Spokane, Portland and Seattle Railway Engineering Drawing: Channel Paving, Bridge 44.3 - Woodard Creek, east of Skamania, Washington, Line Segment 047, Milepost 44.30. Sheet CC - 536, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Beacon Rock Park, Bridge 44.3 - Woodard Creek, east of Skamania, Washington, Line Segment 047, Milepost 44.30. Sheet N - 1 - 11, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Abutment Details, Bridge 47.5 - Access Road, east of Skamania, Washington, Line Segment 047, Milepost 47.46. Sheet 315 - 6991 - 4, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: 35 Foot Deck Plate, Bridge 44.3 - Woodard Creek, east of Skamania, Washington, Line Segment 047, Milepost 44.30, undated.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1524. Extend Dopp's spur just east of Skamania, Washington, 200 feet for the Dopp Lumber Company. Work to be done under the standard side track agreement, account another mill is to be located on this spur. Correspondence File Number 358-1. Vancouver Division. Other subject categories: Track Spur.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1537. Put in a 12 inch cast iron pipe culvert 20 feet long east of the headblock to Dopp's spur near Skamania, Washington, to provide drainage outlet and prevent water from seeping through under track, making a soft roadbed. Correspondence File Number 358-1. Vancouver Division. Other subject categories: Culvert.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1619. Install two whistle posts at public crossing about one and three quarter miles east of Skamania, Washington. Chief Engineer/Standard Maintenance Procedure AFE Number CE 1693. Correspondence File Number 358-4. Vancouver Division. Other subject categories: Signs Whistle Posts.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1960. Relocate pole line at various points from Skamania, Washington to Fallbridge, Washington. Other subject categories: Poles.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1589. Install Hayes derails at Home Valley, Washington and Dopp's Spur to insure proper clearance on main line and secure greater operating safety. Chief Engineer/Standard Maintenance Procedure AFE Number CE 1675. Correspondence File Number 83-1. Vancouver Division. Other subject categories: Derail.