Nam Oon Dam

Open Days: Daily

Opening Hours: 08.00 – 17.00

 

Nam Oon Dam in Sakon Nakhon is a large earth dam managed by the Royal Irrigation Department. Located in Rae Subdistrict, Phang Khon District, the dam blocks the Nam Oon River, an important tributary of the Songkhram River originating from the Phu Phan mountain range. The dam is 29.50 meters high, has a 3,000-meter crest, and stores about 520 million cubic meters of water. It supports irrigation, agriculture, flood mitigation, and local recreation. The reservoir is wide, peaceful, and surrounded by Phu Phan mountains and forest scenery.

 

Nam Oon Dam, Sakon Nakhon, is one of the most important irrigation and water-management landmarks in Sakon Nakhon Province. It is located in Rae Subdistrict, Phang Khon District, and was built across the Nam Oon River, a major tributary of the Songkhram River. The Nam Oon River begins in the Phu Phan mountain range and forms part of a wider river system that eventually connects with the Mekong River in Nakhon Phanom. For this reason, Nam Oon Dam is not only a scenic reservoir but also a key water infrastructure project for agriculture, flood mitigation, and rural livelihoods in northeastern Thailand.

 

The background of Nam Oon Dam is closely connected to the geography of the Nam Oon basin. The lowlands along both sides of the river were used extensively for rice and other crops, but the area was frequently affected by flooding during heavy rain. In dry periods, the same farmland suffered from water shortages. To solve these recurring problems, the Royal Irrigation Department built Nam Oon Dam as a storage reservoir and irrigation system. Construction of the dam began in 1967, the main dam was completed in 1974, and the water delivery system was completed in 1981.

 

The dam is a large earth dam with a height of 29.50 meters and a crest length of 3,000 meters. It can store approximately 520 million cubic meters of water. The reservoir supports about 185,800 rai of farmland during the rainy season and about 63,000 rai during the dry season. It also helps mitigate flooding in the Nam Oon basin. These figures show that the dam has a practical importance far beyond tourism. It directly supports farming, local livelihoods, and water security in the surrounding region.

 

For travelers, the most attractive feature of Nam Oon Dam is its broad and peaceful reservoir landscape. The reservoir is surrounded by the Phu Phan mountain range, forested areas, and open sky. From the dam crest, visitors can see a wide body of water stretching across the landscape. The scenery is calm and refreshing, making the dam suitable for resting, photography, walking, and enjoying the natural atmosphere. The setting is especially pleasant in the morning and late afternoon when the light is softer and the air is cooler.

 

Near the dam crest, a small waterfall-like flow can be seen when water is released from the dam. This feature adds another layer of interest to the site. Visitors can experience both the stillness of the large reservoir and the movement of released water in the same area. The water release point is also a reminder that the dam is a working irrigation structure, not just a scenic viewpoint. Visitors should therefore follow local safety rules and avoid entering restricted or dangerous areas.

 

Nam Oon Dam is also meaningful for understanding the relationship between water and community life in Sakon Nakhon. Water from the reservoir supports agriculture during both rainy and dry seasons. It helps farmers cope with seasonal uncertainty and reduces damage from flooding in the basin. The reservoir also contributes to fisheries and local water-related livelihoods. For foreign travelers, the dam offers a clear example of how large irrigation reservoirs shape rural life in northeastern Thailand.

 

The construction of Nam Oon Dam also influenced local settlement history. Communities located above the future flooded area had to move to higher ground, leading to the development of new settlements and, later, the formation of Nikhom Nam Oon District. This gives the dam a human and historical dimension. It represents not only water management but also migration, community rebuilding, and the transformation of local administrative areas in Sakon Nakhon.

 

The best way to experience Nam Oon Dam is to visit slowly. Travelers can walk near the viewpoint, look across the reservoir, take photographs of the water and mountains, and observe the quiet rural atmosphere. The dam is suitable for visitors who prefer calm places rather than crowded attractions. It is also suitable for families, photographers, and travelers interested in irrigation, agriculture, and water-resource management.

 

Getting There is straightforward by private car. From Sakon Nakhon city, take Highway 22 on the Sakon Nakhon – Udon Thani route. About 5 km before Phang Khon District, turn left onto the Phang Khon – Waritchaphum road, Highway 227, and continue for about 5 km to the dam area. The total distance from Sakon Nakhon city is about 57 km. Private car or motorcycle is the most practical option because it allows visitors to stop at viewpoints and nearby attractions more conveniently.

 

The best times to visit are morning and late afternoon. Morning offers cool air and soft light across the reservoir. Late afternoon is suitable for warm landscape photography and quiet relaxation by the water. The rainy season and the period after rain make the surrounding landscape greener and the reservoir fuller. The cool season offers comfortable weather for a relaxed visit. During the hot season, visitors should prepare drinking water, sun protection, and a hat because open reservoir areas can be exposed to strong sunlight.

 

Visitors should respect safety rules because Nam Oon Dam remains an active water-management site. Do not enter restricted zones, climb dam structures, swim in unmanaged areas, or approach water-release areas too closely. Families should supervise children near the reservoir edge. Elderly visitors should choose level and safe walking areas. Responsible travel is important because the reservoir supports agriculture and local livelihoods.

 

Nearby attractions can be combined with Nam Oon Dam for a fuller travel route. Nikhom Nam Oon District has a history connected with the construction of the dam and includes important local attractions such as Wat Pha Thep Nimit and Phu Dan Dan Tae. Travelers with more time can also continue to Phra That Phu Phek or Sakon Nakhon city, where Phra That Choeng Chum Worawihan and Nong Han Lake are major attractions. This route combines water-resource history, nature, community, and Buddhist heritage.

 

Food and accommodation are available near the dam, in Phang Khon District, and in Nikhom Nam Oon District. Travelers can find local restaurants, cafes, resorts, and small hotels in the surrounding area. Planning ahead is useful, especially on weekends and long holidays. Visitors who prefer convenience may stay in Phang Khon, while those who want to focus on the reservoir can choose accommodations closer to Nam Oon Dam.

 

Overall, Nam Oon Dam is a valuable destination for travelers who want to see a practical and scenic side of Sakon Nakhon. It is a large earth dam, an irrigation reservoir, a flood-mitigation project, a local recreation area, and a landscape surrounded by the Phu Phan mountains. Its importance lies in the way it connects water, agriculture, community history, and natural scenery. For foreign visitors, Nam Oon Dam provides a meaningful look at rural water management in northeastern Thailand.

 

 

A: Nam Oon Dam is located in Rae Subdistrict, Phang Khon District, Sakon Nakhon Province. It is an earth dam built across the Nam Oon River.

 

A: Nam Oon Dam is open daily from 08.00 to 17.00. Morning and late afternoon are the most suitable times for sightseeing and photography.

 

A: There is no admission fee for the general visitor area of Nam Oon Dam.

 

A: Nam Oon Dam was built to store water for irrigation, support rainy-season and dry-season agriculture, and help reduce flooding in the Nam Oon basin.

 

A: It is a large earth dam, 29.50 meters high, with a 3,000-meter crest and a storage capacity of about 520 million cubic meters. The reservoir is surrounded by the Phu Phan mountain range.

 

A: Morning is best for fresh air and soft light, while late afternoon is ideal for warm reservoir views and relaxed photography.

 

A: Nearby attractions include Wat Pha Thep Nimit, Phu Dan Dan Tae, the Nam Oon River boat route, Phra That Phu Phek, and Phra That Choeng Chum Worawihan in Sakon Nakhon city.

 

A: Visitors should bring drinking water, a hat, sunscreen, comfortable shoes, a camera, and a personal rubbish bag, and should follow safety rules around the dam and water-release areas.