Bismarck Expressway

The Bismarck Expressway is a state highway in Mandan and Bismarck, North Dakota, in the United States. It carries two unsigned highways: Interstate 194 from its west end at exit 156 of I-94 to BL I-94 in Mandan, and North Dakota Highway 810 from BL I-94 in Mandan, around the south side of Bismarck back to BL I-94 in Bismarck. BL I-94 takes the designation from the end of ND 810 to the designation's eastern terminus at I-94 and US 83. The portion in Mandan, even where it is ND 810, is a freeway; once it crosses the Missouri River into Bismarck, it becomes a four-lane surface road.