Consultancy Service for Civil Engineering at Broadwater Lake

A civil engineering multidisciplinary consultant is required to deliver Part Three and Four of the works listed below.

The Hillingdon Water Sports Facility and Activity Centre is a replacement for an existing facility displaced by the HS2 railway line. The new site at Broadwater Lake is an abandoned gravel quarry, that is brownfield and unremediated, and assessed as being in ecological decline. The works include the provision of a new main building and club house and ecological centre, workshop and boat shed, and ancillary construction such as carp parks, service roads, including reclamation and dredging. This is an exciting project, based on zero carbon principles, no gas supply is required, and all domestic hot water and heating will be provided by water source heat pumps powered by solar electricity.

Note the entire site is within a Site of Special Scientific Interest (SSSI).

The works are to be split into the following packages;

1.Enabling works such as security, fencing, CCTV, and early removal of asbestos cement contamination. Provided by existing Council measure term contracts.

2.Building works, including the main building, sheds, shelters, play equipment and toilets. With a separate building consultant and building contractor.

3.Civil Engineering works, including horizontal directional drilling for utility access beneath old landfill, a canal and lagoon, the refurbishment off site of an historic canal bridge, the reconstruction of part of a service road, rainwater drainage, sewage attenuation and sewage pumping station, all utility installations (water, storm sewers, foul sewers, telephone, and data, high voltage electricity) including an energy centre for battery storage.

4.Reclamation and dredging in a lake to improve the sailing grounds and provide enhanced ecological habitat and environmental improvement. The surplus material is to be used to create new land area, to locate the main building.

Scope of Civil Engineering Works Multi-Disciplinary Consultant Contract will include Part 3 Civil Engineering Works, and Part 4 Reclamation and Dredging.

A site visit is essential to understand the requirement of this complex site.

Form of contract: JCT Consultancy with amendments.

Contract commencement: June 2024

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Additional information:

The London Borough of Hillingdon is not seeking expressions of interest in this project but has instead invited all interested organisations to tender through the Council's nominated electronic tendering portal, www.capitalesourcing.com Please register on the above portal where the tender documents for this project can be downloaded.