Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T31.8, south of Sinamox, Oregon, Line Segment 053, Milepost 31.77. Sheet RR - 598, 1949.

Spokane, Portland and Seattle Railway Engineering Drawing: Tie Plan, Bridge T29.5, Sinamox, Oregon, Line Segment 053, Milepost 29.45. Sheet NO - 349, 1948.

Spokane, Portland and Seattle Railway Engineering Drawing: Deck Plate Girder (DPG), Bridge T29.5, Sinamox, Oregon, Line Segment 053, Milepost 29.45. Sheet NO - 348A, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Channel Excavation, Bridge T31.8, south of Sinamox, Oregon, Line Segment 053, Milepost 31.77. Sheet 0 - 1 - 22, undated.

Spokane, Portland and Seattle Railway Engineering Drawing: Cast Pedestal, Bridge T29.5, Sinamox, Oregon, Line Segment 053, Milepost 29.45. Sheet RR - 590, undated.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1804. Take up industry track and extend stock chute. Chief Engineer/Standard Maintenance Procedure AFE Number CE 1860. Correspondence File Number T310. Other subject categories: Track Removal.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1534. CREDIT - Take down the semaphore blades, spectacle castings, top castings and lamps from train order signals at North Junction, Oregon, South Junction, Oregon, and Sinamox, Oregon and sell same to Oregon Electric Railway. Correspondence File Number T77-7. Oregon Trunk Division. Other subject categories: Signals Train Order.