E6 under Ministry of Land , Infrastructure , Transport and Tourism 's " 2016 Proposal for Realization of Expressway Numbering . " The first section of Sendai-Hokubu Road to open was the section between the roads eastern terminus at the Sanriku Expressway and Rifu-Shirakashidai Interchange on 19 May 2002 . At the time , there was no access to the northbound lanes of the Sanriku Expressway and from the southbound lanes to eastbound Sendai-Hokubu Road , this has since been fixed . The toll road was damaged on 11 March 2011 during the 2011 Tōhoku earthquake and tsunami . Inspections after the disaster showed that the road had sunken in places due to soil liquefaction . The damage was repaired within the two weeks after the event
2011 Tōhoku earthquake and tsunami
2011 Tōhoku earthquake and tsunami
Sendai-Hokubu Road