The red brick wall, and gates which can be slotted in when needed, will protect the St Bede's and River Park areas.
Southampton: Two Arrested After Men Seen Lying On Train Tracks
Two men have been arrested after CCTV footage was released by police showing two people lying on tracks used by passing trains.
British Transport Police say a 26-year-old and a 23-year-old were arrested on suspicion of railway obstruction and railway trespass.
They are currently assisting officers with inquiries.
The force earlier released footage of an incident at Woolston station on 2 August.
Inspector Sarah White said: "We would like to thank the members of the public who came forward with valuable information, which greatly assisted our investigation.
"We are not looking for anyone else in relation to this incident."
Red Jet 7 will be built at East Cowes, securing 85 jobs there - and will join the fleet next summer.
Five men have been questioned after shots were heard in Wimborne Road.
24-Year-Old Nikki Henderson Become The Youngest Ever Skipper Of A Clipper Round The World Yacht
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