Khun Dan Prakan Chon Dam

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Open Days: Daily

Opening Hours: 08:00 - 17:00

 

Khun Dan Prakan Chon Dam, also known as Khlong Tha Dan Dam, is the longest roller-compacted concrete (RCC) dam in the world. It is located at Ban Tha Dan, Hin Tang Subdistrict, Mueang Nakhon Nayok District, Nakhon Nayok Province. This dam is one of the major royal initiative projects of King Rama IX, aimed at sustainable water management, including flood prevention and drought mitigation in the lower central region of Thailand. :contentReference[oaicite:0]{index=0}

 

With a total length of 2,720 meters and a height of 93 meters, Khun Dan Prakan Chon Dam stands as a remarkable engineering structure on a global scale. It has a water storage capacity of up to 224 million cubic meters. The RCC (Roller Compacted Concrete) construction technique enhances structural strength and allows faster construction compared to conventional dam-building methods. :contentReference[oaicite:1]{index=1}

 

The name “Khun Dan Prakan Chon” was graciously bestowed to honor “Khun Han Phithak Phraiwan,” also known as “Khun Dan,” a historical hero of Nakhon Nayok during the Ayutthaya period. He played a vital role in protecting forests and the homeland from threats. The dam’s name reflects both historical significance and the importance of preserving natural resources. :contentReference[oaicite:2]{index=2}

 

The dam’s water system is closely connected to the upstream watershed of Khao Yai National Park. Water flows from this area through Haew Narok Waterfall into the reservoir, ensuring a year-round water supply and supporting a rich and balanced ecosystem around the dam. :contentReference[oaicite:3]{index=3}

 

The primary role of this dam is water resource management within Nakhon Nayok’s watershed. It helps reduce flooding during the rainy season and stores water for use during dry periods. This significantly benefits agriculture and daily water consumption while also minimizing damage from river overflow during heavy rainfall. :contentReference[oaicite:4]{index=4}

 

As a tourist destination, Khun Dan Prakan Chon Dam has become a major landmark of Nakhon Nayok. From the crest of the dam, visitors can enjoy panoramic views of Khao Yai National Park’s mountain range, while the opposite side offers a clear view of Nakhon Nayok town, creating a unique dual perspective in one location. :contentReference[oaicite:5]{index=5}

 

The atmosphere on the dam crest is open and breezy throughout the day. Early morning and late afternoon are the best times to visit, as the sunlight is softer and the scenery appears clearer. Many visitors come here to walk, relax, and take photographs while enjoying the expansive natural landscape. :contentReference[oaicite:6]{index=6}

 

Another popular activity is boat tours into the reservoir area, where visitors can explore natural attractions such as waterfalls and lush forest landscapes. This activity enhances the overall travel experience, making the dam not only a scenic viewpoint but also a complete nature tourism destination. :contentReference[oaicite:7]{index=7}

 

For those traveling by car, access to the dam is convenient. From Bangkok, take Highway 305 (Rangsit – Ongkharak – Nakhon Nayok) for approximately 76 kilometers to reach Nakhon Nayok town. Then follow the same route toward Nang Rong Waterfall (Highway 3049), pass Wang Takhrai Park, and turn right toward the dam. :contentReference[oaicite:8]{index=8}

 

Visitors should prepare for outdoor conditions, as the dam crest can be quite sunny and windy, especially during midday. Wearing a hat, comfortable footwear, and bringing drinking water will help ensure a pleasant visit. Maintaining cleanliness and following site regulations are also essential to preserve the natural beauty of the area. :contentReference[oaicite:9]{index=9}

 

Today, Khun Dan Prakan Chon Dam is not only a vital water resource project but also one of the most popular tourist attractions in central Thailand. Its combination of engineering excellence, natural beauty, and historical significance makes it an ideal destination for both learning and leisure in a single place. :contentReference[oaicite:10]{index=10}

 

 

A: It is located in Ban Tha Dan, Hin Tang Subdistrict, Mueang Nakhon Nayok District, Nakhon Nayok Province.

 

A: It is the longest roller-compacted concrete dam in the world and offers panoramic views of Khao Yai mountains.

 

A: Visitors can walk along the dam, take photos, relax, and enjoy boat tours into the reservoir.

 

A: Approximately 1.5–2 hours, covering around 76 kilometers.

 

A: Early morning and late afternoon are the best times due to cooler weather and better lighting.