Notice

令和8年5月

• 工事進捗状況 2026年5月27日（水）

  Construction progress has been updated (as of May 2026).

令和8年4月

• 工事進捗状況 2026年4月23日（木）

  Construction progress status has been updated (as of April 2026)

March 2020

• news Tuesday, March 3, 2026

  E8北陸自動車道 長岡西大積（ながおかにしおおづみ）スマートICの開通見通しについて

December 2020

• Community interaction Monday, December 8, 2025

  A safety prayer ceremony was held for the construction of the Ryugatake Tunnel Ban-Etsu Expressway

• Community interaction Monday, December 8, 2025

  We held a PR event for the 4-lane expansion project at the roadside station "Aga no Sato" Agarina.

• Regional Exchange Monday, December 1, 2025

  We held an event at the roadside station "Aga no Sato" Agarina.

• Regional Exchange Monday, December 1, 2025

  I participated in the Tsugawa Fox wedding procession event.

• Regional Exchange Monday, December 1, 2025

  [A first for the Niigata four-lane project] A completion ceremony was held for the Hoshuzan Tunnel

• others Monday, December 1, 2025

  Niigata Area Expressway Four-Lane Project Website Launched