Costco – Manchester – Opening Hours & Store Details You will find Costco situated at a convenient position on Barton Dock Rd,, about a 4.17 mile drive west of the centre of Manchester, in Stretford (not far from Pocket Park and Playgolf Manchester). This store provides service chiefly to the areas of Mosley, Eccles, Davyhulme, Dumplington, Trafford Park, Barton Upon Irwell, Patricroft and Peel Green. Refer to this page for the specifics on Costco Manchester, including the business times, navigation, product ranges and further information.