3. Sinthukit-PreCha Weir The Northern Thailand’s first Governmental Constructed Irrigation System Completed 1929
4. CHAINGMAI IRRIGATION PROJECT RID-CEO The Headquarters of the Regional Irrigation Office I is located at Wat Ket Sub-District , Muang District, Chiang Mai Province, about 720 km from Bangkok. It is accessable by road, rail and air. Regional Irrigation Office I Height 310.00 msl
5. Location The Regional Irrigation office I is one of the seventeen regional irrigation offices, established under the Royal Irrigation Department . The Regional Irrigation office I covers Chiang Mai, Lumphun and Mae Hong Son province. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
10. CATCHMENT AREA Mae Kuang Reservior Da. = 569 Km 2 Mae Ngad Reservior Da. = 1,281 Km 2 Mae Ping River Da. = 1,600 Km 2 Mae Tang Weir Da. = 1,880 Km 2 Mae Faek weir Da. = 2,881 Km 2
11. Nov กรมชลประทาน กระทรวงเกษตรและสหกรณ์ Runoff 8,062 MCM. Water Shortage ( Dry season ) 695 MCM. Water Demand 3,715 MCM. Inflow- Water Demand in Upper Ping River Basin Apr May Mar Feb Jan Dec Oct Sep Aug Jul Jun MCM Month
12. Present and Future Water Demand in Upper Ping Basin Water Quantity ( MCM ) Present Future ( 20 yr. ) 1. Runoff Volume in Upper Ping River Basin 8,062 8,062 2. Water Demand (Needed) 3,715 4,589 - Agriculture 2,950 3,785 - Consumption 94 120 - Industrial & Tourism 16 29 - Ecology 655 655 3. Water Use (Available) 2,79 4 4,589 - Water Supply (Supplied via Irrigation Sys.) 2,281 3,669 - Storage Capacity 739 920 4. Water Shortage 695 - 5. Water Release (Left over from Upper Ping) 5,26 8 3,473
13. Project (4 Types) No. Storage Capacity Area (rai) 1. Large Scale Project 3 52 8 423 , 0 00 - 3. Small Scale Project 830 105 - 914,233 2. Medium Scale Project 35 106 213 , 44 6 - 4. Pumping Project 83 - 91,321 - Total 780 739 727 ,767 914,233 Present Water Resource Development ( MCM ) Complete Semi-Complete Irrigation Projects @ RID1 Average annual rainfall 1,220.4 mm. Chiang Mai Lamphun
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16. โครงการส่งน้ำและบำรุงรักษาแม่แตง Mae Tang Weir Ping River Lumpang Lumpoon Mae Taeng Project Mae Tang weir is a reinforced concrete structure enduring maximum flow of 24 MCM/sec Irrigated Area 148,000 Rai Chiang Mai City
17. Irrigated Area 82,000 Rai โครงการส่งน้ำและบำรุงรักษาแม่แฝก - แม่งัด Mae Faek Project Mae Ngad Project Ping River Lumpang Lumpoon The 59 m. tall Mae Ngad dam barricades Mae Ngad stream holding capacity 265 MCM Chiang Mai City
18. Municipal Water Supply Electricity Generators 4,500 kw x 2 = 9,000 KW Total output approx. 24.5 million kw / year Mae Ngad = The multi-purpose Dam
20. Chiang Mai City Lumpang Lumpoon Irrigated Area 48,400 Rai Mae Ping Kao Project
21. 16 MEDIUM SCALE IRRIGATION PROJECTS IN CHIANG MAI IRRIGATION PROJECT Total Capacity 71.357 MCM Irrigated Area 117,446 Rai อ่างเก็บน้ำแม่ตะไคร้ อ่างเก็บน้ำโป่งจ้อ อ่างเก็บน้ำแม่ตูบ ฝายเหมืองใหม่ อ่างเก็บน้ำแม่ออน อ่างเก็บน้ำแม่โก๊น อ่างเก็บน้ำแม่แหลงหลวง
22. MEDIUM SCALE IRRIGATION PROJECTS IN LUMPHUN IRRIGATION PROJECT
23. MEDIUM SCALE IRRIGATION PROJECTS IN MAEHONGSORN IRRIGATION PROJECT
24. Small Scale Irrigation Projects beneficial areas 95,000 ha Royal Initiative Projects beneficial areas 18,275 ha
33. . การบริหารจัดการน้ำในอ่างเก็บน้ำขนาดใหญ่และขนาดกลาง (Reservoir Operation) Chiang Mai Lamphun Mae Hong Son Large-Scale Reservoir 1. Mae Ngad Dam 2. Mae Kuang Dam Medium-Scale Reservoir 3. Mae-On Res, 4. Mae Toob Res. 5. Huay Ma Now Res. 6. Pong Jo Res. 7. Mae Ta Krai Res. 8. Mae Gon Res. 9. Mae Jok Luang Res. 10. Huay Dua Res. 11. Mae Lang Luang Res. 12. Sun Nong Res. 13 . Mae Khon res. Medium-Scale Reservoir 1. Mae Thi Res. 2. Mae Teep Res. 3. Mae Sarn Res. 4. Mae Mie Res. Medium-Scale Reservoir 1. Mae Hong Son Reservoir
42. Mae Ngad Detail : Divert MCM / Year (26 cms ) Cost 4,871.54 Million Baht Beneficial - Irrigation area increase 40,860 Rais - Serve household and Industrial 49.99 MCM more - Economical stimulation 864.83 Million Baht / yr Mae Kwang Diversion Tunnel Mae Tang ลำน้ำแม่แตง ลำน้ำปิง ลำน้ำแม่งัด Mae Tang – Mae Ngad –Mae Kwang Trans-basins Diversion Project
45. Mae Ping Operation Gate Project 6 Regulating Gates12.50 x 6.50 m . Max Q 1,200 cms Automatically Operated Traditional Lanna Style Design for City Landmark Purpose Fish ladder 3.00m x 270m
48. รายงานสถานการณ์ทาง Internet ใน Website http://www.hydro-1.com PR with Community through Internet ( To inform the communities about the flood in advance) www.hydro-1.com