Spokane, Portland and Seattle Railway Engineering Drawing: Overhead Highway, Bridge 332 - Overhead Highway, north of Rockwell, Washington, Line Segment 047, Milepost 332.0. Sheet 00 - 650, 1947. Note: Timber bridge
Spokane, Portland and Seattle Railway Engineering Drawing: Overhead Crossing, Bridge 312.1 - Highway 14, north of Benge, Washington, Line Segment 047, Milepost 312.1. Sheet TV - 295, 1930. Note: Timber bridge
Spokane, Portland and Seattle Railway Engineering Drawing: Overcrossing, Bridge 7.0 - Maegley Junction, East Saint Johns, Oregon, Line Segment 047, Milepost 7.05. Sheet AA603, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet NO - 303, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge T0.4 - Columbia River, south of Wishram, Washington, Line Segment 053, Milepost 0.37. Sheet WX - 208, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge E126.9 - Willamette River, south of Harrisburg, Oregon, Line Segment 442, Milepost 125.99. Sheet V - 4 - 5, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge 8.8 - Oregon Slough, North of North Portland Junction, Washington, Line Segment 047, Milepost 8.62. Sheet NO 421, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet NO 421D, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet NO 421C, undated.
Spokane, Portland and Seattle Railway Engineering Drawing: Operators House, Bridge 8.8 - Oregon Slough, north of North Portland Junction, Oregon, Line Segment 047, Milepost 8.62. Sheet NO 421F, undated.