Backyard on 5th was built by and is owned and operated by the Sachse Economic Development Corporation. “Backyard on 5th” Backyard on 5th is a “cut above” the standard food truck park. No sitter, no problem. Backyard on 5th offers an enclosed children’s play area, so bring your young diners along! Featuring several food trucks, a bar, live music and a children’s playground. Located in Sachse at 5th St. and Alexander, right off SH 78, three blocks behind Allsups.