Alpha Construction Ltd

01283 733688

info@alphaconstruction.co.uk

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Burwell

Flood defence infrastructure delivered within a live 400kV & 132kV substation environment

Client : National Grid

Location : Cambridgeshire

Contract Value : £2.3m

Project complexities, simplified by Alpha:

  1. Delivering works within a fully operational substation, requiring careful sequencing to maintain uninterrupted operation of critical infrastructure.
  2. Maintaining perimeter security at all times, including phased works to ensure the site remained secure throughout construction.
  3. Integrating new flood defence and drainage systems with existing infrastructure, ensuring reliable long-term performance.
  4. Upgrading drainage and pumping systems within a live environment, requiring controlled delivery to avoid disruption to operational assets.

Scope of Works:

  • Phased removal of the existing security fence, ensuring continuous site protection throughout the works.
  • Construction of almost 1 kilometre of fibre-reinforced concrete flood wall, providing perimeter protection to the existing 400kV and 132kV substations.
  • Installation of high-security electrified weldmesh fencing, integrated with the flood defence system.
  • Installation of 1 No. vehicle flood gate and 1 No. pedestrian flood gate, maintaining controlled access and egress.
  • Upgrade of internal substation drainage systems, including installation of 10 No. groundwater pumping stations to manage flood conditions.
  • Installation of flood-proof doors to critical control buildings, protecting essential infrastructure.
  • Rerouting of access roads and upgrading of site lighting, ensuring safe and continuous operation of the site.

Ready to Build with Confidence?

Let’s shape a smarter, safer, more efficient solution, together.

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Alpha Construction Ltd

Why Alpha Construction Ltd?

We support clients from the earliest stages of a project to help shape practical, buildable solutions before work starts on site.

Adding Value Early

Adding Value Early

Early Contractor Involvement allows us to contribute our delivery experience during the design and planning stages, helping test options against real site conditions and reduce the risk of later change

Trusted Delivery Teams

Trusted Delivery Teams

Our directly employed teams provide continuity, accountability and practical site experience throughout delivery, supporting consistent standards of safety, quality and programme management.

Proven in High-Risk Environments

We regularly deliver projects in live, complex and highly regulated environments where safety, planning and coordination are critical. This experience allows us to manage risk effectively and maintain control of programme and quality, even when conditions are challenging.

Framework & Public Sector Ready

Our processes and reporting are aligned with framework and public sector requirements, supporting strong governance, transparency and compliant delivery throughout the life of a project.

Transparent, Competitive Pricing

Transparent, Competitive Pricing

We provide clear, considered pricing supported by open communication around scope, risk and delivery requirements. This helps clients make informed decisions and maintain greater visibility over costs throughout the project.

Relationship-Driven Delivery

Relationship-Driven Delivery

We work collaboratively with clients, designers and stakeholders to build long-term working relationships based on trust, communication and consistent delivery. This results in smoother projects, quicker resolution of issues, and stronger outcomes over time.

Ready to Build with Confidence?

Let’s shape a smarter, safer, more efficient solution, together.