コムテック List of Products and Services

We would like to introduce our GRP box girder bridge (VI method). Using the power of vacuum to inject resin into the glass fiber layer, we ensure that it permeates thoroughly to create a uniform and robust laminated material through the "VI method," manufacturing each part (deck, side panels, girders, bottom plates, and bridge panels). To prevent any degradation of the laminated material's strength due to influences such as ultraviolet rays, water, or temperature changes, the bridge body is completely painted, aiming for easy maintenance. 【Functional Characteristics of GRP Box Girder Bridge (VI Method)】 - Lightweight, allowing for consideration of using existing foundations - Long-term use with simple maintenance, enabling a reduction in maintenance costs - The shape of the mold can be designed, allowing for the creation of elegantly curved girder bridges *For more details, please refer to the PDF materials or feel free to contact us.

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We introduce bridges and walkways made of "FRP (Fiber Reinforced Plastic)," which excels in strength, lightweight properties, and corrosion resistance. The weight of FRP is about 1/4 that of steel, allowing for reduced foundation construction costs and transportation expenses. It can be manually transported and constructed in locations such as mountainous areas where construction machinery cannot be used. It is resistant to corrosion from rain, wind, and salt damage, demonstrating excellent durability even in harsh environments, contributing to reduced lifecycle costs. FRP bridges and walkways can also be effective against salt damage from coastal areas as well as salt damage caused by freezing agents! 【Four Features】 1. Reinforced with glass fibers and other materials, it is lighter and stronger compared to conventional structural materials. 2. Resistant to salt and moisture, it does not corrode. 3. Capable of suppressing degradation from UV rays and wind, it has good weather resistance. 4. Can be painted to match the surrounding colors, harmonizing with the natural environment. *You can view a catalog featuring numerous construction examples from the "Download" section.

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The weight of FRP (fiberglass reinforced plastic) is about 1/4 that of steel, making it lightweight and capable of reducing foundation construction costs and transportation expenses. It can be manually transported and installed in remote locations where heavy machinery cannot access. Additionally, it contributes to reducing lifecycle costs. It is resistant to corrosion from rain, wind, and salt damage, demonstrating excellent durability even in harsh environments, and can create pathways in various locations such as coastal areas, underwater, and deep in the mountains. 【Four Features】 1. Reinforced with fiberglass and other materials, it is lighter and stronger compared to conventional structural materials! 2. Resistant to salt damage and water, it does not corrode. 3. Capable of suppressing degradation from UV rays and wind, it has excellent weather resistance. 4. With options for surface coating and shape, it has good aesthetic appeal. *You can view a catalog featuring numerous construction examples from the "Download" section.

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The FRP BRIDGE is a bridge made of "FRP (Fiber Reinforced Plastic)" which excels in strength, lightweight properties, and corrosion resistance. Its weight is about 1/4 that of steel, allowing for reductions in foundation construction costs and transportation expenses. It can be manually transported and constructed in remote locations where heavy machinery cannot access. It is resistant to corrosion from rain, wind, and salt damage, demonstrating excellent durability even in harsh environments, contributing to reduced life cycle costs. 【Four Features】 1. It is lighter and stronger than conventional structural materials because it is reinforced with fiberglass and other materials. 2. It is resistant to salt damage and water, and does not corrode. 3. It has good weather resistance as it can suppress deterioration from ultraviolet rays and wind. 4. It has good aesthetic appeal as surface coatings and shapes can be selected. 【Construction Examples】 - Locations in harsh environments such as seaside areas - Locations where installation can only be done manually (areas inaccessible to heavy machinery or cranes) - Locations that prioritize aesthetics to harmonize with nature *You can view a catalog featuring numerous construction examples from the "Download" section.

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The "Pin Foundation" is a simple foundation construction method that provides support by driving pins at an angle through a fixed block. Since it does not require heavy machinery and large excavation work on the ground surface, it is effective for foundations in areas like forests where heavy machinery access is difficult. By increasing the embedment depth of the pins, it can also accommodate soft ground conditions such as marshy or sandy soils. 【Features】 ■ Suitable for foundations of small structures like boardwalks, Yatsuhashi bridges, and pavilions ■ No ground excavation required for heavy machinery access, making it environmentally friendly ■ Two types of construction methods available based on application ■ Registered with NETIS *You can view a catalog with numerous construction examples from the "Download" section.

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We would like to introduce the renovation case of the Yatsuhashi at Kurozaki Nagata Wetland Nature Park (Nagasaki City, Nagasaki Prefecture). Located in the northwestern coastal area of Nagasaki City, it is well-known as the best habitat for dragonflies in Japan. Due to the presence of dangerous areas caused by corrosion in the existing wooden Yatsuhashi, it has been renovated to improve accessibility and make it easier to stroll through. FRP materials, which are resistant to salt damage and humidity, have been used, and additional walking paths have been constructed to enhance the convenience for local residents. 【Renovation Case】 ■ Scale: Partial renovation and expansion of the Yatsuhashi ■ Materials Used - Structural Material: Imported wood → FRP - Floor Boards: Imported wood → FRP - Handrails: Pin foundation method (for the expanded section) Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloys, GRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce the renovation case of the entire boardwalk at "Banna Lake (Ishigaki City, Okinawa)." Banna Lake, located within the vast Banna Park, is a pond formed by accumulated mountain water. There was a wooden deck for observing lotus flowers and small creatures, but due to the harsh environment in Okinawa, it suffered from corrosion and required renovation. Durable and long-lasting FRP material was selected, and the floorboards were treated with a sand finish to prevent slipping caused by fallen leaves and moisture. 【Renovation Case】 ■ Scale: Entire boardwalk ■ Materials Used - Structural Material: Bongo wood → FRP - Floorboards: Bongo wood → FRP - Handrails: Bongo wood → FRP Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a renovation case of the "Kirishima Mountain Water Management Bridge - Tenkei Bridge (Kirishima City, Kagoshima Prefecture)." Located behind Kirishima Shrine, this gorge is stunning with fresh greenery in spring and beautiful autumn leaves. After 30 years since its construction, renovations were carried out due to aging and the need for improved convenience. FRP (Fiber Reinforced Plastic) was used for the bridge deck and beams due to its lightweight and high durability. 【Renovation Case】 ■ Scale: Suspension Bridge (Width 1.0m × Length 27.4m) ■ Materials Used - Structural Material: Cedar → FRP - Decking: Cedar → FRP - Handrail: Wire Rope → Wire Rope + Nylon Net Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a renovation case of the "Okinawa Prefectural Comprehensive Sports Park Connecting Bridge (Okinawa City, Okinawa Prefecture)." The handrail section of the bridge spanning the pond within the Okinawa Prefectural Comprehensive Sports Park had corroded, necessitating replacement work. Among various material comparisons, FRP (Fiber Reinforced Plastic) was chosen for its high durability against UV rays and salt damage, allowing for long-term use. It blends well with the surrounding landscape and has become a beloved new bridge. 【Renovation Case】 ■ Renovation Details: Bridge Wooden Handrail Section ■ Materials Used ・Handrail: Bongoshi Wood → FRP Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a renovation case of the "Iwaya Park Heian Bridge (Minamikyushu City, Kagoshima Prefecture)." This is a replacement construction of a wooden bridge spanning the Manose River that flows through the park. There were several dangerous areas due to wood decay, and while repairs and replacements were considered, a lightweight FRP bridge was adopted, which places less burden on the foundation and allows for long-term use. 【Renovation Case】 ■ Renovation Details: Truss Bridge (Width 2.0m × Length 36.0m [2 spans]) ■ Materials Used - Structural Material: Cedar Laminated Wood → FRP VI Box Girder - Decking: Cedar → FRP - Handrail: Cedar → FRP Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce the case of the wooden path renovation at "Banna Park Hotaru Falls Stairs (Ishigaki City, Okinawa)." Banna Park, located at an elevation of 230 meters on Mount Banna, is a nature-rich park about a 10-minute drive from the city center. It is known as a famous spot for fireflies dancing in early summer. The observation path leading to the waterfall, where fireflies can be observed, had deteriorated due to the high temperature and humidity of the forest, prompting the renovation. FRP materials, which can be used for a long time in harsh environments, were selected. 【Renovation Case】 ■ Renovation Details: Entire wooden path ■ Materials Used - Structural Material: Bongo wood → FRP - Floor Boards: Bongo wood → FRP - Handrails: Bongo wood → FRP Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloy, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a renovation case of three steel bridges at "Sendan Taki Falls (Yatsushiro City, Kumamoto Prefecture)." These bridges span a walking path that circles around a famous waterfall with a drop of 70 meters, located deep within the mountains of Gokasou. Due to the harsh climate, corrosion had progressed, leading to a complete renovation. Access to the construction site was challenging due to narrow road widths and significant elevation differences, preventing the entry of construction vehicles and heavy machinery. As a result, manual transportation of materials and construction was required. Additionally, to minimize maintenance, FRP pull-out materials were used. To address the slippery floor surface caused by accumulated sediment and fallen leaves, along with the splashing water from the falls, grating floor panels were installed, enhancing the excitement of crossing the bridge. 【Renovation Case】 ■ Renovation Details: Three steel bridges (Width: 1.5m × Length: 16.3m, etc.) ■ Materials Used: - Structural Material: Steel → FRP - Floor Panels: Steel → FRP - Handrails: Steel → FRP Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a renovation case of the "Hiji Otaki Suspension Bridge (Kunigami Village, Okinawa Prefecture)." This suspension bridge leads to the largest waterfall on Okinawa Island, which has a drop of about 26 meters and is surrounded by a deep subtropical forest. Corrosion of components made from foreign wood, except for the tower columns and cables, has partially surfaced, necessitating renovation work. All wooden parts have been replaced with corrosion-resistant FRP materials, resulting in a structure that can be used for a long time. 【Renovation Case】 ■ Renovation Details: Suspension Bridge (Width 1.5m × Length 50.0m) ■ Materials Used - Structural Material: Ipe Wood → FRP - Decking: Bongoshi Wood → FRP - Handrail: Bongoshi Wood → FRP Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a case of renovation for the girder bridge in "Eda Funayama Kofun Park (Wamizu Town, Kumamoto Prefecture)." This pedestrian bridge is located within a park famous for the ancient burial mound where the first known example of kanji, the large sword, was excavated. The bridge, which was made of foreign timber, was renovated due to aging. The main girders were replaced with steel materials that have been hot-dip galvanized, and the flooring was replaced with cedar wood. It has been designed for long-term use and easy maintenance. 【Renovation Case】 ■ Renovation Details: Girder Bridge (Width 2.5m × Length 14.5m) ■ Materials Used - Structural Material: Bongo wood → Steel girders - Flooring: Bongo wood → Cedar wood - Handrails: Teak wood → Reused Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a renovation case of the "Nanayama Truss Bridge" (Karatsu City, Saga Prefecture), which was constructed using foreign timber along a walking course dotted with seven waterfalls and pools. Corrosion was observed throughout the timber, and reinforcement work was carried out considering both aesthetics and structural integrity. Boron-based insect and decay prevention agents (Impel Rod) were embedded in the corroded areas of the timber, and a protective wood coating was applied over the entire surface. Additionally, the main girder was reinforced with steel to enhance safety. 【Renovation Case】 ■ Renovation Details: Truss Bridge (Width: 2.5m × Length: 29.0m) ■ Materials Used - Structural Material: Bongoshi wood → Steel - Decking: Bongoshi wood → Repaired and reused - Handrail: Bongoshi wood → Repaired and reused Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce the renovation case of the entire wooden path and truss bridge at "Banna Park (Ishigaki City, Okinawa)." This park, located at the foot of Mount Banna, features a vast area filled with diverse subtropical plants and the only natural spring pond on Ishigaki Island, surrounded by walking paths. Due to high temperatures and humidity, the existing wooden paths and bridges had deteriorated. For the material selection in the renovation work, FRP (Fiber Reinforced Plastic) was chosen for its excellent corrosion resistance and salt damage resistance. 【Renovation Case】 ■ Renovation Details: Entire wooden path and truss bridge ■ Materials Used - Structural Material: Bongo wood → FRP - Decking: Bongo wood → FRP - Handrails: Bongo wood → FRP - Foundation: Pin foundation method (partially) Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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We would like to introduce a case of renovation of the walking path at "Oishi Park (Naha City, Okinawa)." Due to the wooden stairs beginning to rot after a few years, they were renovated to durable, rot-resistant FRP stairs. Considering universal design, the renovation includes wide handrails and non-slip flooring materials. The foundation utilizes the existing concrete independent foundation, with new pin foundation bases added only where necessary. 【Renovation Case】 ■ Renovation Details: Entire wooden path ■ Materials Used - Structural Material: Purple Heart → FRP - Flooring: Ipe → FRP - Handrail: Yellow Balau → FRP - Foundation: Pin foundation method (partially) Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloy, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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Places where other foundation methods are difficult We will introduce examples of the pin foundation method. Due to weak ground, there are sites where foundation work becomes extensive, or sites such as ponds and canals where draining water incurs significant costs, or sites where transporting materials is very labor-intensive. In such cases, the lightweight pin foundation method, which can be constructed manually, is optimal. Depending on the case, it is also possible to significantly reduce the cost of foundation work. [Examples] ■ National Okinawa Memorial Park Ocean Expo Park (Okinawa Prefecture) ■ Structure: Effective width 2.0m, column pitch 3.0m ■ Materials used - Railing: FRP - Floor slab: FRP - Structural materials: Steel, FRP ■ Foundation type: DP-75, DP-100 *For more details, please refer to the catalog or feel free to contact us.

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A place to enjoy flowers such as cherry blossoms and plum blossoms. Here is an example of the pin foundation construction method. Even if you want to enjoy flowers like cherry blossoms and plum blossoms up close, when many people approach the trees, they can compact the soil, which may cause the trees to wither. When creating viewing decks or boardwalks, the pin foundation method does not risk damaging the tree roots or disturbing the soil. 【Case Study】 ■ The Great Cherry Blossom of Isshikiyama (Kumamoto Prefecture) ■ Structure: Effective width 2.7m, post spacing 2.5m ■ Materials used - Railing: Ipe wood - Decking: Ipe wood - Structural materials: Steel ■ Foundation type: DP-M, SP *For more details, please refer to the catalog or feel free to contact us.

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Locations where it is difficult to install a standard foundation, such as sandy ground, are introduced with examples of the pin foundation method. When installing a standard concrete foundation, excavation of the ground surface is necessary. However, in sandy areas, even if excavation is performed, the sand will flow away, requiring a significantly larger excavation area compared to the size of the concrete foundation. In the case of the pin foundation method, it is very easy to install even on sandy ground, as it only involves driving pins through a stabilization block. 【Example】 ■ Kushira Town Nakayama Pond Park (Kagoshima Prefecture) ■ Structure: Effective width 1.5m, column pitch 3.0m ■ Materials used ・Railing: Jatoba wood ・Flooring: Ipe wood ・Structural materials: Bongoshi wood, Angelim wood ■ Foundation type: SP *For more details, please refer to the catalog or feel free to contact us.

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Places where water cannot be drained We will introduce examples of the pin foundation construction method. In conventional methods, foundation work could not be done without draining water from wetlands or lakes, but with the pin foundation method, underwater construction can be carried out by divers in the existing state. 【Case Study】 ■ Chigoike Park (Miyazaki Prefecture) ■ Structure: Effective width 2.5m, pillar pitch 2.0m ■ Materials Used - Railing: Aluminum, cedar - Floorboards: Cedar - Structural materials: Aluminum alloy, greenheart wood ■ Foundation Type: DP-100 *For more details, please refer to the catalog or feel free to contact us.

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Examples of the pin foundation method in areas where conventional foundations are difficult to install, such as wetlands. In soft ground areas like wetlands or lake regions, traditional concrete foundations may not be suitable, but the pin foundation method allows for very deep pin embedment, making it possible to accommodate such weak ground. Additionally, since there is no need for concrete pouring, it can be easily constructed even when water is present on the surface. 【Case Study】 ■ Hibikinada Biotope (Fukuoka Prefecture) ■ Structure: Effective width 1.5m, column pitch 3.0m ■ Materials Used ・Railing: FRP ・Decking: Recycled wood ・Structural material: FRP ■ Foundation Type: DP-75, SP *For more details, please refer to the catalog or feel free to contact us.

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Introducing examples of the pin foundation method in locations where it is difficult to install a standard foundation on steep slopes. In typical concrete foundations, the weight can lead to sliding issues on steep slopes, resulting in large-scale foundation work. However, with the pin foundation method, it is possible to create a deep embedment by using longer driven pins, allowing for effective foundations to be easily constructed even on steep slopes. 【Case Study】 ■ Nishikaibashi Park (Nagasaki Prefecture) ■ Structure: Effective width 2.0m, column pitch 1.5m to 2.0m ■ Materials Used ・Railing: Ipe wood, Jatoba wood ・Decking: Ipe wood ・Structural materials: Aluminum alloy, Angelim wood, Ipe wood ■ Foundation Type: DP-M For more details, please refer to the catalog or feel free to contact us.

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We introduce "Hirado Port" in Nagasaki Prefecture as an example of the installation of "FRP handrails and fall prevention fences." This handrail is installed along the coastal promenade leading to the ferry terminal at Hirado Port. FRP materials, which are strong and resistant to salt damage, are used because waves can splash over during strong winds. 【Installation Example】 ■ Nagasaki Prefecture ■ Installed in March 2016 ■ H1.1m × L95.17m * For more details, please refer to the catalog or feel free to contact us.

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We introduce a construction example of the "FRP Stair Deck" at Yahija Beach on Aguni Island in Okinawa Prefecture. This island is located about 60 km east of Okinawa Main Island, and we have developed a staircase leading to the famous Yahija Beach on the island. We used lightweight, high-strength FRP material that is highly resistant to salt damage, capable of withstanding constant strong winds! Additionally, it was constructed using a pin foundation method, allowing for installation without affecting the existing terrain. 【Construction Example】 ■ Okinawa Prefecture ■ Construction completed in March 2015 ■ W1.5m × L106.95m *For more details, please refer to the catalog or feel free to contact us.

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We introduce the "Itsuki Otaki Natural Forest Park" in Kumamoto Prefecture as an example of the installation of the FRP boardwalk. A new walking path has been constructed to overlook the magnificent 35-meter waterfall, surrounded by a natural forest with trees over 100 years old. The area around the waterfall is constantly splashed with mist, and since all materials had to be transported manually over a distance of approximately 800 meters one way, lightweight and highly durable FRP was chosen. 【Installation Example】 ■ Kumamoto Prefecture ■ Installed in March 2015 ■ W0.78m × L19.84m * For more details, please refer to the catalog or feel free to contact us.

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We introduce "Raizan River" in Fukuoka Prefecture as an example of the construction of the "FRP Boardwalk." It is a waterfront deck located in a brackish water area in Maebaru City, Fukuoka Prefecture. Since rare plants inhabit the area, we selected materials to ensure sunlight reaches beneath the deck, and because it is a brackish water area, we chose materials to minimize buoyancy and prevent the structure from floating. As a result, grating panels made of FRP pull-out materials, which are excellent in salt damage resistance and corrosion resistance, were adopted. 【Construction Example】 ■ Fukuoka Prefecture ■ W1.5m × L13.8m *For more details, please refer to the catalog or feel free to contact us.

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We would like to introduce the "Kurosaki Nagata Wetland Nature Park" in Nagasaki Prefecture as an example of the construction of the "FRP Boardwalk." It is located on the northwest coast of Nagasaki City and is well-known as the best habitat for dragonflies in Japan. Due to the presence of dangerous areas caused by corrosion in the existing wooden Yatsuhashi, it has been renovated to improve accessibility and make it easier to stroll. FRP materials, which are resistant to salt damage and humidity, have been used, and additional walking paths have been constructed to enhance the convenience for local residents. 【Construction Example】 ■ Nagasaki Prefecture ■ Construction completed in February 2016 ■ W1.5m × L13.0・46.5・51.6m *For more details, please refer to the catalog or feel free to contact us.

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We would like to introduce the "Minakan Final Disposal Site" in Kumamoto Prefecture as an example of the installation of the FRP boardwalk. In response to the inertia of the Kumamoto Prefecture Minakan Town industrial waste final disposal site, a boardwalk was developed to allow for walking around the ponds in the surrounding area. FRP materials that are resistant to ultraviolet rays and moisture were selected with consideration for the prefecture's water environment, and a substructure and floorboards were adopted. 【Installation Example】 ■ Kumamoto Prefecture ■ Installed in September 2015 ■ W4.0m × L12.75m ■ W2.0m × L18.0m ■ W3.0m × L6.0m * For more details, please refer to the catalog or feel free to contact us.

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We introduce "Hiji Otaki" in Okinawa Prefecture as an example of the construction of the "FRP Boardwalk." This is a walkway leading to one of the few renowned waterfalls in Okinawa, located in Kunigami Village in the northern part of Okinawa Prefecture. Due to the consistently high temperature and humidity, materials were selected with a focus on durability and resistance to salt damage, resulting in the use of FRP extruded materials. 【Construction Example】 ■ Okinawa Prefecture ■ Construction completed in March 2014 ■ W1.2m × L9.68 & 27.70m * For more details, please refer to the catalog or feel free to contact us.

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We introduce the "Chikugo Wide Area Park" in Fukuoka Prefecture as an example of the installation of the "FRP Boardwalk." It is a vast park located next to the Yabe River. Lightweight and high-strength FRP pull-out materials were used in this wetland area, where water constantly flows from below. 【Installation Example】 ■ Fukuoka Prefecture ■ Installed in January 2014 ■ W3.0m × L62.8m *For more details, please refer to the catalog or feel free to contact us.

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As an example of the installation of the "FRP Boardwalk," we introduce the "Kumejima Firefly Museum" in Okinawa Prefecture. It is an observation path for the natural monument "Kumejima Firefly." Improvements were made to the garden path, which was difficult to walk on during bad weather, while also protecting the fireflies and restricting access to areas outside the designated range. To prevent falls, ground cover has been installed, and the floorboards are made of dozer wood with faintly glowing lines. 【Installation Example】 ■ Okinawa Prefecture ■ Installed in March 2014 ■ W1.2m × L80.9m * For more details, please refer to the catalog or feel free to contact us.

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As an example of the installation of the "FRP Boardwalk," we introduce the "Okinawa Ocean Expo Park." In implementing universal design measures for the facilities within the park, FRP materials were selected considering their high resistance to salt damage and durability, as well as the simplification of management tasks such as maintenance and cleaning. Various FRP materials are used for the slope and stairs leading to Emerald Beach overlooking Ie Island, as well as for the access bridge and stair deck leading from the central gate to the Ocean Culture Museum and Planetarium. 【Installation Example】 ■Okinawa Prefecture ■Installed in February 2015 ■W2.0・4.0m × L234.6m ■W2.0m × L8.4m (truss bridge) *For more details, please refer to the catalog or feel free to contact us.

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We introduce "Todoroki Falls" in Okinawa Prefecture as an example of the installation of the "FRP Boardwalk." Located in Nago City, Okinawa Prefecture, this walking path allows visitors to stroll around a waterfall that has been famous among locals for many years. The surrounding area is a wetland, and FRP pull-out materials, which have high corrosion resistance against humidity and salt damage, have been selected. 【Installation Example】 ■Okinawa Prefecture ■Installed in March 2016 ■W1.5m × L52.59・24.67m *For more details, please refer to the catalog or feel free to contact us.

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As an example of the construction of the "GRP Boardwalk," we introduce the "Kuroshio no Mori Mangrove Park" in Kagoshima Prefecture. It is a walking path that has been developed to allow visitors to stroll through the famous mangrove park located in Amami City on Amami Oshima. The surrounding area is a wetland, and all work was required to be done manually. GRP pull-out materials, which excel in salt damage resistance and corrosion resistance, were selected from several types of materials. 【Construction Examples】 ■ Kagoshima Prefecture ■ W1.5m × L31.25m ■ W1.0m × L15.46m *For more details, please refer to the catalog or feel free to contact us.

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We introduce "Manko Park" in Okinawa Prefecture as an example of the construction of the "FRP Boardwalk." The walkway within Manko, registered as a Ramsar Convention wetland, allows for the observation of rare tree vegetation, waterfowl, fish, and crustaceans. Stairs, waiting areas, and observation decks that allow access to the wetland during low tide have been installed. Due to its brackish water environment, FRP materials that are resistant to salt damage and highly durable have been used for the structural components. 【Construction Example】 ■Okinawa Prefecture ■W1.2･0.9m × L291m ■W3.4m × L3.4m (Birdwatching Deck) *For more details, please refer to the catalog or feel free to contact us.

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We introduce "Urasoe Great Park" in Okinawa Prefecture as an example of the construction of the "FRP Boardwalk." Considering durability, vandalism prevention, and ease of management for the walking paths utilizing the hilly terrain with remaining natural forests, FRP material was selected. Measures have been taken to enhance walkability, such as clearly defining the steps of the stairs and installing handrails. 【Construction Example】 ■Okinawa Prefecture ■Construction completed in March 2015 ■W2.0m × L88.8m ■W8.0m × L8.0m (Observation Deck) *For more details, please refer to the catalog or feel free to contact us.

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As an example of the installation of the "FRP Boardwalk," we introduce the "Sata Misaki Observation Park (Path No. 9)" in Kagoshima Prefecture. This is a slope leading to the observation deck at the southernmost tip of Kyushu Island, located within the Kirishima-Kinkowan National Park. It features an elevated zigzag shape, allowing visitors to change their viewpoint while enjoying distant views of the Pacific Ocean, Kinko Bay, the surrounding habitat of cycad plants, Biro Island, and Mount Kaimon. Due to its coastal location, FRP, a material that is resistant to salt damage and has a color similar to wood, was chosen for its excellent aesthetic qualities in a natural environment. Additionally, since the area is inaccessible to vehicles, a pin foundation that can be constructed manually without heavy machinery was adopted for the foundation. 【Overview】 　　■ Sata Misaki Observation Park (Path No. 9) 　　■ Kagoshima Prefecture, constructed in March 2016 　　■ W1.5m x L165.7m 　　■ Handrails and flooring: Cedar wood 　　■ Structure: FRP (pultruded material)

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As an example of the construction of the "FRP Observation Deck," we introduce the "Yamada Green Space Eco Play Park" in Fukuoka Prefecture. It is a viewpoint at the summit that offers a panoramic view of Kitakyushu City. The existing wooden facilities had deteriorated and required renovation. Due to the need for manual transportation to the summit, lightweight and high-strength FRP was adopted. 【Overview】 ■ Yamada Green Space Eco Play Park ■ Fukuoka Prefecture, constructed in February 2015 ■ W2.15m x L5m ■ Railing, floorboards, structure: FRP (pultruded material)

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As an example of the installation of the "FRP Boardwalk," we introduce the "Wansaka Oura Park Mangrove Road" in Okinawa Prefecture. This observation path is located within Oura Bay, which has been designated as one of Japan's Important Wetlands 500 by the Ministry of the Environment. Visitors can see various species of wildlife in the rich mangrove forest and along the lake, depending on the tides. Due to its location in a brackish water area, FRP materials that are resistant to salt damage were used. They are also resistant to corrosion and easy to clean and maintain. In addition, there are many other installation examples, such as the Urasoe Great Park (No. 6 Walking Path) and the root protection deck for the Sakishima Suo tree (designated natural monument of Higashi Village). 【Overview】 ■ Wansaka Oura Park Mangrove Road ■ Okinawa Prefecture, constructed in March 2016 ■ W1.5・1.2m × L725.3m ■ Handrails: FRP extruded material ■ Decking: FRP extruded material ■ Structural materials: FRP extruded material For more details, please refer to the catalog or feel free to contact us.

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As an example of the installation of the "FRP Stair Deck," we introduce Nakagusuku Park (Pathway No. 2) in Okinawa Prefecture. Located at an elevation of 150 meters, this park is designated as one of Japan's 100 Historic Castles and is a scenic spot where you can overlook the Pacific Ocean and more. To allow everyone to stroll through the entire park, plans were made for walkways and observation decks. Given its coastal location and strong ultraviolet rays, durable and salt-resistant FRP materials were selected. 【Overview】 ■ Nakagusuku Park (Pathway No. 2) ■ Okinawa Prefecture, June 2016 Installation ■ W2.0m x L87.7m ■ W6.8m x L10.4m (Observation Deck) ■ Railing, Floorboards, Structure: FRP (Pultruded Material)

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We would like to introduce a renovation case of the "Banna Park Firefly Waterfall Observation Deck (Ishigaki City, Okinawa Prefecture)." Within Banna Park, the southernmost forest park in Japan, there is a rare waterfall found on Ishigaki Island, where fireflies can be seen dancing in early summer. The observation deck along the firefly observation path became unusable due to the decay of the wooden components, and for the renovation, corrosion-resistant FRP materials that can withstand the hot and humid environment were adopted. 【Renovation Case】 ■ Renovation Details: Observation Deck Floorboards and Handrails ■ Materials Used ・Structural Material: Bongoshi Wood → FRP ・Floorboards: Bongoshi Wood → FRP ・Handrails: Bongoshi Wood → FRP Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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This is a renovation case of the Yatsuhashi bridge established along the walking path of the "Takase Urakawa Waterside Green Space (Tama City, Kumamoto Prefecture)." Renovation work was carried out due to the corrosion of the wooden parts of the existing Yatsuhashi. The foundation and main structural materials were reused, and FRP was chosen for its ease of walking and high durability. 【Renovation Case】 ■ Renovation Details: Entire Yatsuhashi ■ Materials Used ・Structural Materials: Steel, Bongoshi → Steel (reused) ・Flooring: Cedar, Bongoshi → FRP ・Handrails: Cedar, Bongoshi → FRP Our company is capable of making appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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This is a renovation case of wooden stairs established along the walking path in the naturally rich "Sueyoshi Park (Naha City, Okinawa)." The stairs are located in a park surrounded by the town of Shuri, providing a place for citizens to relax and stroll in a nature-rich environment. Surrounded by dense trees, FRP pull-out materials were used to address the high temperature and humidity conditions. 【Renovation Case】 ■ Renovation Details: Entire wooden path ■ Materials Used: - Structural materials, floorboards, handrails: Bongoshi wood → FRP Our company is capable of providing appropriate renovation proposals by combining various materials such as steel, aluminum alloys, FRP, recycled wood, and natural wood. For more details, please refer to our catalog or feel free to contact us.

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The "FRP BRIDGE" is a bridge made using FRP materials that excel in lightweight and durability. As one example of a side road bridge constructed to secure a pedestrian path on a bridge without sidewalks, we introduce the construction case of the "Minamata Old Fishing Boat Iron Works Site Side Road Bridge (Kumamoto Prefecture)." 【Construction Case】 ■ Structure: Bridge length (12.0mL × 2.0mW) ■ Materials Used ・ Railing: FRP (pulled material) ・ Deck: FRP (vacuum infusion method) ・ Structural material: FRP (vacuum infusion method) In addition to this, we have accumulated construction achievements in numerous projects, such as the "Onojo City Kawakubo Side Road Bridge (Fukuoka Prefecture)." For more details, please refer to the catalog or feel free to contact us.

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