Northern Pacific Engineering Drawing: Concrete Shim Details, Bridge 125 - Underpass, south of Ridgefield, Washington, Line Segment 052, Milepost 125.88. Sheet 1267 - 22, 1947. Note: Concrete spans

Northern Pacific Engineering Drawing: Concrete Arch Undercrossing, Culvert, south of Ridgefield, Washington, Line Segment 052, Milepost 128.38. Sheet 292 - 145, undated.

Northern Pacific Engineering Drawing: Concrete Arch Undercrossing, Culvert, south of Ridgefield, Washington, Line Segment 052, Milepost 128.38. Sheet 292 - 145, undated.

Burlington Northern diesel locomotive 4193, formerly Northern Pacific 913, at Ridgefield, Washington, on April 06, 1971. Number 4193 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83583. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 2239 at Ridgefield, Washington, on April 06, 1971. Number 2239, 714 and 4192 lead a work train unloading ballast. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, hopper car.

Burlington Northern diesel locomotive 2239 at Ridgefield, Washington, on April 06, 1971. Number 2239, 714 and 4192 lead a work train unloading ballast. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, hopper car.

Burlington Northern diesel locomotive 2239 at Ridgefield, Washington, on April 06, 1971. Numbers 2239, 714, and 4192 are leading a freight train. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, river.

Burlington Northern diesel locomotive 2239 at Ridgefield, Washington, on April 06, 1971. Number 2239, 714 and 4192 lead a work train unloading ballast. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, hopper car.