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.

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: 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.

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.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1803. Remove industry track. Chief Engineer/Standard Maintenance Procedure AFE Number CE 1859. Correspondence File Number T312. Oregon Trunk Division. Other subject categories: Track Removal.

Spokane, Portland and Seattle Railway Authorization for Expenditure (AFE). President's AFE Number 1738. Furnish heating stoves for section houses, Oakbrook, Oregon, Moody, Oregon and Opal City, Oregon. Necessary to furnish heat as these section houses have never had stoves heretofore. Chief Engineer/Standard Maintenance Procedure AFE Number CE 1793. Correspondence File Number T-17. Oregon Trunk Division. Other subject categories: Structure Section House Stoves.