We evaluate and record the deterioration of bridges, such as concrete spalling, exposed rebar, salt damage, and fatigue, by each component.
The deterioration of bridges progresses due to multiple factors such as cracking, spalling, exposed rebar, salt damage, and alkali-silica reaction. Systematically understanding "which components are deteriorating and to what extent" directly relates to determining repair priorities and planning maintenance. This service combines close visual inspections and sound tests to evaluate the deterioration status of bridges by component. A report will be created that records the types, locations, and degrees of changes, providing a basis for assessing soundness and making repair decisions. It addresses the needs of those responsible who wish to "organize the current state of aging bridges" and "determine the priority of repairs."
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basic information
【Inspection Methods】 - Close visual inspection (systematic confirmation of all materials) - Sounding inspection (confirmation of delamination and detachment) - Photographic documentation of deformations and sketch records - Condition assessment (in accordance with the Ministry of Land, Infrastructure, Transport and Tourism's damage classification) 【Main Deformations to Confirm】 - Cracks, spalling, exposed rebar - Stains from rust, salt damage, and alkali-silica reaction traces - Corrosion of steel components and deterioration of paint - Damage to bearings and expansion devices 【Deliverables】 - Deformation diagrams and photographic records (organized by component and type of deformation) - Inspection reports and condition assessment summaries - Documentation for prioritizing repairs - Deliverables: PDF report, photo data, Excel ledger, etc.
Price information
Individual estimates vary 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】 - Overall understanding of deterioration status in regular bridge inspections (statutory inspections) - Current evaluation for formulating long-term repair plans - Preliminary investigation for design and cost estimation of repair work - Submission of inspection records and maintenance of ledgers to authorities 【Examples of Achievements】 - Investigation of deterioration status and condition assessment of all materials in aging bridges - Detailed inspection and recording of deterioration progression in coastal bridges suspected of salt damage - Preparation of reports for municipalities organizing repair priorities based on regular inspection results - *Details of achievements will be provided in materials or upon inquiry.
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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).





