To contribute to the promotion of the PDCA cycle for the maintenance and management of structures, we develop databases such as ledgers, study LCCs, and establish repair plans.

• Road maintenance and management planning
• Road surface survey
• Study of life-cycle costs, etc.
• Repair design

We inspect road structures and conduct detailed surveys. For damage that needs to be repaired, we study repair measures, select the most appropriate repair/reinforcement method, and design in detail.

• Structural inspection services
• Survey, inspection, and repair/reinforcement design of bridges
• Survey, inspection, and repair/reinforcement design of disaster prevention structures
• Tunnel inspection services
• Coating film survey and non-destructive inspection
• Concrete deterioration investigation and material testing

Road structures constructed rapidly and in large numbers during the period of high economic growth are aging noticeably. We support the development of plans for longer service life of road structures.

• Bridge foundation data collection
• Evaluation of soundness and importance of bridges
• Identifying priorities
• Predicting deterioration
• Study of repair and reinforcement measures and budget calculation
• Establishment of plans for longer service life of bridges

Bridges are a key component of the road stock and since they were built rapidly and in large numbers during the period of high economic growth, they are aging noticeably. We assist in developing plans for repair and maintenance to extend the service life of bridges.

• Visualization of bridge soundness
• Development of bridge ledger databases
• Establishment of plans for repair and maintenance to extend the service life of bridges
• Planning of construction methods for bridge repair and reinforcement
• Establishment of optimal bridge maintenance and management plans
• Budget leveling

As the park stock increases, aging facilities are rapidly becoming apparent, and systematic and efficient facility renewal is required. Our experience in designing numerous parks allows us to provide the best renewal and renovation plans.

• Planning for longer service life
• Park facility soundness surveys, accessibility surveys
• Survey and planning for park revitalization

Some existing erosion control facilities date from the late 19th century, and the number of erosion control dams has reached more than 60,000 nationwide. Many of these erosion control facilities are more than 30–50 years old. From the viewpoint of protecting the areas in which these facilities aim to prevent erosion, we study inspection methods, methods of evaluating soundness, priority ranking of countermeasures and construction methods of countermeasures, and progress observation methods. We also develop an annual plan of measures to extend the service life of the facilities.

• River channel planning and detailed revetment design
• Structural seismic reinforcement design
• Erosion control foundation survey
• Detailed design of erosion control dams
• Emergency inspection of erosion control facilities
• River embankment seepage analysis and detailed design of embankment construction
• Preliminary and detailed design of sluices and flumes
• River embankment soundness survey
• Establishment of plans for longer service life of erosion control facilities
• Establishment of plans for longer service life of river gate facilities

Due to the longer service life of each facility, it has become necessary to develop a stock management plan for the entire facility owned by the municipality. To maintain sewerage facilities in good condition in the future, we conduct surveys and diagnoses of deterioration, establish plans for longer service life and stock management, and propose appropriate maintenance and renewal plans.

• Survey and diagnosis of facilities
• Establishment of longer service life plan and proposal of maintenance and management plan
• Execution design for reconstruction and renewal

Using a variety of sensing technologies, we acquire 3D data as the basis for DX. We support the improvement of maintenance efficiency utilizing new inspection technologies and ICT.