Prime Minister Narendra Modi inaugurated the country’s longest bridge – the Dhola-Sadia Bridge in Assam today. He named the bridge after legendary singer Bhupen Hazarika. 
This three-lane 9.15 km bridge, built over river Brahmaputra, links Dhola to Sadia. It will reduce the distance from Rupai on NH-37 in Assam to Meka-Roing on NH-52 in Arunachal Pradesh by 165 km. 

The travel time between the two places will come down from the current six hours to just one hour, a total five-hour reduction. 
This will result in saving of petrol and diesel worth Rs 10 Lakh per day. 
Road connectivity will see a major transformation as this bridge will fill a huge connectivity gap that has existed in the north east region. The only means to cross the Brahmaputra at this location till now has been by ferry in day-time and even this is not possible during floods. 
This bridge will also give a major boost to overall economic development of the areas north of Brahmaputra in upper Assam and Arunachal Pradesh. 
It will also cater to the strategic requirements of the country in the border areas of Arunachal Pradesh, besides facilitating numerous hydro power projects coming up in the state.