See Civil Engineering's detailed category ranking
- Reinforced concrete construction
- Steel structure construction
- Foundation construction
- Bridge Construction
- Tunnel construction
- Dam construction
- Road construction
- Railway Construction
- Pipeline Construction
- Airport facilities
- River construction
- Coastal construction
- Harbor Construction
- Power generation facilities
- Water Supply Facilities
- Sewerage facilities
- Waste treatment facilities
- Erosion control works
- Agricultural civil engineering works
- Rainwater infiltration facilities
- Other civil engineering works
- Site and ground investigation
- Dismantling and moving
- Drainage and water removal
- Earth retaining wall/foundation reinforcement
- Earth retaining support
- Retaining wall
- Earthworks
- Paving of sidewalks, roads, parking lots and stadiums
- Exterior snow melting equipment
- Safety devices for the visually impaired
- Piles, caissons, sheet piles
- Ground improvement
- Residential foundations
- Other earthworks, foundation works, and exterior floors
A retaining wall unit boasting reliability. Functionality and beauty showcase the power of design!

Ministry of Land, Infrastructure, Transport and Tourism: Compliant with the Public Building Equipment Construction Standards! Lineup of φ900 and φ1200!

Ideal for aging bridge construction! Used for seismic reinforcement work, performance restoration work, and also for corroded steel structures.

For the foundation of air conditioning outdoor units, eco-cute heat pump units, and oil tanks, as well as for various piping supports. For securing vending machines.

Solve the problems associated with road surface restoration work! There is no need to repeatedly perform temporary repairs like in conventional methods!
Ideal for pothole repairs! Can be applied in rainy weather and submerged areas.

The Tokai Spiral manufactured stainless steel drainage manhole (TS stainless steel drainage manhole TSDR-) can be produced and proposed in various shapes starting from a single unit.

There is a video of the repulsion! It has good cost performance with solar charging and is designed to be waterproof and dustproof, making it suitable for various installation locations. Please use it for bird and animal control.
A must-see for nursery and kindergarten staff! Enjoy a more comfortable sidewalk environment with cork thermal insulation pavement! Product catalog with installation examples is currently available!

A pocket-type rockfall protection net designed to pursue "clear safety" through certification and verification by a public third-party organization, featuring high energy absorption.

It is a street and drainage manhole according to the Ministry of Land, Infrastructure, Transport and Tourism standards.

A construction method that allows for the replacement and expansion of piping branches and valves with minimal water drainage!