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:
New Year's Eve evacuation near Howard Davis Park due to gas leak
Plans submitted for Millbrook Park extension
Five Jersey residents on New Year Honours List
All-Jersey cast and chorus take to The Opera House stage
Trekkers raise £25K for Dementia Jersey
Alleged road rage assault on Christmas Eve
Jersey's first Christmas Tractor Run raises more than £10k
Finish line looms for school's Advent Challenge
