Great Northern Engineering Drawing: Cascade Tunnel, Washington, prepared in 1970. Burlington Northern File Number 9531, Reference Number 10105.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, prepared in 1970. Burlington Northern File Number 9531, Reference Number 10105.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101, Sheet 001.

Great Northern Engineering Drawing: Cascade Tunnel, Washington, undated. Burlington Northern File Number 9531, Reference Number 101.

Great Northern Blueprint Number 1335-40-1, Map and Profiles Switchbacks, Old and New Tunnels, Cascade Tunnel, 1949. Other subject categories: Map

Great Northern Blueprint Number 1335-40-3, Map and Profiles Switchbacks, Old and New Tunnels, Cascade Tunnel, 1949. Other subject categories: Map

AFE 1021, Cascade Tunnel, Washington, 1899. Construct Section House. Interstate Commerce Commission Account Number 17, Roadway buildings. Cost: $155. Series I. Lines West. Cascade Division. Other Subject Categories: Roadway Buildings, Section Facilities

AFE 11586, Cascade Tunnel, Washington, 1905. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Series I. Lines West. Other Subject Categories: Repair Facilities, Turntable

AFE 11837, Cascade Tunnel, Washington, 1905. at Tunnel. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Series I. Lines West. Other Subject Categories: Signals, Train Order

AFE 11883, Cascade Tunnel, Washington, 1905. Interstate Commerce Commission Account Number 26, Communication Systems. Series I. Lines West. Other Subject Categories: Communications, Telephone

AFE 12319, Cascade Tunnel, Washington, 1906. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Series I. Lines West. Other Subject Categories: Track, Passing

AFE 12458, Cascade Tunnel, Washington, 1920. Rebuild 22' X 120' Motor House, Destroyed by Fire December 8th, 1919. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Cost: $18530. Series II. Lines West. Cascade Division. Other Subject Categories: Roadway Buildings, Motor Car Shed

AFE 12525, Cascade Tunnel, Washington, 1906. Construct Water Tank. Interstate Commerce Commission Account Number 18, Water Stations. Series I. Lines West. Other Subject Categories: Servicing Facilities, Water

AFE 1267, Cascade Tunnel, Washington, 1894. Temporary - 5 Pocket. Interstate Commerce Commission Account Number 19, Fueling Stations. Cost: $2084. Series GM. Lines West. Cascade Division. Other Subject Categories: Servicing Facilities, Coal

AFE 13164, Cascade Tunnel, Washington, 1907. Construct Crossover. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Series I. Lines West. Other Subject Categories: Track, Track Laying and Removal

AFE 13721, Cascade Tunnel, Washington, 1907. Interstate Commerce Commission Account Number 29, Power Plants. Series I. Lines West. Other Subject Categories: Electric Operations, Catenary

AFE 14140, Cascade Tunnel, Washington, 1920. to Complete Work Subsequent to Federal Control on A.F.E. #12458, Which Provides for Rebuilding 22' X 120' Motor House Burned Down December 8, 1919 by Painting Andplacing Machinery. Interstate Commerce Commission Account Number 17, Roadway buildings. Cost: $8100. Series II. Lines West. Cascade Division. Other Subject Categories: Roadway Buildings, Motor Car Shed

AFE 14330, Cascade Tunnel, Washington, 1908. Place Bunk House. Interstate Commerce Commission Account Number 17, Roadway buildings. Series I. Lines West. Other Subject Categories: Roadway Buildings, Section Facilities

AFE 14535, Cascade Tunnel, Washington, 1920. Place Hayes Derail on Motor Shed Track. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $55. Series II. Lines West. Cascade Division. Other Subject Categories: Track, Other

AFE 14666, Cascade Tunnel, Washington, 1920. Provide Standard Section House and Toilet. Interstate Commerce Commission Account Number 17, Roadway buildings. Cost: $1900. Series II. Lines West. Cascade Division. Other Subject Categories: Roadway Buildings, Section Facilities

AFE 15253, Cascade Tunnel, Washington, 1908. Construct 24 X 66 Eating House. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Cost: $897. Series I. Lines West. Cascade Division. Other Subject Categories: Station Facilities

AFE 153, Cascade Tunnel, Washington, 1896. Construct Privy. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Cost: $10. Series AB. Lines West. Cascade Division. Other Subject Categories: Station Facilities

AFE 1666, Cascade Tunnel, Washington, 1899. with Trolley Line. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $1659. Series I. Lines West. Cascade Division. Other Subject Categories: Track, Yard