The country's cabinet said the projects would contribute to stable economic growth and help push ahead with urbanisation.
"Strengthening urban infrastructure can help boost economic restructuring and change the economic growth mode, contributing to investment and consumption while expanding employment," it said in a statement.
The plans will see China add 50 percent or 1,000km of urban rail networks by 2015 and authorities will also expand and upgrade an 80,000km natural gas pipeline and finish construction of 73,000km of new sewage lines.
China is undergoing fast urbanisation. Its urban population hit 690 million, 51.27 percent of its total population in 2011, the first time that more Chinese have lived in cities than in the countryside.
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