One of the important infrastructures in Gerendong Village, Koroncong Subdistrict, Pandeglang Regency, Banten Province is the drainage channel. Drainage canals were built with the aim to drain excess water into the river. However, the condition of the drainage canals in the village suffered damage and did not function as they should. Shrubs or grasses around the drainage canal also inhibit the flow of water into the river, causing flooding at some point.