A dredging machine of CRCC Harbour and Channel Engineering Bureau Group Co., Ltd. spews muddy water after extraction from a channel of Padma river in Shariatpur, Bangladesh on May 27, 2019. The company has been dredging the Padma river to increase the depth of some important navigation channels in several key river points. The river dredging project is also aimed at reducing the risk of flooding through river bank protection measures. (Xinhua/Stringer)

A dredging vessel of CRCC Harbour and Channel Engineering Bureau Group Co., Ltd. works on Padma river in Shariatpur district, Bangladesh on May 27, 2019. The company has been dredging the Padma river to increase the depth of some important navigation channels in several key river points. The river dredging project is also aimed at reducing the risk of flooding through river bank protection measures. (Xinhua/Stringer)

A dredging vessel of CRCC Harbour and Channel Engineering Bureau Group Co., Ltd. works on Padma river in Shariatpur district, Bangladesh on May 27, 2019. The company has been dredging the Padma river to increase the depth of some important navigation channels in several key river points. The river dredging project is also aimed at reducing the risk of flooding through river bank protection measures. (Xinhua/Stringer)

A dredging vessel of CRCC Harbour and Channel Engineering Bureau Group Co., Ltd. works on Padma river in Shariatpur district, Bangladesh on May 27, 2019. The company has been dredging the Padma river to increase the depth of some important navigation channels in several key river points. The river dredging project is also aimed at reducing the risk of flooding through river bank protection measures. (Xinhua/Stringer)

A dredging machine of CRCC Harbour and Channel Engineering Bureau Group Co., Ltd. spews muddy water after extraction from a channel of Padma river in Shariatpur, Bangladesh on May 27, 2019. The company has been dredging the Padma river to increase the depth of some important navigation channels in several key river points. The river dredging project is also aimed at reducing the risk of flooding through river bank protection measures. (Xinhua/Stringer)

A dredging vessel of CRCC Harbour and Channel Engineering Bureau Group Co., Ltd. works on Padma river in Shariatpur district, Bangladesh on May 27, 2019. The company has been dredging the Padma river to increase the depth of some important navigation channels in several key river points. The river dredging project is also aimed at reducing the risk of flooding through river bank protection measures. (Xinhua/Stringer)