ES&S provided complete site planning and design services for the development of a medical park on a greenfield site at the intersection of Providence Road (MO Route 163) and Southampton Drive. The site plan for this 24-acre site called for site layout of an 85,000-sf medical office building and 425-stall parking lot, plus provision for a future Phase II building. Design services included boundary survey, subsurface investigation, site planning, hydrologic evaluation and storm drainage design, and erosion and sediment control. The project incorporated low-impact development design features, such as maximizing overland flow by reducing impervious surface area and enclosed storm drainage, and including several bioretention and detention basins as stormwater BMPs. The large, site retention basin created also serves as an aesthetic water feature for the medical campus. The design included bioretention and a native vegetative buffer around the basin to both reduce and cleanse onsite stormwater runoff via increased infiltration and evapotranspiration. The basin also serves as a source for irrigation water, with a well to supplement water level during dry periods. ES&S provided these services as a subconsultant to prime architectural consultant, SOA. Additional services facilitated by ES&S under subcontract included landscape architecture (Loomis & Associates) and a traffic engineering study (Crawford, Bunte & Brammeier).
Transportation design included the addition of a dual left turn lane from westbound Southampton Drive to southbound Providence Road, which is dual-designated MO Route 163, requiring coordination with MoDOT. Multi-modal features include an onsite fitness trail with connections created to the City of Columbia’s Providence Pedway and a nearby transit stop.