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| :: Responsible Area |
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:: Eastern Part :: |
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North - South : |
From the Raphiphat Canal to the Gulf of Thailand. |
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East - West : |
From the Nakhon Nayok - Bangpakong River to |
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the Chao Phraya River. |
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:: Western Part :: |
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North - South : |
From the Chaochet - Bang Yihon Canal to the Gulf |
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of Thailand. |
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East - West : |
From the Chao Phraya - Bangpakong River to |
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Tha Chin River. |
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| The area covers the area of Pathum Thani, Nonthaburi, Samut Sakhon, Samut Prakan
and some parts of other provinces, namely, Ayutthaya, Suphan Buri, Nakhon Pathom,
Saraburi, Nakhon Nayok and Chachoengsao. The total area is 4,975,760 rai (796,122 hectares).
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| :: Organization structure of the RIO 11 :: consists of |
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:: 4 Sections :: |
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1. Engineering Management Division |
| 2. Operation and Maintenance Division |
| 3. Mechanical Division |
| 4. Operation Division |
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::1 Branch :: |
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1. General Administration Branch |
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| :: Provincial Irrigation Office :: is divided the responsible areas into |
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:: 4 Offices :: |
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1. Nonthaburi Provincial Irrigation Office |
| 2. Phathurn Thani Provincial irrigation Office |
| 3. Sarnut Prakan Provincial irrigation Office |
| 4. Samut Sakhon Provincial irrigation Office |
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| :: Operation and Maintenance Project :: is divided the responsible areas into |
| Eastern Part and Western Part, total |
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:: 8 Projects :: |
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:: Eastern Part :: |
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1. Northern Rangsit Operation and Maintenance Project |
| 2. Southern Rangsit Operation and Maintenance Project |
| 3. Chonhan Phichit Operation and Maintenance Project |
| 4. Phra-ong Chaiyanuchit Operation and Maintenance Project |
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:: Western Part :: |
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1. Chaochet-Bang Yihon Operation and Maintenance Project |
| 2. Phraya Banlue Operation and Maintenance Project |
| 3. Phra Phimon Operation and Maintenance Project |
| 4. Phasi Charoen Operation and Maintenance Project |
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:: 1 Construction Project :: |
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1. Construction Project under RiO 11 |
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Since Regional irrigation Office 11 is located at the Lower Chao Phraya River
before discharging into the sea and its topography is lowland, no source of
capital water and retention water, the water shortage problem in the dry season
and flood problem in the wet season is often occurred. Major causes are the amount of
water from the upper, rainfall in the area and high tide.
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Therefore, one of the important tasks of RIO 11 is to prepare the readiness
before the flood season, to mitigate and solve problem during flood period and to
rehabilitate the area after flood season.
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