Last Updated： Aggregation Period:Sep 17, 2025～Oct 14, 2025
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Drop lid type U-shaped drainage ditch according to JISA5372 Appendix E recommended specifications E-2.
Type 1 is primarily installed on sidewalks. Type 3 is rarely adjacent to vehicles, and even if vehicles do pass by, it is installed parallel to the roadway in places where they would travel at low speeds, such as during temporary stops.
General-purpose pedestrian and vehicle boundary blocks are available! Narrow apron width pipe-type ditches.
The "Line Drainage Block - V Type 300" is a compact channel-type gutter that creates a safe and comfortable road space. It eliminates cross slope breaks, ensures flatness, and resolves steps and grooves that hinder passage. Additionally, the finely pitched independent slit design makes it difficult for bicycle tires entering at an angle to get stuck. 【Features】 ■ Improved safety for shoulder riding ■ Elimination of water puddles & suppression of water splashes ■ Compact with high workability ■ Reduction of traffic regulation area ■ Reduced risk of interference with underground installations *For more details, please refer to the PDF document or feel free to contact us.
A ditch that can properly set the drainage slope and form a vertical rectangular water flow section.
■It is possible to set the drainage slope appropriately and form a vertical rectangular water flow section. ■The structure is designed for a 25-ton vehicle. ■Due to the frame structure, the overall strength is balanced. ■To support product arrangement suitable for the site, the side wall height is standardized in 10 cm increments. ■A wide variety of types are available, including for fractional adjustments, corner cuts, support line installations, and crossings.
Upper lid type U-shaped drainage ditch according to JISA5372 Annex E recommended specifications E-2.
■Type 1: Primarily installed on sidewalks. ■Type 2: It is rare for vehicles to run adjacent to it, and even when they do, it will be installed parallel to the roadway in places where vehicles travel at low speeds, such as during temporary stops.
It is a circular drainage channel for road stormwater that has a small installation space and excellent economic efficiency.
The economy drainage channel "e-Suru" is a circular waterway for road rainwater drainage that enhances compact installation space and cost-effectiveness through the thinning and lightweight design of the product. There are three types: S-type for mounting, flat T-type for entry points, and R-type for entry points (buried specification). It is compatible with T-25 parallel loads for general vehicles. (It cannot be used for road crossings.) The catch basins and boundary blocks are specialized. 【Features】 ○ Box girder structure ○ Achieves thin and lightweight cross-section ○ Compact installation space and excellent cost-effectiveness ○ Dedicated boundary block installation requires no dry mortar and uses a bolt structure ○ NETIS registration number KK110014-A For more details, please contact us or download the catalog.
Introducing concrete products for free gradient side ditches [urban type].
Yotsuba Co., Ltd. is engaged in corporate activities that support the development of social infrastructure in Toyama Prefecture, focusing on the theme of "urban environmental creation and town development." We strive for superior product development and stable quality assurance and supply, ranging from exteriors to environmental products and precast concrete products. Our urban-type concrete products include four sizes of free-slope gutters: 250×300/400/500/600. The lengths are 2000mm, and the heights are 430/530/630/730mm, with reference weights of 286/332/433/489kg, respectively. For more details, please contact us or refer to our catalog.
Introducing reinforced concrete L-shaped gutters made of concrete products.
Yotsuba Co., Ltd. is engaged in corporate activities that support the development of social infrastructure in Toyama Prefecture, focusing on the theme of "urban environmental creation and town development." We strive for superior product development and stable quality assurance and supply, ranging from exteriors to environmental products and precast concrete products. For concrete products, we offer four types of reinforced concrete L-shaped drainage products: Type 1, with designations 250A, 250B, 300, and 350. The length is 600mm and the height is 155mm, with reference weights of 45kg, 56kg, 63kg, and 70kg, respectively. For more details, please contact us or refer to our catalog.
L-shaped drainage ditch according to JISA5372 Appendix E recommended specification E-4 and JISA5371 Appendix C recommended specification C-1.
■L-shaped drainage channel JISA5372 - Mainly used for mount-up types with a height of 100mm or less. ■L-shaped drainage channel JISA5371 - It is rare for vehicles to run adjacent to each other, and even if they do, it is in places where they travel at low speeds, such as temporary stops, and is installed parallel to the roadway.
【Mud Prevention Measures】Collect rainwater that has seeped into the ground into the drainage ditch and discharge it to the drainage facility.
The "FVP Series" is a drainage channel designed to accommodate heavy vehicles. It can be used in various locations such as roads, parking lots for general and heavy vehicles, around buildings, and on grounds. With a rich lineup ranging from 300 to 1000mm in 100m increments, it can also accommodate variable slopes by pouring inverted concrete. It not only collects rainwater and surface water through the slits in the cover but also quickly drains rainwater that has permeated the ground from the sides (Polacon surface) into the channel and to the drainage facilities. 【Features】 ■ Structure designed for heavy vehicles ■ Accommodates variable slopes ■ Rich lineup ■ Prevents mud *For more details, please refer to the PDF document or feel free to contact us.
