Sirikit Dam is a massive earth-core dam built across the Nan River in Tha Pla District, Uttaradit Province. It is the largest earth dam in Thailand and one of the most important water resource development projects in northern Thailand. Originally named "Pha Som Dam" after the rock formations near its construction, it was officially named after Her Majesty Queen Sirikit, the Queen Mother, in 1968. The dam is under the management of the Electricity Generating Authority of Thailand (EGAT) and plays a crucial role in hydroelectric power generation, irrigation, flood control, and economic development in the Nan River basin and upper central Thailand.

The most striking feature of Sirikit Dam is its colossal earthen crest, approximately 810 meters long and over 113 meters high, stretching amidst the complex mountain ranges of Uttaradit Province. From the dam crest, one can see the vast reservoir stretching as far as the eye can see, surrounded by lush green mountains and forests. Especially during the rainy and winter seasons, the area above the dam is covered in a thin layer of mist floating above the water's surface, creating a serene and beautiful atmosphere. It has become one of the most famous natural viewpoints in Uttaradit province. Many tourists enjoy strolling along the dam crest to watch the sunrise and sunset, times when the reflections on the water and mountain ranges are particularly stunning.

Above the dam is a large reservoir resembling a freshwater lake in the middle of a valley. Some areas have become small islands after the water level rose following the dam's construction, creating a beautiful and unique landscape. Popular activities for tourists include rafting to admire the reservoir's scenery, boat trips to appreciate the natural beauty, fishing, and overnight stays on floating rafts. At the pier, there are floating restaurants serving local cuisine and freshwater fish dishes from the reservoir, such as Mekong catfish, soft-shelled catfish, and tilapia, which are considered unique to the area's cuisine. Many tourists prefer this peaceful retreat because the surrounding atmosphere remains highly natural and is not as crowded as many larger tourist destinations in the North.

The area around the dam has also been developed into a comprehensive recreational and nature education center. The Electricity Generating Authority of Thailand (EGAT) has created several parks and gardens, such as "Sumalai Garden," a beautifully decorated flower and relaxation garden featuring lawns, sculptures, viewpoints, and areas for leisurely walks amidst fresh air. Additionally, there is the Chalerm Phra Kiat Suspension Bridge spanning the Nan River downstream from the dam, a popular photo spot offering clear views of the dam, the Nan River, and the surrounding mountain range. Nearby is the Phra Phuttha Sirikit Teepanath, a seated Buddha statue that locals and tourists often visit to pay respects and seek blessings.

Beyond tourism, Sirikit Dam plays a vital role in the lives of people in several provinces in northern and central Thailand. Water from the dam is used for agriculture in large-scale farming areas, mitigating drought and maintaining the irrigation system of the Nan River basin. It also helps control water levels during the rainy season to reduce the impact of flooding. Furthermore, the dam's hydroelectric power plant generates electricity to support the national power grid. Therefore, it is considered a development project that has continuously played a significant role in the economy, society, and environment for many decades.

Today, Sirikit Dam remains one of the most important natural tourist destinations in Uttaradit Province. Its vast landscapes, clean air, and tranquil atmosphere make it ideal for tourists seeking relaxation close to nature, photography of the lake and mountain views, or experiencing the simple life along the reservoir. The late rainy season and early winter are considered the most beautiful season for the dam, when the reservoir is full and morning mist covers the water surface. This makes the area distinctly different and charming from other tourist destinations in northern Thailand.

• From Uttaradit city center, take Highway 1045 (Uttaradit - Sirikit Dam) heading towards Tha Pla District. The total distance is approximately 58 kilometers. The route is a well-paved asphalt road with clear signage leading all the way to the dam entrance.

• Arrive early in the morning to enjoy misty reservoir views and cool weather.

• The late rainy season and early winter offer the most beautiful scenery.

• The dam crest is an excellent location for sunrise and sunset photography.

• Bring a hat or umbrella because the sunlight can be very strong during the day.

Admission Fees:

• Free admission

Opening Hours:

• Open daily from 06:00 to 18:00.