Alverstoke Coastal Defence Scheme

Please note that these Alverstoke Scheme webpages are in the process of being updated and will carry on being updated for the duration of the scheme.

Please continue to visit this page for current information.


Following the River Hamble to Portchester Strategy, Alverstoke was highlighted as one of three priority areas for a flood scheme. 

Since the strategy, a design has been developed, with a reinforced concrete wall and a floodgate as the proposed defence for this area. The defences are designed to protect against a 1 in 100 year until 2060.  - This is a 1% Annual Exceedance Probability (AEP), which means a flood of such magnitude has a 1% chance of occurring in any given year. 

March 2021 - The project is now at a stage where construction can commence to provide protection to 142 properties from coastal flood risk. 

Alverstoke Defense Scheme Sailing Alverstoke Defense Scheme Sailing

Alverstoke Related pages

Alverstoke Related Documents