Great Northern Engineering Drawing: Miscellaneous Steel Details, Bridge 20 - Undercrossing, north of Clayton, Washington, Line Segment 376, Milepost 34.37. Sheet 270 - 4691 - 8, undated.

Great Northern Engineering Drawing: Shop Plan - Ball Plates, Bridge 20 - Undercrossing, north of Clayton, Washington, Line Segment 376, Milepost 34.37. Sheet 270 - 4691 - 14, undated.

Great Northern Engineering Drawing: Shop Plan - Girder Beams, Bridge 20 - Undercrossing, north of Clayton, Washington, Line Segment 376, Milepost 34.37. Sheet 270 - 4691 - 12, undated.

Great Northern Engineering Drawing: Shop Plan - Girder Span, Bridge 20 - Undercrossing, north of Clayton, Washington, Line Segment 376, Milepost 34.37. Sheet 270 - 4691 - 13, undated.

AFE 14891, Clayton, Washington, 1920. Construct 690 FeetSpur Track to Serve The Washington Brick, Lime and Sewer Pipe Company. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $0. Series II. Lines West. Marcus Division. Other Subject Categories: Track, Industry

AFE 15154, Clayton, Washington, 1908. Construct New Due to Fire. Interstate Commerce Commission Account Number 30, . Series I. Lines West. Other Subject Categories: Depots, Passenger

AFE 15278, Clayton, Washington, 1908. Move Spur and Extend for Washington Brick, Lime and Manufacturing Company. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Series I. Lines West. Other Subject Categories: Track, Industry

AFE 15308, Clayton, Washington, 1908. Move From O.R.&N Junction, Spokane to Clayton. Interstate Commerce Commission Account Number 30, . Cost: $800. Series I. Lines West. Other Subject Categories: Depots, Combination

AFE 20600, Clayton, Washington, 1912. 2 1/2 Miles North Hl Blodgett. Interstate Commerce Commission Account Number 13, Fences, Snowsheds and Signs. Series I. Lines West. Other Subject Categories: Fences, Right of Way