In the mid-1920s, the Interstate Commerace Commission proposed to set railroad freight rates based on a return on the companies inventment in faciflities and costs of operations. The NP made a series of valuation studies in 1926 to set the level of investment in each part of their system.
In 1926, the NP had twelve divisions which were reduced in 1932 to the eight divisions which continued till merger. For a history of the NP divisions, go to Stations & ROW on the left-menu of the Research Home Page.
