Trimmu Barrage is a barrage on the River Chenab in Jhang District of the Punjab province of Pakistan. It is situated downstream of the confluence of the Jhelum and Chenab rivers. It is situated some 25 km from the city of Jhang near the city of Atharan Hazari where the River Jhelum flows into the River Chenab. It was one of the 7 link canals to be built under the Indus Water Plan of Pakistan. Pakistan created this plan after Indus Water Treaty. Trimmu Barrage is used to control water flow into the River Chenab for irrigation and flood control. Trimmu Barrage was constructed between 1938 and 1939 by British engineers, primarily as a flood control mechanism to protect the city of Jhang from floods. The Chief Engineer was James Douglas Hardy Bedford. Its name was changed later. The arched grid iron's bridge section is integrated with several protective bands. This barrage is undergone several Upgradation like new gates construction, previous gates maintenance. LTV is allowed at specific hours while HTV is Completely ban till completion of Barrage 30 June 2020.Now the traffic is open for HTV and LTV. Head is reconstructed, with new bridges on the river.