Solving road flooding! It also demonstrates its effectiveness against sudden heavy rain.
To respond to flooding caused by guerrilla rainstorms and concentrated heavy rains, we have installed drainage holes in the green stone section to enhance drainage performance. The crown cover minimizes the inflow of fallen leaves and debris. Additionally, by replacing only the damaged upper parts, we shorten the construction period, reduce waste, and use fewer materials through the "Neplus method (drainage repair)," which also accommodates special and integrated drainage systems. The universal design grating prevents bicycle wheels from getting stuck or falling in, supporting safe riding. 【Features】 ■ L-shaped drainage systems that prevent road surface flooding from typhoons and guerrilla rainstorms ■ Enhanced drainage performance of the L-shaped green stone section ■ Compatible with the Neplus method (drainage repair) ■ Supports safe cycling "Crown Support" is a product that combines L-shaped rainwater drainage systems and street drainage systems made of concrete secondary products with universal design grating for bicycle path measures. It can also be constructed using the Neplus method for drainage repair work. *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Other Features】 ■ Leaf Prevention ■ Newspaper and Magazine Prevention ■ Universal Compatibility *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
[Uses] ■ Fallen leaves, flooding, guerrilla rainstorms, rainwater basin renovations L-shaped catch basin repairs, L-shaped edge block repair measures ■ Newspaper and magazine measures ■ Bicycle path measures *For more details, please refer to the PDF document or feel free to contact us.
Detailed information
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Ministry of Land, Infrastructure, Transport and Tourism L-Type Type 1: 270×650(665)×700 Curb height (h1) 150, apron width 485(500), length 700 Type 2: 320×700×700 Curb height (h1) 200, apron width 500, length 700
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Street drainage catch basin curb block 155 Curb block 155: 270×665×600 Curb height (h1): 150, apron width: 500, length: 600 L-shaped drainage catch basin curb block 300: 220×500×600 Curb height (h1): 100, apron width: 400, length: 600
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Image of flooding due to clogging Even if leaves and debris cause clogging, stable drainage capacity is maintained, and the crown cover minimizes the inflow of leaves and debris other than rainwater.
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Crown Assistance Water Collection Performance Test An L-shaped water collection basin was installed on the downstream side of an experimental facility measuring 1.0 m wide by 2.0 m long. Water was drained at a rate of 5.6 liters per second along with fallen leaves, causing clogging of the flat grating due to the leaves. A performance test of the water collection capability of the vertical crown assistance cover was conducted.
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Kansuke water collection performance test confirmed the drainage amount. We drained water at a rate of 5.6 liters per second along with fallen leaves.
Line up（3）
| Model number | overview |
|---|---|
| Ministry of Land, Infrastructure, Transport and Tourism L-shaped curb block | 320×700×700 |
| Street drainage collection basin curb block 155 | 270×665×600 |
| L-shaped collection basin 300 | 220×500×600 |
catalog（2）
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![[Construction Example] Leaf Fall Flood Prevention Cover "Kansuke"](https://image.www.ipros.com/public/catalog/image_generated/01/c21/422787/422787_IPROS6479396422457862974_1.jpg?w=120&h=170)
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Company information
Kitamura Concrete Industry Co., Ltd. has been manufacturing concrete secondary products for over 50 years, with factories located throughout the Kanto region. We have produced and sold various concrete secondary products, including multi-slits, Eva halls, and more. We promote products that are resilient to flooding, provide aesthetically pleasing products, and procure materials with an awareness of ecology. We will continue to create safe and secure living environments.