Experience the construction of the West Park Wet-Weather Storage Facility, a 5.5 million gallon underground concrete storage tank, built under a community baseball field in Wilmette, Illinois. While the highly used park site offered the best location in this fully developed, primarily residential community, it required "buy-in" from the Wilmette Park District. The Park District Board agreed to allow construction at this actively used site with two caveats: 1) only one season of use would be lost, and 2) the existing baseball field would be replaced with an artificial turf field promoting use for multiple sports. The RJN/Boller Construction design-build program offered the best solution to meet the tight construction timeframes. The contract was signed in September 2014 and construction will be completed in November 2015 ahead of schedule and under budget.