Junction was due to reopen tomorrow
The Broadway junction with Douglas promenade will stay closed over the weekend, as road markings are put down around the new roundabout.
It's been closed for works since the first of June, and was due to reopen tomorrow.
The Department of Infrastructure says the contractors in charge have apologised for the delay.
Broadway will reopen for traffic exiting the prom on Monday 14 June.
Wetherspoons to open its first Isle of Man pub
Pub chain giant to take over 1886 in Douglas
Crosby Wastewater Treatment Works nears completion
Multi-million pound project to be finished on time and within budget
Bus Vannin thanks public for support during Anagh Coar collision
Motorists diverted away from the area during response
UK legislation 'infinitely less draconian' than Island's safe access zones proposals
Campaigner to speak at public meeting this evening