Michael Johnson Concrete Construction serves from Duluth to Moose Lake. We are licensed and Insured so you can be sure your work will be done right! We're here to help you with all of your concrete needs! Excavating and site prep. Black dirt, fill dirt, and rock available. Garage Slabs - Driveways - Sidewalks - Flatwork - Excavating - Concrete Cutting. Call us today for a free estimate!