Construction continues at Wyandotte Plaza Construction and renovation continued Wednesday at Wyandotte Plaza, 78th and State, where there are new Marshalls and PetSmart stores on the west side of the center. Marshalls grand opening will be May 7, according to its website. Construction and renovation continued Wednesday at Wyandotte Plaza, 78th and State, where there are new Marshalls and PetSmart stores on the west side of the center. Marshalls grand opening will be May 7, according to its website.