Akita Expressway (Yuda IC to Yamauchi PA)
Progress of the 4-lane expansion project

Construction area

Current progress

Current progress
Explanation of progress status

  • 1. Kurosawa Bridge

    Kurosawa Bridge

    Taken in October 2025

  • 2. Kurosawa River Bridge

    Kurosawagawa Bridge

    Taken in October 2025

  • 3. Yamauchi Tunnel

    Yamauchi Tunnel

    Taken in October 2025

Past construction photos can be found here.

March 2025

  • 1. Kurosawa Bridge

    Kurosawa Bridge

    Taken in March 2025

  • 2. Yamauchi-Kurosawa District Earthwork Department

    Yamauchi Kurosawa District Civil Engineering Department

    Taken in March 2025

  • 3. Kurosawa River Bridge

    Kurosawagawa Bridge

    Taken in March 2025

  • 4. Yamauchi Tunnel

    Yamauchi Tunnel

    Taken in March 2025

October 2024

  • 1. Kurosawa Bridge

    Kurosawa Bridge

    Taken in October 2024

  • 2. Yamauchi-Kurosawa District Earthwork Department

    Yamauchi Kurosawa District Civil Engineering Department

    Taken in October 2024

  • 3. Kurosawa River Bridge

    Kurosawagawa Bridge

    Taken in October 2024

  • 4. Yamauchi Tunnel

    Yamauchi Tunnel

    Taken in October 2024