“We design, draft and attach the precast façade, the exterior of the building which is a concrete wall system that hangs off the main structure,” explains Kevin Potts who is a draft and detailer and co-owner of Denver West Design, a precast concrete design and detailing firm. “Colorado is big on precast concrete.” Denver West Design has been contracted by Rocky Mountain Prestress for the Union Station Project. “We do all the … (Read on here).