In terms of improving canal and irrigation facilities managed by the office, daily inspections are conducted at workstations and local opinions collected and reported to the office for improvements references. After on-site surveys and selection, the office formulates plans and seeks funds from the central government to implement improvements.
For engineering projects under our jurisdiction, major works are entrusted to professional engineering consultancy firms. All other projects are handled internally by our staff, who conduct surveys, designs, drafting, and budget preparations. The procurement process for these projects strictly adheres to the Government Procurement Act, ensuring fairness, impartiality, and transparency in the tendering procedures.


To enhance transparency and public engagement in construction oversight, we hold pre-construction briefing sessions where local farmers and adjacent landowners are invited. This facilitates mutual understanding of project plans and details, fostering two-way communication with the local community to ensure smooth project execution and improve construction quality.
Our canal improvement projects not only meet irrigation and drainage needs and prevent water loss but also implement ecological measures where suitable, depending on project characteristics and available land. These measures include the installation of ecological pools or grooves to provide refuge for fish and shrimp, as well as ecological corridors to facilitate wildlife passage, ensuring environmental protection.


Most of the canals managed by this office are adjacent to farmland. In the past, canal walls were only 12–15 cm thick, and farmers often backfilled soil behind the walls to facilitate field inspections, leading to overgrowth of weeds. Currently, where conditions permit, canal walls are constructed 25 cm thick, with non-slip grooves to make it easier for farmers to inspect their fields and to reduce maintenance costs.


Previously, slab bridges for agricultural machinery were 2 meters wide. Due to changes in farming practices, we have increased the width to 4 meters where feasible, without compromising irrigation and drainage management. This modification allows easier access for agricultural machinery.


Canals managed by this office are often located near farmland, and temporary access roads through fields are necessary for construction. To prevent damage to the hardpan layer during the movement of heavy machinery, steel plates are laid on these temporary roads, protecting the farmland and minimizing the impact on farming operations.
Project quality is managed through a three-tier system. The contractor is responsible for the first level of quality control, while our office and supervising units conduct random inspections to ensure construction quality meets design and contract specifications. Additional oversight is provided by the Council of Agriculture, the Irrigation Agency, and the Public Construction Commission, further supporting the verification efforts of the organizing and supervising units. Our office has also established an engineering supervision team that conducts unannounced inspections during construction and performs random checks of concealed work to strengthen quality control.
For large-scale or specialized projects, our office organizes post-completion briefings and invites local residents to attend. During these sessions, we explain the project's background, content, budget, construction timeline, and expected benefits. These meetings also serve as an opportunity to share the project outcomes with the community.