This in from a spokesperson on behalf of Island Roads. Ed
We are currently undertaking work to resurface Lake Hill as part of the Highways PFI. As this is a major route, we are working overnight to reduce congestion.
Last night however this area did become congested and the main reason for this was that many motorists were ignoring the signed diversion and attempting to bypass the work via other routes.
We would urge people to follow the advertised diversion while the works – due to be completed by Friday morning – are underway.
Thank you.
