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  6. Maintenance and Repair: The 'Neplus Method' for Drainage Repair that Allows for Immediate Traffic Opening

Maintenance and Repair: The 'Neplus Method' for Drainage Repair that Allows for Immediate Traffic Opening

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last updated:Jan 26, 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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Immediate traffic opening! A drainage repair method that enhances road safety.

The aging of drainage ditches is a significant issue in improving road safety. Damaged ditches can lead to accidents involving pedestrians and vehicles, undermining the overall safety of the road. Additionally, repairing ditches incurs time and economic losses due to traffic regulations. The Neplus method was developed to address these challenges. 【Usage Scenarios】 - Roads with heavy traffic - Sidewalks with many pedestrians - Repair of aging drainage ditches - Urgent repairs of drainage ditches 【Effects of Implementation】 - Minimization of traffic impact through same-day reopening - Reduction of accident risk through upgrades to safer drainage ditches - Potential cost savings by reusing existing covers

    Renovation and repair methods
1201_neprs_560_560_1397626.png

Maintenance and Repair: The 'Neplus Method' for Drainage Repair that Allows for Immediate Traffic Opening

1201_neprs_560_560_1397626.png
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  • For details on the side ditch repair method "Neplus Method," click here.
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【Features】 - A drainage repair method that allows for immediate traffic reopening - Reuse of existing covers is possible (subject to conditions) - The upper part of the drainage can be upgraded to a more durable product - A variety of product options including bolt-fixed types and anti-slip patterns - Proven track record in roads, highways, airport and port facilities, railway facilities, factories, stores, etc. 【Our Strengths】 The Neplus Method National Association promotes the expansion of the Neplus Method, provides technical support, manufactures and supplies products, and offers technical assistance to construction partners. With extensive experience and reliable technology, we support our customers in drainage repairs.

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What is the Neplus method?

What is the Neplus method?

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Drainage Ditch Upper Renovation System "Neplus Method"

Drainage Ditch Upper Renovation System "Neplus Method"

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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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