some downstream area has a drainage problem during rainy season. All the sub-project area is already the rainfed farmland, so there is no need of land development. The Sub-project area is cultivated with paddy under rainfed condition.
3. Institutional set-up	There is neither water users association nor the irrigation O&M organization of the government in the sub-project area because no irrigation system is constructed so far.
4. Environmental issues	· Land acquisition for the construction work of Amandit was completed in 6 stages by 2002 using APBN therefore no countermeasures for land acquisition are needed. · Resettlement of 5 households from inundation area is already agreed and solved. · The area in which the construction works are to be carried out is already rain-fed paddy field therefore the existing flora and fauna have been well adapted to the existing agricultural system. · There is no major negative environmental impact because there will be no major change in the appearance of landscape, no disturbance on natural habitats, and no loss on historical, cultural and religious sites.

D. Project Scope

	Item	Scope of Work
1.	Main Irrigation Canal System
	(1) Amandit intake weir	1 nos.
	(2) Construction of main irrigation canal	32.83 km
	(3) Construction of secondary irrigation canal
	Kliring Dalam Secondary Canal	6.47 km
	Ambarai Secondary Canal	3.84 km
	Tabihi Tengah Secondary Canal	4.09 km
	Pahampangan Secondary Canal	0.99 km
	Hulu Tengah Secondary Canal	6.09 km
	Bariang Secondary Canal	0.61 km
	Sungai Raya Secondary Canal	3.58 km
	Kalaka Gadung Secondary Canal	6.04 km
	Jambu Hilir Secondary Canal	0.74 km
	Teluk Pinang Secondary Canal	2.67 km
	Said Kuning Secondary Canal	3.84 km
	Halalang Secondary Canal	1.87 km
	Asam Cangkok Secondary Canal	2.42 km
	(4) Construction of irrigation canal related structures
	Off-take/division structure (w/ wooden piles)	40 nos.
	Measuring structure	1 nos.
	Culvert (w/ concrete piles)	49 nos.
	Bridge (w/ concrete piles)	4 nos.
	Aqueduct	4 nos.
	Cross drain (w/ wooden piles)	131 nos.
	Side spillway	13 nos.
	Drop (w/ wooden piles)	21 nos.
	Foot bridge	- nos.
	Washing step	37 nos.
	Chute structure	1 nos.
2.	Drainage Canal System (tentative figures)
	(1) Rehabilitation of floodway	- km
	(2) Improvement of drainage systems	58.0 km
	(3) Rehabilitation of drainage canal related structures
	Bridge	15 nos.
	Culvert	- nos.
	Drain inlet	- nos.
	Foot bridge	- nos.
	Drop structure	- nos.
3.	On-farm System
	(1) Tertiary canal system	5,472 ha

After Public Consultation Meeting and field investigation, the following project works were increased from the original:

(1) Requirement for Bamboo Raft Transportation

The Amandit River has been used by local people for bamboo raft transportation. To avoid obstruction of bamboo raft transportation and in accordance with formal request from local farmers during PCM, the construction of additional structure is required for smooth operation of bamboo raft transportation at weir site.

(2) Foundation Treatment

Due to insufficient bearing capacity of the foundation, the use of concrete piles is necessary underneath the following large structures:

- Left Main Canal: 2 bridges (at BAKr 1i and BAKr 10f)

- Secondary canals: 4 culverts (1 culvert at BTP 2a of Teluk Pinang secondary canals; 1 culvert at BHT 2b of Hulu Tengah secondary canal; 1 culvert at BSR 1c of Sungai Raya secondary canal; and 1 culvert at BKG 5b of Kalaka Gadung secondary canal.

Smaller structures such as division structures, cross drains, drops, and so on require the use of wooden piles to provide sufficient bearing capacity.

For the canal embankment, mostly of the secondary canals, the foundation treatment by means of the foundation soil replacement and the counterweight embankment is needed to avoid sliding of the canal embankment.

(3) Concrete Weir

The weir was originally designed as masonry weir however a fixed concrete weir is required to improve overall weir stability.

E. Implementation Schedule

The implementation schedule of the project is presented as follows:

(1) The civil work of the main irrigation systems will commence in February 2005 and be completed in July 2007 for a construction period of 30 months.

(2) The civil work of the tertiary and drainage system will commence in March 2005 and be completed in February 2007 for a construction period of 24 months.

F. Organization and Management Structure

I. Organization for Implementing the Project

Item	Description
1. Executing Agency	Directorate General of Water Resources, Ministry of Settlement and Regional Infrastructure
2. Implementation Management	Implementation of Amandit Irrigation Sub-project is managed by the sub-project manager of Amandit Irrigation Sub-project.
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 South Kalimantan Irrigation Project Manager 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.
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).