Protecting the world's infrastructure with rope access technology
Protecting the world's infrastructure with rope access technology
Keystone Co., Ltd. is a professional in bridge inspection with extensive experience and achievements.
Qualified professionals, including Road Bridge Inspectors, perform close-up visual inspections using rope access techniques, with numerous successful projects involving special bridges such as long-span bridges and high-pier bridges.
Additionally, by not using work vehicles or large equipment, traffic restrictions are often unnecessary, greatly contributing to cost reduction and shortened construction periods. We can also handle sites with time constraints, such as railway overpasses.
Inspections using rope access are effective for cost reduction as they eliminate the need for scaffolding, shortening the construction period.
• When steep gradients prevent the use of inspection vehicles
• For pedestrian bridges or bridges with vehicle weight restrictions
• On remote islands or other sites where vehicle access is difficult
• When the bridge width is too great for inspection vehicles to reach the center beneath the girders
• For main towers, cables, or arch components that are inaccessible by aerial work platforms
Examples of our deliverables.
[Report Contents]
• Submission of inspection data (field notebooks and photographed images)
• Creation of damage diagrams (CAD)
• Preparation of investigation reports
* Inspections are conducted in accordance with various inspection guidelines.
* Damage assessment and countermeasure classification determination in accordance with each guideline.
* Inspection result organization is flexibly handled to meet your specific requirements.
These documents provide detailed descriptions of our work procedures and technical standards.
Please download and review them for more information.
Q. Is traffic control required?
A. It depends on the site conditions, but in principle, it is not required.
Q. How do you handle insurance and safety management?
A. We are fully covered by workers’ compensation insurance and have maintained a perfect safety record with zero accidents in our 33 years of operation.
Q. Can work be performed in rainy weather?
A. Yes. Since all work is secured by rope, operations can continue safely in light rain and wind.
Q. How long does it take to complete a project?
A. We are flexible and will adjust to meet your timeline requirements.
At our company, we deliver highly efficient bridge inspection services powered by skilled technicians and a passionate team.
We always prioritize your budget, finding the best possible solutions even under tight financial constraints.
We never turn down projects simply because of budget limitations. In fact, we see challenging conditions as opportunities to apply our ingenuity and technical expertise.
Please feel free to contact us for detailed cost estimates.
We also provide flexible formatting of inspection reports to meet your specific needs.
Open year-round, 24-hour reception
Rope Access Survey Specialists
Keystone Corporation
6-1 Kotobukisaki, Kanagahara Nagaokakyo City, Kyoto Prefecture 617-0856
