-1980, the preliminary study report on major technical problems of the Yangtze River estuary crossing project was completed.

-1977- 1979, and carried out special studies on river regime, hydrology, shipping and risks.

-1981-In September, the construction of Shanghai Yangtze River Bridge started.

—June 1980, the first box girder of the bridge was prefabricated.

-1June, 1983, the prefabrication, transportation and erection of 70-meter prestressed concrete box girder of the non-navigable hole of the bridge undertaken by the Bridge Bureau were all completed, and the bridge entered the superstructure construction stage.

-1983165438+1On October 28th, the main tower of Shanghai Yangtze River Bridge was successfully capped.

-1May, 983, the early closure with the middle reaches of Da Qiao was realized.

-1983-On June 27th, Shanghai Yangtze River Tunnel Bridge Project was completed.

-19801October 3 1 day 18, officially opened to traffic.