Business Loop I-94 - Mandan and Bismarck

One of the longer Business Loops in the system, the Mandan and Bismarck route for I-94 stretches 17.4 miles from rural Exit 147 to an industrial park area at Exit 161. The Morton County portion of Business Loop I-94 stems south from I-94 and ND 25 to overtake old U.S. 10 east into the city of Mandan. The route follows Main Street through the city center to Memorial Highway, which parallels a BNSF Railroad line southeast to Interstate 194 and the Memorial Bridge across the Missouri River.

The Burleigh County section of Business Loop I-94 lines old U.S. 10 along Main Avenue through Downtown Bismarck, ten blocks south of the state capitol. The route turns north from old U.S. 10 and returns to I-94 via the easternmost segment of the Bismarck Expressway (unsigned ND 810).

The two county route is well signed and is the designation posted for the short I-194 spur from Exit 156 south to the Bismarck Expressway.