The Southsea Coastal Scheme is the UK’s largest local authority-led coastal defences project, worth more than £130m.
During the detailed design phase of a substantial rock revetement, it was found that some of the existing Aids to Navigation would need to be removed, moved or replaced.
Working with Coastal Partners and Royal HaskoningDNV, NASH Maritime was commissioned to conduct an independent assessment of the proposed changes to the Aids to Navigation.
To undertake the review of the proposed design, location, spacing and type of Aids to Navigation we built on earlier work; undertaking a preliminary Navigational Risk Assessment ensuring an evidence and risk based approach underpinned our recommendations.
We also consulted with local statutory and non-statutory stakeholders and undertook vessel traffic analysis.
We were able to develop a rationalised proposed Aids to Navigation scheme bringing considerable cost savings to the project.
Onsite work on this element of the scheme commenced in January 2022 and is expected to be complete by spring 2024.