In the Niigata area
Expressway
More convenient.
Four-lane road expansion project
~Introduction to our construction business~
Latest information
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工事進捗状況
Construction progress has been updated (as of May 2026).
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工事進捗状況
Construction progress status has been updated (as of April 2026)
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news
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
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Community interaction
A safety prayer ceremony was held for the construction of the Ryugatake Tunnel Ban-Etsu Expressway
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Community interaction
We held a PR event for the 4-lane expansion project at the roadside station "Aga no Sato" Agarina.
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Regional Exchange
We held an event at the roadside station "Aga no Sato" Agarina.
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Regional Exchange
I participated in the Tsugawa Fox wedding procession event.
*Created in 2022
Business overview and maintenance effect
Expected benefits of expanding the Niigata area to four lanes
Click here for details
Niigata area
Construction Project Map
Introduction of the four-lane road widening project and smart IC project in the Niigata area implemented by NEXCO EAST
Click here for details