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Culvert Product List and Ranking from 12 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Sep 24, 2025~Oct 21, 2025
This ranking is based on the number of page views on our site.

Culvert Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Sep 24, 2025~Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. 昭和コンクリート工業 Gifu//Building materials, supplies and fixtures
  2. 吉田セメント工業 Fukushima//Building materials, supplies and fixtures
  3. ミルコン Fukui//others
  4. 4 太洋コンクリート工業 Shizuoka//Building materials, supplies and fixtures
  5. 4 高村建材工業 Tokyo//Building materials, supplies and fixtures

Culvert Product ranking

Last Updated: Aggregation Period:Sep 24, 2025~Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Precast L-shaped retaining wall with fence foundation 'SL-F' 昭和コンクリート工業
  2. Precast L-shaped retaining wall with vehicle protection fence foundation 'SL-G' 昭和コンクリート工業
  3. SL retaining wall, SL, SL-N - L-shaped retaining wall for roads 昭和コンクリート工業
  4. 4 Yoshida Cement Industry Co., Ltd. L-Type Retaining Wall Comprehensive Catalog 吉田セメント工業
  5. 5 4-way large box culvert 昭和コンクリート工業

Culvert Product List

1~15 item / All 36 items

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Civil engineering products FX drainage ditch

Eliminate noise issues. Moreover, it's affordable.

Conventional roadside ditches have had significant issues with noise and chipping caused by the rattling of the covers during vehicle passage. The FX ditch solves this problem, being narrower even with the same water surface, which allows for an increase in sidewalk width. Additionally, its slim design can reduce excess leftover soil by 10%.

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Precast L-shaped retaining wall for roads "Hyper Road L-shaped Retaining Wall"

Economical precast L-shaped retaining walls for roads that allow you to choose the base plate length according to site conditions! Fence installation is also possible!

○ This is a precast L-shaped retaining wall that complies with the "Guidelines for Road Earthwork Retaining Walls." ○ In road construction sites, it is necessary to accommodate various soil types and different cross-sectional shapes. The Hyper Road L-shaped retaining wall can be safely used even in sites where other precast L-shaped retaining walls are not applicable by providing several lengths of the base slab. ○ The Hyper Road L-shaped retaining wall is a low-carbon concrete product made using blast furnace slag fine powder.

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Reverse L-shaped retaining wall "KGL | MCL"

A retaining wall that resists soil pressure by orienting the base plate in the opposite direction of an L-shaped retaining wall, called a "reverse L-shaped retaining wall"!

This is an inverted L-shaped retaining wall, installed with the base plate oriented opposite to that of a standard L-shaped retaining wall. KGL | Inverted L-shaped retaining wall | H = 0.5 to 3.0m MCL | Large inverted L-shaped retaining wall | H = 3.1 to 5.0m Due to its inverted L shape, the width of the land and the amount of excavation required are minimized.

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Oblique Large Box Culvert "FA Box"

Large box culvert 'FA Box' with improved constructability and cost-effectiveness by combining slabs.

The FA box is a construction method that combines precast components divided into three parts with cast-in-place concrete to create a large cross-section box. - The product's structure consists of a combination of slabs, resulting in low manufacturing costs! - By using a separated structure (segmentation) for the top slab and side walls, it has become possible to standardly accommodate sites with slopes. - The connection is easily achieved by integrating with cast-in-place concrete using loop joints!

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Precast L-shaped retaining wall with fence foundation 'SL-F'

L-shaped retaining wall with fence foundation that can be easily installed.

■ This is an L-shaped retaining wall standardized in accordance with the "Guidelines for Road Earthworks - Retaining Walls," which allows for the installation of pedestrian and bicycle fences or barriers at the top of the wall. ■ A horizontal load of 0.4 kN/m is assumed for the protective fence. ■ There are two types available: one for sidewalk loads and one for roadway loads. ■ In addition to road retaining walls, it has various applications such as parking lots and outfield fences in baseball fields. ■ Post holes are provided at intervals of 1.0 m. ■ It is standardized from H800 to H3,500. This is an L-shaped retaining wall that allows for the installation of pedestrian and bicycle fences or barriers at the top of the wall.

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Precast L-shaped retaining wall with vehicle protection fence foundation 'SL-G'

Industry first! Vehicle protective fence foundation PCa L-shaped retaining wall that can be processed with slanted cuts.

■NETIS CB-100045-A (Publication Ended) ■This is a road L-shaped retaining wall that has been standardized in accordance with the "Guidelines for Road Earthworks - Retaining Wall Works" and "Installation Standards and Explanations for Protective Fences," integrating a foundation for vehicle protective fences. ■By integrating the L-shaped retaining wall with the foundation for vehicle protective fences, significant cost reduction and shortening of construction time are achieved, while maximizing the road width. ■It is possible to process the top edge with a slant cut, allowing installation without tilting the product even on a road longitudinal slope of about 15%. ■The standard product can accommodate a horizontal alignment with a minimum radius of approximately R=20m. ■Standardized heights range from H=1,000 to 4,000.

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Super Large Box Culvert "Super Wide Box (SWB)"

Super large box culvert with post-tensioned PC steel materials arranged in the top slab.

■NETIS CB-080002-A (Publication Ended) ■This is a box culvert with a PRC structure using PC steel materials for the top slab and side wall components. ■It is applicable for ultra-large cross-sections ranging from 10.0m to 13.0m in width. (Please consult us if it exceeds 13.0m) ■The top slab and side wall components are made of precast concrete, while the bottom slab component is constructed with cast-in-place concrete. ■To shorten construction time, it is also possible to precast the bottom slab component. ■The angle can be freely set up to 75°. (Please contact us for angles less than 75°) ■It is widely adopted as an alternative to small-scale bridges at many sites.

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PC box culvert

Precast box culverts made of prestressed concrete according to the recommended specifications of JISA 5373 by the National Box Culvert Association.

By placing PC steel materials on the top and bottom plates, the thickness of the members can be reduced, resulting in a lighter weight compared to RC box culverts. Standard sizes range from width 1.8m × height 1.2m to width 5.0m × height 2.5m.

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3-segment large box culvert

A box culvert divided into a top slab component, side wall components, and a cast-in-place bottom slab component.

■ "Three-part large box culvert" is a box culvert that is divided into top slab components, side wall components, and cast-in-place bottom slab components. ■ After assembling the top slab and side wall components manufactured in the factory on-site, cast-in-place concrete is poured into the bottom slab section. ■ Among large box culverts, it is applicable to large cross-sections ranging from 5.5m to 10.0m in width, and the components manufactured in upper and lower parts are integrated using mechanical joints and other methods.

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SL retaining wall・SL-K

L-shaped retaining wall for roads

■It is also possible to accommodate products such as angled cutting and short cutting processing. ■There are two types available depending on soil conditions and other factors.

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SL retaining wall, SL, SL-N - L-shaped retaining wall for roads

There are two types of L-shaped retaining walls for roads with different loading conditions.

■It is also possible to accommodate products such as angled cutting and short cutting processing. ■There are two types with different upper load conditions.

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SL retaining wall - Multi SL-F

L-shaped retaining wall with fence foundation, compatible with top edge slant cutting type.

The "SL Retaining Wall - Multi SL-F" is an L-shaped retaining wall for road use with a protective fence foundation, designed to accommodate any longitudinal slope through sloped processing at the top of the wall (supports slopes up to 15%*1). By integrating the retaining wall and the protective fence foundation, we have significantly simplified the installation work for the protective fence and shortened the construction period. Since posts can be installed at the top of the retaining wall, the road width can be maximized. *Thanks to the specially shaped base plate, it can flexibly accommodate horizontal curves. Post holes are provided at 1-meter intervals, allowing for compatibility with protective fences and fences with post spacings of 2 meters and 3 meters. Under certain conditions, it can also accommodate slopes greater than 15%.

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SL retaining wall; SL-J large L-shaped retaining wall for roads

Segmented all-precast L-shaped retaining wall with a maximum wall height of 10.0m.

■ The "SL Retaining Wall - SL-J" is one of the largest segmented all-precast L-shaped retaining walls in history, with a maximum wall height of 10.0m. ■ It can be applied to wall heights ranging from 5.0m to 10.0m. ■ It allows for easy construction without the need for cast-in-place concrete, achieving a reduction in construction time and labor efficiency on site. ■ It is designed to withstand Level 2 seismic motion (Kh=0.24) and can accommodate top edge sloping (longitudinal gradient). ■ It is possible to install a fence (protective barrier for pedestrians and cyclists) at the top edge, and it can also accommodate a cast-in-place concrete type for the base slab. * Fence post mounting holes can be installed at the top edge as needed.

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SL retaining wall・SL-R- Reverse L-shaped retaining wall for roads

L-shaped retaining wall with the base direction used in reverse from the usual.

■ The "SL Retaining Wall / SL-R" is an effective reverse L-shaped retaining wall for situations where it is difficult to install a heel slab due to boundary lines of the retaining wall site or nearby structures. ■ Being a precast product, it significantly shortens construction time and realizes labor-saving and manpower-reducing on-site work. ■ The sloped processing at the top of the retaining wall not only accommodates longitudinal slopes (up to a 15% slope) but also ■ The special trapezoidal shape of the base slab allows for flexible adaptation to horizontal curves. ■ It is also possible to provide fence installation holes at the top of the retaining wall, making it adaptable to a wide range of site conditions. *1 Depending on conditions, it may also accommodate slopes exceeding 15%. *2 Fence hole adaptation is handled on an individual basis.

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L-shaped retaining wall "KL Wall Type 3"

Shortening construction time and labor-saving! Differentiation of residential land becomes possible, allowing for the creation of uniquely characterized residential developments.

The "KL Wall Type 3" is an L-shaped retaining wall certified by the Minister of Land, Infrastructure, Transport and Tourism, which can be installed where fence installation is needed and where considerations for fall prevention are necessary. Since the front wall is vertical, it allows for effective use of land up to the property boundary. With a rational design, it has a simple structure that offers good workability and excellent cost-effectiveness. Additionally, we also offer lightweight type retaining walls such as "T-LL Wall" and "ALW II." 【Features】 ■ Effective use of residential land area ■ Economical cross-section design ■ Shortened construction period and labor-saving ■ L-shaped retaining wall as a landscape material ■ Consideration for safety *For more details, please refer to the PDF materials or feel free to contact us.

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