Existing Drainage Ditch Renewal Method "W2R Method"

A drainage renewal method that has minimal impact on existing sidewalks, private land, and surrounding residents.

The "W2R Method" is a construction technique that involves cutting unnecessary parts of an existing drainage ditch with a specialized cutter called the "W2R Cutter" from the inside of the ditch, and then installing a precast concrete cover known as the "W2R Drainage Ditch Cover" to renew the ditch. The "W2R Cutter" can cut from the inside without damaging the ditch. It improves the so-called "three K's" (kiken - danger, kitanai - dirty, kitsui - tough) associated with traditional methods. The "W2R Drainage Ditch Cover" excels in workability, pedestrian safety, and drainage performance. Please feel free to consult us if you have any requests. 【Suitable Situations】 ■ When there are walls or similar structures close to the private land side, and there is a risk of damage during the demolition of the existing drainage ditch. ■ When there are many access points for stores, requiring construction to be completed in as short a time as possible. ■ When there are residential houses or stores close to the construction site, and there is a desire to minimize noise and dust issues during the demolition of the existing drainage ditch. ■ When the width of the sidewalk is narrow, and it is necessary to minimize the impact on pedestrians and cyclists during construction. *For more details, please download the PDF or feel free to contact us.

Road constructionRenovation and repair methods