RB Civil LLC Share: EngineeringArchitecture & Planning RB Civil LLC Visit Website Request Info 79 Ermine Lane Carbondale, CO 81623 (970) 471-1103 About Map About RB Civil LLC is a civil engineering consulting firm in Carbondale. We are a small business in the Roaring Fork Valley serving communities in the Pitkin, Garfield and Eagle County areas. What's Nearby? Distance: 5 10 15 20 25 50 mi.