More than 21,600 hazardous bridges in China have been renovated in the past 12 years, and transportation authorities across the country are attaching more importance to this issue, said the Ministry of Transport.

"Bridge construction and safety is an issue of public concern and one of the key tasks of transport departments across the country," said a statement published on Tuesday on the ministry's website.

A total of 43.88 billion yuan ($7.05 billion), including 17 billion yuan from the ministry, was invested in the renovation of 21,610 hazardous bridges from 2001 to 2012, curbing the high incidence of bridge accidents, according to the statement.