Construction workers at Splash in the Boro are building the framework that will hold in place the wave pool, the heart of an almost $5.7 million expansion meant to propel a tsunami of new visitors into the Statesboro-Bulloch Parks and Recreation Department’s waterpark. “We’re right on schedule,” said Parks and Recreation Director Mike Rollins. “We’re just doing all of the things typically that you have to do at this time of the project.