Muda River

Muda River () is the longest river in Kedah, Malaysia.
Course.
Sourced in Ulu Muda Forest in Sik region in northeastern Kedah, along the border with Thailand, the river provides water supply to the states of Kedah and Penang. 
The river flows through much of Sik region, then entering the Baling region where it meets with the Ketil river at Kuala Ketil.
It then flows westward, passing through the southern suburbs of Kedah's second largest city Sungai Petani, and forming the natural boundary with Penang state. The Muda river then empties into the Straits of Malacca at Kota Kuala Muda ("Kuala Muda" meaning lower Muda, or the "estuary" of the Muda river in Malay).
Infrastructure.
The Beris Dam, which was completed in 2004 at a cost of RM360 million, is used to regulate the flow of water along the Muda River basin to augment water available for irrigation of paddy or upland crops, for domestic and industrial water supply and other uses.
Climatology.
Muda River Basin received annual precipitation from /year during the period of 1985 to 2015. Mean monthly maximum (Tmax) and minimum (Tmin) temperature at the Ampangan Muda station ranged from and , respectively.
Hydrology.
During monsoon season the rain can lead to heavy flooding. On October 6, 2003, the discharge at Landang Victoria River gauging station was 1340 m³/s.