FY2016 Tohoku Regional Development Bureau, Bureau Chief Award for Excellence in Construction

Orderer Ministry of Land, Infrastructure, Transport and Tourism
Completion 2017
Structure and scale NATM method, excavation cross-section: 109m²; tunnel length: 1,985m
Location Iwate Prefecture
Application Road tunnel

As part of the Sanriku Jukan Expressway, four large and small tunnels (Yagumo 1, 2, 3, and Mizuumi Tunnel) on an approximately 2.8km section, a large embankment and reinforced earth retaining wall, and the 184m Mizuumi viaduct upper construction Bridge 1 of the National Road 45 Kamaishi Yamada Road (separate name of “Road for Life”) with a total length of 23km between Kasshi Town, Kamaishi City and Funakoshi, Yamada Town, Shimohei County in Iwate Prefecture.