Ongoing traffic management during the refurb on Douglas Promenade has cost nearly £356,000.
The figure was revealed in response to a Freedom of Information request which asked what the cost is for the coning and signage in the area while the works are taking place.
The project has come under scrutiny recently, with Infrastructure Minister, Ray Harmer MHK, saying the initiative is currently running around nine weeks behind schedule.
So far it's projected to be completed by October next year.
Manx Utilities wants contractors for HQ refurb
Business needed for Peel coffee shop's 'new chapter'
Regulator freezes gas prices
Billionaire says Island's his favourite place on earth
Planners aren't influenced by advertising, says Cannan
Commissioner to resign over Laxey sewage plans
Santa Dash this lunchtime!
New Dominos branch looking for workers