Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1105. Installing 2nd hand mail crane at Oakbrook, Oregon. Chief Engineer/Standard Maintenance Procedure AFE Number CE 1224. Correspondence File Number T312. Oregon Trunk Division. Other subject categories: Mail Crane.

Burlington Northern Engineering Drawing: Tie Plan, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet 301 - 8661 - 1, 1983.

Burlington Northern Engineering Drawing: Tie Plan, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet 301 - 8661 - 2, 1983.

Burlington Northern Engineering Drawing: Tie Plan, Bridge T43.7 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.65. Sheet 301 - 8661 - 3, 1983.

Burlington Northern Engineering Drawing: Tie Plan, Bridge T39.7 - Oak Canyon, Oakbrook, Oregon, Line Segment 053, Milepost 39.70. Sheet, 1973.

Burlington Northern Engineering Drawing: Deck Plan, Bridge T44.0 - Deschutes River, south of Oakbrook, Oregon, Line Segment 053, Milepost 43.94. Sheet 301 - 8474 - 1, 1982.