The Principia School is expanding to include a new field house. Clayton Engineering will provide storm sewer, sanitary sewer and water line staking for the project. In addition the sewer improvements will require Metropolitan St. Louis Sewer As-built drawings to confirm installation meets design criteria. The new $31.4 million athletic complex was recently featured in the St. Louis Business Journal. A link to the article is located here: Principia School Begins Construction on Athletic Complex