Our Edinburgh-based Arboricultural Consultancy was approached to carry out a comprehensive tree safety survey on a large site, encompassing both landscaped grounds and natural woodland. The site owner sought to ensure compliance with health and safety regulations, mitigate risks associated with trees near public access areas, and preserve the ecological value of the property.

Objectives

The primary objectives of the survey were:

1. Identifying Potential Hazards: Assess trees for structural defects, decay, or other issues that could pose a risk to safety.
2. Legal Compliance: Address the landowner’s duty of care by ensuring the site meets health and safety standards.
3. Conservation: Retain trees of ecological or aesthetic value where safe to do so, implementing sustainable management practices.

Methodology

The survey was conducted using a combination of ground-based Visual Tree Assessments (VTA) and aerial inspections for higher-risk trees. Our arb consultant employed advanced tools to detect hidden decay and other structural issues.

Steps Taken:

• A comprehensive inspection of over 100 trees across the site.
• Negative reporting approach to record only trees requiring attention, ensuring efficiency.
• Identification of fungal pathogens such as Armillaria mellea and Kretschmaria deusta.
• Bat habitat assessments as part of ecological considerations.

Findings

The tree survey identified:

• Several trees with significant structural defects, including cavities and decay at critical load points.
• Trees in high-traffic areas presenting an elevated risk due to proximity to pathways and public access points.
• A number of trees with minor defects requiring ongoing monitoring rather than immediate action.

Recommendations

Based on the findings of the comprehensive tree survey, the following measures were proposed:

Immediate Actions:

• Removal of high-risk trees to eliminate immediate threats to safety.
• Pruning of unstable limbs to reduce structural stress.

Monitoring:

• Implementing a two-year reinspection cycle for trees with early-stage decay.
• Monitoring for changes in condition, particularly for trees with ecological significance.

Habitat Conservation:

• Retaining trees with minimal safety risk to support biodiversity.
• Installing natural barriers to limit access to areas with retained hazardous features.

Outcome

The tree survey successfully enhanced the safety of the site while preserving its natural beauty and ecological value. The landowner now has a clear management plan, ensuring ongoing compliance with health and safety requirements.