Mile a day paving: In 1959 Northern Improvement became one of the first contractors in the nation to complete one mile of concrete paving in one day, the job was on I-94 near Tappen, ND.
Rural Water Lines
Northern’s system developed in 1971 allows pipe to be plowed at a depth of 7 or more feet.
Wile remodeling a 230 KV line to 345 KV capacity in 1980, Northern Improvement Company added ten feet to each of the 1300 towers to accommodate three additional cables without interrupting service.
An innovation pioneered by Northern Improvement is the use of continuous flow drum-dryer in asphalt paving operations.