Also known as Wayzata Boulevard, Interstate 394 is a freeway linking Minneapolis with the western suburbs. I-394 replaced U.S. 12 for much of its length, excluding a short stretch west to Wayzata and the spur into Downtown. MnPass (HO/T) lanes run along the route through Minnetonka, Golden Valley and St. Louis Park to I-94 at Lowry Hill.
The short freeway spur from Interstate 94 east to Washington Avenue includes three exit ramps serving the Loring Park, Downtown West and North Loop neighborhoods in addition to the ABC Ramps parking garages.
I-394 below Ramp B includes a tunnel section beneath a portion of Target Field. This may be the only stretch of Interstate that passes below a major sports venue. 06/15/15
Interstate 394 was established by the American Association of State Highway and Transportation Officials (AASHTO) on June 23, 1969 as a spur from I-494 eastward to Downtown Minneapolis. Work to upgrade U.S. 12 (Wayzata Boulevard) to freeway standards from Minnetonka to Downtown Minneapolis was completed during a six year, $420 million project that extended 11 miles.
The new eastbound lanes opened to traffic on September 28, 1991. The eastbound frontage road was converted to two-way traffic at that time. Westbound traffic shifted from the north frontage road onto the freeway between Florida Avenue and General Mills Boulevard on October 4, 1991.
Traffic lights remained in use on the freeway for U.S. 12. An eastbound signal at MN 100 was removed on October 14th. Three westbound signals remained in operation at MN 100, Vernon and Louisiana Avenues until Thanksgiving of 1991. Final work upgrading Interstate 394 included building direct links at the east end with the Downtown Minneapolis parking ramps in 1992.1