Kurobe river is known as rampage river which flows fast in the steep and narrow slope.
Since the establishment of Otaka , our main works like flood protection project to protect the lives and property of people in the basin suffering from flood damage and for the power supply development by overcoming the harsh natural environment.
The thoughts of predecessors who challenged these are still taken over by us.
The development of social infrastructure has progressed and “ safety,security and comfort” has become common today. In other to protect the present status we are and we will play a big responsibility with our high technology both today and in the future. That’s OTAKA’S Pride

  1. Unazuki Fire Station Government Building Maintenance Construction (Main Building)
  2. 2016,Kokurobe Dani Landslide Prevention Dam and other Construction
  3. Ground Water Thermal Heap Pump Air Conditioning(detached house in Toyama)
  4. Water Heat Source Heat Pump Air Conditioner Using Self- Blowing Well (Ground Water)[Ikuji, Kurobe City]
  5. (日本語) 地下水・温泉熱併用ヒートポンプ空調【ジオパーク展示室】
  6. Birudani Regional Erosion Control( Steep Slope) Construction
  7. Maintenance and Repairment of Unazuki Bridge
  8. Construction of Shinetsu Headquarter Building (New Construction)
  9. Yosiwara River Bank Improvement ( No.143) Block Production Construction
  10. Kusurido ,Otozawa Area Embankment Reinforcement Construction
  11. Kuronagi Dani No.2 Downstream Landslide Prevention Dam Construction
  12. Kokurobe Dani No.2 Landslide Prevention Dam Construction
  13. Kurobe City Onsen Multipurpose Building (New Construction)
  14. Heat Pump Air Conditioning System Utilizing Groundwater’s Heat[ Otaka Construction Co.,Ltd]
  15. Kurobe City Government Administration Building ( New Construction)
  16. Urayama Interaction Center ( New Construction)
  17. Kurobe Dani Material Transportation Road Construction
  18. Kamiiino Embankment Construction
  19. Katakai River Embankment Construction
  20. Public Square , Regional Railway Unazuki Onsen Station
  21. Non Sprinkling Snow Melting System , Utilizing Unused Hot Spring
  22. Kurobe River Landslide Prevention Dam Reconstruction
  23. Rinndou Betumata Soga Takesen Slope Protection Construction
  24. Yosiwara Detached Breakwater Block Production Construction
  25. Aimoto Tokodone Waterways Repairment
  26. Interaction Plaza ( Main Building)
  27. Ogyu Embankment Reinforcement Construction
  28. Kuronagi River Erosion Control Dam Reconstruction work
  29. Rinndou Betumata Soga Takesen Slope Construction( Part 3 and Part 4)
  30. Matuodani (Material Transportation Road) Restoration Afforestation Construction
  31. Community Development Business Utilizing Renewable Energy