Mayor Ying Yong stressed heritage protection when he inspected the reconstruction of Huangpu River waterfront last week.
He and Vice Mayor Chen Yin visited Yangpu Bridge area, Qinhuangdao Road Ferry, and Air China Huishan block.
Ying praised Yangpu and Hongkou district governments and other organizations for their hard work and said the reconstruction project should give priority to heritage protection.
Old factory buildings along the river bank should be preserved as they are reminders of industrialization in modern China, the mayor said.
He urged officials to complete the project with high quality by the end of the year.
Launched in August last year, the project will connect public spaces on both sides of the Huangpu River in downtown Shanghai.