 Traffic levels on the G&P never began to reach the optimistic expectations of the line's backers, and by the early 1910s it was clear that they never would.The railroad's lack of economic viability was realized as early as 1913, when the G&P's substantial construction indebtedness (nearly $6,000,000) was written off by the Northern Pacific in exchange for full ownership of the line.Despite continual efforts to economize, the railroad lost money throughout much of its existence.