TEHRAN -- The Resalat Tunnel will be officially inaugurated today in a special ceremony to be attended by the president, Tehran mayor and Tehran City Council members.

Tehran citizens can start using the 1,900 meter tunnel, connecting east and west Tehran, from Sunday July 16.

The Resalat tunnel, among the biggest national development projects, took nine years of hard work to be constructed.

It is one of the longest highways in the heart of Tehran.