In the early morning of March 18, two 10,000 square-foot rake suction dredgers "Xinhailong" and
"Xinhaihu 4" sailed into the deep-water channel outside the entrance of Xiazhimen, and the dredging
project was officially launched. The 300,000-ton artificial channel expansion project of Xiazhimen
is one of the city's key construction projects included in the "Thirteenth Five-Year Plan" of the
Ministry of Transport. The construction content of the 300,000-ton artificial channel expansion
project outside the Xiazhimen mainly includes the channel geomagnetic observation, the channel
infrastructure dredging, and the maintenance dredging by using silt curtains and excavator during
the trial operation period. The total excavation volume is about 1.241 million m³. The planned
construction period is 7 months and the total investment is 310 million yuan. Since mid-February,
the bureau has successively completed the water depth measurement and surveyed before the
dredging of the channel. According to the construction plan, the dredging construction has been
officially launched.