We will thoroughly understand the deterioration status of bridges and tunnels that have been in place for many years since their construction, supporting decisions on repairs and replacements.
Bridges and tunnels that have been constructed for several decades may be experiencing complex deterioration. "I want to determine how to maintain and renew aging facilities," and "I need data to support the decision between repair or replacement" — detailed understanding of the current situation is essential for addressing these issues. This service conducts detailed inspections, condition assessments, and prioritization of repairs for aging bridges and tunnels. We will prepare reports that serve as decision-making materials for repairs or replacements and support the development of maintenance management plans.
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basic information
【Investigation Methods】 - Close visual inspection and sound testing (detailed deformation records) - Condition assessment (in accordance with the Ministry of Land, Infrastructure, Transport and Tourism's evaluation criteria) - Organization of repair priority and urgency - Preparation of reference materials for repair and replacement decisions 【Main Verification Items】 - Evidence of concrete carbonation, salt damage, and alkali-silica reaction - Corrosion, deformation, and fatigue damage of steel components - Damage to accessories such as bearings and expansion devices - Conditions of tunnel lining such as uplift, spalling, and water leakage 【Deliverables】 - Condition assessment and repair priority organization materials - Deformation diagrams and photo records (detailed records) - Reference materials for repair and replacement decisions - Delivery: PDF report, photo data, Excel ledger, etc.
Price information
Individual Estimate The cost varies depending on the content of the investigation, the scale of the facility, site conditions, and the type of deliverables. Please feel free to consult with us first.
Applications/Examples of results
【Purpose】 - Understanding the current condition and assessing the health of aging bridges and tunnels - Preparing decision-making materials for repairs and replacements - Centralized management and prioritization of aging facilities - Detailed current condition assessment for developing long-life plans 【Examples of Achievements】 - Detailed inspections and health assessments of RC bridge groups that have been in place for over 50 years - A case of a municipality that conducted a comprehensive survey of multiple aging bridges and organized the priorities for repairs and replacements - A case of a road manager who supported detailed investigations of aging tunnels and organized repair policies - *Details of achievements are available in the materials or upon inquiry.
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Company information
Since its establishment in 1966, East Japan Construction Consultant has been proposing "aha!" moments centered around surveying and design technology for many years. Starting with surveying and expanding into design, land acquisition, compensation, and infrastructure maintenance, we have worked as a comprehensive construction consultant to enhance our services. We have been engaged in the development and maintenance of social infrastructure that supports people's safety, security, and economic activities, including roads, rivers, ports, marine surveys, urban planning, and energy. Currently, in addition to our efforts in disaster prevention, mitigation, and national resilience, we are also focusing on digital transformation (DX) through initiatives such as BIM/CIM, AI, UAVs, and ROVs (underwater drones).
