sentences:  SIU 15 continues around the south and east sides of the Shreveport area, crossing I-49 and ending at I-20 near Haughton.The project would provide a divided, four-lane, limited-access highway on new location between US 171 near the Town of Stonewall in DeSoto Parish, and I-20 near the Town of Haughton in Bossier Parish, a distance of approximately .The project Study Area encompasses portions of Bossier, Caddo, and DeSoto parishes.