Innovating Naci Dike towards Better DRR Technology

The Naci Dike Technique is a light engineering structure and low-cost technology designed to protect or rehabilitate riverbanks, developed by TLDFI in partnership with LGU Surallah from the ideas presented by the farmers of Barangay Naci. As it is popularly known, Naci Dike uses bamboo poles, Napier grasses, and bamboo twigs to protect or rehabilitate riverbanks. After that, bamboo propagules, forest, and fruit trees were planted on its back.

In Barangay Naci, the bamboo poles were burrowed 6 to 8 feet deep and with a distance of 1 meter in between poles in 3 lines. The bamboo twigs were tied in the bamboo poles to collect debris and silts during flooding and repeated until the residue and silts had formed an island where the Napier grass could be planted. The Napier grass, once fully grown, serves as the first line of defense against the flood water, and once the bamboo propagules, forest trees, and fruit-bearing trees are planted and fully developed, this will serve as the last line of defense. Over time, TLDFI has further enhanced the technology adapting to various challenges present in its different project areas. Variations in the design generally involve only the distances between bamboo poles and the number of lines of bamboo poles affects; the plan depends on the river's characteristics, especially its water volume and current.