Freeway MotorsNew Helical Ramp for Office and Parking including a Sloped Base Cantilevered Lid and a Free Span Beam Helix RampclientSierra Construction Companykey features57,800 CSF Wall, Radius Slab and Beam Ramp Formworkcompletion datejanuary 2014locationseattle, wascopeform onlyPreviousAll ProjectsNext