Alverstoke Design Overview

Design Overview

Coastal Partners have worked closely with consultant engineers Mott MacDonald on the detailed design. The following gives an overview of the works planned at Alverstoke.

• The Scheme at Alverstoke will cover approximately 120m of coastal frontage at the western end of Stoke Lake.
• The design includes a new L shaped reinforced concrete wall behind the existing wall at the west end of the lake. 
• The design also includes the installation of a set of double leaf floodgates on Little Anglesey Road, which are to be operated by Gosport Borough Council (GBC) in the event of a flood warning.  

Jackie Spencer Bridge

One of the options on the longlist was to construct a tidal gate at the Jackie Spence Bridge, which was rejected for the following reasons:

Environmental impact on the saline lagoon – this was the main cause for rejection as the construction/operational impact and alteration of the saline lagoon is considered environmentally unviable, in addition to:

•               High construction costs

•               Technical suitability

•               Maintenance and operation

•               Not in line with the policy

For these reasons, the option did not meet the appraisal targets and it was not brought forward to the outline design phase.