going through the blanc this week i got a leaflet about the tunnel
the tunnel will be closed on monday 24th september from 7pm to 6am (11 hours)
the tunnel will also be using an alternate one way system from 9pm to 7am on the following dates
september- 25th,26th, 27th
october- 1st,2nd,3rd,4th,8th,9th,10th,11th,15th,16th,17th,18th,22nd,23rd,24th,25th
waiting time should not exceed 45mins