Extra signs and better traffic management is being brought in around the Tunnel this weekend, to avoid the gridlock seen last Saturday.
The tunnel will be closed westbound again from this evening ((7pm) until Monday morning (6.30am)
The government says it has reviewed the impact that had on traffic flow.
Motorists approaching from the east will be encouraged to stay on the coast road and use Havre des Pas, Mount Bingham and Commercial Buildings.
Those who do head onto Route du Fort will be directed either south along Green Street - in a reversal of the usual one way system - or north past the multistory car park and into town.
Disruption will continue throughout July as a new sewage pipe is laid to allow waste to travel from the east of the island to the Bellozanne Treatment Plant.
The full list of closures:
LOOK INSIDE: Jersey Opera House works expected to finish on time and on budget
Park and Ride trial from St Brelade to town
La Motte Street assault victim transferred to Southampton Hospital
Free beauty treatments to improve mental health of Macmillan Jersey staff
Broad Street renamed for Dementia Awareness Week
Aurora Borealis: Northern Lights visible in Channel Islands due to solar storm
Jersey celebrates 100 years of training nurses with exhibition
Jersey Landlords Associations says licensing scheme is 'a fudge'
