Muhuri Project

The Muhuri Irrigation Project (মুহুরী সেচ প্রকল্প), commonly referred to as the Muhuri Project, is Bangladesh's second-largest irrigation project. It comprises a closure dam and water control structure, positioned at the confluence of the Feni, Muhuri, and Kalidas-Pahaliya rivers. This project plays a pivotal role in facilitating irrigation and managing floods across areas in Feni and Chittagong districts.

The project was completed during the fiscal year 1985–86. The surrounding area, featuring artificial water bodies, forestry, bird watching hotspots, and fish farms, has become a notable tourist destination, drawing visitors from across the country. The project area also includes the country's first wind power plant and the largest fisheries zone in Bangladesh.

Irrigation project
The irrigation project influences an area between coordinates 22.45°N, 91.21°W and 23.09°N, 91.35°W, encompassing the upazilas of Feni Sadar, Chhagalnaiya, Parshuram, Fulgazi, and Sonagazi of Feni District as well as parts of Mirsarai Upazila of Chittagong District in the south-eastern region of Bangladesh, adjacent to the coast of the Bay of Bengal.

Dam
The Muhuri Dam, officially called Feni River Closure Dam, is located at Sonagazi Upazila within Feni District, approximately 18 km from Feni town. It sits at the border of Mirsarai Upazila in the Chittagong Division and seasonally holds the river water for irrigation purposes. During early winter, the dam is closed, forming a substantial lake. As the monsoon approaches, the sluice gate is opened to release water.

Background
In the southeastern region of Bangladesh, the Feni River, the Muhuri River, and the Kalidas-Pahaliya River converge and flow into the Bay of Bengal. The area faced challenges such as saline intrusion, flooding during the wet season, and freshwater loss in the dry season. This project aimed to develop agricultural land covering approximately 27000 ha in the tidal zone of the Feni (then part of Noakhali) and Chittagong districts.

Work on the Muhuri Irrigation Project commenced in the fiscal year 1977–78 and concluded in the 1985–86 fiscal year, marking it as the second-largest irrigation initiative in Bangladesh. Its purpose was to mitigate flood risks during the monsoon season and enhance irrigation resources for the aman crop across several upazilas (sub-districts) in Feni and Chittagong districts. The key solution to address the aforementioned challenges was the construction of the Feni River Closure Dam, which enabled the storage of freshwater and prevented flooding and saline intrusion. Haskoning, a Royal Dutch Consulting Engineers firm, was tasked with designing and supervising the construction of the dam in January 1983, erecting a significant water control structure comprising 40 gates across the downstream confluence of the Feni River, Muhuri River, and Kalidas-Pahaliya River. Funding from CIDA, EEC, and the World Bank, along with support from the Japanese company Simujhu, facilitated the construction at a cost of. Consequently, irrigation facilities were extended to 20194 ha of land, with an additional 27125 ha receiving supplementary irrigation provisions.

Expansions
In 1996, plans for expanding the Muhuri Project were initiated, resulting in the development of the Muhuri-Kahua Irrigation Project. This new initiative partially overlaps with the existing Muhuri Irrigation Project.

In June 2014, the Executive Committee of the National Economic Council approved the Irrigation Management Improvement Project for Muhuri Irrigation Project with a budget of US$46 million. This project, aimed at enhancing and modernising the irrigation system, received funding from the Asian Development Bank, supplemented by an additional US$13.5 million concessionary loan. The project targets the repair of 17 km of coastal embankments and the re-excavation of over 400 km of canal drains by 2024. It also plans to introduce a prepaid metering system using electric pumps and underground pipelines to reduce water loss. This effort aims to mitigate flooding during monsoons and expand the dry-season irrigation area of the Muhuri irrigation system by 60 percent to 18000 ha. Following project implementation, it is anticipated that the average yield of irrigated boro paddy will increase to four tons per hectare of land, up from three tons in 2013. Furthermore, the project aims to ensure that at least 2 percent of pump operators, 5 percent of mobile water unit vendors, and 5 percent of project construction workers are women.

Wind power plant
The Bangladesh Power Development Board (BPDB) established the country's first wind power unit during the fiscal year 2004–05. This unit comprised four 225-kilowatt turbines with a total capacity of 900 kilowatts, at an estimated cost of. Lamchi village in Sonagazi Union, within the Muhuri Project area, was chosen as the project site. The turbines, standing at a height of 50 meters, along with associated components, were procured from India and installed by India's Nebula Techno Solutions Company Limited. Experimental electricity generation commenced in 2006, but the power plant was subsequently shut down after a few months. Although power generation resumed for about six years, as of 2022, the facility remains non-operational due to factors such as inadequate wind speeds, as reported by officials.

Fish farming
The Muhuri Project area stands out as the largest fisheries zone in Bangladesh, contributing significantly to the country's economy through substantial annual revenue. Local residents engage in fish farming by constructing enclosures along the embankments within the area. Numerous fishing villages have emerged in the region, supporting thousands of livelihoods, including previously unemployed youth, through fish harvesting. Furthermore, numerous reputable institutions have established commercial fish projects on 7,000 acres of land, encompassing approximately 500 fisheries. These projects cultivate various fish species such as pangas, tilapia (including monosex tilapia), carp, pabda, gulsha, koi, shinghi, magur, and tengra. The fish produced in these projects not only cater to domestic demand but also find markets in different districts of Bangladesh and abroad through exports.

Tourism
Over the decades, the Muhuri Dam has evolved into a popular recreational and picnic destination. During the winter months, numerous visitors travel from various regions across the country to explore its attractions. Encircled by an embankment, the artificial water body surrounding the dam offers a picturesque setting adorned with water hyacinths. Nearby afforestation by the Forest Department hosts deer and monkeys, among other species. The lower slopes of the embankment are adorned with stone lining, while the upper portions feature a carpet of grass. Boating on the Muhuri River provides visitors with an opportunity to observe diverse species of ducks and approximately a hundred different bird species up close.