Interstate 494 (I-494) is an auxiliary Interstate Highway making up part of a beltway of I-94, circling through the southern and western portions of the Minneapolis–Saint Paul metropolitan area in Minnesota. The road is coupled with I-694 (which circles the northern edge of the Twin Cities metro area) at each end and composes more than half of the major beltway of the region. I-694/I-494 also act as loop routes for I-35E and I-35W. The speed limit on I-494 is . Interstate Highways outside of the loop in Minnesota may be signed as high as . Most highways inside the loop are signed at speeds of or lower, though a few exceptions were added in September 2005, allowing speeds of up to in some places. Those roads had been signed at or higher up until the 1973 oil crisis. Route description The exit numbering of I-494 is unusual in that it begins at the Minnesota River heading westbound (between Eagan and Bloomington) and continues clockwise around the entire beltway, continuing clockwise onto I-694. The last exit east of the Minnesota River is exit 71 to Pilot Knob Road. The first exit west of the river is exit 1A, which grants access to eastbound Minnesota State Highway 5 (MN 5) and Minneapolis–Saint Paul International Airport. The most significant landmark on the length of I-494 is Mall of America, just south of the intersection of I-494 and MN 77. Legally, the route of I-494 is defined as part of unmarked legislative route 393 in Minnesota Statutes § 161.12(5). I-494 is not marked with this legislative number along the actual highway. History Construction on I-494 first began in the late 1950s, and it was finally completed in 1985. With the most recent expansion completed in November 2016 in Plymouth, I-494 is now at least three lanes in each direction for its entire route. A major reconstruction/widening project of I-494 was completed in late 2006 between US Highway 212 (US 212)/MN 5 in Eden Prairie and Carlson Parkway at Minnetonka–Plymouth. There were plans for up to six lanes in each direction for parts of I-494 in Bloomington, but the majority of the city only sees four lanes and sees five in only two spots: eastbound at the East Bush Lake Road exit and further eastbound at the point where I-494 and MN 5 separate from each other. Expansion of the Wakota Bridge between Newport and