Great Northern Railway Historical Society Blueprint Collection JSBP1265, Drury and Corea, Washington, 1916. Great Northern Blueprint Number 12-701 Sheet 12, Extension of Double Track Sections over Turnouts. Sections. Authorization for Expenditure 2202. Interstate Commerce Commission Account Number 14, Snow and Sand Fences and Snowsheds. Other ICC account descriptions: ICC Account Number 13, Snow Shed.