Section 65-3-71.17 - "Castiglia Interchange" designated(1) The Interstate 10 and Highway 49 interchange in Harrison County is hereby designated, and henceforth shall be known as, the "Castiglia Interchange."(2) The Mississippi State Highway Department is hereby authorized and directed to erect appropriate signs at locations along the interchange.Laws, 1991, ch. 488 § 1, eff. 3/30/1991.