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  1. Home
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  5. Gutters and U-shaped gutters
  6. Leaf fall flood prevention cover "Kansuke"

Leaf fall flood prevention cover "Kansuke"

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Rolled gutter connection for drainage catch basin.

last updated:Mar 04, 2026

ネプラス工法全国会 本部
ネプラス工法全国会 本部
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Solve clogging caused by fallen leaves with "Kanzuke"!

In conventional rolled gutter connection catch basins, the accumulation of fallen leaves obstructs the flow of water, making drainage impossible. The "Kansuke" rolled gutter connection catch basin directs drainage from the crown plate of the three-dimensional part, preventing surface flooding. By using the Neplus method for installation, replacement work can also be easily carried out.

    Gutters and U-shaped gutters
冠助ロールドガッター用集水桝_page-0001.jpg

Leaf fall flood prevention cover "Kansuke"

冠助ロールドガッター用集水桝_page-0001.jpg
冠助ロールドガッター用集水桝_page-0001.jpg
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basic information

800×800 square hole for T-25, standard mesh, fixed type. Other sizes are available. Please contact us for more details.

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Applications/Examples of results

This is a product that can be applied to catch basins connected to semicircular ditches called "rolled gutters" installed on highways and general roads.

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Cap support for rolled gutter connection drainage pit

Cap support for rolled gutter connection drainage pit

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Neplus construction method procedure

Neplus construction method procedure

TECHNICAL
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Case Studies of On-Site Cast-in-Place Gutters

Case Studies of On-Site Cast-in-Place Gutters

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Company information

ネプラス工法全国会

ネプラス工法全国会 本部

General contractors and subcontractors

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The Neplus Method National Association is an organization that promotes the expansion of the "Neplus Method" for the repair of the upper part of drainage ditches, provides technical support, manufactures and supplies products, and offers technical assistance to construction partners. The Neplus Method involves removing only the damaged upper part of the drainage ditch with a specialized cutting machine and installing new repair products to renew the ditch. The construction period is quick, allowing for immediate traffic reopening if about 10 meters are completed in a day. Additionally, it can be easily implemented even in ditches close to structures or underground installations without the need for excavation. We have handled numerous drainage repair projects to date. If you have any issues with drainage work, please feel free to contact us.

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