Starting this morning, travelling across the Blue Water Bridge may be asked to take part in an international traveller survey.
For US bound traffic the surveys will take place from 8am Wednesday to 8am Thursday and the weekend of August 22nd and 23rd.
If you are coming into Canada, the surveys will be conducted from 8am Thursday August 20th to 8am Friday and the weekend of the 29th and 30th.
OPP officers will be on hand to help direct traffic.
The Ontario Ministry of Transportation says the voluntary survey will take about three to five minutes to complete.
