Project complexities, simplified by Alpha:
- Executing flood defence construction within a live National Grid substation, requiring controlled access, security clearance and phased sequencing to maintain uninterrupted transmission operations.
- Undertaking riverbank stabilisation within the River Don under Environment Agency regulatory oversight, including installation of a temporary dam to enable safe in-channel works while maintaining environmental compliance.
- Phased removal and replacement of perimeter fencing along the active security boundary, necessitating temporary electrified fencing systems and enhanced CCTV monitoring to preserve security integrity throughout construction.
- Managing invasive species remediation, including Japanese Knotweed identification, eco-sensitive removal and long-term containment in accordance with environmental best practice and compliance standards.
Scope of Works:
- Construction of a fibre-reinforced concrete flood wall with integral electrified high-security weldmesh fencing.
- Installation of specialist flood protection systems, including flood gates, stop-logs and flood-resistant control building doors.
- Riverbank stabilisation works using rip-rap stone and gabion baskets.
- Upgrading of substation drainage and groundwater management systems, including pumping stations.
- Security and infrastructure enhancements, including temporary electrified fencing, remotely monitored CCTV and upgraded lighting.
- Site restoration and resilience improvements, including gravel cleaning and access upgrades.
