Great Northern Railway Historical Society Blueprint Collection JSBP2167, Hardy, Montana, 1918. Montana Central Railway Blueprint Number 133.K.65, Standard Sections for Tunnels. Solid Rock Sections, Timbered Sections. Authorization for Expenditure 8659. Interstate Commerce Commission Account Number 5, Tunnels and Subways. Other ICC account descriptions: ICC Account Number 5, Tunnel.

Great Northern Railway Historical Society Blueprint Collection JSBP2166, Hardy, Montana, 1918. Montana Central Railway Blueprint, Tunnel # 1. Proposed Change of Grade. Authorization for Expenditure 8659. Interstate Commerce Commission Account Number 5, Tunnels and Subways. Other ICC account descriptions: ICC Account Number 5, Tunnel.

Great Northern Railway Historical Society Blueprint Collection JSBP2131, Grotto, Washington, 1915. 6' X6' Reinforced Concrete Culvert. Plan, Elevation and Sections With Dimensions and Instructions. Authorization for Expenditure 25613. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Culvert.

Great Northern Railway Historical Society Blueprint Collection JSBP2130, Grotto, Washington, 1915. 6' X 6' Reinforced Concrete Culvert. Plan and Elevation With Dimensions. Authorization for Expenditure 25613. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Culvert.

Great Northern Railway Historical Society Blueprint Collection JSBP1921, Granite Falls, Minnesota, 1945. Milwaukee Road Blueprint Number P-665, Milw and Great Northern Crossing at Tower E-122. Site Plan and Plans. Interstate Commerce Commission Account Number 9, Rails. Other ICC account descriptions: ICC Account Number 9, Crossing Frog.

Great Northern Railway Historical Society Blueprint Collection JSBP1670, Glacier Park, Montana, 1926. Proposed Sand Filled Concrete Bumpers. Plans and Sections. Authorization for Expenditure 30395. Interstate Commerce Commission Account Number 10, Other Track Material. Other ICC account descriptions: ICC Account Number 10, Track Bumper.

Great Northern Railway Historical Society Blueprint Collection JSBP1655, Gaynor, Washington, 1915. Great Northern Blueprint Number 7.524, Snowshed. Cross Sections. Authorization for Expenditure 25542. Interstate Commerce Commission Account Number 14, Snow and Sand Fences and Snowsheds. Other ICC account descriptions: ICC Account Number 13, Snow Shed.

Great Northern Railway Historical Society Blueprint Collection JSBP1635, Fridley, Minnesota, 1941. Crossing Frog - Number 2. Site Plan and Plan. Interstate Commerce Commission Account Number 9, Rails. Other ICC account descriptions: ICC Account Number 9, Crossing Frog.

Great Northern Railway Historical Society Blueprint Collection JSBP1626, Freeport, Minnesota, 1917. Great Northern Blueprint Number 147.11, Automatic Street Crossing Bell. (Main Street) - Diagram. Interstate Commerce Commission Account Number 15, Crossings and Signs. Other ICC account descriptions: ICC Account Number 14, Public Crossing.

Great Northern Railway Historical Society Blueprint Collection JSBP1608, Florence, South Dakota, 1918. Minneapolis & St. Louis Railway Blueprint, Bridge # 147. Concrete Box Culvert. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Culvert.