Caribou Coffee | Johnston, IA Erickson Balmer Construction is currently building-out a brand new Caribou Coffee in Johnston, IA. This project is located within the Gateway Crossing building that Erickson Balmer is also building. View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize View fullsize