Unexploded Ordnance
UXO Risk Assessments by Casltedine & Co
Unexploded Ordnance (UXO) Risk Assessments
An Unexploded Ordnance (UXO) Risk Assessment is often required where a development site may be affected by unexploded bombs, wartime ordnance, or historic military activity. A UXO risk assessment report can support a planning application, identify potential ground risks, and demonstrate that a site can be safely developed.
Many areas across the UK were affected by World War II bombing, military training, or historic defence infrastructure. As a result, there is potential for unexploded bombs, air-dropped ordnance, or other military munitions to remain buried below ground. A professional UXO desk study helps determine whether a site may be at risk and whether further investigation or mitigation is required before construction, groundworks, or excavation begin.
A typical UXO risk assessment reviews historic World War II bombing records, known military sites and defence infrastructure, recorded bomb strikes and wartime activity, geological and site-specific ground conditions, proposed groundworks, piling, and excavation methods. It then recommends risk mitigation and safe working procedures if required.
A UXO risk assessment provides a practical way to identify potential risks early in the project. When properly prepared, it helps protect construction workers, reduce unexpected delays, and ensure safe and compliant site development.
Importance of UXO
Unexploded ordnance (UXO) risk assessment is a critical process for protecting lives, infrastructure, and the environment on former military sites, construction projects, and redevelopment land. A professional UXO risk assessment identifies the potential presence of unexploded bombs, shells, grenades, and other hazardous munitions before groundworks begin, helping organisations reduce safety risks, avoid costly delays, and maintain compliance with health and safety regulations. By analysing historical military activity, aerial imagery, and site-specific data, UXO specialists can determine the likelihood of contamination and recommend appropriate mitigation measures. Effective UXO risk assessments are essential for developers, contractors, and landowners who want to ensure safe excavation, minimise project disruption, and demonstrate responsible risk management in high-risk areas.
