Workers conduct the heightening and reinforcement work of dams along the Daqing River in Taitou Town of Jinghai District, north China's Tianjin Municipality, Aug. 3, 2023. To combat the increasing flow of water into the Daqing River, over 1,000 people including workers from some construction companies and local villagers of Jinghai District were busy with the heightening and reinforcement work of dams along the Jinghai section of the river.