Olentangy Trail-Arena District Connector Jigsaw Puzzle Olentangy Trail-Arena District Connector The warehouses and smokestacks of yesterday have made way for today’s stadiums and restaurants in a Columbus, Ohio neighborhood--and a new steel bridge maximizes the area’s accessibility for walkers and bikers! The Olentangy Trail-Arena District Connector--designed by structural engineer Burgess & Niple, Inc. and fabricated by AISC member Ohio Structures, Inc.--features an inclined Vierendeel truss constructed with round tube members. The City of Columbus Recreation and Parks Department chose the custom truss design to honor the neighborhood’s industrial past. Assemble the bridge for yourself with our puzzle of the week!