The southern end of MN 100 continues in Bloomington as Normandale Boulevard (County Road 34, CR 34).

The roadway serves the communities of Bloomington, Edina, St. Louis Park, Golden Valley, Crystal, Robbinsdale and Brooklyn Center.

MN 100 was originally meant as a beltway around the Twin Cities (presumably the reason for the round number) and actually achieved that status for about 20 years in the mid-20th century (although it wasn't a full freeway).

Then old MN 100 followed south on Concord Street into Inver Grove Heights, then east over the railroad bridge into Newport; and then turning north onto Century Avenue in Woodbury, which feeds into current MN 120 north of I-94 in Maplewood / Oakdale.

Due to traffic pattern changes over the years, it is no longer possible to directly follow the path of old MN 100.

As such, it was planned as a state-of-the-art highway, with two lanes in each direction separated by wide medians, bridges at major intersections and railroad crossings, and the first cloverleaf interchanges in Minnesota.

Since the WPA was designed to keep a large number of workers busy, a lot of hand digging was done as opposed to using bulldozers.

These parks were intended for picnicking and featured stone picnic tables, beehive barbecues, waterfalls and so on.

The western leg was completed in 1940, but further construction on the beltway was halted with the United States' entry into World War II.

An extension from then-US 52 (now CR 81) in Robbinsdale to US 10 (near present-day I-35W) in New Brighton was built with federal aid to provide access to industrial areas as an asset to the manufacture of "essential war materials".

The cloverleaf at MN 55 in Golden Valley was changed and rebuilt in 2004 as a signalized single-point urban interchange (SPUI).