On March 29, 2012, the Hadano Construction Office of the Central Nippon Expressway Company Limited Tokyo Regional Head Office (Hadano City, Kanagawa Prefecture, Director, Hisashicho Sato), the Shin-Tomei Expwy Kanagawa Prefecture West Groundwater Countermeasures Committee (Chair: Imada Toru Tokyo Metropolitan University was held.
The committee deliberated on the surveys / examinations that have been conducted so far, future survey plans and conservation measures, etc. based on the status of groundwater and springs around the planned route when constructing the Shin-Tomei Expwy (west Kanagawa Prefecture). Was done.