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Floods and water shortages.

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Offline Alfie

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Online Roger

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Anton - any idea of that locality Km 365 ? Approaching Wang nam Kieaw ???
(Travelling 304 next week). Tks.
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Offline Anton

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Small weirs are being put up here and there in expectation of long drought period coming up. Here in Muen Wai หมื่นไวย subdistrict, Mueang, Nakhon Ratchasima. Video uploaded today.


<a href="http://www.youtube.com/watch?v=tuunykOii1M" target="_blank">http://www.youtube.com/watch?v=tuunykOii1M</a>


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Offline Anton

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It seems we're not over with this topic for this year yet. A 60 m segment of Road 304 collapsed due to heavy rain, at km 365 in Nakhon Ratchasima Province

After 2 months, no repair works started yet, according to this news report uploaded today:


<a href="http://www.youtube.com/watch?v=g4WDlB8BXMI" target="_blank">http://www.youtube.com/watch?v=g4WDlB8BXMI</a>
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Online Roger

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Apart from a likelihood of floods in the next few months (?) , this of course is good news for Korat and let's face it, we could use some  ::)

Lam Takong is already at 68% of capacity and this should improve to full capacity by November if the worthies are right this time, (the other main dams are at 65% and 60%).

Meantime, better look out the 'flippers'  ;)

https://thethaiger.com/news/national/3-northeastern-dams-set-to-reach-full-capacity-by-november?
« Last Edit: September 07, 2021, 08:48:27 AM by Roger »
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Offline Anton

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Lam Phra Phloeng reservoir now at risk of overflowing according to this alert of yesterday, I don't know how much reliable. Floods announced for some Pak Thong Chai and some Chok Chai subdistricts.

<a href="http://www.youtube.com/watch?v=9aiKTheor58" target="_blank">http://www.youtube.com/watch?v=9aiKTheor58</a>
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Offline Coolkorat

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Lam Phra Phloeng reservoir now at risk of overflowing according to this alert of yesterday, I don't know how much reliable. Floods announced for some Pak Thong Chai and some Chok Chai subdistricts.

<a href="http://www.youtube.com/watch?v=9aiKTheor58" target="_blank">http://www.youtube.com/watch?v=9aiKTheor58</a>

I wonder if this will be a repeat of the last floods - Ayutthaya and BKK underwater. All that water has to make it's way to the sea at some point.


Offline Alfie

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Lam Phra Phloeng reservoir now at risk of overflowing according to this alert of yesterday, I don't know how much reliable. Floods announced for some Pak Thong Chai and some Chok Chai subdistricts.

My Thai Water app says that today the Lam Phra Phloeng reservoir is 87% full.

I wonder if this will be a repeat of the last floods - Ayutthaya and BKK underwater. All that water has to make it's way to the sea at some point.

Different river systems, CK.  Bangkok and Ayutthaya were affected by water from the Chaophraya River that came from the north and central regions. The water in the Lam Phra-phloeng reservoir and canal will flow towards the east joining the Moon River at some point. If the water makes it to the sea, it will be via the Mekong river, which the Moon River flows into somewhere near Ubon Ratchathani.


Offline Coolkorat

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Different river systems, CK.  Bangkok and Ayutthaya were affected by water from the Chaophraya River that came from the north and central regions. The water in the Lam Phra-phloeng reservoir and canal will flow towards the east joining the Moon River at some point. If the water makes it to the sea, it will be via the Mekong river, which the Moon River flows into somewhere near Ubon Ratchathani.

Thanks Alfie - I had no idea, and just assumed all water from 'Isaan' flowed to the sea via BKK. Very glad you explained and clarified this. It's my geographical knowledge failure, but I am sure I'm not alone in adding 2+2 and getting 7.4.


Offline Alfie

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Well, Bangkok and Ayutthaya may stills ee flooding this year.  The following is from the Bangkok Post today.

Downstream warning: Chao Phraya Dam to discharge water

Provinces in the Chao Phraya river basin have been warned of possible flooding as the Chao Phraya Dam begins discharging excess water downstream.

The warning was issued in an urgent lettter sent on Monday night by Irrigation Department deputy director-general Taweesak Thanadechopol to governors of provinces downstream from the dam.

The letter said a large volume of water was moving down through Nakhon Sawan to Chao Phraya Dam in Chai Nat, at 1,800-1,900 cubic metres per second. Water from the rain swollen  Sakae Krang river in Uthai Thani was also flowing into the dam's reservoir.

Although about 400 cubic metres per second of water was already being diverted into retention areas on both sides of the river, the volume of water on the northern side of the dam was increasing rapidly.

It was necessary for the dam to increase the discharge rate to between 700 and 1,500 cubic metres per second. As a result, from Sept 15-18 the water level below the dam would rise by up to 2 metres.

Low-lying areas in Ayutthaya would initially be affected, including tambon Ban Krathum and tambon Hua Wiang of Sena district, tambon Tha Din Daeng in Phak Hai district, and some tambons in Bang Ban and Bang Sai districts.

The department would try to keep the discharge rate at no more than 1,500 cubic metres per second, to minimise flooding.

https://www.bangkokpost.com/thailand/general/2181563/downstream-warning-chao-phraya-dam-to-discharge-water


I'll attach a diagram of the Chaopraya river and the rivers feeding into it.


Offline Alfie

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Here are some maps showing the Moon River (aka Mun River) and related waters in Northeastern Thailand.