[3] N-133 begins at a signal-controlled intersection with US 6 (Grand Army of the Republic/West Dodge Road) and North 90th Street in Omaha in Douglas County.

From that intersection N-133 heads northwest along Blair High Road for just over one mile (1.6 km) to a junction with Interstate 680 (I-680) at a diamond interchange (I-680 Exit 6) before leaving Omaha.

)[1][3] After leaving Omaha, N-133 continues north–northeasterly along Blair High Road in rural area in an unincorporated area of Douglas County for about 3.3 miles (5.3 km) to cross Nebraska Highway 36 (N-36/Bennington Road) at a signal-controlled intersection.

After continuing north for roughly 1.2 miles (1.9 km), N-133 curves to head northwest along the northern edge of the Blair Municipal Airport.

(From the roundabout US 30 heads north, then east through Blair toward Missouri Valley in Iowa.