“Flood Prevention Month” Initiatives: Participating in Comprehensive Flood Prevention Drills in 11 Regions Nationwide
Contributing to the improvement of the community's flood preparedness through the provision of disaster prevention products
2026.04.27
Taiyo Kogyo Co., Ltd. (Tokyo Headquarters: Setagaya-ku, Tokyo; Osaka Headquarters: Yodogawa-ku, Osaka; President: Yuki Nomura), a company specializing in large-scale membrane structures (tent structures) as well as civil engineering and logistics materials, has responded to a request from the River Techno Research Association®(Setagaya Ward, Tokyo; Chairman: Katsumi Seki), is participating in comprehensive flood control drills being held in 11 regions nationwide in conjunction with Flood Control Month (May 1–31; June in Hokkaido).The company is providing disaster prevention products such as the triangular water bag “Delta Tube®,” the hybrid air tent “Mac Quick Shelter®,” and the prefabricated temporary water barrier “Delta Panel” to support the exercises aimed at strengthening flood control systems in each region.
Flood Prevention Month
The Ministry of Land, Infrastructure, Transport and Tourism has designated May (June in Hokkaido) of each year as “Flood Prevention Month.” As part of efforts to prevent and mitigate disasters, the goal is to help every citizen deepen their understanding of the significance and importance of flood prevention as the rainy season and typhoon season approach.Every year, the national government, prefectures, and flood control management organizations (such as municipalities) collaborate to conduct flood control drills, including comprehensive flood control exercises.
Portable Special Seawall “Delta Tube® (Triangular Sandbag)”
This is a long, triangular bag made from highly waterproof material. It is stretched out and laid on top of the embankment, and water is injected into it to prevent water from overflowing the embankment.As an alternative to traditional sandbags, it is lightweight, can be folded compactly for storage and transport, and can be set up quickly. It also provides effective water containment to prevent overtopping and flooding, while being environmentally friendly and resource-efficient.
Hybrid Air Tent “Mac Quick Shelter®”
The Mac Quick Shelter® is a hybrid air tent that can be set up quickly and easily during emergencies and disasters. It can be assembled by four women in 10 to 15 minutes and demonstrates excellent responsiveness for a wide range of applications, including disaster response headquarters and medical aid stations.It has a proven track record of over 3,200 deployments, including for medical purposes during disasters such as the Great East Japan Earthquake and the Reiwa 6 Noto Peninsula Earthquake.
"Delta Panel," a Modular, Simple Water Barrier
When a guerrilla downpour or similar event is expected to flood a building, this flood prevention tool guards the area where water enters with a strip of structurally stable triangular cross-sectional membrane structure to limit damage. Unlike conventional sandbags, there is no need to secure soil, fill the bags, or pile up the finished sandbags, and installation is completed simply by connecting and assembling them on site.
Reiwa 8 Comprehensive Flood Control Drills to Be Held in 11 Regions Nationwide
| Date | Exercise Name | Location |
| Saturday, May 16 | 74th Tone River Basin Joint Comprehensive Flood Control Drill | Tone River, Tone River Basin Near Akaishi, Chiyoda Town, Ora District, Gunma Prefecture |
| Saturday, May 16 | Reiwa 8 Yasu River Comprehensive Flood Control Drill | Yasu River, Yodo River Basin Right bank riverbed of the Yasu River, near Miyake, Yasu City, Shiga Prefecture |
| Sunday, May 17 | Reiwa 8 Honmyo River Comprehensive Flood Control Drill | Honmyo River, part of the Honmyo River system Near Hachiten-cho, Isahaya City, Nagasaki Prefecture |
| Saturday, May 23 | Reiwa 8 Ashida River Comprehensive Flood Control Drill | Ashida River, Ashida River Basin Near Kusado, Fukuyama City, Hiroshima Prefecture |
| Saturday, May 23 | Reiwa 8 Osaka Prefecture Comprehensive Regional Disaster Prevention Drill | Yamato River, Yamato River Basin Near Kawakita, Fujiidera City, Osaka Prefecture |
| Sunday, May 24 | Reiwa 8 Fiscal Year Tokigawa Comprehensive Flood Control Drill | Tokigawa River, Tokigawa River Basin Near Tarumi-cho, Marugame City, Kagawa Prefecture |
| Sunday, May 24 | Gifu City Joint Flood Control Drill | Nagara River, Nagara River Basin Near Nagara-Yusou, Gifu City, Gifu Prefecture |
| Saturday, May 30 | Reiwa 8 Kurobe River Comprehensive Flood Control Drill | Mogami River, Mogami River Basin Near Shimoseki, Sakata City, Yamagata Prefecture |
| Sunday, May 31 | Reiwa 8 Fiscal Year: Comprehensive Flood Control Drill for the Lower Mogami River and Akagawa River | Mogami River, Mogami River Basin Near Shimoseki, Sakata City, Yamagata Prefecture |
| Sunday, May 31 | Reiwa 8 Fiscal Year: Lower Tenryu River Joint Comprehensive Flood Control Drill | Tenryu River, Tenryu River Basin Near Toyo-cho, Chuo Ward, Hamamatsu City, Shizuoka Prefecture |
| Saturday, June 6 | Reiwa 8 Fiscal Year: Comprehensive Flood Control Drill on the Ikushunbetsu River in the Ishikari River Basin | Ikushunbetsu River, Ishikari River Basin Near Kitamura Horotappu, Iwamizawa City, Hokkaido |
About Taiyo Kogyo's Disaster Prevention Products
At Taiyo Kogyo, we carry a wide variety of disaster prevention equipment—including a broad range of flood control equipment—for use in urban areas, along rivers, and in emergencies.
About the River Techno Research Group®
The River Techno Research Association® is a general incorporated association that was established in 2009 as a nonprofit organization. It brings together 21 private-sector companies collaborating with academic experts to develop, promote, and raise awareness of technologies that can be applied in a responsive and flexible manner to meet diverse societal needs related to river environments, disaster prevention, and disaster mitigation.The Society is engaged in the development of technologies it considers core to its mission, including portable levees; the River Techno Cone® for surveying and inspecting river levees; and methods for qualitatively reinforcing levees, such as the Relief Well Method, the Drain Method, and flood-control sheets.In addition, the research group has established the “Super River Guardian®” program and, in collaboration with local government agencies and various organizations, is actively engaged in activities such as managing river facilities and proposing disaster mitigation measures. http://rirt.or.jp/
About Taiyo Kogyo Corporation
Taiyo Kogyo is a leading company in the field of large-scale membrane structures, with a history spanning over 100 years. At the 1970 Japan World Exposition, the company achieved a world first by constructing a low-rise (height-restricted) pneumatic membrane structure for the U.S. Pavilion, in which the roof was supported solely by air pressure.Since then, the company has participated in large-scale projects around the world, including the construction of the membrane roof for the Tokyo Dome and the Millennium Dome in London (now known as The O2 Arena), one of the world’s largest dome structures. Furthermore, for the 2025 Osaka-Kansai World Expo, the company handled the design and construction of more than 20 pavilions, playing a key role in the creation of the Expo site.With membrane structure technology—which excels in cost-effectiveness, constructability, light transmission, and design—at the core of our operations, we have expanded our business into the fields of architecture, civil engineering, logistics, and the environment, thereby supporting safety and peace of mind in society.
Together with group companies such as TSP Taiyo Co., Ltd., which provides event consulting, and Actio Co., Ltd., which manages facility operations, we will continue to provide new value to society under the motto, “Softening the World. Warming the Future.”