Wheaties17 said "Take #10 north turn on Kirkhams road,I think it’s one mile north of the airport. It takes you to the bridge. "
Just to add some confusion to this discussion, the directions given are not the same bridge. If you go under #1Hwy on Grand Valley Rd and continue west on the gravel road, you are at the bridge closest to the Assiniboine River. If you take #10 north to the first gravel road north of the airport and turn west, you will get to Kirkham's Bridge. The two bridges are separated by about 2-3 miles of winding river.