Nam Phung Dam is a landmark infrastructure project of immense historical and strategic importance to Thailand. It stands as the very first multipurpose dam in Northeastern Thailand (Isan), constructed to simultaneously address the needs for renewable energy and large-scale irrigation. The project was a cornerstone of the First National Economic and Social Development Plan. On November 14, 1965, His Majesty King Bhumibol Adulyadej the Great (Rama IX) presided over the official inauguration, marking a transformative era where hydroelectric power began driving the industrial and agricultural growth of Sakon Nakhon and Nakhon Phanom provinces.

From an engineering perspective, Nam Phung Dam is a sophisticated rock-fill structure with a compacted clay core, meticulously designed to withstand the geological characteristics of the Phu Phan mountain range. The dam rises 40 meters from its foundation, with a crest length of 1,720 meters and a width_ of 10 meters. Its reservoir spans approximately 21 square kilometers, capable of storing up to 165 million cubic meters of water. The onsite powerhouse is equipped with two generators, each with a capacity of 3,000 kW, totaling a combined capacity of 6,000 kW. It generates an average of 17 million kWh of clean energy annually, which is integrated into the national grid via the Sakon Nakhon High-Voltage Substation to power thousands of local households.

Ecologically and aesthetically, Nam Phung Dam is often referred to as the "Green Lung" of Sakon Nakhon. Located within the protected boundaries of the Phu Phan National Park, the reservoir is surrounded by dense dry evergreen and mixed deciduous forests. The landscape, characterized by vast expanses of water framed by undulating mountain ridges, resembles an alpine lake in a tropical setting. During the peak winter months (November to January), temperatures can drop to 10-15°C, creating a serene atmosphere with mist drifting over the water’s surface. Beyond its beauty, the dam provides essential irrigation for over 100,000 rai of farmland and supports a thriving local freshwater fishery. This synergy makes Nam Phung Dam a prime example of sustainable development, where modern hydraulic engineering works in perfect harmony with the natural environment and local livelihoods.

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How to Get There

• From Sakon Nakhon city, take Highway 213 (Sakon Nakhon - Kalasin) towards Phu Phan District. After approximately 30 kilometers, you will see a sign for the Nam Phung Dam entrance on the left. Turn left and follow the paved road for about 2 kilometers to reach the dam.

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Travel Tips

• To experience the cool weather and mist over the reservoir, visit between November and late January. Early mornings (06:30–08:00 AM) offer the freshest air and the most beautiful soft lighting.

• The dam crest stretches over 1.7 kilometers. It is a popular spot for jogging and walking. Wearing comfortable sneakers is highly recommended, as the path is paved.

• To maintain its tranquility, there are few commercial stalls directly on the crest. It is wise to bring your own water and light snacks, but please ensure all trash is taken back with you.

• Even during the day, the breeze on the mountain can be chilly. Temperatures are usually 2-3°C lower than in Sakon Nakhon city, so carrying a light jacket is a good idea.

• Look out for local vendors near the entrance selling dried fish from the reservoir or local crafts. These are authentic and fresh and support the surrounding community's livelihoods.

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Admission Fees:

• Free of charge (No admission fee)

Opening Hours:

• Open daily from 06:00 AM to 06:00 PM.