The busy road's being made two lanes in both directions between Segensworth and Titchfield - it's due to take 18 months.
Theresa May Is 'Destroying Police Service'
The Home Secretary is ''on the precipice of destroying a police service that is admired and replicated throughout the world''.
Thats the opinion of rank-and-file officers about Theresa May's reforms. The Police Federation says they're some of the most radical changes in more than 30 years and will fundamentally change the dynamics of policing.
The warning comes as Mrs May prepares to address the federation's annual conference in Bournemouth, less than a week after 30,000 officers - including more than 200 from Dorset - marched through London to protest against changes to pay, terms and conditions.
The last time police took to the streets, then-home secretary Jacqui Smith was ridiculed at the same conference as she was blamed for a high-profile pay dispute in January 2008.
Paul McKeever, the federation's chairman, will tell Mrs May:
''This is a bad deal for the police service.
''We have less resilience, fewer warranted officers, a weakened front line and a radically altered model of British policing.
''You are on the precipice of destroying a police service that is admired and replicated throughout the world.''
He will add:
''Home Secretary, we are seeing proposals, things being put in place without infrastructure, that will fundamentally change the dynamics of policing.
''You cannot expect officers, those who understood the fiscal situation and accepted that some cuts were necessary, to take an unfair share of the cuts and just sit there and be content with their lot.''
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