Great Northern Engineering Drawing: Office Building at Holgate Street Floor Plan at Seattle, Washington, prepared in 1968. Burlington Northern File Number 9695, Reference Number 10109.

Great Northern Engineering Drawing: Oil Pipeline From Time Oil Renew Anodes at Interbay, Washington, prepared in 1971. Burlington Northern File Number 1530-9, Reference Number 10111.

Great Northern Engineering Drawing: Oil Trap at Interbay, Washington, prepared in 1946. Burlington Northern File Number , Reference Number 10103.

Great Northern Engineering Drawing: Oil Trap at Interbay, Washington, prepared in 1947. Burlington Northern File Number 293-5753-1, Reference Number 10106, Sheet 001.

Great Northern Engineering Drawing: Oil Trap at Interbay, Washington, prepared in 1947. Burlington Northern File Number 293-5753-2, Reference Number 10106, Sheet 002.

Great Northern Engineering Drawing: Oil Trap at Interbay, Washington, prepared in 1947. Burlington Northern File Number 11063-1, Reference Number 10112, Sheet 001.

Great Northern Engineering Drawing: Old South Yard Office 16 Foot X 20 Foot Addition at Interbay, Washington, prepared in 1969. Burlington Northern File Number 9642, Reference Number 10105, Sheet 003.

Great Northern Engineering Drawing: Old South Yard Office 16 Foot X 20 Foot Addition at Interbay, Washington, prepared in 1969. Burlington Northern File Number 9642, Reference Number 10105, Sheet 005.

Great Northern Engineering Drawing: Old South Yard Office 16 Foot X 20 Foot Addition at Interbay, Washington, prepared in 1969. Burlington Northern File Number 9642, Reference Number 10105, Sheet 002.

Great Northern Engineering Drawing: Old South Yard Office 16 Foot X 20 Foot Addition at Interbay, Washington, prepared in 1969. Burlington Northern File Number 9642, Reference Number 10105, Sheet 004.