A Guide to Asbestos-Containing Materials (ACMs) in UK Highway Infrastructure

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Asbestos-containing materials (ACMs) were widely used in construction and infrastructure before their health risks were fully understood. Despite a prohibition on their use in the UK since 1999, older highway infrastructure may still contain ACMs. Proper management of these materials is crucial to ensure compliance with regulations and safeguard health. Here’s a comprehensive guide to understanding ACMs in the context of UK highways.

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Understanding ACMs in Highway Infrastructure

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Many highways and associated structures built over 20 years ago may include ACMs unless specifically documented as removed during maintenance. Examples of locations where ACMs are commonly found include:

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• Highway Structures: Permanent formwork, filler boards in joints, certain waterproofing systems, drainage pipes, and bitumastic coatings.
• Electrical Systems: Panels in electrical cabinets, streetlight fuse assemblies, and communication ducts.
• Buildings: Roofing, insulation, and lagging in depots, shelters, and workshops.
• Tunnels: Cladding panels, rope gaskets, ventilation ducting, and fireproof insulation.

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Regulatory Framework

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The management of ACMs in highway infrastructure falls under the Control of Asbestos Regulations 2012 (CAR12). These regulations impose a Duty to Manage asbestos to minimize exposure risks for workers and the public. The Highways Agency (HA) has implemented a General Asbestos Management Plan (GAMP) to meet these obligations.

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Key Responsibilities

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1. Surveys and Assessments: Identify and assess ACMs, prioritizing older assets.
2. Action Plans: Develop and execute Asbestos Action Plans (AAPs) for all highway assets.
3. Compliance Monitoring: Ensure adherence to the HA's standards through regular audits and reviews.

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Management Strategies

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Asbestos Management Plans

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The GAMP outlines a framework for managing ACMs across all highway assets, including bridges, tunnels, and buildings. Key elements include:

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• Area Asbestos Management Plans (AAMPs): Annual plans detailing asset-specific asbestos management activities.
• Scheme Asbestos Management Plans (SAMPs): Plans for specific projects, such as road widening or bridge refurbishments.

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Inspection and Maintenance

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ACMs are prioritized for inspection based on their age and condition. Maintenance programs target high-risk assets first, integrating asbestos surveys with routine and emergency works.

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Training and Awareness

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Organizations involved in highway maintenance must ensure their staff are trained to handle ACMs safely. Training includes asbestos awareness and compliance with CAR12 regulations.

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Challenges in ACM Management

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Managing ACMs in highway infrastructure presents several challenges:

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• Widespread Presence: The vast number of assets across the highway network complicates management.
• Data Management: Accurate records of ACM locations and conditions must be maintained on databases like HAPMS and SMIS.
• Coordination: Effective communication between contractors, service providers, and stakeholders is essential to manage ACMs safely.

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Monitoring and Continuous Improvement

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The HA regularly reviews its asbestos management strategies to adapt to changing regulations and improve safety measures. Monitoring involves:

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• Audits by the HA Asbestos Management Team.
• Monthly reporting by service providers.
• Feedback loops to update management plans.

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Conclusion

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The legacy of asbestos in UK highway infrastructure underscores the importance of robust management strategies. By adhering to GAMP and CAR12, the HA and its providers aim to minimize risks associated with ACMs while maintaining the integrity of the highway network. Proper training, regular audits, and effective collaboration are the cornerstones of successful asbestos management.

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If you’re involved in highway maintenance or planning, staying informed about ACM regulations and best practices is critical for safety and compliance.