Design-Build Contract D900043: Kew Gardens Interchange Improvements

This design-build project included six full bridge replacements consisting of the demolition of the existing structures and complete construction of the replacement bridges. In addition, the construction of five new bridges and alignment modifications provided operational improvements to the Grand Central Parkway (GCP), Jackie Robinson Parkway (JRP), and Union Turnpike (UT) in the Kew Gardens Interchange. KC provided geotechnical, structural, utility, and drainage design; risk management; and quality management services. KC’s geotechnical scope of work included assessing boring logs; evaluating subsurface soil conditions and calculating soil parameters; analyzing soil structure using PLAXIS 2D; reviewing loading information for a proposed culvert under a 15-foot embankment; investigating an existing culvert’s structural capacity; coordinating with the contractor to devise various construction plans; and preparing expanded polystyrene (EPS) material specifications, accounting for density and limiting strain values.